2014-06-06 20:37:36 +02:00
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README
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======
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This README file describes the port of NuttX to the SAMA4D4-EK
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development board. This board features the Atmel SAMA5D44 microprocessor.
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See http://www.atmel.com for further information.
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2014-06-29 15:40:37 +02:00
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This port was actually performed on a board designated SAMA5D4-MB. This
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board should be equivalent to the SAMA5D4-EK. However, care should be
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taken when I refer to PIO, Connector, or Jumper Usage in this document.
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Please consult the schematic for your actual board-in-hand to verify that
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information.
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SAMA5D44
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--------
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2014-06-07 17:37:17 +02:00
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---------------------------- -------------
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2014-06-06 20:37:36 +02:00
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PARAMETER SAMA5D44
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---------------------------- -------------
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CPU Cortex-A5
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ARM TrustZone Yes
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NEON Multimedia Architecture Yes
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Pin Count 361
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Data Cache 32KiB
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Instruction Cache 32KiB
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L2 Cache 128KiB
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Max. Operating Frequency 533MHz
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SRAM 128KiB
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Max I/O Pins 138
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USB Transceiver 3
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USB Speed Hi-Speed
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USB Interface Host, Device
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SPI 3
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TWI (I2C) 4
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UART 7
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LIN 4
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SSC 2
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Ethernet 2 10/100Mbps
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SD / eMMC 2
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Graphic LCD Yes
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Camera Interface Yes
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Video Decoder Yes
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Soft Modem Yes
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ADC channels 5
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Resistive Touch Screen Yes
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Capacitive Touch Module Yes
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Crypto Engine SHA/AES/TDES
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TRNG Yes
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External Bus Interface 1
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DRAM Memory DDR2/LPDDR,
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SDRAM/LPSDR,
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32-bit
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NAND Interface Yes
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FPU Yes
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MPU / MMU No/Yes
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Timers 9
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Output Compare channels 9
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Input Capture Channels 9
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PWM Channels 4
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32kHz RTC Yes
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Package BGA361
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2014-06-07 17:37:17 +02:00
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---------------------------- -------------
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2014-06-06 20:37:36 +02:00
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Contents
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========
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- Development Environment
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- GNU Toolchain Options
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- IDEs
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- NuttX EABI "buildroot" Toolchain
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- NXFLAT Toolchain
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- Loading Code into SRAM with J-Link
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- Writing to FLASH using SAM-BA
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2014-06-27 00:42:06 +02:00
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- Creating and Using DRAMBOOT
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2014-06-28 17:57:00 +02:00
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- Creating and Using AT25BOOT
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2014-06-06 20:37:36 +02:00
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- Running NuttX from SDRAM
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2014-09-17 19:47:00 +02:00
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- SAMA4D44-MB RevC PIO Usage
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- Board Revisions
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2014-06-06 20:37:36 +02:00
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- Buttons and LEDs
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- Serial Console
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- Networking
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- AT25 Serial FLASH
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- HSMCI Card Slots
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2014-07-30 00:35:47 +02:00
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- Auto-Mounter
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2014-06-06 20:37:36 +02:00
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- USB Ports
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- USB High-Speed Device
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- USB High-Speed Host
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- SDRAM Support
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- NAND Support
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- I2C Tool
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- SAMA5 ADC Support
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- SAMA5 PWM Support
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- RTC
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- Watchdog Timer
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- TRNG and /dev/random
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2014-07-19 19:58:53 +02:00
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- Audio Support
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2014-07-06 01:12:14 +02:00
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- TM7000 LCD/Touchscreen
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2014-08-10 19:34:20 +02:00
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- Tickless OS
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2014-06-06 20:37:36 +02:00
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- SAMA4D4-EK Configuration Options
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- Configurations
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- To-Do List
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Development Environment
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=======================
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2014-06-11 22:45:01 +02:00
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Several possible development environments may be used:
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2014-06-06 20:37:36 +02:00
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- Linux or OSX native
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- Cygwin unders Windows
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- MinGW + MSYS under Windows
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- Windows native (with GNUMake from GNUWin32).
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All testing has been performed using Cygwin under Windows.
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The source has been built only using the GNU toolchain (see below). Other
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toolchains will likely cause problems.
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GNU Toolchain Options
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=====================
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The NuttX make system will support the several different toolchain options.
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All testing has been conducted using the CodeSourcery GCC toolchain. To use
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a different toolchain, you simply need to add change to one of the following
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configuration options to your .config (or defconfig) file:
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CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery under Windows
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CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYL=y : CodeSourcery under Linux
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CONFIG_ARMV7A_TOOLCHAIN_ATOLLIC=y : Atollic toolchain for Windos
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CONFIG_ARMV7A_TOOLCHAIN_DEVKITARM=y : devkitARM under Windows
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CONFIG_ARMV7A_TOOLCHAIN_BUILDROOT=y : NuttX buildroot under Linux or Cygwin (default)
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CONFIG_ARMV7A_TOOLCHAIN_GNU_EABIL=y : Generic GCC ARM EABI toolchain for Linux
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CONFIG_ARMV7A_TOOLCHAIN_GNU_EABIW=y : Generic GCC ARM EABI toolchain for Windows
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The CodeSourcery GCC toolchain is selected with
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CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y and setting the PATH variable
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appropriately.
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NOTE about Windows native toolchains
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------------------------------------
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There are several limitations to using a Windows based toolchain in a
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Cygwin environment. The three biggest are:
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1. The Windows toolchain cannot follow Cygwin paths. Path conversions are
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performed automatically in the Cygwin makefiles using the 'cygpath'
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utility but you might easily find some new path problems. If so, check
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out 'cygpath -w'
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2. Windows toolchains cannot follow Cygwin symbolic links. Many symbolic
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links are used in Nuttx (e.g., include/arch). The make system works
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around these problems for the Windows tools by copying directories
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instead of linking them. But this can also cause some confusion for
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you: For example, you may edit a file in a "linked" directory and find
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that your changes had no effect. That is because you are building the
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copy of the file in the "fake" symbolic directory. If you use a\
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Windows toolchain, you should get in the habit of making like this:
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make clean_context all
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An alias in your .bashrc file might make that less painful.
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IDEs
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====
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NuttX is built using command-line make. It can be used with an IDE, but some
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effort will be required to create the project.
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Makefile Build
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--------------
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Under Eclipse, it is pretty easy to set up an "empty makefile project" and
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simply use the NuttX makefile to build the system. That is almost for free
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under Linux. Under Windows, you will need to set up the "Cygwin GCC" empty
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makefile project in order to work with Windows (Google for "Eclipse Cygwin" -
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there is a lot of help on the internet).
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Native Build
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------------
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Here are a few tips before you start that effort:
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1) Select the toolchain that you will be using in your .config file
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2) Start the NuttX build at least one time from the Cygwin command line
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before trying to create your project. This is necessary to create
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certain auto-generated files and directories that will be needed.
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3) Set up include pathes: You will need include/, arch/arm/src/sam34,
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arch/arm/src/common, arch/arm/src/armv7-m, and sched/.
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4) All assembly files need to have the definition option -D __ASSEMBLY__
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on the command line.
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Startup files will probably cause you some headaches. The NuttX startup file
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is arch/arm/src/sam34/sam_vectors.S. You may need to build NuttX
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one time from the Cygwin command line in order to obtain the pre-built
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startup object needed by an IDE.
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NuttX EABI "buildroot" Toolchain
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================================
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A GNU GCC-based toolchain is assumed. The files */setenv.sh should
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be modified to point to the correct path to the Cortex-M3 GCC toolchain (if
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different from the default in your PATH variable).
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If you have no Cortex-M3 toolchain, one can be downloaded from the NuttX
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2015-06-28 17:14:52 +02:00
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Bitbucket download site (https://bitbucket.org/nuttx/buildroot/downloads/).
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2014-06-06 20:37:36 +02:00
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This GNU toolchain builds and executes in the Linux or Cygwin environment.
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1. You must have already configured Nuttx in <some-dir>/nuttx.
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cd tools
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./configure.sh sama5d4-ek/<sub-dir>
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2. Download the latest buildroot package into <some-dir>
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3. unpack the buildroot tarball. The resulting directory may
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have versioning information on it like buildroot-x.y.z. If so,
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rename <some-dir>/buildroot-x.y.z to <some-dir>/buildroot.
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4. cd <some-dir>/buildroot
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5. Copy the configuration file from the configs/ sub-directory to the
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top-level build directory:
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cp configs/cortexa8-eabi-defconfig-4.8.2 .config
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6a. You may wish to modify the configuration before you build it. For
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example, it is recommended that you build the kconfig-frontends tools,
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generomfs, and the NXFLAT tools as well. You may also want to change
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the selected toolchain. These reconfigurations can all be done with
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make menuconfig
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6b. If you chose to make the configuration with no changes, then you
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should still do the following to make certain that the build
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configuration is up-to-date:
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make oldconfig
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7. make
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8. Edit setenv.h, if necessary, so that the PATH variable includes
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the path to the newly built binaries.
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See the file configs/README.txt in the buildroot source tree. That has more
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details PLUS some special instructions that you will need to follow if you are
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building a Cortex-M3 toolchain for Cygwin under Windows.
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NXFLAT Toolchain
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================
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If you are *not* using the NuttX buildroot toolchain and you want to use
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the NXFLAT tools, then you will still have to build a portion of the buildroot
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tools -- just the NXFLAT tools. The buildroot with the NXFLAT tools can
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2015-06-27 02:13:20 +02:00
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be downloaded from the NuttX Bitbucket download site
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(https://bitbucket.org/patacongo/nuttx/downloads/).
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2014-06-06 20:37:36 +02:00
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This GNU toolchain builds and executes in the Linux or Cygwin environment.
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1. You must have already configured Nuttx in <some-dir>/nuttx.
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cd tools
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./configure.sh sama5d4-ek/<sub-dir>
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2. Download the latest buildroot package into <some-dir>
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3. unpack the buildroot tarball. The resulting directory may
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have versioning information on it like buildroot-x.y.z. If so,
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rename <some-dir>/buildroot-x.y.z to <some-dir>/buildroot.
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4. cd <some-dir>/buildroot
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5. cp configs/cortexm3-defconfig-nxflat .config
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6. make oldconfig
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7. make
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8. Edit setenv.h, if necessary, so that the PATH variable includes
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the path to the newly built NXFLAT binaries.
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NOTE: There are some known incompatibilities with 4.6.3 EABI toolchain
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and the NXFLAT tools. See the top-level TODO file (under "Binary
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loaders") for more information about this problem. If you plan to use
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NXFLAT, please do not use the GCC 4.6.3 EABI toochain.
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Loading Code into SRAM with J-Link
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==================================
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Loading code with the Segger tools and GDB
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------------------------------------------
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1) Change directories into the directory where you built NuttX.
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2) Start the GDB server and wait until it is ready to accept GDB
|
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connections.
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3) Then run GDB like this:
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$ arm-none-eabi-gdb
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(gdb) target remote localhost:2331
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(gdb) mon reset
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(gdb) load nuttx
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(gdb) ... start debugging ...
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Loading code using J-Link Commander
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----------------------------------
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J-Link> r
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J-Link> loadbin <file> <address>
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J-Link> setpc <address of __start>
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|
J-Link> ... start debugging ...
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Writing to FLASH using SAM-BA
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|
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=============================
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Assumed starting configuration:
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1. You have installed the J-Link CDC USB driver (Windows only, there is
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no need to install a driver on any regular Linux distribution),
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2. You have the USB connected to DBGU port (J23)
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3. Terminal configuration: 115200 8N1
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Using SAM-BA to write to FLASH:
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1. Exit the terminal emulation program and remove the USB cable from
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the DBGU port (J23)
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2. Connect the USB cable to the device USB port (J6)
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3. JP9 must open (BMS == 1) to boot from on-chip Boot ROM.
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4. Press and maintain PB4 CS_BOOT button and power up the board. PB4
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CS_BOOT button prevents booting from Nand or serial Flash by
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disabling Flash Chip Selects after having powered the board, you can
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release the PB4 BS_BOOT button.
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5. On Windows you may need to wait for a device driver to be installed.
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6. Start the SAM-BA application, selecting (1) the correct USB serial
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port, and (2) board = at91sama5d4-ek.
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7. The SAM-BA menu should appear.
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8. Select the FLASH bank that you want to use and the address to write
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to and "Execute"
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9. When you are finished writing to FLASH, remove the USB cable from J6
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and re-connect the serial link on USB CDC / DBGU connector (J23) and
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re-open the terminal emulator program.
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10. Power cycle the board.
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|
2014-06-27 00:42:06 +02:00
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|
Creating and Using DRAMBOOT
|
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|
|
|
===========================
|
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|
In order to have more control of debugging code that runs out of DARM,
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|
|
I created the sama5d4-ek/dramboot configuration. That configuration is
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|
|
described below under "Configurations."
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Here are some general instructions on how to build an use dramboot:
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Building:
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|
1. Remove any old configurations (if applicable).
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cd <nuttx>
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make distclean
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2. Install and build the dramboot configuration. This steps will establish
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the dramboot configuration and setup the PATH variable in order to do
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|
|
the build:
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|
cd tools
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|
|
./configure.sh sama5d4-ek/dramboot
|
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|
cd -
|
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|
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|
|
. ./setenv.sh
|
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|
|
Before sourcing the setenv.sh file above, you should examine it and
|
|
|
|
|
|
perform edits as necessary so that TOOLCHAIN_BIN is the correct path
|
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|
|
to the directory than holds your toolchain binaries.
|
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NOTE: Be aware that the default dramboot also disables the watchdog.
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|
Since you will not be able to re-enable the watchdog later, you may
|
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|
|
need to set CONFIG_SAMA5_WDT=y in the NuttX configuration file.
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|
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Then make dramboot:
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make
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|
This will result in an ELF binary called 'nuttx' and also HEX and
|
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|
|
|
binary versions called 'nuttx.hex' and 'nuttx.bin'.
|
|
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|
|
3. Rename the binaries. Since you will need two versions of NuttX: this
|
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|
|
dramboot version that runs in internal SRAM and another under test in
|
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|
|
NOR FLASH, I rename the resulting binary files so that they can be
|
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|
|
distinguished:
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|
|
mv nuttx dramboot
|
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|
|
mv nuttx.hex dramboot.hex
|
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|
|
mv nuttx.bin dramboot.bin
|
|
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|
|
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|
|
|
|
|
|
4. Build the "real" DRAM configuration. This will create the nuttx.hex
|
2014-06-27 01:04:53 +02:00
|
|
|
|
that you will load using dramboot. Note that you must select
|
|
|
|
|
|
CONFIG_SAMA5D4EK_DRAM_BOOT=y. This controls the origin at which the
|
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|
|
|
|
code is linked and positions it correctly for the DRAMBOOT program.
|
2014-06-27 00:42:06 +02:00
|
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|
|
2014-06-27 01:04:53 +02:00
|
|
|
|
5. Restart the system holding DIS_BOOT. You should see the RomBOOT
|
2014-06-27 00:42:06 +02:00
|
|
|
|
prompt on the 115200 8N1 serial console (and nothing) more. Hit
|
|
|
|
|
|
the ENTER key with the focus on your terminal window a few time.
|
|
|
|
|
|
This will enable JTAG.
|
|
|
|
|
|
|
|
|
|
|
|
6. Then start the J-Link GDB server and GDB. In GDB, I do the following:
|
|
|
|
|
|
|
|
|
|
|
|
(gdb) mon heal # Halt the CPU
|
|
|
|
|
|
(gdb) load dramboot # Load dramboot into internal SRAM
|
|
|
|
|
|
(gdb) mon go # Start dramboot
|
|
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|
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|
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|
|
You should see this message:
|
|
|
|
|
|
|
|
|
|
|
|
Send Intel HEX file now
|
|
|
|
|
|
|
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|
|
|
|
Load your program by sending the nuttx.hex via the terminal program.
|
|
|
|
|
|
Then:
|
|
|
|
|
|
|
|
|
|
|
|
(gdb) mon halt # Break in
|
|
|
|
|
|
(gdb) mon reg pc = 0x20000040 # Set the PC to DRAM entry point
|
|
|
|
|
|
(gdb) mon go # And jump into DRAM
|
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|
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|
|
|
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|
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|
|
The dramboot program can also be configured to jump directly into
|
|
|
|
|
|
DRAM without requiring the final halt and go by setting
|
|
|
|
|
|
CONFIG_SAMA5D4EK_DRAM_START=y in the NuttX configuration. However,
|
|
|
|
|
|
since I have been debugging the early boot sequence, the above
|
|
|
|
|
|
sequence has been most convenient for me since it allows me to
|
|
|
|
|
|
step into the program in SDRAM.
|
|
|
|
|
|
|
|
|
|
|
|
7. An option is to use the SAM-BA tool to write the DRAMBOOT image into
|
|
|
|
|
|
Serial FLASH. Then, the system will boot from Serial FLASH by
|
|
|
|
|
|
copying the DRAMBOOT image in SRAM which will run, download the nuttx.hex
|
|
|
|
|
|
file, and then start the image loaded into DRAM automatically. This is
|
|
|
|
|
|
a very convenient usage!
|
|
|
|
|
|
|
|
|
|
|
|
NOTES: (1) There is that must be closed to enable use of the AT25
|
|
|
|
|
|
Serial Flash. (2) If using SAM-BA, make sure that you load the DRAM
|
2014-06-28 17:57:00 +02:00
|
|
|
|
boot program into the boot area via the pull-down menu. (3) If
|
|
|
|
|
|
you don't have SAM-BA, an alternative is to use the AT25BOOT program
|
|
|
|
|
|
described in the next section.
|
|
|
|
|
|
|
2014-06-28 20:38:41 +02:00
|
|
|
|
STATUS: I don't have a working SAM-BA at the moment and there are issues
|
|
|
|
|
|
with my AT25BOOT (see below). I currently work around these issues by
|
|
|
|
|
|
putting DRAMBOOT on a microSD card (as boot.bin). The RomBOOT loader does
|
|
|
|
|
|
boot that image without issue.
|
|
|
|
|
|
|
2014-06-28 17:57:00 +02:00
|
|
|
|
Creating and Using AT25BOOT
|
|
|
|
|
|
===========================
|
|
|
|
|
|
|
|
|
|
|
|
To work around some SAM-BA availability issues that I had at one time,
|
|
|
|
|
|
I created the AT25BOOT program. AT25BOOT is a tiny program that runs in
|
|
|
|
|
|
ISRAM. AT25BOOT will enable SDRAM and configure the AT25 Serial FLASH.
|
|
|
|
|
|
It will prompt and then load an Intel HEX program into SDRAM over the
|
|
|
|
|
|
serial console. If the program is successfully loaded in SDRAM, AT25BOOT
|
|
|
|
|
|
will copy the program at the beginning of the AT26 Serial FLASH.
|
|
|
|
|
|
If the jumpering is set correctly, the SAMA5D4 RomBOOT loader will
|
|
|
|
|
|
then boot the program from the serial FLASH the next time that it
|
|
|
|
|
|
reset.
|
|
|
|
|
|
|
|
|
|
|
|
The AT25BOOT configuration is described below under "Configurations."
|
|
|
|
|
|
|
|
|
|
|
|
Here are some general instructions on how to build an use AT25BOOT:
|
|
|
|
|
|
|
|
|
|
|
|
Building:
|
|
|
|
|
|
1. Remove any old configurations (if applicable).
|
|
|
|
|
|
|
|
|
|
|
|
cd <nuttx>
|
|
|
|
|
|
make distclean
|
|
|
|
|
|
|
|
|
|
|
|
2. Install and build the AT25BOOT configuration. This steps will establish
|
|
|
|
|
|
the AT25BOOT configuration and setup the PATH variable in order to do
|
|
|
|
|
|
the build:
|
|
|
|
|
|
|
|
|
|
|
|
cd tools
|
|
|
|
|
|
./configure.sh sama5d4-ek/at25boot
|
|
|
|
|
|
cd -
|
|
|
|
|
|
. ./setenv.sh
|
|
|
|
|
|
|
|
|
|
|
|
Before sourcing the setenv.sh file above, you should examine it and
|
|
|
|
|
|
perform edits as necessary so that TOOLCHAIN_BIN is the correct path
|
|
|
|
|
|
to the directory than holds your toolchain binaries.
|
|
|
|
|
|
|
|
|
|
|
|
Then make AT25BOOT:
|
|
|
|
|
|
|
|
|
|
|
|
make
|
|
|
|
|
|
|
|
|
|
|
|
This will result in an ELF binary called 'nuttx' and also HEX and
|
|
|
|
|
|
binary versions called 'nuttx.hex' and 'nuttx.bin'.
|
|
|
|
|
|
|
|
|
|
|
|
3. Rename the binaries. If you want to save this version of AT25BOOT so
|
|
|
|
|
|
that it does not get clobbered later, you may want to rename the
|
|
|
|
|
|
binaries:
|
|
|
|
|
|
|
|
|
|
|
|
mv nuttx at25boot
|
|
|
|
|
|
mv nuttx.hex at25boot.hex
|
|
|
|
|
|
mv nuttx.bin at25boot.bin
|
|
|
|
|
|
|
|
|
|
|
|
4. Build the "real" DRAMBOOT configuration. This will create the
|
|
|
|
|
|
dramboot.hex that you will write to the AT25 FLASH using AT25BOOT. See
|
|
|
|
|
|
the section above entitled "Creating and Using AT25BOOT" for more
|
|
|
|
|
|
information.
|
|
|
|
|
|
|
|
|
|
|
|
5. Restart the system holding DIS_BOOT. You should see the RomBOOT
|
|
|
|
|
|
prompt on the 115200 8N1 serial console (and nothing) more. Hit
|
|
|
|
|
|
the ENTER key with the focus on your terminal window a few time.
|
|
|
|
|
|
This will enable JTAG.
|
|
|
|
|
|
|
|
|
|
|
|
6. Then start the J-Link GDB server and GDB. In GDB, I do the following:
|
|
|
|
|
|
|
|
|
|
|
|
(gdb) mon heal # Halt the CPU
|
|
|
|
|
|
(gdb) load at25boot # Load AT25BOOT into internal SRAM
|
|
|
|
|
|
(gdb) mon go # Start AT25BOOT
|
|
|
|
|
|
|
|
|
|
|
|
You should see this message:
|
|
|
|
|
|
|
|
|
|
|
|
Send Intel HEX file now
|
|
|
|
|
|
|
|
|
|
|
|
Load DRAMBOOT by sending the dramboot.hex via the terminal program.
|
|
|
|
|
|
At this point you will get messages indicated whether or not the write
|
|
|
|
|
|
to the AT25 FLASH was successful or not. When you reset the board,
|
|
|
|
|
|
it should then boot from the AT25 Serial FLASH and you should again
|
|
|
|
|
|
get the prompt:
|
|
|
|
|
|
|
|
|
|
|
|
Send Intel HEX file now
|
|
|
|
|
|
|
|
|
|
|
|
But now you are being prompted to load the DRAM program under test
|
|
|
|
|
|
(See the section above entitled "Creating and Using AT25BOOT").
|
|
|
|
|
|
|
|
|
|
|
|
7. An better option, if available, is to use the SAM-BA tool to write the
|
|
|
|
|
|
DRAMBOOT image into Serial FLASH.
|
|
|
|
|
|
|
|
|
|
|
|
NOTES: (1) There is that must be closed to enable use of the AT25
|
|
|
|
|
|
Serial Flash. (2) If using SAM-BA, make sure that you load the DRAM
|
|
|
|
|
|
boot program into the boot area via the pull-down menu.
|
2014-06-27 00:42:06 +02:00
|
|
|
|
|
2014-06-28 20:38:41 +02:00
|
|
|
|
STATUS: While this program works great and appears to correctly write
|
|
|
|
|
|
the binary image onto the AT25 Serial FLASH, the RomBOOT loader will
|
|
|
|
|
|
not boot it! I believe that is because the secure boot loader has some
|
|
|
|
|
|
undocumented requirements that I am unaware of. (2014-6-28)
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
Running NuttX from SDRAM
|
|
|
|
|
|
========================
|
|
|
|
|
|
|
|
|
|
|
|
NuttX may be executed from SDRAM. But this case means that the NuttX
|
|
|
|
|
|
binary must reside on some other media (typically NAND FLASH, Serial
|
2014-06-27 00:42:06 +02:00
|
|
|
|
FLASH) or transferred over some interface (perhaps a UARt or even a
|
|
|
|
|
|
TFTP server). In these cases, an intermediate bootloader such as U-Boot
|
|
|
|
|
|
or Barebox must be used to configure the SAMA5D4 clocks and SDRAM and
|
|
|
|
|
|
then to copy the NuttX binary into SDRAM.
|
|
|
|
|
|
|
|
|
|
|
|
The SRAMBOOT program is another option (see above). But this section
|
|
|
|
|
|
will focus on U-Boot.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
- NuttX Configuration
|
|
|
|
|
|
- Boot sequence
|
|
|
|
|
|
- NAND FLASH Memory Map
|
|
|
|
|
|
- Programming the AT91Boostrap Binary
|
|
|
|
|
|
- Programming U-Boot
|
|
|
|
|
|
- Load NuttX with U-Boot on AT91 boards
|
|
|
|
|
|
|
|
|
|
|
|
TODO: Some drivers may require some adjustments to run from SDRAM. That
|
|
|
|
|
|
is because in this case macros like BOARD_MCK_FREQUENCY are not constants
|
|
|
|
|
|
but are instead function calls: The MCK clock frequency is not known in
|
|
|
|
|
|
advance but instead has to be calculated from the bootloader PLL configuration.
|
|
|
|
|
|
See the TODO list at the end of this file for further information.
|
|
|
|
|
|
|
2014-07-30 22:26:50 +02:00
|
|
|
|
NuttX Configuration
|
|
|
|
|
|
-------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
In order to run from SDRAM, NuttX must be built at origin 0x20008000 in
|
|
|
|
|
|
SDRAM (skipping over SDRAM memory used by the bootloader). The following
|
|
|
|
|
|
configuration option is required:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_BOOT_SDRAM=y
|
|
|
|
|
|
CONFIG_BOOT_RUNFROMSDRAM=y
|
|
|
|
|
|
|
|
|
|
|
|
These options tell the NuttX code that it will be booting and running from
|
|
|
|
|
|
SDRAM. In this case, the start-logic will do to things: (1) it will not
|
|
|
|
|
|
configure the SAMA5D4 clocking. Rather, it will use the clock configuration
|
|
|
|
|
|
as set up by the bootloader. And (2) it will not attempt to configure the
|
|
|
|
|
|
SDRAM. Since NuttX is already running from SDRAM, it must accept the SDRAM
|
|
|
|
|
|
configuration as set up by the bootloader.
|
|
|
|
|
|
|
2014-07-30 22:26:50 +02:00
|
|
|
|
Boot sequence
|
|
|
|
|
|
-------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Reference: http://www.at91.com/linux4sam/bin/view/Linux4SAM/GettingStarted
|
|
|
|
|
|
|
|
|
|
|
|
Several pieces of software are involved to boot a Nutt5X into SDRAM. First
|
|
|
|
|
|
is the primary bootloader in ROM which is in charge to check if a valid
|
|
|
|
|
|
application is present on supported media (NOR FLASH, Serial DataFlash,
|
|
|
|
|
|
NAND FLASH, SD card).
|
|
|
|
|
|
|
|
|
|
|
|
The boot sequence of linux4SAM is done in several steps :
|
|
|
|
|
|
|
|
|
|
|
|
1. The ROM bootloader checks if a valid application is present in FLASH
|
|
|
|
|
|
and if it is the case downloads it into internal SRAM. This program
|
|
|
|
|
|
is usually a second level bootloader called AT91BootStrap.
|
|
|
|
|
|
|
|
|
|
|
|
2. AT91Bootstrap is the second level bootloader. It is in charge of the
|
|
|
|
|
|
hardware configuration. It downloads U-Boot / Barebox binary from
|
|
|
|
|
|
FLASH to SDRAM / DDRAM and starts the third level bootloader
|
|
|
|
|
|
(U-Boot / Barebox)
|
|
|
|
|
|
|
|
|
|
|
|
(see http://www.at91.com/linux4sam/bin/view/Linux4SAM/AT91Bootstrap).
|
|
|
|
|
|
|
|
|
|
|
|
3. The third level bootloader is either U-Boot or Barebox. The third
|
|
|
|
|
|
level bootloader is in charge of downloading NuttX binary from FLASH,
|
|
|
|
|
|
network, SD card, etc. It then starts NuttX.
|
|
|
|
|
|
|
|
|
|
|
|
4. Then NuttX runs from SDRAM
|
|
|
|
|
|
|
2014-07-30 22:26:50 +02:00
|
|
|
|
NAND FLASH Memory Map
|
|
|
|
|
|
---------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Reference: http://www.at91.com/linux4sam/bin/view/Linux4SAM/GettingStarted
|
|
|
|
|
|
|
|
|
|
|
|
0x0000:0000 - 0x0003:ffff: AT91BootStrap
|
|
|
|
|
|
0x0004:0000 - 0x000b:ffff: U-Boot
|
|
|
|
|
|
0x000c:0000 - 0x000f:ffff: U-Boot environment
|
|
|
|
|
|
0x0010:0000 - 0x0017:ffff: U-Boot environement redundant
|
|
|
|
|
|
0x0018:0000 - 0x001f:ffff: Device tree (DTB)
|
|
|
|
|
|
0x0020:0000 - 0x007f:ffff: NuttX
|
|
|
|
|
|
0x0080:0000 - end: Available for use as a NAND file system
|
|
|
|
|
|
|
2014-07-30 22:26:50 +02:00
|
|
|
|
Programming the AT91Boostrap Binary
|
|
|
|
|
|
-----------------------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Reference: http://www.at91.com/linux4sam/bin/view/Linux4SAM/AT91Bootstrap
|
|
|
|
|
|
|
|
|
|
|
|
This section describes how to program AT91Bootstrap binary into the boot
|
|
|
|
|
|
media with SAM-BA tool using NandFlash as boot media.
|
|
|
|
|
|
|
|
|
|
|
|
1. Get AT91BootStrap binaries. Build instructions are available here:
|
|
|
|
|
|
|
|
|
|
|
|
http://www.at91.com/linux4sam/bin/view/Linux4SAM/AT91Bootstrap#Build_AT91Bootstrap_from_sources
|
|
|
|
|
|
|
|
|
|
|
|
A pre-built AT91BootStrap binary is available here:
|
|
|
|
|
|
|
|
|
|
|
|
ftp://www.at91.com/pub/at91bootstrap/AT91Bootstrap3.6.1/sama5d3_xplained-nandflashboot-uboot-3.6.1.bin
|
|
|
|
|
|
|
|
|
|
|
|
2. Start the SAM-BA GUI Application:
|
|
|
|
|
|
|
|
|
|
|
|
- Connect the USB Device interface to your host machine using the USB
|
|
|
|
|
|
Device Cable.
|
|
|
|
|
|
- Make sure that the chip can execute the SAM-BA Monitor.
|
|
|
|
|
|
- Start SAM-BA GUI application.
|
|
|
|
|
|
- Select the board in the drop-down menu and choose the USB connection.
|
|
|
|
|
|
|
|
|
|
|
|
3. In the SAM-BA GUI Application:
|
|
|
|
|
|
|
|
|
|
|
|
- Choose the "NandFlash" tab in the SAM-BA GUI interface.
|
|
|
|
|
|
- Initialize the NandFlash by choosing the "Enable NandFlash" action in
|
|
|
|
|
|
the Scripts rolling menu, then press "Execute" button.
|
|
|
|
|
|
- Erase the NandFlash device by choosing the "Erase All" action, then
|
|
|
|
|
|
press "Execute" button.
|
|
|
|
|
|
- Enable the PMECC by choosing the "Enable OS PMECC parameters" action,
|
|
|
|
|
|
then press "Execute" button.
|
|
|
|
|
|
|
|
|
|
|
|
PMECC
|
|
|
|
|
|
Number of sectors per page: 4
|
|
|
|
|
|
Spare Size: 64
|
|
|
|
|
|
Number of ECC bits required: 4
|
|
|
|
|
|
Size of the ECC sector: 512
|
|
|
|
|
|
ECC offset: 36
|
|
|
|
|
|
|
|
|
|
|
|
- Choose "Send Boot File" action, then press Execute button to select the
|
|
|
|
|
|
at91bootstrap binary file and to program the binary to the NandFlash.
|
|
|
|
|
|
- Close SAM-BA, remove the USB Device cable.
|
|
|
|
|
|
|
2014-07-30 22:26:50 +02:00
|
|
|
|
Programming U-Boot
|
|
|
|
|
|
-------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Reference http://www.at91.com/linux4sam/bin/view/Linux4SAM/U-Boot
|
|
|
|
|
|
|
|
|
|
|
|
1. Get U-Boot Binaries. Build instructions are available here:
|
|
|
|
|
|
|
|
|
|
|
|
http://www.at91.com/linux4sam/bin/view/Linux4SAM/U-Boot#Build_U_Boot_from_sources
|
|
|
|
|
|
|
|
|
|
|
|
A pre-Built binay image is available here:
|
|
|
|
|
|
|
|
|
|
|
|
ftp://www.at91.com/pub/uboot/u-boot-v2013.07/u-boot-sama5d3_xplained-v2013.07-at91-r1.bin
|
|
|
|
|
|
|
|
|
|
|
|
2. Start the SAM-BA GUI Application:
|
|
|
|
|
|
|
|
|
|
|
|
- Connect the USB Device interface to your host machine using the USB
|
|
|
|
|
|
Device Cable.
|
|
|
|
|
|
- Make sure that the chip can execute the SAM-BA Monitor.
|
|
|
|
|
|
- Start SAM-BA GUI application.
|
|
|
|
|
|
- Select the board in the drop-down menu and choose the USB connection.
|
|
|
|
|
|
|
|
|
|
|
|
3. In the SAM-BA GUI Application:
|
|
|
|
|
|
|
|
|
|
|
|
- Choose the NandFlash tab in the SAM-BA GUI interface.
|
|
|
|
|
|
- Initialize the NandFlash by choosing the "Enable NandFlash" action in
|
|
|
|
|
|
the Scripts rolling menu, then press Execute button.
|
|
|
|
|
|
- Enable the PMECC by choosing the "Enable OS PMECC parameters" action,
|
|
|
|
|
|
then press Execute button.
|
|
|
|
|
|
|
|
|
|
|
|
PMECC
|
|
|
|
|
|
Number of sectors per page: 4
|
|
|
|
|
|
Spare Size: 64
|
|
|
|
|
|
Number of ECC bits required: 4
|
|
|
|
|
|
Size of the ECC sector: 512
|
|
|
|
|
|
ECC offset: 36
|
|
|
|
|
|
|
|
|
|
|
|
- Press the "Send File Name" Browse button
|
|
|
|
|
|
- Choose u-boot.bin binary file and press Open
|
|
|
|
|
|
- Enter the proper address on media in the Address text field:
|
|
|
|
|
|
0x00040000
|
|
|
|
|
|
- Press the "Send File" button
|
|
|
|
|
|
- Close SAM-BA, remove the USB Device cable.
|
|
|
|
|
|
|
|
|
|
|
|
You should now be able to interrupt with U-Boot vie the DBGU interface.
|
|
|
|
|
|
|
2014-07-30 22:26:50 +02:00
|
|
|
|
Load NuttX with U-Boot on AT91 boards
|
|
|
|
|
|
-------------------------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Reference http://www.at91.com/linux4sam/bin/view/Linux4SAM/U-Boot
|
|
|
|
|
|
|
|
|
|
|
|
Preparing NuttX image
|
|
|
|
|
|
|
|
|
|
|
|
U-Boot does not support normal binary images. Instead you have to
|
|
|
|
|
|
create an uImage file with the mkimage tool which encapsulates kernel
|
|
|
|
|
|
image with header information, CRC32 checksum, etc.
|
|
|
|
|
|
|
|
|
|
|
|
mkimage comes in source code with U-Boot distribution and it is built
|
|
|
|
|
|
during U-Boot compilation (u-boot-source-dir/tools/mkimage). There
|
|
|
|
|
|
are also sites where you can download pre-built mkimage binaries. For
|
|
|
|
|
|
example: http://www.trimslice.com/wiki/index.php/U-Boot_images
|
|
|
|
|
|
|
|
|
|
|
|
See the U-Boot README file for more information. More information is
|
|
|
|
|
|
also available in the mkimage man page (for example,
|
|
|
|
|
|
http://linux.die.net/man/1/mkimage).
|
|
|
|
|
|
|
|
|
|
|
|
Command to generate an uncompressed uImage file (4) :
|
|
|
|
|
|
|
|
|
|
|
|
mkimage -A arm -O linux -C none -T kernel -a 20008000 -e 20008000 \
|
|
|
|
|
|
-n nuttx -d nuttx.bin uImage
|
|
|
|
|
|
|
|
|
|
|
|
Where:
|
|
|
|
|
|
|
|
|
|
|
|
-A arm: Set architecture to ARM
|
|
|
|
|
|
-O linux: Select operating system. bootm command of u-boot changes
|
|
|
|
|
|
boot method by os type.
|
|
|
|
|
|
-T kernel: Set image type.
|
|
|
|
|
|
-C none: Set compression type.
|
|
|
|
|
|
-a 20008000: Set load address.
|
|
|
|
|
|
-e 20008000: Set entry point.
|
|
|
|
|
|
-n nuttx: Set image name.
|
|
|
|
|
|
-d nuttx.bin: Use image data from nuttx.bin.
|
|
|
|
|
|
|
|
|
|
|
|
This will generate a binary called uImage. If you have the path to
|
|
|
|
|
|
mkimage in your PATH variable, then you can automatically build the
|
|
|
|
|
|
uImage file by adding the following to your .config file:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_RAW_BINARY=y
|
|
|
|
|
|
CONFIG_UBOOT_UIMAGE=y
|
|
|
|
|
|
CONFIG_UIMAGE_LOAD_ADDRESS=0x20008000
|
|
|
|
|
|
CONFIG_UIMAGE_ENTRY_POINT=0x20008040
|
|
|
|
|
|
|
|
|
|
|
|
The uImage file can them be loaded into memory from a variety of sources
|
|
|
|
|
|
(serial, SD card, JFFS2 on NAND, TFTP).
|
|
|
|
|
|
|
|
|
|
|
|
STATUS:
|
|
|
|
|
|
2014-4-1: So far, I am unable to get U-Boot to execute the uImage
|
|
|
|
|
|
file. I get the following error messages (in this case
|
|
|
|
|
|
trying to load from an SD card):
|
|
|
|
|
|
|
|
|
|
|
|
U-Boot> fatload mmc 0 0x22000000 uimage
|
|
|
|
|
|
reading uimage
|
|
|
|
|
|
97744 bytes read in 21 ms (4.4 MiB/s)
|
|
|
|
|
|
|
|
|
|
|
|
U-Boot> bootm 0x22000000
|
|
|
|
|
|
## Booting kernel from Legacy Image at 0x22000000 ...
|
|
|
|
|
|
Image Name: nuttx
|
|
|
|
|
|
Image Type: ARM Linux Kernel Image (uncompressed)
|
|
|
|
|
|
Data Size: 97680 Bytes = 95.4 KiB
|
|
|
|
|
|
Load Address: 20008000
|
|
|
|
|
|
Entry Point: 20008040
|
|
|
|
|
|
Verifying Checksum ... OK
|
|
|
|
|
|
XIP Kernel Image ... OK
|
|
|
|
|
|
FDT and ATAGS support not compiled in - hanging
|
|
|
|
|
|
### ERROR ### Please RESET the board ###
|
|
|
|
|
|
|
|
|
|
|
|
This, however, appears to be a usable workaround:
|
|
|
|
|
|
|
|
|
|
|
|
U-Boot> fatload mmc 0 0x20008000 nuttx.bin
|
|
|
|
|
|
mci: setting clock 257812 Hz, block size 512
|
|
|
|
|
|
mci: setting clock 257812 Hz, block size 512
|
|
|
|
|
|
mci: setting clock 257812 Hz, block size 512
|
|
|
|
|
|
gen_atmel_mci: CMDR 00001048 ( 8) ARGR 000001aa (SR: 0c100025) Command Time Out
|
|
|
|
|
|
mci: setting clock 257812 Hz, block size 512
|
|
|
|
|
|
mci: setting clock 22000000 Hz, block size 512
|
|
|
|
|
|
reading nuttx.bin
|
|
|
|
|
|
108076 bytes read in 23 ms (4.5 MiB/s)
|
|
|
|
|
|
|
|
|
|
|
|
U-Boot> go 0x20008040
|
|
|
|
|
|
## Starting application at 0x20008040 ...
|
|
|
|
|
|
|
|
|
|
|
|
NuttShell (NSH) NuttX-7.2
|
|
|
|
|
|
nsh>
|
|
|
|
|
|
|
|
|
|
|
|
Loading through network
|
|
|
|
|
|
|
|
|
|
|
|
On a development system, it is useful to get the kernel and root file
|
|
|
|
|
|
system through the network. U-Boot provides support for loading
|
|
|
|
|
|
binaries from a remote host on the network using the TFTP protocol.
|
|
|
|
|
|
|
|
|
|
|
|
To manage to use TFTP with U-Boot, you will have to configure a TFTP
|
|
|
|
|
|
server on your host machine. Check your distribution manual or Internet
|
|
|
|
|
|
resources to configure a Linux or Windows TFTP server on your host:
|
|
|
|
|
|
|
|
|
|
|
|
- U-Boot documentation on a Linux host:
|
|
|
|
|
|
http://www.denx.de/wiki/view/DULG/SystemSetup#Section_4.6.
|
|
|
|
|
|
|
|
|
|
|
|
- Another TFTP configuration reference:
|
|
|
|
|
|
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch16_:_Telnet%2C_TFTP%2C_and_xinetd#TFTP
|
|
|
|
|
|
|
|
|
|
|
|
On the U-Boot side, you will have to setup the networking parameters:
|
|
|
|
|
|
|
|
|
|
|
|
1. Setup an Ethernet address (MAC address)
|
|
|
|
|
|
Check this U-Boot network BuildRootFAQ entry to choose a proper MAC
|
|
|
|
|
|
address: http://www.denx.de/wiki/DULG/EthernetDoesNotWork
|
|
|
|
|
|
|
|
|
|
|
|
setenv ethaddr 00:e0:de:ad:be:ef
|
|
|
|
|
|
|
|
|
|
|
|
2. Setup IP parameters:
|
|
|
|
|
|
The board ip address
|
|
|
|
|
|
|
|
|
|
|
|
setenv ipaddr 10.0.0.2
|
|
|
|
|
|
|
|
|
|
|
|
The server ip address where the TFTP server is running
|
|
|
|
|
|
|
|
|
|
|
|
setenv serverip 10.0.0.1
|
|
|
|
|
|
|
|
|
|
|
|
3. saving Environment to flash
|
|
|
|
|
|
|
|
|
|
|
|
saveenv
|
|
|
|
|
|
|
|
|
|
|
|
4. If Ethernet Phy has not been detected during former bootup, reset
|
|
|
|
|
|
the board to reload U-Boot : the Ethernet address and Phy
|
|
|
|
|
|
initialization shall be ok, now
|
|
|
|
|
|
|
|
|
|
|
|
5. Download the NuttX uImage and the root file system to a ram location
|
|
|
|
|
|
using the U-Boot tftp command (Cf. U-Boot script capability chapter).
|
|
|
|
|
|
|
|
|
|
|
|
6. Launch NuttX issuing a bootm or boot command.
|
|
|
|
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If the board has both emac and gmac, you can use following to choose
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which one to use:
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setenv ethact macb0,gmacb0
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setenv ethprime gmacb0
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STATUS:
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|
2014-3-30: These instructions were adapted from the Linux4SAM website
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but have not yet been used.
|
2014-09-17 19:47:00 +02:00
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|
|
2015-05-01 20:09:03 +02:00
|
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|
|
Using JTAG
|
|
|
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|
|
----------
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This description assumes that you have a JTAG debugger such as Segger
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J-Link connected to the SAMA5D3-Xplained.
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1. Start the GDB server
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2. Start GDB
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3. Use the 'target remote localhost:xxxx' command to attach to the GDG
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server
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4. Do 'mon reset' then 'mon go' to start the internal boot loader (maybe
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U-Boot).
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5. Let the boot loader run until it completes SDRAM initialization, then
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do 'mon halt'.
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6. Now you have SDRAM initialized and you use 'load nuttx' to load the
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ELF file into SDRAM.
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7. Use 'file nuttx' to load symbols
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8. Set the PC to the NuttX entry point 'mon pc 0x20008040' and start
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nuttx using 'mon go'.
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|
2014-09-17 19:47:00 +02:00
|
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|
|
SAMA4D44-MB RevC PIO Usage
|
|
|
|
|
|
==========================
|
2014-06-07 17:37:17 +02:00
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Rev. B. 0111A
|
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------------------------------ ------------------- -------------------------
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|
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SAMA5D4 PIO SIGNAL USAGE
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|
------------------------------ ------------------- -------------------------
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PA0/LCDDAT0/TMS PA0 LCDDAT0, TMS
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PA1/LCDDAT1 PA1 LCDDAT1
|
2014-11-18 21:20:31 +01:00
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PA2/LCDDAT2/G1_TXCK PA2 LCDDAT2, G1_TXCK
|
2014-06-07 17:37:17 +02:00
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PA3/LCDDAT3/G1_RXCK PA3 LCDDAT3
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PA4/LCDDAT4/G1_TXEN PA4 LCDDAT4, G1_TXEN
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PA5/LCDDAT5/G1_TXER PA5 LCDDAT5
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PA6/LCDDAT6/G1_CRS PA6 LCDDAT6
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PA7/LCDDAT7 PA7 LCDDAT7
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PA8/LCDDAT8/TCK PA8 LCDDAT8, TCK
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PA9/LCDDAT9/G1_COL PA9 LCDDAT9
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PA10/LCDDAT10/G1_RXDV PA10 LCDDAT10, G1_RXDV
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PA11/LCDDAT11/G1_RXER PA11 LCDDAT11, G1_RXER
|
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PA12/LCDDAT12/G1_RX0 PA12 LCDDAT12, G1_RX0
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PA13/LCDDAT13/G1_RX1 PA13 LCDDAT13, G1_RX1
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PA14/LCDDAT14/G1_TX0 PA14 LCDDAT14, G1_TX0
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PA15/LCDDAT15/G1_TX1 PA15 LCDDAT15, G1_TX1
|
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PA16/LCDDAT16/NTRST PA16 LCDDAT16, NTRST
|
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PA17/LCDDAT17 PA17 LCDDAT17
|
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PA18/LCDDAT18/G1_RX2 PA18 LCDDAT18
|
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PA19/LCDDAT19/G1_RX3 PA19 LCDDAT19
|
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PA20/LCDDAT20/G1_TX2 PA20 LCDDAT20
|
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PA21/LCDDAT21/G1_TX3 PA21 LCDDAT21
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PA22/LCDDAT22/G1_MDC PA22 LCDDAT22, G1_MDC
|
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PA23/LCDDAT23/G1_MDIO PA23 LCDDAT23, G1_MDIO
|
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|
|
PA24/LCDPWM/PCK0 PA24 LCDPWM, EXP
|
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|
|
PA25/LCDDISP/TD0 PA25 LCDDISP, EXP
|
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|
|
PA26/LCDVSYNC/PWMH0/SPI1_NPCS1 PA26 LCDVSYNC
|
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|
PA27/LCDHSYNC/PWML0/SPI1_NPCS2 PA27 LCDHSYNC
|
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|
|
PA28/LCDPCK/PWMH1/SPI1_NPCS3 PA28 LCDPCK
|
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|
|
PA29/LCDDEN/PWML1 PA29 LCDDEN
|
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|
PA30/TWD0 PA30 TWD0
|
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|
|
|
|
PA31/TWCK0 PA31 TWCK0
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
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|
|
PB0/G0_TXCK PB0 G0_TXCK, EXP
|
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|
|
PB1/G0_RXCK/SCK2/ISI_PCK ISI_PCK_PB1 ISI_PCK
|
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|
|
PB2/G0_TXEN PB2 G0_TXEN,EXP
|
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|
|
PB3/G0_TXER/CTS2/ISI_VSYNC ISI_VSYNC_PB3 ISI_VSYNC
|
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|
|
PB4/G0_CRS/RXD2/ISI_HSYNC ISI_HSYNC_PB4 ISI_HSYNC
|
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|
|
|
|
PB5/G0_COL/TXD2/PCK2 ISI_PWD_PB5 ISI_PWD
|
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|
|
PB6/G0_RXDV PB6 G0_RXDV, EXP
|
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|
|
PB7/G0_RXER PB7 G0_RXER, EXP
|
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|
|
PB8/G0_RX0 PB8 G0_RX0, EXP
|
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|
|
PB9/G0_RX1 PB9 G0_RX1, EXP
|
|
|
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|
|
PB10/G0_RX2/PCK2/PWML1 PB10 AUDIO_PCK2, EXP
|
|
|
|
|
|
PB11/G0_RX3/RTS2/PWMH1 ISI_RST_PB11 ISI_RST
|
|
|
|
|
|
PB12/G0_TX0 PB12 G0_TX0, EXP
|
|
|
|
|
|
PB13/G0_TX1 PB13 G0_TX1, EXP
|
|
|
|
|
|
PB14/G0_TX2/SPI2_NPCS1/PWMH0 ZIG_SPI2_NPCS1 ZIG_SPI2_NPCS1
|
|
|
|
|
|
PB15/G0_TX3/SPI2_NPCS2/PWML0 HDMI_RST_PB15 HDMI_RST
|
|
|
|
|
|
PB16/G0_MDC PB16 G0_MDC, EXP
|
|
|
|
|
|
PB17/G0_MDIO PB17 G0_MDIO, EXP
|
|
|
|
|
|
PB18/SPI1_MISO/D8 LCD_SPI1_SO LCD_SPI1_SO
|
|
|
|
|
|
PB19/SPI1_MOSI/D9 LCD_SPI1_SI LCD_SPI1_SI
|
|
|
|
|
|
PB20/SPI1_SPCK/D10 LCD_SPI1_CLK LCD_SPI1_CLK
|
|
|
|
|
|
PB21/SPI1_NPCS0/D11 EXP_PB21 EXP
|
|
|
|
|
|
PB22/SPI1_NPCS1/D12 EXP_PB22 EXP
|
|
|
|
|
|
PB23/SPI1_NPCS2/D13 LCD_SPI1_CS2 LCD_SPI1_NPCS2
|
|
|
|
|
|
PB24/DRXD/D14/TDI PB24 TDI, EXP
|
|
|
|
|
|
PB25/DTXD/D15/TDO PB25 TDO, EXP
|
|
|
|
|
|
PB26/PCK0/RK0/PWMH0 PB26 AUDIO_RK0
|
|
|
|
|
|
PB27/SPI1_NPCS3/TK0/PWML0 PB27 AUDIO, HDMI_TK0, EXP
|
|
|
|
|
|
PB28/SPI2_NPCS3/TD0/PWMH1 PB28 AUDIO, HDMI_TD0, EXP
|
|
|
|
|
|
PB29/TWD2/RD0/PWML1 PB29 AUDIO_RD0, ZIG_TWD2
|
|
|
|
|
|
PB30/TWCK2/RF0 PB30 AUDIO_RF, ZIG_TWCK2
|
|
|
|
|
|
PB31/TF0 PB31 AUDIO, HDMI_TF0, EXP
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PC0/SPI0_MISO/PWMH2/ISI_D8 PC0 AT25_SPI0_SO, ISI_D8
|
|
|
|
|
|
PC1/SPI0_MOSI/PWML2/ISI_D9 PC1 AT25_SPI0_SI, ISI_D9
|
|
|
|
|
|
PC2/SPI0_SPCK/PWMH3/ISI_D10 PC2 AT25_SPI0_SPCK, ISI_D10,
|
|
|
|
|
|
ZIG_PWMH3_PC2
|
|
|
|
|
|
PC3/SPI0_NPCS0/PWML3/ISI_D11 PC3 AT25_SPI0_NCPS0, ISI_D11,
|
|
|
|
|
|
ZIG_PWML3_PC3 (See JP6)
|
|
|
|
|
|
PC4/SPI0_NPCS1/MCI0_CK/PCK1 PC4 MCI0_CK, ISI_MCK, EXP
|
|
|
|
|
|
PC5/D0/MCI0_CDA PC5 MCI0_CDA, NAND_IO0
|
|
|
|
|
|
PC6/D1/MCI0_DA0 PC6 MCI0_DA0, NAND_IO1
|
|
|
|
|
|
PC7/D2/MCI0_DA1 PC7 MCI0_DA1, NAND_IO2
|
|
|
|
|
|
PC8/D3/MCI0_DA2 PC8 MCI0_DA2, NAND_IO3
|
|
|
|
|
|
PC9/D4/MCI0_DA3 PC9 MCI0_DA3, NAND_IO4
|
|
|
|
|
|
PC10/D5/MCI0_DA4 PC10 MCI0_DA4, NAND_IO5
|
|
|
|
|
|
PC11/D6/MCI0_DA5 PC11 MCI0_DA5, NAND_IO6
|
|
|
|
|
|
PC12/D7/MCI0_DA6 PC12 MCI0_DA6, NAND_IO7
|
|
|
|
|
|
PC13/NRD/NANDOE/MCI0_DA7 PC13 MCI0_DA7, NAND_RE
|
|
|
|
|
|
PC14/NWE/NANDWE NAND_WEn NWE, NANDWE
|
|
|
|
|
|
PC15/NCS3 NAND_NCS3 NAND_NCS3
|
|
|
|
|
|
PC16/NANDRDY NAND_RDY NANDRDY
|
|
|
|
|
|
PC17/A21/NANDALE NAND_ALE NAND_ALE
|
|
|
|
|
|
PC18/A22/NANDCLE NAND_CLE NAND_CLE
|
|
|
|
|
|
PC19/ISI_D0/TK1 PC19 ISI_D0
|
|
|
|
|
|
PC20/ISI_D1/TF1 PC20 ISI_D1
|
|
|
|
|
|
PC21/ISI_D2/TD1 PC21 ISI_D2
|
|
|
|
|
|
PC22/ISI_D3/RF1 PC22 ISI_D3
|
|
|
|
|
|
PC23/ISI_D4/RD1 PC23 ISI_D4
|
|
|
|
|
|
PC24/ISI_D5/RK1/PCK1 PC24 ISI_D5
|
|
|
|
|
|
PC25/ISI_D6/TWD3/URXD1 PC25 AUDIO_TWD3, ISI_D6
|
|
|
|
|
|
PC26/ISI_D7/TWCK3/UTXD1 PC26 AUDIO_TWCK3, ISI_D7
|
|
|
|
|
|
PC27/AD0/SPI0_NPCS1/PWML0 AD0_XP AD0_XP
|
|
|
|
|
|
PC28/AD1/SPI0_NPCS2/PWML1 AD1_XM AD1_XM
|
|
|
|
|
|
PC29/AD2/SPI0_NPCS3/PWMFI0 AD2_YP AD2_YP
|
|
|
|
|
|
PC30/AD3/PWMH0 AD3_YM AD3_YM
|
|
|
|
|
|
PC31/AD4/PWMH1 AD4_LR AD4_LR, ADC_INPUT
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PD8/PCK0 PD8 EXP_PCK0
|
|
|
|
|
|
PD9/FIQ USB_OVCUR_PD9 USB_OVCUR_PD9
|
|
|
|
|
|
PD10/CTS0/CDETA ZIG_CTS0_PD10 ZIG_CTS0
|
|
|
|
|
|
PD11/RTS0/SPI2_MISO ZIG_SPI2_MISO_RTS0 ZIG_SPI2_MISO_RTS0
|
|
|
|
|
|
PD12/RXD0/DCENA ZIG_RXD0_PD12 ZIG_RXD0
|
|
|
|
|
|
PD13/TXD0/SPI2_MOSI ZIG_SPI2_MOSI_TXD0 ZIG_SPI2_MOSI_TXD0
|
|
|
|
|
|
PD14/CTS1/CDETB ZIG_CTS1_PD14 ZIG_CTS1
|
|
|
|
|
|
PD15/RTS1/SPI2_SPCK ZIG_SPI2_SPCK_RTS1 ZIG_SPI2_SPCK_RTS
|
|
|
|
|
|
PD16/RXD1/DCENB ZIG_RXD1_PD16 ZIG_RXD1_PD16
|
|
|
|
|
|
PD17/TXD1/SPI2_NPCS0 ZIG_SPI2_NPCS0_TXD1 ZIG_SPI2_NPCS0_TXD
|
|
|
|
|
|
PD18/SENSE0 SENSE0_PD18 SENSE0
|
|
|
|
|
|
PD19/SENSE1 SENSE1_PD19 SENSE1
|
|
|
|
|
|
PD20/SENSE2 SENSE2_PD20 SENSE2
|
|
|
|
|
|
PD21/SENSE3 SENSE3_PD21 SENSE3
|
|
|
|
|
|
PD22/SENSE4 SENSE4_PD22 SENSE4
|
|
|
|
|
|
PD23/SENSE5 N/C N/C
|
|
|
|
|
|
PD24/SENSE6 N/C N/C
|
|
|
|
|
|
PD25/SENSE7 N/C N/C
|
|
|
|
|
|
PD26/SENSE8 N/C N/C
|
|
|
|
|
|
PD27/SENSE9 N/C N/C
|
|
|
|
|
|
PD28/SCK0 N/C PD28
|
|
|
|
|
|
PD29/SCK1 SENSE_DISCH_PD29 SENSE_DISCH
|
|
|
|
|
|
PD30 EXP_PD30 EXP
|
|
|
|
|
|
PD31/SPI0_NPCS2/PCK1 EXP_PD31 EXP
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PE0/A0/NBS0/MCI0_CDB/CTS4 PMIC_IRQ_PE0 PMIC_IRQ
|
|
|
|
|
|
PE1/A1/MCI0_DB0 G0_IRQ_PE1 G0_IRQ
|
|
|
|
|
|
PE2/A2/MCI0_DB1 G1_IRQ_PE2 G1_IRQ
|
|
|
|
|
|
PE3/A3/MCI0_DB2 HDMI_IRQ_PE3 HDMI_IRQ
|
|
|
|
|
|
PE4/A4/MCI0_DB3 AUDIO_IRQ_PE4 AUDIO_IRQ
|
|
|
|
|
|
PE5/A5/CTS3 MCI0_CD_PE5 MCI0_CD
|
|
|
|
|
|
PE6/A6/TIOA3 MCI1_CD_PE6 MCI1_CD
|
2014-06-11 22:45:01 +02:00
|
|
|
|
PE7/A7/TIOB3/PWMFI1 EXP_PE7 EXP
|
2014-06-07 17:37:17 +02:00
|
|
|
|
PE8/A8/TCLK3/PWML3 LED_USER_PE8 LED_USER (D10)
|
|
|
|
|
|
PE9/A9/TIOA2 LED_POWER_PE9 LED_POWER (D9, Red)
|
|
|
|
|
|
PE10/A10/TIOB2 USBA_EN5V_PE10 EN5V_USBA
|
|
|
|
|
|
PE11/A11/TCLK2 USBB_EN5V_PE11 EN5V_USBB
|
|
|
|
|
|
PE12/A12/TIOA1/PWMH2 USBC_EN5V_PE12 EN5V_USBC
|
|
|
|
|
|
PE13/A13/TIOB1/PWML2 PB_USER1_PE13 PB_USER1
|
2014-06-29 19:26:41 +02:00
|
|
|
|
PE14/A14/TCLK1/PWMH3 MCI1_CD_PE14 MCI1_CD ???
|
2014-06-07 17:37:17 +02:00
|
|
|
|
PE15/A15/SCK3/TIOA0 MCI1_PWR_PE15 MCI1_PWR
|
|
|
|
|
|
PE16/A16/RXD3/TIOB0 DBGU_RXD3_PE16 DBGU_RXD3 (See JP19)
|
|
|
|
|
|
PE17/A17/TXD3/TCLK0 DBGU_TXD3_PE17 DBGU_TXD3 (See JP20)
|
|
|
|
|
|
PE18/A18/TIOA5/MCI1_CK PE18 MCI1_CK, EXP
|
|
|
|
|
|
PE19/A19/TIOB5/MCI1_CDA PE19 MCI1_CDA, EXP
|
|
|
|
|
|
PE20/A20/TCLK5/MCI1_DA0 PE20 MCI1_DA0, EXP
|
|
|
|
|
|
PE21/A23/TIOA4/MCI1_DA1 PE21 MCI1_DA1, EXP
|
|
|
|
|
|
PE22/A24/TIOB4/MCI1_DA2 PE22 MCI1_DA2, EXP
|
|
|
|
|
|
PE23/A25/TCLK4/MCI1_DA3 PE23 MCI1_DA3, EXP
|
|
|
|
|
|
PE24/NCS0/RTS3 LCD_PE24 LCD_PE24
|
|
|
|
|
|
PE25/NCS1/SCK4/IRQ LCD_PE25 LCD_PE25
|
|
|
|
|
|
PE26/NCS2/RXD4/A18 RXD4_PE26 RXD4
|
|
|
|
|
|
PE27/NWR1/NBS1/TXD4 TXD4_PE27 TXD4
|
|
|
|
|
|
PE28/NWAIT/RTS4/A19 1Wire_PE28 1-WIRE ROM, LCD, D8 (green)
|
|
|
|
|
|
PE29/DIBP/URXD0/TWD1 SMD_DIBP_PE29 DIBP
|
|
|
|
|
|
PE30/DIBN/UTXD0/TWCK1 SMD_DIBN_PE30 DIBP
|
|
|
|
|
|
PE31/ADTRG USBA_VBUS_PE31 USBA_VBUS_PE31
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-09-17 19:47:00 +02:00
|
|
|
|
Board Revisions
|
|
|
|
|
|
===============
|
|
|
|
|
|
|
|
|
|
|
|
PIO Usage
|
|
|
|
|
|
---------
|
|
|
|
|
|
Most of this work was developed on a SAMA5D4-MB Rev C. board. Here is a
|
|
|
|
|
|
pin-for-pin comparison between the Rev C and Rev E boards. This is a
|
|
|
|
|
|
comparison of signal naming only; some differences are simply due to
|
|
|
|
|
|
differences in naming and any functional differences with no signal name
|
|
|
|
|
|
change would no be noted.
|
|
|
|
|
|
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
PINS SAMA5D44-MB Rev C. SAMA5D44-MB Rev E.
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
PA0-PA31: Identical
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
PB0-PB13: Identical
|
|
|
|
|
|
PB14 ZIG_SPI2_NPCS1 XPRO_SPI2_NPCS1
|
|
|
|
|
|
PB15-PB31: Identical
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
PC0-PC1: Identical
|
|
|
|
|
|
PC2 A-SPCK/ISI_D10/PWMH3 SPCK/ISI_D10/PWMH3
|
|
|
|
|
|
PC3 A-NCPS0/ISI_D11/PWML3 NCPS0/ISI_D11/PWML3
|
|
|
|
|
|
PC4-PC31: Identical
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
PD0-PD9: Identical
|
|
|
|
|
|
PD10 ZIG_CTS0 XPRO_CTS0
|
|
|
|
|
|
PD11 ZIG_SPI2_MISO_RTS0 XPRO_MISO_RTS0
|
|
|
|
|
|
PD12 ZIG_RXD0 XPRO_RXD0
|
|
|
|
|
|
PD13 ZIG_SPI2_MOSI_TXD0 XPRO_MOSI_TXD0
|
|
|
|
|
|
PD14 ZIG_CTS1 XPRO_CTS1
|
|
|
|
|
|
PD15 ZIG_SPI2_SPCK_RTS1 XPRO_SPCK_RTS1
|
|
|
|
|
|
PD16 ZIG_RXD1_PD16 XPRO_RXD1_PD16
|
|
|
|
|
|
PD17 ZIG_SPI2_NPCS0_TXD XPRO_NPCS0_TXD1
|
|
|
|
|
|
PD18 SENSE0 NC
|
|
|
|
|
|
PD19 SENSE1 NC
|
|
|
|
|
|
PD20 SENSE2 NC
|
|
|
|
|
|
PD21 SENSE3 NC
|
|
|
|
|
|
PD22 NSENSE4C NC
|
|
|
|
|
|
PD23-PD27: Identical
|
|
|
|
|
|
PD28 PD28 SCK0
|
|
|
|
|
|
PD29 SENSE_DISCH SCK1
|
|
|
|
|
|
PD30-PD31: Identical
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
PE0-PE13: Identical
|
|
|
|
|
|
PE14 MCI1_CD EXP
|
|
|
|
|
|
PE15-PE30: Identical
|
|
|
|
|
|
PE31 USBA_VBUS_PE31 USBA_VBUS/ADTRG
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
|
|
|
|
|
|
Jumpers
|
|
|
|
|
|
-------
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
Jumpers SAMA5D44-MB Rev C. SAMA5D44-MB Rev E.
|
|
|
|
|
|
---------- --------------------- ---------------------
|
|
|
|
|
|
JP2-J3 Identical function
|
|
|
|
|
|
JP4 Force power on Not present on Rev E.
|
|
|
|
|
|
function selection
|
|
|
|
|
|
JP5-J22 Identical function
|
|
|
|
|
|
JP23 AUDIO_TWD0_PA30 Not present on Rev E.
|
|
|
|
|
|
JP24 Not present on Rev. C For CTS,RTS usage
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
Buttons and LEDs
|
|
|
|
|
|
================
|
|
|
|
|
|
|
|
|
|
|
|
Buttons
|
|
|
|
|
|
-------
|
2014-06-07 17:37:17 +02:00
|
|
|
|
A single button, PB_USER1 (PB2), is available on the SAMA5D4-EK:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
SAMA5D4 PIO SIGNAL USAGE
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PE13/A13/TIOB1/PWML2 PB_USER1_PE13 PB_USER1
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
Closing JP2 will bring PE13 to ground so 1) PE13 should have a weak pull-up,
|
|
|
|
|
|
and 2) when PB2 is pressed, a low value will be senses.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-08 01:06:25 +02:00
|
|
|
|
Support for pollable buttons is enabled with:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_BUTTONS=y
|
|
|
|
|
|
|
|
|
|
|
|
For interrupt driven buttons, add:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_IRQBUTTONS=y
|
|
|
|
|
|
|
|
|
|
|
|
Program interfaces for button access are described in nuttx/include/nuttx/arch.h
|
|
|
|
|
|
|
|
|
|
|
|
There is an example that can be enabled to test button interrupts. That
|
|
|
|
|
|
example is enabled like:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_EXAMPLES_BUTTONS=y
|
|
|
|
|
|
CONFIG_EXAMPLES_BUTTONS_MAX=0
|
|
|
|
|
|
CONFIG_EXAMPLES_BUTTONS_MIN=0
|
|
|
|
|
|
CONFIG_EXAMPLES_BUTTONS_NAME0="PB_USER"
|
|
|
|
|
|
CONFIG_EXAMPLES_IRQBUTTONS_MAX=0
|
|
|
|
|
|
CONFIG_EXAMPLES_IRQBUTTONS_MIN=0
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
LEDs
|
|
|
|
|
|
----
|
2014-06-07 17:37:17 +02:00
|
|
|
|
There are 3 LEDs on the SAMA5D4-EK:
|
|
|
|
|
|
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
SAMA5D4 PIO SIGNAL USAGE
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PE28/NWAIT/RTS4/A19 1Wire_PE28 1-WIRE ROM, LCD, D8 (green)
|
|
|
|
|
|
PE8/A8/TCLK3/PWML3 LED_USER_PE8 LED_USER (D10)
|
|
|
|
|
|
PE9/A9/TIOA2 LED_POWER_PE9 LED_POWER (D9, Red)
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
|
|
|
|
|
|
- D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
|
|
|
|
|
|
is used. I am not sure of the LCD function, but the LED may not be available
|
|
|
|
|
|
if the LCD is used either. We will avoid using D8 just for simplicity.
|
|
|
|
|
|
- D10: Nothing special here. A low output illuminates.
|
|
|
|
|
|
- D9: The Power ON LED. Connects to the via an IRLML2502 MOSFET. This LED will
|
|
|
|
|
|
be on when power is applied but otherwise a low output value will turn it
|
|
|
|
|
|
off.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
|
|
|
|
|
|
defined. In that case, the usage by the board port is defined in
|
|
|
|
|
|
include/board.h and src/sam_leds.c. The LEDs are used to encode OS-related
|
|
|
|
|
|
events as follows:
|
|
|
|
|
|
|
|
|
|
|
|
SYMBOL Meaning LED state
|
2014-06-07 17:37:17 +02:00
|
|
|
|
USER D10 POWER D9
|
2014-06-06 20:37:36 +02:00
|
|
|
|
------------------- ----------------------- -------- --------
|
2014-06-07 17:37:17 +02:00
|
|
|
|
LED_STARTED NuttX has been started OFF ON
|
|
|
|
|
|
LED_HEAPALLOCATE Heap has been allocated OFF ON
|
|
|
|
|
|
LED_IRQSENABLED Interrupts enabled OFF ON
|
|
|
|
|
|
LED_STACKCREATED Idle stack created ON ON
|
2014-06-06 20:37:36 +02:00
|
|
|
|
LED_INIRQ In an interrupt No change
|
|
|
|
|
|
LED_SIGNAL In a signal handler No change
|
|
|
|
|
|
LED_ASSERTION An assertion failed No change
|
|
|
|
|
|
LED_PANIC The system has crashed OFF Blinking
|
|
|
|
|
|
LED_IDLE MCU is is sleep mode Not used
|
|
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
Thus if the D0 and D9 are statically on, NuttX has successfully booted and
|
|
|
|
|
|
is, apparently, running normally. If the red D9 LED is flashing at
|
2014-06-06 20:37:36 +02:00
|
|
|
|
approximately 2Hz, then a fatal error has been detected and the system
|
|
|
|
|
|
has halted.
|
|
|
|
|
|
|
|
|
|
|
|
Serial Console
|
|
|
|
|
|
==============
|
|
|
|
|
|
|
2014-06-14 16:02:58 +02:00
|
|
|
|
Two UART ports are available:
|
|
|
|
|
|
|
|
|
|
|
|
Virtual COM / DBGU Port (J24). Either may be driven by USART3, depending
|
|
|
|
|
|
upon the setting of JP19 and JP20:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
SAMA5D4 PIO SIGNAL USAGE
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PE16/A16/RXD3/TIOB0 DBGU_RXD3_PE16 DBGU_RXD3 (See JP19)
|
|
|
|
|
|
PE17/A17/TXD3/TCLK0 DBGU_TXD3_PE17 DBGU_TXD3 (See JP20)
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
|
2014-06-14 16:02:58 +02:00
|
|
|
|
In one jumper position UART3 connects to the SAM3U which will, in turn,
|
|
|
|
|
|
provide the serial output over a USB virtual COM port. In other other
|
|
|
|
|
|
jumper position, UART3 will connect the RS-232 port labelled DBGU (J24).
|
|
|
|
|
|
|
2014-09-17 19:47:00 +02:00
|
|
|
|
I personally prefer the RS-232 port because my terminal software does not
|
|
|
|
|
|
lose the USB Virtual COM every time I reset or power-cycle the board.
|
2014-06-07 17:37:17 +02:00
|
|
|
|
|
|
|
|
|
|
USART4 TTL-Level
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
SAMA5D4 PIO SIGNAL USAGE
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PE26/NCS2/RXD4/A18 RXD4_PE26 RXD4
|
|
|
|
|
|
PE27/NWR1/NBS1/TXD4 TXD4_PE27 TXD4
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
A TTL-to-RS232 converter is required to use this USART for a serial console.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
- RXD4/PE26 is available at Expansion Interface, J19C pin 59
|
|
|
|
|
|
- TXD4/PE27 is available at Expansion Interface, J19C pin 60
|
|
|
|
|
|
- VCC_3V3 is also available at Expansion Interface, J19B pins 21 and 22
|
|
|
|
|
|
- GND is available J19A pin 11, J19B pin 31, and J19C pin 51
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-14 16:02:58 +02:00
|
|
|
|
By default the RS-232 DBGU port on USART3 is used as the NuttX serial
|
|
|
|
|
|
console in all configurations (unless otherwise noted). USART4, however,
|
|
|
|
|
|
is the also available.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Networking
|
|
|
|
|
|
==========
|
|
|
|
|
|
|
|
|
|
|
|
Networking support via the can be added to NSH by selecting the following
|
2014-06-07 17:37:17 +02:00
|
|
|
|
configuration options. The SAMA5D44 supports two different 10/100Base-T
|
|
|
|
|
|
Ethernet MAC peripherals.
|
|
|
|
|
|
|
2014-07-02 20:17:01 +02:00
|
|
|
|
NOTE: See the "kludge" for EMAC that is documented in the To-Do
|
|
|
|
|
|
list at the end of this README file.
|
|
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-07-01 00:08:29 +02:00
|
|
|
|
SAMA5D4 PIO SAMA5D4-MB KSZ8081RNB
|
2014-06-07 17:37:17 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-07-01 00:08:29 +02:00
|
|
|
|
PB0/G0_TXCK G0_TXCK_PB0 RXF_CLK/B-CAST_OFF
|
|
|
|
|
|
PB1/G0_RXCK/SCK2/ISI_PCK (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB2/G0_TXEN G0_TXEN_PB2 TXEN
|
|
|
|
|
|
PB3/G0_TXER/CTS2/ISI_VSYNC (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB4/G0_CRS/RXD2/ISI_HSYNC (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB5/G0_COL/TXD2/PCK2 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB6/G0_RXDV G0_RXDV_PB6 CRS_DV/CONFIG2
|
|
|
|
|
|
PB7/G0_RXER G0_RXER_PB7 RXER/ISO
|
|
|
|
|
|
PB8/G0_RX0 G0_RX0_PB8 RXD0/DUPLEX
|
|
|
|
|
|
PB9/G0_RX1 G0_RX1_PB9 RXD1/PHYAD2
|
|
|
|
|
|
PB10/G0_RX2/PCK2/PWML1 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB11/G0_RX3/RTS2/PWMH1 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB12/G0_TX0 G0_TX0_PB12 TXD0
|
|
|
|
|
|
PB13/G0_TX1 G0_TX1_PB13 TXD1
|
|
|
|
|
|
PB14/G0_TX2/SPI2_NPCS1/PWMH0 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB15/G0_TX3/SPI2_NPCS2/PWML0 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PB16/G0_MDC G0_MDC_PB16 MDC
|
|
|
|
|
|
PB17/G0_MDIO G0_MDIO_PB17 MDIO
|
|
|
|
|
|
PE1/A1/MCI0_DB0 G0_IRQ_PE1 nINTRP/NAND_TREE
|
2014-06-07 17:37:17 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-07-01 00:08:29 +02:00
|
|
|
|
PA2/LCDDAT2/G1_TXCK G1_TXCK_PA2 RXF_CLK/B-CAST_OFF
|
|
|
|
|
|
PA3/LCDDAT3/G1_RXCK (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA4/LCDDAT4/G1_TXEN G1_TXEN_PA4 TXEN
|
|
|
|
|
|
PA5/LCDDAT5/G1_TXER (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA6/LCDDAT6/G1_CRS (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA9/LCDDAT9/G1_COL (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA10/LCDDAT10/G1_RXDV G1_RXDV_PA10 CRS_DV/CONFIG2
|
|
|
|
|
|
PA11/LCDDAT11/G1_RXER G1_RXER_PA11 RXER/ISO
|
|
|
|
|
|
PA12/LCDDAT12/G1_RX0 G1_RX0_PA12 RXD0/DUPLEX
|
|
|
|
|
|
PA13/LCDDAT13/G1_RX1 G1_RX1_PA13 RXD1/PHYAD2
|
|
|
|
|
|
PA18/LCDDAT18/G1_RX2 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA19/LCDDAT19/G1_RX3 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA14/LCDDAT14/G1_TX0 G1_TX0_PA14 TXD0
|
|
|
|
|
|
PA15/LCDDAT15/G1_TX1 G1_TX1_PA15 TXD1
|
|
|
|
|
|
PA20/LCDDAT20/G1_TX2 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA21/LCDDAT21/G1_TX3 (RMII, not used) (RMII, not used)
|
|
|
|
|
|
PA22/LCDDAT22/G1_MDC G1_MDC_PA22 MDC
|
|
|
|
|
|
PA23/LCDDAT23/G1_MDIO G1_MDIO_PA23 MDIO
|
|
|
|
|
|
PE2/A2/MCI0_DB1 G1_IRQ_PE2 nINTRP/NAND_TREE
|
2014-06-07 17:37:17 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
|
|
|
|
|
|
EMAC2 connects (directly) to a KSZ8081RNB PHY (U10) and is available at
|
|
|
|
|
|
the ETH0 connector.
|
|
|
|
|
|
|
|
|
|
|
|
EMAC1 connects (indirectly) to another KSZ8081RNB PHY (U7) and is available
|
2014-07-06 17:43:26 +02:00
|
|
|
|
at the ETH1 connector.
|
2014-06-07 17:37:17 +02:00
|
|
|
|
|
2014-07-06 17:43:26 +02:00
|
|
|
|
The ETH1 signals go through line drivers that are enabled via the board
|
|
|
|
|
|
LCD_ETH1_CONFIG signal. Jumper JP2 selects either the EMAC1 or the LCD by
|
|
|
|
|
|
controlling the the LCD_ETH1_CONFIG signal on the board.
|
2014-06-07 17:37:17 +02:00
|
|
|
|
|
2014-07-06 17:43:26 +02:00
|
|
|
|
- JP2 open, LCD_ETH1_CONFIG pulled high:
|
|
|
|
|
|
|
|
|
|
|
|
LCD_ETH1_CONFIG=1: LCD 5v enable(LCD_DETECT#=0); ETH1 disable
|
|
|
|
|
|
|
|
|
|
|
|
- JP2 closed, LCD_ETH1_CONFIG grounded:
|
|
|
|
|
|
|
|
|
|
|
|
LCD_ETH1_CONFIG=0: LCD 5v disable; ETH1 enable
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Selecting the EMAC0 peripheral
|
|
|
|
|
|
-----------------------------
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_EMAC0=y : Enable the EMAC peripheral
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> EMAC device driver options
|
|
|
|
|
|
CONFIG_SAMA5_EMAC0_NRXBUFFERS=16 : Set aside some RS and TX buffers
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0_NTXBUFFERS=8
|
2014-06-07 17:37:17 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYADDR=1 : KSZ8081 PHY is at address 1
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0_AUTONEG=y : Use autonegotiation
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0_RMII=y : The RMII interfaces is used on the board
|
2014-06-07 17:37:17 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYSR=30 : Address of PHY status register on KSZ8081
|
|
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYSR_ALTCONFIG=y : Needed for KSZ8081
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYSR_ALTMODE=0x7 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYSR_10HD=0x1 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYSR_100HD=0x2 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYSR_10FD=0x5 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC0_PHYSR_100FD=0x6 : " " " " " "
|
|
|
|
|
|
|
|
|
|
|
|
PHY selection. Later in the configuration steps, you will need to select
|
2014-06-07 17:37:17 +02:00
|
|
|
|
the KSZ8081 PHY for EMAC (See below)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
Selecting the EMAC1 peripheral
|
2014-06-06 20:37:36 +02:00
|
|
|
|
-----------------------------
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral Support
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC1=y : Enable the EMAC peripheral
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
System Type -> EMAC device driver options
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC1_NRXBUFFERS=16 : Set aside some RS and TX buffers
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_NTXBUFFERS=8
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYADDR=1 : KSZ8081 PHY is at address 1
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_AUTONEG=y : Use autonegotiation
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_RMII=y : The RMII interfaces is used on the board
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYSR=30 : Address of PHY status register on KSZ8081
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYSR_ALTCONFIG=y : Needed for KSZ8081
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYSR_ALTMODE=0x7 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYSR_10HD=0x1 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYSR_100HD=0x2 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYSR_10FD=0x5 : " " " " " "
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1_PHYSR_100FD=0x6 : " " " " " "
|
2014-06-07 17:37:17 +02:00
|
|
|
|
|
|
|
|
|
|
PHY selection. Later in the configuration steps, you will need to select
|
|
|
|
|
|
the KSZ8081 PHY for EMAC (See below)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
If both EMAC0 and EMAC1 are selected, you will also need:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0_ISETH0=y : EMAC0 is "eth0"; EMAC1 is "eth1"
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
PHY selection. Later in the configuration steps, you will need to select
|
|
|
|
|
|
the KSZ9081 PHY for GMAC (See below)
|
|
|
|
|
|
|
|
|
|
|
|
Common configuration settings
|
|
|
|
|
|
-----------------------------
|
|
|
|
|
|
|
|
|
|
|
|
Networking Support
|
|
|
|
|
|
CONFIG_NET=y : Enable Neworking
|
|
|
|
|
|
CONFIG_NET_SOCKOPTS=y : Enable socket operations
|
2014-11-16 15:18:56 +01:00
|
|
|
|
CONFIG_NET_ETH_MTU=562 : Maximum packet size (MTU) 1518 is more standard
|
2014-11-16 17:49:33 +01:00
|
|
|
|
CONFIG_NET_ETH_TCP_RECVWNDO=562 : Should be the same as CONFIG_NET_ETH_MTU
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_NET_ARP=y : ARP support should be enabled
|
|
|
|
|
|
CONFIG_NET_ARP_IPIN=y : IP address harvesting (optional)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_NET_TCP=y : Enable TCP/IP networking
|
|
|
|
|
|
CONFIG_NET_TCPBACKLOG=y : Support TCP/IP backlog
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_NET_TCP_READAHEAD=y : Enable TCP read-ahead buffering
|
|
|
|
|
|
CONFIG_NET_TCP_WRITE_BUFFERS=y : Enable TCP write buffering
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_NET_UDP=y : Enable UDP networking
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_NET_BROADCAST=y : Support UDP broadcase packets
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_NET_ICMP=y : Enable ICMP networking
|
|
|
|
|
|
CONFIG_NET_ICMP_PING=y : Needed for NSH ping command
|
|
|
|
|
|
: Defaults should be okay for other options
|
|
|
|
|
|
Device drivers -> Network Device/PHY Support
|
|
|
|
|
|
CONFIG_NETDEVICES=y : Enabled PHY selection
|
2014-07-01 00:08:29 +02:00
|
|
|
|
CONFIG_ETH0_PHY_KSZ8081=y : Select the KSZ8081 PHY used with EMAC0 and 1
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Application Configuration -> Network Utilities
|
2015-07-10 20:09:58 +02:00
|
|
|
|
CONFIG_NETDB_DNSCLIENT=y : Enable host address resolution
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_NETUTILS_TELNETD=y : Enable the Telnet daemon
|
|
|
|
|
|
CONFIG_NETUTILS_TFTPC=y : Enable TFTP data file transfers for get and put commands
|
2014-07-03 00:04:25 +02:00
|
|
|
|
CONFIG_NETUTILS_NETLIB=y : Network library support is needed
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_NETUTILS_WEBCLIENT=y : Needed for wget support
|
|
|
|
|
|
: Defaults should be okay for other options
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
|
|
CONFIG_NSH_TELNET=y : Enable NSH session via Telnet
|
|
|
|
|
|
CONFIG_NSH_IPADDR=0x0a000002 : Select an IP address
|
|
|
|
|
|
CONFIG_NSH_DRIPADDR=0x0a000001 : IP address of gateway/host PC
|
|
|
|
|
|
CONFIG_NSH_NETMASK=0xffffff00 : Netmask
|
|
|
|
|
|
CONFIG_NSH_NOMAC=y : Need to make up a bogus MAC address
|
|
|
|
|
|
: Defaults should be okay for other options
|
|
|
|
|
|
|
|
|
|
|
|
Using the network with NSH
|
|
|
|
|
|
--------------------------
|
|
|
|
|
|
|
|
|
|
|
|
So what can you do with this networking support? First you see that
|
|
|
|
|
|
NSH has several new network related commands:
|
|
|
|
|
|
|
|
|
|
|
|
ifconfig, ifdown, ifup: Commands to help manage your network
|
|
|
|
|
|
get and put: TFTP file transfers
|
|
|
|
|
|
wget: HTML file transfers
|
|
|
|
|
|
ping: Check for access to peers on the network
|
|
|
|
|
|
Telnet console: You can access the NSH remotely via telnet.
|
|
|
|
|
|
|
|
|
|
|
|
You can also enable other add on features like full FTP or a Web
|
|
|
|
|
|
Server or XML RPC and others. There are also other features that
|
|
|
|
|
|
you can enable like DHCP client (or server) or network name
|
|
|
|
|
|
resolution.
|
|
|
|
|
|
|
|
|
|
|
|
By default, the IP address of the SAMA4D4-EK will be 10.0.0.2 and
|
|
|
|
|
|
it will assume that your host is the gateway and has the IP address
|
|
|
|
|
|
10.0.0.1.
|
|
|
|
|
|
|
|
|
|
|
|
nsh> ifconfig
|
|
|
|
|
|
eth0 HWaddr 00:e0:de:ad:be:ef at UP
|
|
|
|
|
|
IPaddr:10.0.0.2 DRaddr:10.0.0.1 Mask:255.255.255.0
|
|
|
|
|
|
|
|
|
|
|
|
You can use ping to test for connectivity to the host (Careful,
|
|
|
|
|
|
Window firewalls usually block ping-related ICMP traffic). On the
|
|
|
|
|
|
target side, you can:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> ping 10.0.0.1
|
|
|
|
|
|
PING 10.0.0.1 56 bytes of data
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=1 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=2 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=3 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=4 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=5 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=6 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=7 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=8 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=9 time=0 ms
|
|
|
|
|
|
56 bytes from 10.0.0.1: icmp_seq=10 time=0 ms
|
|
|
|
|
|
10 packets transmitted, 10 received, 0% packet loss, time 10100 ms
|
|
|
|
|
|
|
|
|
|
|
|
NOTE: In this configuration is is normal to have packet loss > 0%
|
|
|
|
|
|
the first time you ping due to the default handling of the ARP
|
|
|
|
|
|
table.
|
|
|
|
|
|
|
|
|
|
|
|
On the host side, you should also be able to ping the SAMA4D4-EK:
|
|
|
|
|
|
|
|
|
|
|
|
$ ping 10.0.0.2
|
|
|
|
|
|
|
|
|
|
|
|
You can also log into the NSH from the host PC like this:
|
|
|
|
|
|
|
|
|
|
|
|
$ telnet 10.0.0.2
|
|
|
|
|
|
Trying 10.0.0.2...
|
|
|
|
|
|
Connected to 10.0.0.2.
|
|
|
|
|
|
Escape character is '^]'.
|
|
|
|
|
|
sh_telnetmain: Session [3] Started
|
|
|
|
|
|
|
|
|
|
|
|
NuttShell (NSH) NuttX-6.31
|
|
|
|
|
|
nsh> help
|
|
|
|
|
|
help usage: help [-v] [<cmd>]
|
|
|
|
|
|
|
|
|
|
|
|
[ echo ifconfig mkdir mw sleep
|
|
|
|
|
|
? exec ifdown mkfatfs ping test
|
|
|
|
|
|
cat exit ifup mkfifo ps umount
|
|
|
|
|
|
cp free kill mkrd put usleep
|
|
|
|
|
|
cmp get losetup mh rm wget
|
|
|
|
|
|
dd help ls mount rmdir xd
|
|
|
|
|
|
df hexdump mb mv sh
|
|
|
|
|
|
|
|
|
|
|
|
Builtin Apps:
|
|
|
|
|
|
nsh>
|
|
|
|
|
|
|
|
|
|
|
|
NOTE: If you enable this feature, you experience a delay on booting.
|
|
|
|
|
|
That is because the start-up logic waits for the network connection
|
|
|
|
|
|
to be established before starting NuttX. In a real application, you
|
|
|
|
|
|
would probably want to do the network bringup on a separate thread
|
|
|
|
|
|
so that access to the NSH prompt is not delayed.
|
|
|
|
|
|
|
|
|
|
|
|
This delay will be especially long if the board is not connected to
|
2014-07-14 02:22:34 +02:00
|
|
|
|
a network. On the order of a minute! You will probably think that
|
2014-08-18 15:24:47 +02:00
|
|
|
|
NuttX has crashed! And then, when it finally does come up, the
|
|
|
|
|
|
network will not be available.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-08-18 15:24:47 +02:00
|
|
|
|
Network Initialization Thread
|
|
|
|
|
|
-----------------------------
|
2014-08-06 20:30:35 +02:00
|
|
|
|
There is a configuration option enabled by CONFIG_NSH_NETINIT_THREAD
|
|
|
|
|
|
that will do the NSH network bring-up asynchronously in parallel on
|
|
|
|
|
|
a separate thread. This eliminates the (visible) networking delay
|
2014-08-18 15:24:47 +02:00
|
|
|
|
altogether. This networking initialization feature by itself has
|
|
|
|
|
|
some limitations:
|
2014-08-06 20:30:35 +02:00
|
|
|
|
|
|
|
|
|
|
- If no network is connected, the network bring-up will fail and
|
|
|
|
|
|
the network initialization thread will simply exit. There are no
|
|
|
|
|
|
retries and no mechanism to know if the network initialization was
|
2014-08-18 15:24:47 +02:00
|
|
|
|
successful.
|
|
|
|
|
|
|
|
|
|
|
|
- Furthermore, there is no support for detecting loss of the network
|
|
|
|
|
|
connection and recovery of networking when the connection is restored.
|
2014-08-06 20:30:35 +02:00
|
|
|
|
|
2014-08-18 15:24:47 +02:00
|
|
|
|
Both of these shortcomings can be eliminated by enabling the network
|
|
|
|
|
|
monitor:
|
|
|
|
|
|
|
|
|
|
|
|
Network Monitor
|
|
|
|
|
|
---------------
|
|
|
|
|
|
By default the network initialization thread will bring-up the network
|
|
|
|
|
|
then exit, freeing all of the resources that it required. This is a
|
|
|
|
|
|
good behavior for systems with limited memory.
|
|
|
|
|
|
|
|
|
|
|
|
If the CONFIG_NSH_NETINIT_MONITOR option is selected, however, then the
|
|
|
|
|
|
network initialization thread will persist forever; it will monitor the
|
|
|
|
|
|
network status. In the event that the network goes down (for example, if
|
|
|
|
|
|
a cable is removed), then the thread will monitor the link status and
|
|
|
|
|
|
attempt to bring the network back up. In this case the resources
|
|
|
|
|
|
required for network initialization are never released.
|
|
|
|
|
|
|
|
|
|
|
|
Pre-requisites:
|
|
|
|
|
|
|
|
|
|
|
|
- CONFIG_NSH_NETINIT_THREAD as described above.
|
|
|
|
|
|
|
|
|
|
|
|
- CONFIG_NETDEV_PHY_IOCTL. Enable PHY IOCTL commands in the Ethernet
|
|
|
|
|
|
device driver. Special IOCTL commands must be provided by the Ethernet
|
|
|
|
|
|
driver to support certain PHY operations that will be needed for link
|
|
|
|
|
|
management. There operations are not complex and are implemented for
|
|
|
|
|
|
the Atmel SAMA5 family.
|
|
|
|
|
|
|
|
|
|
|
|
- CONFIG_ARCH_PHY_INTERRUPT. This is not a user selectable option.
|
|
|
|
|
|
Rather, it is set when you select a board that supports PHY interrupts.
|
|
|
|
|
|
In most architectures, the PHY interrupt is not associated with the
|
|
|
|
|
|
Ethernet driver at all. Rather, the PHY interrupt is provided via some
|
|
|
|
|
|
board-specific GPIO and the board-specific logic must provide support
|
|
|
|
|
|
for that GPIO interrupt. To do this, the board logic must do two things:
|
|
|
|
|
|
(1) It must provide the function arch_phy_irq() as described and
|
|
|
|
|
|
prototyped in the nuttx/include/nuttx/arch.h, and (2) it must select
|
|
|
|
|
|
CONFIG_ARCH_PHY_INTERRUPT in the board configuration file to advertise
|
|
|
|
|
|
that it supports arch_phy_irq(). This logic can be found at
|
|
|
|
|
|
nuttx/configs/sama5d4-ek/src/sam_ethernet.c.
|
|
|
|
|
|
|
|
|
|
|
|
- And a few other things: UDP support is required (CONFIG_NET_UDP) and
|
|
|
|
|
|
signals must not be disabled (CONFIG_DISABLE_SIGNALS).
|
|
|
|
|
|
|
2015-01-05 22:12:45 +01:00
|
|
|
|
Given those prerequisites, the network monitor can be selected with these
|
|
|
|
|
|
additional settings.
|
2014-08-18 15:24:47 +02:00
|
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|
|
Networking Support -> Networking Device Support
|
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|
|
|
CONFIG_NETDEV_PHY_IOCTL=y : Enable PHY ioctl support
|
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|
|
Application Configuration -> NSH Library -> Networking Configuration
|
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|
|
CONFIG_NSH_NETINIT_THREAD : Enable the network initialization thread
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|
|
CONFIG_NSH_NETINIT_MONITOR=y : Enable the network monitor
|
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|
|
CONFIG_NSH_NETINIT_RETRYMSEC=2000 : Configure the network monitor as you like
|
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|
|
CONFIG_NSH_NETINIT_SIGNO=18
|
2014-08-06 20:30:35 +02:00
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|
2014-06-06 20:37:36 +02:00
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|
AT25 Serial FLASH
|
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|
|
|
|
=================
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Connections
|
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|
|
|
|
-----------
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The SAMA4D4-EK board supports an options Serial DataFlash connected
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|
|
at MN8. The SPI connection is as follows:
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|
2014-06-07 17:37:17 +02:00
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|
|
|
------------------------------ ------------------- -------------------------
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|
|
SAMA5D4 PIO SIGNAL USAGE
|
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|
|
------------------------------ ------------------- -------------------------
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PC0/SPI0_MISO/PWMH2/ISI_D8 PC0 AT25_SPI0_SO, ISI_D8
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PC1/SPI0_MOSI/PWML2/ISI_D9 PC1 AT25_SPI0_SI, ISI_D9
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|
PC2/SPI0_SPCK/PWMH3/ISI_D10 PC2 AT25_SPI0_SPCK, ISI_D10,
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|
ZIG_PWMH3_PC2
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PC3/SPI0_NPCS0/PWML3/ISI_D11 PC3 AT25_SPI0_NCPS0, ISI_D11,
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|
ZIG_PWML3_PC3 (See JP6)
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|
|
------------------------------ ------------------- -------------------------
|
2014-06-06 20:37:36 +02:00
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|
Configuration
|
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|
|
-------------
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|
System Type -> SAMA5 Peripheral Support
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CONFIG_SAMA5_SPI0=y : Enable SPI0
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CONFIG_SAMA5_DMAC0=y : Enable DMA controller 0
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|
System Type -> SPI device driver options
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CONFIG_SAMA5_SPI_DMA=y : Use DMA for SPI transfers
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CONFIG_SAMA5_SPI_DMATHRESHOLD=4 : Don't DMA for small transfers
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|
Device Drivers -> SPI Driver Support
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CONFIG_SPI=y : Enable SPI support
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CONFIG_SPI_EXCHANGE=y : Support the exchange method
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Device Drivers -> Memory Technology Device (MTD) Support
|
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|
|
CONFIG_MTD=y : Enable MTD support
|
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|
CONFIG_MTD_AT25=y : Enable the AT25 driver
|
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|
CONFIG_AT25_SPIMODE=0 : Use SPI mode 0
|
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|
|
CONFIG_AT25_SPIFREQUENCY=10000000 : Use SPI frequency 10MHz
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The AT25 is capable of higher SPI rates than this. I have not experimented
|
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|
|
a lot, but at 20MHz, the behavior is not the same with all CM modules. This
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|
lower rate gives more predictable performance.
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|
|
Application Configuration -> NSH Library
|
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|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization
|
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|
|
Board Selection
|
2014-07-29 23:34:31 +02:00
|
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|
|
CONFIG_SAMA5D4EK_AT25_BLOCKMOUNT=y : Mounts AT25 for NSH
|
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|
|
CONFIG_SAMA5D4EK_AT25_FTL=y : Create block driver for FAT
|
2014-06-06 20:37:36 +02:00
|
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|
|
NOTE: that you must close JP6 in order to enable the AT25 FLASH chip select.
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|
|
You can then format the AT25 FLASH for a FAT file system and mount the
|
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|
|
file system at /mnt/at25 using these NSH commands:
|
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|
|
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|
|
nsh> mkfatfs /dev/mtdblock0
|
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|
|
|
nsh> mount -t vfat /dev/mtdblock0 /mnt/at25
|
|
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|
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|
|
Then you an use the FLASH as a normal FAT file system:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> echo "This is a test" >/mnt/at25/atest.txt
|
|
|
|
|
|
nsh> ls -l /mnt/at25
|
|
|
|
|
|
/mnt/at25:
|
|
|
|
|
|
-rw-rw-rw- 16 atest.txt
|
|
|
|
|
|
nsh> cat /mnt/at25/atest.txt
|
|
|
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|
|
This is a test
|
|
|
|
|
|
|
|
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|
|
|
HSMCI Card Slots
|
|
|
|
|
|
================
|
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|
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|
|
Physical Slots
|
|
|
|
|
|
--------------
|
|
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|
|
The SAMA4D4-EK provides a two SD memory card slots: (1) a full size SD
|
|
|
|
|
|
card slot (J10), and (2) a microSD memory card slot (J11).
|
|
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|
|
|
2014-06-11 22:45:01 +02:00
|
|
|
|
HSMCI0
|
|
|
|
|
|
------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
The full size SD card slot connects via HSMCI0. The card detect discrete
|
2014-06-11 22:45:01 +02:00
|
|
|
|
is available on PE5 (pulled high). The write protect discrete is tied to
|
|
|
|
|
|
ground and is not available to software. The slot supports 8-bit wide
|
2014-06-06 20:37:36 +02:00
|
|
|
|
transfer mode, but the NuttX driver currently uses only the 4-bit wide
|
|
|
|
|
|
transfer mode
|
|
|
|
|
|
|
2014-06-11 22:45:01 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
SAMA5D4 PIO SIGNAL USAGE
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
PC4/SPI0_NPCS1/MCI0_CK/PCK1 PC4 MCI0_CK, ISI_MCK, EXP
|
|
|
|
|
|
PC5/D0/MCI0_CDA PC5 MCI0_CDA, NAND_IO0
|
|
|
|
|
|
PC6/D1/MCI0_DA0 PC6 MCI0_DA0, NAND_IO1
|
|
|
|
|
|
PC7/D2/MCI0_DA1 PC7 MCI0_DA1, NAND_IO2
|
|
|
|
|
|
PC8/D3/MCI0_DA2 PC8 MCI0_DA2, NAND_IO3
|
|
|
|
|
|
PC9/D4/MCI0_DA3 PC9 MCI0_DA3, NAND_IO4
|
|
|
|
|
|
PC10/D5/MCI0_DA4 PC10 MCI0_DA4, NAND_IO5
|
|
|
|
|
|
PC11/D6/MCI0_DA5 PC11 MCI0_DA5, NAND_IO6
|
|
|
|
|
|
PC12/D7/MCI0_DA6 PC12 MCI0_DA6, NAND_IO7
|
|
|
|
|
|
PC13/NRD/NANDOE/MCI0_DA7 PC13 MCI0_DA7, NAND_RE
|
|
|
|
|
|
PE5/A5/CTS3 MCI0_CD_PE5 MCI0_CD
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-11 22:45:01 +02:00
|
|
|
|
HSMCI1
|
|
|
|
|
|
------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
The microSD connects vi HSMCI1. The card detect discrete is available on
|
2014-06-29 19:26:41 +02:00
|
|
|
|
PE6 (pulled high). NOTE that PE15 must be controlled to provide power
|
2014-06-11 22:57:14 +02:00
|
|
|
|
to the HSMCI1 slot (the HSMCI0 slot is always powered).
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-11 22:45:01 +02:00
|
|
|
|
------------------------------ ------------------- -------------------------
|
|
|
|
|
|
SAMA5D4 PIO SIGNAL USAGE
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-09-17 19:47:00 +02:00
|
|
|
|
PE14/A14/TCLK1/PWMH3 MCI1_CD_PE14 MCI1_CD Rev C. ???
|
2014-06-11 22:45:01 +02:00
|
|
|
|
PE15/A15/SCK3/TIOA0 MCI1_PWR_PE15 MCI1_PWR
|
|
|
|
|
|
PE18/A18/TIOA5/MCI1_CK PE18 MCI1_CK, EXP
|
|
|
|
|
|
PE19/A19/TIOB5/MCI1_CDA PE19 MCI1_CDA, EXP
|
|
|
|
|
|
PE20/A20/TCLK5/MCI1_DA0 PE20 MCI1_DA0, EXP
|
|
|
|
|
|
PE21/A23/TIOA4/MCI1_DA1 PE21 MCI1_DA1, EXP
|
|
|
|
|
|
PE22/A24/TIOB4/MCI1_DA2 PE22 MCI1_DA2, EXP
|
|
|
|
|
|
PE23/A25/TCLK4/MCI1_DA3 PE23 MCI1_DA3, EXP
|
|
|
|
|
|
PE6/A6/TIOA3 MCI1_CD_PE6 MCI1_CD
|
|
|
|
|
|
------------------------------ ------------------- -------------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Configuration Settings
|
|
|
|
|
|
----------------------
|
|
|
|
|
|
|
|
|
|
|
|
Enabling HSMCI support. The SAMA4D4-EK provides a two SD memory card
|
|
|
|
|
|
slots: (1) a full size SD card slot (J10), and (2) a microSD memory card
|
|
|
|
|
|
slot (J11). The full size SD card slot connects via HSMCI0; the microSD
|
|
|
|
|
|
connects via HSMCI1. Support for both SD slots can be enabled with the
|
|
|
|
|
|
following settings:
|
|
|
|
|
|
|
|
|
|
|
|
System Type->ATSAMA5 Peripheral Support
|
2014-07-22 02:38:41 +02:00
|
|
|
|
CONFIG_SAMA5_HSMCI0=y : To enable HSMCI0 support
|
|
|
|
|
|
CONFIG_SAMA5_HSMCI1=y : To enable HSMCI1 support
|
|
|
|
|
|
CONFIG_SAMA5_XDMAC0=y : XDMAC0 is needed by HSMCI0/1
|
|
|
|
|
|
: (HSMCI0 seemds to be secure by default)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
System Type
|
|
|
|
|
|
CONFIG_SAMA5_PIO_IRQ=y : PIO interrupts needed
|
2014-06-29 19:26:41 +02:00
|
|
|
|
CONFIG_SAMA5_PIOE_IRQ=y : Card detect pins are on PE5 and PE6
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Device Drivers -> MMC/SD Driver Support
|
|
|
|
|
|
CONFIG_MMCSD=y : Enable MMC/SD support
|
|
|
|
|
|
CONFIG_MMSCD_NSLOTS=1 : One slot per driver instance
|
2014-07-23 15:58:10 +02:00
|
|
|
|
CONFIG_MMCSD_MULTIBLOCK_DISABLE=y : (REVISIT)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_MMCSD_HAVECARDDETECT=y : Supports card-detect PIOs
|
|
|
|
|
|
CONFIG_MMCSD_MMCSUPPORT=n : Interferes with some SD cards
|
|
|
|
|
|
CONFIG_MMCSD_SPI=n : No SPI-based MMC/SD support
|
|
|
|
|
|
CONFIG_MMCSD_SDIO=y : SDIO-based MMC/SD support
|
|
|
|
|
|
CONFIG_SDIO_DMA=y : Use SDIO DMA
|
|
|
|
|
|
CONFIG_SDIO_BLOCKSETUP=y : Needs to know block sizes
|
|
|
|
|
|
|
|
|
|
|
|
Library Routines
|
|
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y : Driver needs work queue support
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
2014-09-03 16:34:28 +02:00
|
|
|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization, OR
|
|
|
|
|
|
CONFIG_BOARD_INITIALIZE=y
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Using the SD card
|
|
|
|
|
|
-----------------
|
|
|
|
|
|
|
|
|
|
|
|
1) After booting, the HSCMI devices will appear as /dev/mmcsd0
|
|
|
|
|
|
and /dev/mmcsd1.
|
|
|
|
|
|
|
|
|
|
|
|
2) If you try mounting an SD card with nothing in the slot, the
|
|
|
|
|
|
mount will fail:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1
|
|
|
|
|
|
nsh: mount: mount failed: 19
|
|
|
|
|
|
|
|
|
|
|
|
NSH can be configured to provide errors as strings instead of
|
|
|
|
|
|
numbers. But in this case, only the error number is reported. The
|
|
|
|
|
|
error numbers can be found in nuttx/include/errno.h:
|
|
|
|
|
|
|
|
|
|
|
|
#define ENODEV 19
|
|
|
|
|
|
#define ENODEV_STR "No such device"
|
|
|
|
|
|
|
|
|
|
|
|
So the mount command is saying that there is no device or, more
|
|
|
|
|
|
correctly, that there is no card in the SD card slot.
|
|
|
|
|
|
|
|
|
|
|
|
3) Inserted the SD card. Then the mount should succeed.
|
|
|
|
|
|
|
|
|
|
|
|
nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1
|
|
|
|
|
|
nsh> ls /mnt/sd1
|
|
|
|
|
|
/mnt/sd1:
|
|
|
|
|
|
atest.txt
|
|
|
|
|
|
nsh> cat /mnt/sd1/atest.txt
|
|
|
|
|
|
This is a test
|
|
|
|
|
|
|
2014-07-30 00:35:47 +02:00
|
|
|
|
NOTE: See the next section entitled "Auto-Mounter" for another way
|
|
|
|
|
|
to mount your SD card.
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
4) Before removing the card, you must umount the file system. This is
|
|
|
|
|
|
equivalent to "ejecting" or "safely removing" the card on Windows: It
|
2014-07-01 00:08:29 +02:00
|
|
|
|
flushes any cached data to an SD card and makes the SD card unavailable
|
2014-06-06 20:37:36 +02:00
|
|
|
|
to the applications.
|
|
|
|
|
|
|
|
|
|
|
|
nsh> umount -t /mnt/sd1
|
|
|
|
|
|
|
|
|
|
|
|
It is now safe to remove the card. NuttX provides into callbacks
|
|
|
|
|
|
that can be used by an application to automatically unmount the
|
|
|
|
|
|
volume when it is removed. But those callbacks are not used in
|
|
|
|
|
|
these configurations.
|
|
|
|
|
|
|
2014-07-30 00:35:47 +02:00
|
|
|
|
Auto-Mounter
|
|
|
|
|
|
============
|
|
|
|
|
|
|
2014-07-30 18:19:09 +02:00
|
|
|
|
NuttX implements an auto-mounter than can make working with SD cards
|
|
|
|
|
|
easier. With the auto-mounter, the file system will be automatically
|
|
|
|
|
|
mounted when the SD card is inserted into the HSMCI slot and automatically
|
|
|
|
|
|
unmounted when the SD card is removed.
|
2014-07-30 00:35:47 +02:00
|
|
|
|
|
|
|
|
|
|
Here is a sample configuration for the auto-mounter:
|
|
|
|
|
|
|
|
|
|
|
|
File System Configuration
|
|
|
|
|
|
CONFIG_FS_AUTOMOUNTER=y
|
|
|
|
|
|
|
|
|
|
|
|
Board-Specific Options
|
|
|
|
|
|
CONFIG_SAMA5D4EK_HSMCI0_AUTOMOUNT=y
|
|
|
|
|
|
CONFIG_SAMA5D4EK_HSMCI0_AUTOMOUNT_FSTYPE="vfat"
|
|
|
|
|
|
CONFIG_SAMA5D4EK_HSMCI0_AUTOMOUNT_BLKDEV="/dev/mmcsd0"
|
|
|
|
|
|
CONFIG_SAMA5D4EK_HSMCI0_AUTOMOUNT_MOUNTPOINT="/mnt/sdcard"
|
|
|
|
|
|
CONFIG_SAMA5D4EK_HSMCI0_AUTOMOUNT_DDELAY=1000
|
|
|
|
|
|
CONFIG_SAMA5D4EK_HSMCI0_AUTOMOUNT_UDELAY=2000
|
|
|
|
|
|
|
2014-07-30 18:19:09 +02:00
|
|
|
|
WARNING: SD cards should never be removed without first unmounting
|
|
|
|
|
|
them. This is to avoid data and possible corruption of the file
|
|
|
|
|
|
system. Certainly this is the case if you are writing to the SD card
|
|
|
|
|
|
at the time of the removal. If you use the SD card for read-only access,
|
|
|
|
|
|
however, then I cannot think of any reason why removing the card without
|
|
|
|
|
|
mounting would be harmful.
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
USB Ports
|
|
|
|
|
|
=========
|
|
|
|
|
|
|
|
|
|
|
|
The SAMA4D4-EK features three USB communication ports:
|
|
|
|
|
|
|
|
|
|
|
|
* Port A Host High Speed (EHCI) and Full Speed (OHCI) multiplexed with
|
2014-06-07 17:37:17 +02:00
|
|
|
|
USB Device High Speed Micro AB connector, J1
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
* Port B Host High Speed (EHCI) and Full Speed (OHCI) standard type A
|
2014-06-07 17:37:17 +02:00
|
|
|
|
connector, J5 upper port
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
* Port C Host Full Speed (OHCI) and Full Speed (OHCI) standard type A
|
|
|
|
|
|
connector, J5 lower port
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
The three USB host ports are equipped with 500-mA high-side power
|
2014-06-06 20:37:36 +02:00
|
|
|
|
switch for self-powered and bus-powered applications.
|
|
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
The USB device port A (J5) features a VBUS insert detection function.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Port A
|
|
|
|
|
|
------
|
|
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
PIO Signal Name Function
|
|
|
|
|
|
---- -------------- -------------------------------------------------------
|
2014-07-03 19:22:15 +02:00
|
|
|
|
PE10 USBA_EN5V_PE10 VBus power enable (via MN2 power switch) to VBus pin of
|
2014-06-07 17:37:17 +02:00
|
|
|
|
the OTG connector (host)
|
|
|
|
|
|
PE31 USBA_VBUS_PE31 VBus sensing from the VBus pin of the OTG connector (device)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Port B
|
|
|
|
|
|
------
|
|
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
PIO Signal Name Function
|
|
|
|
|
|
---- -------------- -------------------------------------------------------
|
2014-07-03 19:22:15 +02:00
|
|
|
|
PE11 USBB_EN5V_PE11 VBus power enable (via MN4 power switch). To the A1
|
2014-06-07 17:37:17 +02:00
|
|
|
|
pin of J5 Dual USB A connector
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Port C
|
|
|
|
|
|
------
|
|
|
|
|
|
|
2014-06-07 17:37:17 +02:00
|
|
|
|
PIO Signal Name Function
|
|
|
|
|
|
---- -------------- -------------------------------------------------------
|
2014-07-03 19:22:15 +02:00
|
|
|
|
PE12 USB_OVCUR_PD9 VBus power enable (via MN4 power switch). To the B1
|
2014-06-07 17:37:17 +02:00
|
|
|
|
pin of J5 Dual USB A connector
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Both Ports B and C
|
|
|
|
|
|
------------------
|
|
|
|
|
|
|
2014-07-03 19:22:15 +02:00
|
|
|
|
PIO Signal Name Function
|
|
|
|
|
|
---- ------------- -------------------------------------------------------
|
|
|
|
|
|
PD9 USB_OVCUR_PD9 Combined over-current indication from port A and B
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
USB High-Speed Device
|
|
|
|
|
|
=====================
|
|
|
|
|
|
|
|
|
|
|
|
Basic USB High-Speed Device Configuration
|
|
|
|
|
|
-----------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
Support the USB high-speed device (UDPHS) driver can be enabled with these
|
|
|
|
|
|
NuttX configuration settings.
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> USB Device Driver Support
|
|
|
|
|
|
CONFIG_USBDEV=y : Enable USB device support
|
|
|
|
|
|
CONFIG_USBDEV_DUALSPEED=y : Device support High and Full Speed
|
|
|
|
|
|
CONFIG_USBDEV_DMA=y : Device uses DMA
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> ATSAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_UDPHS=y : Enable UDPHS High Speed USB device
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization
|
|
|
|
|
|
|
|
|
|
|
|
Mass Storage Class
|
|
|
|
|
|
------------------
|
|
|
|
|
|
|
|
|
|
|
|
The Mass Storage Class (MSC) class driver is selected for use with
|
|
|
|
|
|
UDPHS:
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> USB Device Driver Support
|
|
|
|
|
|
CONFIG_USBMSC=y : Enable the USB MSC class driver
|
|
|
|
|
|
CONFIG_USBMSC_EPBULKOUT=1 : Use EP1 for the BULK OUT endpoint
|
|
|
|
|
|
CONFIG_USBMSC_EPBULKIN=2 : Use EP2 for the BULK IN endpoint
|
|
|
|
|
|
|
|
|
|
|
|
The following setting enables an add-on that can can be used to control
|
|
|
|
|
|
the USB MSC device. It will add two new NSH commands:
|
|
|
|
|
|
|
|
|
|
|
|
a. msconn will connect the USB serial device and export the AT25
|
|
|
|
|
|
to the host, and
|
|
|
|
|
|
b. msdis which will disconnect the USB serial device.
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> System Add-Ons:
|
|
|
|
|
|
CONFIG_SYSTEM_USBMSC=y : Enable the USBMSC add-on
|
|
|
|
|
|
CONFIG_SYSTEM_USBMSC_NLUNS=1 : One LUN
|
|
|
|
|
|
CONFIG_SYSTEM_USBMSC_DEVMINOR1=0 : Minor device zero
|
|
|
|
|
|
CONFIG_SYSTEM_USBMSC_DEVPATH1="/dev/mtdblock0"
|
|
|
|
|
|
: Use a single, LUN: The AT25
|
|
|
|
|
|
: block driver.
|
|
|
|
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
|
|
|
|
|
|
|
a. To prevent file system corruption, make sure that the AT25 is un-
|
|
|
|
|
|
mounted *before* exporting the mass storage device to the host:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> umount /mnt/at25
|
|
|
|
|
|
nsh> mscon
|
|
|
|
|
|
|
|
|
|
|
|
The AT25 can be re-mounted after the mass storage class is disconnected:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> msdis
|
|
|
|
|
|
nsh> mount -t vfat /dev/mtdblock0 /mnt/at25
|
|
|
|
|
|
|
|
|
|
|
|
b. If you change the value CONFIG_SYSTEM_USBMSC_DEVPATH1, then you
|
|
|
|
|
|
can export other file systems:
|
|
|
|
|
|
|
|
|
|
|
|
"/dev/mmcsd1" will export the HSMCI1 microSD
|
|
|
|
|
|
"/dev/mmcsd0" will export the HSMCI0 full-size SD slot
|
|
|
|
|
|
"/dev/ram0" could even be used to export a RAM disk. But you would
|
|
|
|
|
|
first have to use mkrd to create the RAM disk and mkfatfs to put
|
|
|
|
|
|
a FAT file system on it.
|
|
|
|
|
|
|
|
|
|
|
|
CDC/ACM Serial Device Class
|
|
|
|
|
|
---------------------------
|
|
|
|
|
|
|
|
|
|
|
|
This will select the CDC/ACM serial device. Defaults for the other
|
|
|
|
|
|
options should be okay.
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> USB Device Driver Support
|
|
|
|
|
|
CONFIG_CDCACM=y : Enable the CDC/ACM device
|
|
|
|
|
|
CONFIG_CDCACM_BULKIN_REQLEN=768 : Default too small for high-speed
|
|
|
|
|
|
|
|
|
|
|
|
The following setting enables an example that can can be used to control
|
|
|
|
|
|
the CDC/ACM device. It will add two new NSH commands:
|
|
|
|
|
|
|
|
|
|
|
|
a. sercon will connect the USB serial device (creating /dev/ttyACM0), and
|
|
|
|
|
|
b. serdis which will disconnect the USB serial device (destroying
|
|
|
|
|
|
/dev/ttyACM0).
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> Examples:
|
|
|
|
|
|
CONFIG_SYSTEM_CDCACM=y : Enable an CDC/ACM example
|
|
|
|
|
|
|
|
|
|
|
|
Debugging USB Device
|
|
|
|
|
|
--------------------
|
|
|
|
|
|
|
|
|
|
|
|
There is normal console debug output available that can be enabled with
|
|
|
|
|
|
CONFIG_DEBUG + CONFIG_DEBUG_USB. However, USB device operation is very
|
|
|
|
|
|
time critical and enabling this debug output WILL interfere with the
|
|
|
|
|
|
operation of the UDPHS. USB device tracing is a less invasive way to get
|
|
|
|
|
|
debug information: If tracing is enabled, the USB device will save
|
|
|
|
|
|
encoded trace output in in-memory buffer; if the USB monitor is also
|
|
|
|
|
|
enabled, that trace buffer will be periodically emptied and dumped to the
|
|
|
|
|
|
system logging device (the serial console in this configuration):
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> "USB Device Driver Support:
|
|
|
|
|
|
CONFIG_USBDEV_TRACE=y : Enable USB trace feature
|
|
|
|
|
|
CONFIG_USBDEV_TRACE_NRECORDS=256 : Buffer 256 records in memory
|
|
|
|
|
|
CONFIG_USBDEV_TRACE_STRINGS=y : (optional)
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> NSH LIbrary:
|
|
|
|
|
|
CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH
|
|
|
|
|
|
CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> System NSH Add-Ons:
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_TRACEINIT=y : Enable TRACE output
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_TRACECLASS=y
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_TRACETRANSFERS=y
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_TRACECONTROLLER=y
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_TRACEINTERRUPTS=y
|
|
|
|
|
|
|
|
|
|
|
|
NOTE: If USB debug output is also enabled, both outputs will appear on the
|
|
|
|
|
|
serial console. However, the debug output will be asynchronous with the
|
|
|
|
|
|
trace output and, hence, difficult to interpret.
|
|
|
|
|
|
|
|
|
|
|
|
USB High-Speed Host
|
|
|
|
|
|
===================
|
|
|
|
|
|
|
|
|
|
|
|
OHCI Only
|
|
|
|
|
|
---------
|
|
|
|
|
|
|
|
|
|
|
|
Support the USB low/full-speed OHCI host driver can be enabled by changing
|
|
|
|
|
|
the NuttX configuration file as follows:
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> ATSAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_UHPHS=y : USB Host High Speed
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> USB High Speed Host driver options
|
|
|
|
|
|
CONFIG_SAMA5_OHCI=y : Low/full-speed OHCI support
|
|
|
|
|
|
: Defaults for values probably OK
|
|
|
|
|
|
Device Drivers
|
|
|
|
|
|
CONFIG_USBHOST=y : Enable USB host support
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> USB Host Driver Support
|
|
|
|
|
|
CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not used
|
|
|
|
|
|
CONFIG_USBHOST_MSC=y : Enable the mass storage class driver
|
|
|
|
|
|
CONFIG_USBHOST_HIDKBD=y : Enable the HID keyboard class driver
|
|
|
|
|
|
|
2015-05-01 18:12:41 +02:00
|
|
|
|
RTOS Features -> Work Queue Support
|
|
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y : High priority worker thread support is required
|
|
|
|
|
|
CONFIG_SCHED_HPWORK=y :
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization
|
|
|
|
|
|
|
|
|
|
|
|
EHCI
|
|
|
|
|
|
----
|
|
|
|
|
|
|
|
|
|
|
|
Support the USB high-speed EHCI host driver can be enabled by changing the
|
|
|
|
|
|
NuttX configuration file as follows. If EHCI is enabled by itself, then
|
|
|
|
|
|
only high-speed devices can be supported. If OHCI is also enabled, then
|
|
|
|
|
|
all low-, full-, and high speed devices will work.
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> ATSAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_UHPHS=y : USB Host High Speed
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> USB High Speed Host driver options
|
|
|
|
|
|
CONFIG_SAMA5_EHCI=y : High-speed EHCI support
|
|
|
|
|
|
CONFIG_SAMA5_OHCI=y : Low/full-speed OHCI support
|
2014-07-03 19:22:15 +02:00
|
|
|
|
: Defaults for values probably OK for both
|
|
|
|
|
|
CONFIG_SAMA5_UHPHS_RHPORT1=n : (Reserved for use by USB device)
|
|
|
|
|
|
CONFIG_SAMA5_UHPHS_RHPORT2=y : Enable port B
|
|
|
|
|
|
CONFIG_SAMA5_UHPHS_RHPORT3=y : Enable port C
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
Device Drivers
|
|
|
|
|
|
CONFIG_USBHOST=y : Enable USB host support
|
|
|
|
|
|
CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not needed
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> USB Host Driver Support
|
|
|
|
|
|
CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not used
|
|
|
|
|
|
CONFIG_USBHOST_MSC=y : Enable the mass storage class driver
|
|
|
|
|
|
CONFIG_USBHOST_HIDKBD=y : Enable the HID keyboard class driver
|
|
|
|
|
|
|
2015-05-01 18:12:41 +02:00
|
|
|
|
RTOS Features -> Work Queue Support
|
|
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y : High priority worker thread support is required
|
|
|
|
|
|
CONFIG_SCHED_HPWORK=y :
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization
|
|
|
|
|
|
|
2015-05-01 18:12:41 +02:00
|
|
|
|
USB Hub Support
|
|
|
|
|
|
----------------
|
|
|
|
|
|
|
|
|
|
|
|
USB hub support can be included by adding the following changes to the configuration (in addition to those listed above):
|
|
|
|
|
|
|
|
|
|
|
|
Drivers -> USB Host Driver Support
|
|
|
|
|
|
CONFIG_USBHOST_HUB=y : Enable the hub class
|
|
|
|
|
|
CONFIG_USBHOST_ASYNCH=y : Asynchonous I/O supported needed for hubs
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> USB High Speed Host driver options
|
2015-05-02 22:00:12 +02:00
|
|
|
|
CONFIG_SAMA5_OHCI_NEDS=12 : You will probably want more OHCI pipes
|
|
|
|
|
|
CONFIG_SAMA5_OHCI_NTDS=18 : You will probably want more OHCI pipes
|
2015-05-01 18:12:41 +02:00
|
|
|
|
CONFIG_SAMA5_OHCI_TDBUFFERS=12
|
|
|
|
|
|
CONFIG_SAMA5_OHCI_TDBUFSIZE=128
|
|
|
|
|
|
|
2015-05-02 22:00:12 +02:00
|
|
|
|
CONFIG_SAMA5_EHCI_NQHS=12 : You will probably want more OHCI pipes
|
|
|
|
|
|
CONFIG_SAMA5_EHCI_NQTDS=16 : You will probably want more OHCI pipes
|
|
|
|
|
|
CONFIG_SAMA5_EHCI_BUFSIZE=128
|
|
|
|
|
|
|
2015-05-01 18:12:41 +02:00
|
|
|
|
Board Selection ->
|
|
|
|
|
|
CONFIG_SAMA5D4EK_USBHOST_STACKSIZE=2048 (bigger than it needs to be)
|
|
|
|
|
|
|
|
|
|
|
|
RTOS Features -> Work Queue Support
|
|
|
|
|
|
CONFIG_SCHED_LPWORK=y : Low priority queue support is needed
|
|
|
|
|
|
CONFIG_SCHED_LPNTHREADS=1
|
|
|
|
|
|
CONFIG_SCHED_LPWORKSTACKSIZE=1024
|
|
|
|
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
|
|
|
|
|
|
|
1. It is necessary to perform work on the low-priority work queue
|
|
|
|
|
|
(vs. the high priority work queue) because deferred hub-related
|
|
|
|
|
|
work requires some delays and waiting that is not appropriate on
|
|
|
|
|
|
the high priority work queue.
|
|
|
|
|
|
|
|
|
|
|
|
2. Stack usage make increase when USB hub support is enabled because
|
|
|
|
|
|
the nesting depth of certain USB host class logic can increase.
|
|
|
|
|
|
|
2015-05-01 23:38:03 +02:00
|
|
|
|
STATUS:
|
|
|
|
|
|
2015-05-01:
|
|
|
|
|
|
Verified that normal, non-hub OHCI still works.
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
Mass Storage Device Usage
|
|
|
|
|
|
-------------------------
|
|
|
|
|
|
|
|
|
|
|
|
Example Usage:
|
|
|
|
|
|
|
|
|
|
|
|
NuttShell (NSH) NuttX-6.29
|
|
|
|
|
|
nsh> ls /dev
|
|
|
|
|
|
/dev:
|
|
|
|
|
|
console
|
|
|
|
|
|
mtdblock0
|
|
|
|
|
|
null
|
|
|
|
|
|
ttyS0
|
|
|
|
|
|
|
|
|
|
|
|
Here a USB FLASH stick is inserted. Nothing visible happens in the
|
|
|
|
|
|
shell. But a new device will appear:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> ls /dev
|
|
|
|
|
|
/dev:
|
|
|
|
|
|
console
|
|
|
|
|
|
mtdblock0
|
|
|
|
|
|
null
|
|
|
|
|
|
sda
|
|
|
|
|
|
ttyS0
|
|
|
|
|
|
nsh> mount -t vfat /dev/sda /mnt/sda
|
|
|
|
|
|
nsh> ls -l /mnt/sda
|
|
|
|
|
|
/mnt/sda:
|
|
|
|
|
|
-rw-rw-rw- 8788 viminfo
|
|
|
|
|
|
drw-rw-rw- 0 .Trash-1000/
|
|
|
|
|
|
-rw-rw-rw- 3378 zmodem.patch
|
|
|
|
|
|
-rw-rw-rw- 1503 sz-1.log
|
|
|
|
|
|
-rw-rw-rw- 613 .bashrc
|
|
|
|
|
|
|
|
|
|
|
|
HID Keyboard Usage
|
|
|
|
|
|
------------------
|
|
|
|
|
|
|
|
|
|
|
|
If a (supported) USB keyboard is connected, a /dev/kbda device will appear:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> ls /dev
|
|
|
|
|
|
/dev:
|
|
|
|
|
|
console
|
|
|
|
|
|
kbda
|
|
|
|
|
|
mtdblock0
|
|
|
|
|
|
null
|
|
|
|
|
|
ttyS0
|
|
|
|
|
|
|
|
|
|
|
|
/dev/kbda is a read-only serial device. Reading from /dev/kbda will get
|
|
|
|
|
|
keyboard input as ASCII data (other encodings are possible):
|
|
|
|
|
|
|
|
|
|
|
|
nsh> cat /dev/kbda
|
|
|
|
|
|
|
|
|
|
|
|
Debugging USB Host
|
|
|
|
|
|
------------------
|
|
|
|
|
|
|
|
|
|
|
|
There is normal console debug output available that can be enabled with
|
|
|
|
|
|
CONFIG_DEBUG + CONFIG_DEBUG_USB. However, USB host operation is very time
|
|
|
|
|
|
critical and enabling this debug output might interfere with the operation
|
|
|
|
|
|
of the UDPHS. USB host tracing is a less invasive way to get debug
|
|
|
|
|
|
information: If tracing is enabled, the USB host will save encoded trace
|
|
|
|
|
|
output in in-memory buffer; if the USB monitor is also enabled, that trace
|
|
|
|
|
|
buffer will be periodically emptied and dumped to the system logging device
|
|
|
|
|
|
(the serial console in this configuration):
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> "USB Host Driver Support:
|
|
|
|
|
|
CONFIG_USBHOST_TRACE=y : Enable USB host trace feature
|
|
|
|
|
|
CONFIG_USBHOST_TRACE_NRECORDS=256 : Buffer 256 records in memory
|
|
|
|
|
|
CONFIG_USBHOST_TRACE_VERBOSE=y : Buffer everything
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> NSH LIbrary:
|
|
|
|
|
|
CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH
|
|
|
|
|
|
CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> System NSH Add-Ons:
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority
|
|
|
|
|
|
CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second
|
|
|
|
|
|
|
|
|
|
|
|
NOTE: If USB debug output is also enabled, both outpus will appear on the
|
|
|
|
|
|
serial console. However, the debug output will be asynchronous with the
|
|
|
|
|
|
trace output and, hence, difficult to interpret.
|
|
|
|
|
|
|
|
|
|
|
|
SDRAM Support
|
|
|
|
|
|
=============
|
|
|
|
|
|
|
|
|
|
|
|
SRAM Heap Configuration
|
|
|
|
|
|
-----------------------
|
|
|
|
|
|
|
|
|
|
|
|
In these configurations, .data and .bss are retained in ISRAM. SDRAM can
|
|
|
|
|
|
be initialized and included in the heap. Relevant configuration settings:
|
|
|
|
|
|
|
|
|
|
|
|
System Type->ATSAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_MPDDRC=y : Enable the DDR controller
|
|
|
|
|
|
|
|
|
|
|
|
System Type->External Memory Configuration
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS=y : Tell the system that DRAM is at the DDR CS
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_SIZE=268435456 : 2Gb DRAM -> 256MB
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_LPDDR2=y : Its DDR2
|
|
|
|
|
|
CONFIG_SAMA5D4EK_MT47H128M16RT=y : This is the type of DDR2
|
|
|
|
|
|
|
|
|
|
|
|
System Type->Heap Configuration
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_HEAP=y : Add the SDRAM to the heap
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_HEAP_OFFSET=0
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_HEAP_SIZE=268435456
|
|
|
|
|
|
|
|
|
|
|
|
Memory Management
|
|
|
|
|
|
CONFIG_MM_REGIONS=2 : Two heap memory regions: ISRAM and SDRAM
|
|
|
|
|
|
|
|
|
|
|
|
RAM Test
|
|
|
|
|
|
--------
|
|
|
|
|
|
|
|
|
|
|
|
Another thing you could do is to enable the RAM test built-in application.
|
|
|
|
|
|
You can enable the NuttX RAM test that may be used to verify the external
|
|
|
|
|
|
SDRAM. To do this, keep the SDRAM out of the heap so that it can be tested
|
|
|
|
|
|
without crashing programs using the memory:
|
|
|
|
|
|
|
|
|
|
|
|
System Type->Heap Configuration
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_HEAP=n : Don't add the SDRAM to the heap
|
|
|
|
|
|
|
|
|
|
|
|
Memory Management
|
|
|
|
|
|
CONFIG_MM_REGIONS=1 : One memory regions: ISRAM
|
|
|
|
|
|
|
|
|
|
|
|
Then enable the RAM test built-in application:
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration->System NSH Add-Ons->Ram Test
|
|
|
|
|
|
CONFIG_SYSTEM_RAMTEST=y
|
|
|
|
|
|
|
|
|
|
|
|
In this configuration, the SDRAM is not added to heap and so is not
|
|
|
|
|
|
accessable to the applications. So the RAM test can be freely executed
|
|
|
|
|
|
against the SRAM memory beginning at address 0x2000:0000 (DDR CS):
|
|
|
|
|
|
|
|
|
|
|
|
nsh> ramtest -h
|
|
|
|
|
|
Usage: <noname> [-w|h|b] <hex-address> <decimal-size>
|
|
|
|
|
|
|
|
|
|
|
|
Where:
|
|
|
|
|
|
<hex-address> starting address of the test.
|
|
|
|
|
|
<decimal-size> number of memory locations (in bytes).
|
|
|
|
|
|
-w Sets the width of a memory location to 32-bits.
|
|
|
|
|
|
-h Sets the width of a memory location to 16-bits (default).
|
|
|
|
|
|
-b Sets the width of a memory location to 8-bits.
|
|
|
|
|
|
|
|
|
|
|
|
To test the entire external 256MB SRAM:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> ramtest -w 20000000 268435456
|
|
|
|
|
|
RAMTest: Marching ones: 20000000 268435456
|
|
|
|
|
|
RAMTest: Marching zeroes: 20000000 268435456
|
|
|
|
|
|
RAMTest: Pattern test: 20000000 268435456 55555555 aaaaaaaa
|
|
|
|
|
|
RAMTest: Pattern test: 20000000 268435456 66666666 99999999
|
|
|
|
|
|
RAMTest: Pattern test: 20000000 268435456 33333333 cccccccc
|
|
|
|
|
|
RAMTest: Address-in-address test: 20000000 268435456
|
|
|
|
|
|
|
|
|
|
|
|
SDRAM Data Configuration
|
|
|
|
|
|
------------------------
|
|
|
|
|
|
|
|
|
|
|
|
In these configurations, .data and .bss are retained in ISRAM by default.
|
|
|
|
|
|
.data and .bss can also be retained in SDRAM using these slightly
|
|
|
|
|
|
different configuration settings. In this configuration, ISRAM is
|
|
|
|
|
|
used only for the Cortex-A5 page table for the IDLE thread stack.
|
|
|
|
|
|
|
|
|
|
|
|
System Type->ATSAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_MPDDRC=y : Enable the DDR controller
|
|
|
|
|
|
|
|
|
|
|
|
System Type->External Memory Configuration
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS=y : Tell the system that DRAM is at the DDR CS
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_SIZE=268435456 : 2Gb DRAM -> 256GB
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_LPDDR2=y : Its DDR2
|
|
|
|
|
|
CONFIG_SAMA5D4EK_MT47H128M16RT=y : This is the type of DDR2
|
|
|
|
|
|
|
|
|
|
|
|
System Type->Heap Configuration
|
|
|
|
|
|
CONFIG_SAMA5_ISRAM_HEAP=n : These do not apply in this case
|
2015-05-24 01:08:35 +02:00
|
|
|
|
CONFIG_SAMA5_DDRCS_HEAP=n
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
System Type->Boot Memory Configuration
|
|
|
|
|
|
CONFIG_RAM_START=0x20000000 : Physical address of SDRAM
|
|
|
|
|
|
CONFIG_RAM_VSTART=0x20000000 : Virtual address of SDRAM
|
|
|
|
|
|
CONFIG_RAM_SIZE=268435456 : Size of SDRAM
|
|
|
|
|
|
CONFIG_BOOT_SDRAM_DATA=y : Data is in SDRAM
|
|
|
|
|
|
|
|
|
|
|
|
Care must be used applied these RAM locations; graphics
|
|
|
|
|
|
configurations may use SDRAM in an incompatible way to set aside
|
|
|
|
|
|
LCD framebuffers.
|
|
|
|
|
|
|
|
|
|
|
|
Memory Management
|
|
|
|
|
|
CONFIG_MM_REGIONS=1 : One heap memory region: ISDRAM
|
|
|
|
|
|
|
|
|
|
|
|
NAND Support
|
|
|
|
|
|
============
|
|
|
|
|
|
|
|
|
|
|
|
NAND support is only partial in that there is no file system that works
|
|
|
|
|
|
with it properly. Lower-level NAND support has been developed and
|
|
|
|
|
|
verified, but there is no way to use it in the current NuttX architecture
|
|
|
|
|
|
other than through the raw MTD interface.
|
|
|
|
|
|
|
|
|
|
|
|
NAND should still be considered a work in progress. You will not want to
|
|
|
|
|
|
use NAND unless you are interested in investing a little effort,
|
|
|
|
|
|
particularly in infrastructure. See the "STATUS SUMMARY" section below.
|
|
|
|
|
|
|
|
|
|
|
|
NAND Support
|
|
|
|
|
|
------------
|
|
|
|
|
|
|
|
|
|
|
|
NAND Support can be added to the NSH configuration by modifying the
|
|
|
|
|
|
NuttX configuration file as follows:
|
|
|
|
|
|
|
|
|
|
|
|
Build Setup
|
|
|
|
|
|
CONFIG_EXPERIMENTAL=y : NXFFS implementation is incomplete and
|
|
|
|
|
|
: not yet fully functional.
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral support
|
|
|
|
|
|
CONFIG_SAMA5_HSMC=y : Make sure that the SMC is enabled
|
|
|
|
|
|
|
|
|
|
|
|
Drivers -> Memory Technology Device (MTD) Support
|
|
|
|
|
|
CONFIG_MTD=y : Enable MTD support
|
|
|
|
|
|
CONFIG_MTD_NAND=y : Enable NAND support
|
|
|
|
|
|
CONFIG_MTD_NAND_BLOCKCHECK=n : Interferes with NXFFS bad block checking
|
|
|
|
|
|
CONFIG_MTD_NAND_SWECC=y : Use S/W ECC calculation
|
|
|
|
|
|
|
|
|
|
|
|
Defaults for all other NAND settings should be okay
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> External Memory Configuration
|
|
|
|
|
|
CONFIG_SAMA5_EBICS3=y : Enable External CS3 memory
|
|
|
|
|
|
CONFIG_SAMA5_EBICS3_NAND=y : Select NAND memory type
|
|
|
|
|
|
CONFIG_SAMA5_EBICS3_SIZE=8388608 : Use this size
|
|
|
|
|
|
CONFIG_SAMA5_EBICS3_SWECC=y : Use S/W ECC calculation
|
|
|
|
|
|
|
|
|
|
|
|
Defaults for ROM page table addresses should be okay
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
|
|
CONFIG_NSH_ARCHINIT=y : Use architecture-specific initialization
|
|
|
|
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
|
|
|
|
|
|
|
1. WARNING: This will wipe out everything that you may have on the NAND
|
|
|
|
|
|
FLASH! I have found that using the JTAG with no valid image on NAND
|
|
|
|
|
|
or Serial FLASH is a problem: In that case, the code always ends up
|
|
|
|
|
|
in the SAM-BA bootloader.
|
|
|
|
|
|
|
|
|
|
|
|
My understanding is that you can enable JTAG in this case by simply
|
|
|
|
|
|
entering any data on the DBG serial port. I have not tried this.
|
|
|
|
|
|
Instead, I just changed to boot from Serial Flash:
|
|
|
|
|
|
|
|
|
|
|
|
2. Unfortunately, there are no appropriate NAND file system in NuttX as
|
|
|
|
|
|
of this writing. The following sections discussion issues/problems
|
|
|
|
|
|
with using NXFFS and FAT.
|
|
|
|
|
|
|
|
|
|
|
|
PMECC
|
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
|
|
Hardware ECC calculation using the SAMA5D4's PMECC can be enable as
|
|
|
|
|
|
follows:
|
|
|
|
|
|
|
|
|
|
|
|
Drivers -> Memory Technology Device (MTD) Support
|
|
|
|
|
|
CONFIG_MTD_NAND_SWECC=y : Don't use S/W ECC calculation
|
|
|
|
|
|
CONFIG_MTD_NAND_HWECC=y : Use H/W ECC instead
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> External Memory Configuration
|
|
|
|
|
|
CONFIG_SAMA5_EBICS3_SWECC=n : Don't use S/W ECC calculation
|
|
|
|
|
|
CONFIG_SAMA5_HAVE_PMECC=n : Use H/W ECC instead
|
|
|
|
|
|
|
|
|
|
|
|
Other PMECC-related default settings should be okay.
|
|
|
|
|
|
|
|
|
|
|
|
STATUS: As of the writing, NAND transfers using PMECC appear to
|
|
|
|
|
|
work correctly. However, the PMECC based systems do not work as
|
|
|
|
|
|
as well with FAT or NXFFS. My belief that that the FAT/NXFFS layers
|
|
|
|
|
|
are inappropriate for NAND and, as a result, happen not to work with
|
|
|
|
|
|
the PMECC ECC calculation. See also the "STATUS SUMMARY" section below.
|
|
|
|
|
|
|
|
|
|
|
|
DMA Support
|
|
|
|
|
|
-----------
|
|
|
|
|
|
|
|
|
|
|
|
DMA support can be enabled as follows:
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral support
|
|
|
|
|
|
CONFIG_SAMA5_DMAC0=y : Use DMAC0 for memory-to-memory DMA
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> External Memory Configuration
|
|
|
|
|
|
CONFIG_SAMA5_NAND_DMA=y : Use DMAC0 for NAND data transfers
|
|
|
|
|
|
|
|
|
|
|
|
STATUS: DMA appears to be functional, but probably has not been
|
|
|
|
|
|
exercised enough to claim that with any certainty. See also the "STATUS
|
|
|
|
|
|
SUMMARY" section below.
|
|
|
|
|
|
|
|
|
|
|
|
NXFFS
|
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
|
|
The NuttX FLASH File System (NXFFS) works well with NOR-like FLASH
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but does not work well with NAND (See comments below under STATUS)
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File Systems:
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CONFIG_FS_NXFFS=y : Enable the NXFFS file system
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Defaults for all other NXFFS settings should be okay.
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NOTE: NXFFS will require some significant buffering because of
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the large size of the NAND flash blocks. You will also need
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to enable SDRAM as described above.
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Board Selection
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2014-07-29 23:34:31 +02:00
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CONFIG_SAMA5D4EK_NAND_BLOCKMOUNT=y : Enable FS support on NAND
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CONFIG_SAMA5D4EK_NAND_NXFFS=y : Use the NXFFS file system
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2014-06-06 20:37:36 +02:00
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Other file systems are not recommended because only NXFFS can handle
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bad blocks and only NXFFS performs wear-levelling.
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FAT
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---
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Another option is FAT. FAT, however, is not appropriate for use with
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NAND: FAT will not handle bad blocks, does not perform any wear
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levelling, and may not conform to writing ordering requirements of NAND.
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Also, there appear to be issues with FAT when PMECC is enabled (see
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"STATUS SUMMARY" below).
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File Systems:
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CONFIG_FS_FAT=y : Enable the FAT FS
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CONFIG_FAT_LCNAMES=y : With lower case name support
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CONFIG_FAT_LFN=y : And (patented) FAT long file name support
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CONFIG_FS_NXFFS=n : Don't need NXFFS
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Defaults for all other NXFFS settings should be okay.
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Board Selection
|
2014-07-29 23:34:31 +02:00
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CONFIG_SAMA5D4EK_NAND_BLOCKOMOUNT=y : Enable FS support on NAND
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CONFIG_SAMA5D4EK_NAND_FTL=y : Use an flash translation layer
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2014-06-06 20:37:36 +02:00
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NOTE: FTL will require some significant buffering because of
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the large size of the NAND flash blocks. You will also need
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to enable SDRAM as described above.
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SMART FS
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--------
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Another option is Smart FS. Smart FS is another small file system
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designed to work with FLASH. Properties: It does support some wear-
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leveling like NXFFS, but like FAT, cannot handle bad blocks and like
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NXFFS, it will try to re-write erased bits.
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Using NAND with NXFFS
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---------------------
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2014-07-29 23:34:31 +02:00
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With the options CONFIG_SAMA5D4EK_NAND_BLOCKMOUNT=y and
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2014-06-06 20:37:36 +02:00
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CONFIG_SAMA5D4EK_NAND_NXFFS=y, the NAND FLASH will be mounted in the NSH
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start-up logic before the NSH prompt appears. There is no feedback as
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to whether or not the mount was successful. You can, however, see the
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mounted file systems using the nsh 'mount' command:
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nsh> mount
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/mnt/nand type nxffs
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Then NAND can be used like any other file system:
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nsh> echo "This is a test" >/mnt/nand/atest.txt
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nsh> ls -l /mnt/nand
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/mnt/nand:
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---x--x--x 16 atest.txt
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nsh> cat /mnt/nand/atest.txt
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This is a test
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The NAND volume can be un-mounted with this comment:
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nsh> umount /mnt/nand
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nsh> mount
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And re-mounted with this command:
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nsh> mount -t nxffs /mnt/mystuff
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nsh> mount
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/mnt/mystuff type nxffs
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NOTES:
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1. NXFFS can be very slow. The first time that you start the system,
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be prepared for a wait; NXFFS will need to format the NAND volume.
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I have lots of debug on so I don't yet know what the optimized wait
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will be. But with debug ON, software ECC, and no DMA the wait is
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in many tens of minutes (and substantially longer if many debug
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options are enabled.
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[I don't yet have data for the more optimal cases. It will be
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significantly less, but still not fast.]
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2. On subsequent boots, after the NXFFS file system has been created
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the delay will be less. When the new file system is empty, it will
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be very fast. But the NAND-related boot time can become substantial
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when there has been a lot of usage of the NAND. This is because
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NXFFS needs to scan the NAND device and build the in-memory dataset
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needed to access NAND and there is more that must be scanned after
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the device has been used. You may want to create a separate thread at
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boot time to bring up NXFFS so that you don't delay the boot-to-prompt
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time excessively in these longer delay cases.
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3. There is another NXFFS related performance issue: When the FLASH
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is fully used, NXFFS will restructure the entire FLASH, the delay
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to restructure the entire FLASH will probably be even larger. This
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solution in this case is to implement an NXFSS clean-up daemon that
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does the job a little-at-a-time so that there is no massive clean-up
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when the FLASH becomes full.
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4. Bad NXFFS behavior with NAND: If you restart NuttX, the files that
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you wrote to NAND will be gone. Why? Because the multiple writes
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have corrupted the NAND ECC bits. See STATUS below. NXFFS would
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require a major overhaul to be usable with NAND.
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Using NAND with FAT
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-------------------
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If configured for FAT, the system will create block driver at
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/dev/mtdblock0:
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NuttShell (NSH)
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nsh> ls /dev
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/dev:
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console
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mtdblock0
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null
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ttyS0
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You will not that the system comes up immediately because there is not
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need to scan the volume in this case..
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The NSH 'mkfatfs' command can be used to format a FAT file system on
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NAND.
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nsh> mkfatfs /dev/mtdblock0
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This step, on the other hand, requires quite a bit of time.
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And the FAT file system can be mounted like:
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nsh> mount -t vfat /dev/mtdblock0 /mnt/nand
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nsh> ls /mnt/nand
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/mnt/nand:
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nsh> echo "This is a test" > /mnt/nand/atest.txt
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NOTE: This will take a long time because it will require reading,
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modifying, and re-writing the 128KB erase page!
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nsh> ls -l /mnt/nand
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/mnt/nand:
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-rw-rw-rw- 16 atest.txt
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nsh> cat /mnt/fat/atest.txt
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This is a test
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NOTES:
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1. Unlike NXFFS, FAT can work with NAND (at least with PMECC disabled).
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But there are some significant issues.
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2. First, each NAND write access will cause a 256KB data transfer: It
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will read the entire 128KB erase block, modify it and write it back
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to memory. There is some caching logic so that this cached erase
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block can be re-used if possible and writes will be deferred as long
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as possible.
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3. If you hit a bad block, then FAT is finished. There is no mechanism
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in place in FAT not to mark and skip over bad blocks.
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What is Needed
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--------------
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What is needed to work with FAT properly would be another MTD layer
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between the FTL layer and the NAND FLASH layer. That layer would
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perform bad block detection and sparing so that FAT works transparently
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on top of the NAND.
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Another, less general, option would be support bad blocks within FAT.
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STATUS SUMMARY
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--------------
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1. PMECC appears to be working in that I can write a NAND block with its
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ECC and read the block back and verify that that is are no bit
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failures. However, when attempting to work with FAT, it does not
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work correctly: The MBR is written and read back correctly, but gets
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corrupted later for unknown reasons.
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2. DMA works (at least with software ECC), but I have seen occasional
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failures. I recommend enabling DMA with caution.
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In NuttX, DMA will also cost two context switches (and, hence, four
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register state transfers). With smaller NAND page sizes (say 2KiB and
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below), I would expect little or no performance improvement with DMA
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for this reason.
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3. NXFFS does not work with NAND. NAND differs from other other FLASH
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types several ways. For one thing, NAND requires error correction
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(ECC) bytes that must be set in order to work around bit failures.
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This affects NXFFS in two ways:
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a. First, write failures are not fatal. Rather, they should be tried by
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bad blocks and simply ignored. This is because unrecoverable bit
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failures will cause read failures when reading from NAND. Setting
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the CONFIG_EXPERIMENTAL+CONFIG_NXFFS_NANDs option will enable this
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behavior.
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b. Secondly, NXFFS will write a block many times. It tries to keep
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bits in the erased state and assumes that it can overwrite those bits
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to change them from the erased to the non-erased state. This works
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will with NOR-like FLASH. NAND behaves this way too. But the
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problem with NAND is that the ECC bits cannot be re-written in this
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way. So once a block has been written, it cannot be modified. This
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behavior has NOT been fixed in NXFFS. Currently, NXFFS will attempt
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to re-write the ECC bits causing the ECC to become corrupted because
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the ECC bits cannot be overwritten without erasing the entire block.
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This may prohibit NXFFS from ever being used with NAND.
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4. As mentioned above, FAT does work but (1) has some performance issues on
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writes and (2) cannot handle bad blocks.
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|
|
2015-09-30 00:09:22 +02:00
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|
|
5. There was a major reorganization of the SAMA5 code after NuttX-7.11 to
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|
|
add support for the SAMA5D2. Only the SAMA5D4-EK nsh configuration was
|
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|
|
|
re-verified on 2015-09-29.
|
2015-09-29 21:48:55 +02:00
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
I2C Tool
|
|
|
|
|
|
========
|
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|
|
I2C Tool. NuttX supports an I2C tool at apps/system/i2c that can be used
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|
|
to peek and poke I2C devices. That tool can be enabled by setting the
|
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|
|
following:
|
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|
|
System Type -> SAMA5 Peripheral Support
|
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|
|
CONFIG_SAMA5_TWI0=y : Enable TWI0
|
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|
|
CONFIG_SAMA5_TWI1=y : Enable TWI1
|
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|
|
CONFIG_SAMA5_TWI2=y : Enable TWI2
|
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|
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|
|
|
|
|
|
System Type -> TWI device driver options
|
2014-07-02 21:51:57 +02:00
|
|
|
|
SAMA5_TWI0_FREQUENCY=100000 : Select a TWI0 frequency (default)
|
|
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|
|
|
SAMA5_TWI1_FREQUENCY=100000 : Select a TWI1 frequency (default)
|
|
|
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|
|
SAMA5_TWI2_FREQUENCY=100000 : Select a TWI2 frequency (default)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Device Drivers -> I2C Driver Support
|
|
|
|
|
|
CONFIG_I2C=y : Enable I2C support
|
|
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|
|
CONFIG_I2C_TRANSFER=y : Driver supports the transfer() method
|
|
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|
|
Application Configuration -> NSH Library
|
|
|
|
|
|
CONFIG_SYSTEM_I2CTOOL=y : Enable the I2C tool
|
|
|
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|
|
CONFIG_I2CTOOL_MINBUS=0 : TWI0 has the minimum bus number 0
|
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|
|
CONFIG_I2CTOOL_MAXBUS=2 : TWI2 has the maximum bus number 2
|
|
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|
|
CONFIG_I2CTOOL_DEFFREQ=100000 : Pick a consistent frequency
|
|
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|
|
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|
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|
|
The I2C tool has extensive help that can be accessed as follows:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> i2c help
|
|
|
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|
|
Usage: i2c <cmd> [arguments]
|
|
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|
|
|
Where <cmd> is one of:
|
|
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|
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|
|
Show help : ?
|
|
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|
|
|
List busses : bus
|
|
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|
|
List devices : dev [OPTIONS] <first> <last>
|
|
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|
|
|
Read register : get [OPTIONS] [<repititions>]
|
|
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|
|
Show help : help
|
|
|
|
|
|
Write register: set [OPTIONS] <value> [<repititions>]
|
|
|
|
|
|
Verify access : verf [OPTIONS] [<value>] [<repititions>]
|
|
|
|
|
|
|
|
|
|
|
|
Where common "sticky" OPTIONS include:
|
|
|
|
|
|
[-a addr] is the I2C device address (hex). Default: 03 Current: 03
|
|
|
|
|
|
[-b bus] is the I2C bus number (decimal). Default: 0 Current: 0
|
|
|
|
|
|
[-r regaddr] is the I2C device register address (hex). Default: 00 Current: 00
|
|
|
|
|
|
[-w width] is the data width (8 or 16 decimal). Default: 8 Current: 8
|
|
|
|
|
|
[-s|n], send/don't send start between command and data. Default: -n Current: -n
|
|
|
|
|
|
[-i|j], Auto increment|don't increment regaddr on repititions. Default: NO Current: NO
|
|
|
|
|
|
[-f freq] I2C frequency. Default: 100000 Current: 100000
|
|
|
|
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
|
o Arguments are "sticky". For example, once the I2C address is
|
|
|
|
|
|
specified, that address will be re-used until it is changed.
|
|
|
|
|
|
|
|
|
|
|
|
WARNING:
|
|
|
|
|
|
o The I2C dev command may have bad side effects on your I2C devices.
|
|
|
|
|
|
Use only at your own risk.
|
|
|
|
|
|
|
|
|
|
|
|
As an example, the I2C dev comman can be used to list all devices
|
|
|
|
|
|
responding on TWI0 (the default) like this:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> i2c dev 0x03 0x77
|
2014-07-31 19:14:57 +02:00
|
|
|
|
0 1 2 3 4 5 6 7 8 9 a b c d e f
|
2014-06-06 20:37:36 +02:00
|
|
|
|
00: -- -- -- -- -- -- -- -- -- -- -- -- --
|
2014-07-31 19:14:57 +02:00
|
|
|
|
10: -- -- -- -- -- -- -- -- -- -- -- 1b -- -- -- --
|
2014-06-06 20:37:36 +02:00
|
|
|
|
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
|
2014-07-31 19:14:57 +02:00
|
|
|
|
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
|
|
|
|
|
|
40: -- -- -- -- -- -- -- -- -- -- -- -- 4c -- -- --
|
|
|
|
|
|
50: 50 -- -- -- -- -- -- -- -- -- -- 5b -- -- -- --
|
|
|
|
|
|
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
|
2014-06-06 20:37:36 +02:00
|
|
|
|
70: -- -- -- -- -- -- -- --
|
|
|
|
|
|
nsh>
|
|
|
|
|
|
|
2014-07-31 19:14:57 +02:00
|
|
|
|
Addresses 0x1b, 0x4c, and 0x50 are devices on the TM7000 module.
|
|
|
|
|
|
0x5b is the address of the on-board PMIC chip.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
SAMA5 ADC Support
|
|
|
|
|
|
=================
|
|
|
|
|
|
|
|
|
|
|
|
Basic driver configuration
|
|
|
|
|
|
--------------------------
|
|
|
|
|
|
ADC support can be added to the NSH configuration. However, there are no
|
|
|
|
|
|
ADC input pins available to the user for ADC testing (the touchscreen ADC
|
|
|
|
|
|
inputs are intended for other functionality). Because of this, there is
|
|
|
|
|
|
not much motivation to enable ADC support on the SAMA4D4-EK. This
|
|
|
|
|
|
paragraph is included here, however, for people using a custom SAMA5D4x
|
|
|
|
|
|
board that requires ADC support.
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_ADC=y : Enable ADC driver support
|
|
|
|
|
|
CONFIG_SAMA5_TC0=y : Enable the Timer/counter library need for periodic sampling
|
|
|
|
|
|
|
|
|
|
|
|
Drivers
|
|
|
|
|
|
CONFIG_ANALOG=y : Should be automatically selected
|
|
|
|
|
|
CONFIG_ADC=y : Should be automatically selected
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> ADC Configuration
|
|
|
|
|
|
CONFIG_SAMA5_ADC_CHAN0=y : These settings enable the sequencer to collect
|
|
|
|
|
|
CONFIG_SAMA5_ADC_CHAN1=y : Samples from ADC channels 0-3 on each trigger
|
|
|
|
|
|
CONFIG_SAMA5_ADC_CHAN2=y
|
|
|
|
|
|
CONFIG_SAMA5_ADC_CHAN3=y
|
|
|
|
|
|
CONFIG_SAMA5_ADC_SEQUENCER=y
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_ADC_TIOA0TRIG=y : Trigger on the TC0, channel 0 output A
|
|
|
|
|
|
CONFIG_SAMA5_ADC_TIOAFREQ=2 : At a frequency of 2Hz
|
|
|
|
|
|
CONFIG_SAMA5_ADC_TIOA_RISING=y : Trigger on the rising edge
|
|
|
|
|
|
|
|
|
|
|
|
Default ADC settings (like gain and offset) may also be set if desired.
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> Timer/counter Configuration
|
|
|
|
|
|
CONFIG_SAMA5_TC0_TIOA0=y : Should be automatically selected
|
|
|
|
|
|
|
|
|
|
|
|
Work queue supported is also needed:
|
|
|
|
|
|
|
|
|
|
|
|
Library routines
|
|
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y
|
|
|
|
|
|
|
|
|
|
|
|
ADC Test Example
|
|
|
|
|
|
----------------
|
|
|
|
|
|
For testing purposes, there is an ADC program at apps/examples/adc that
|
|
|
|
|
|
will collect a specified number of samples. This test program can be
|
|
|
|
|
|
enabled as follows:
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> Examples -> ADC example
|
|
|
|
|
|
CONFIG_EXAMPLES_ADC=y : Enables the example code
|
|
|
|
|
|
CONFIG_EXAMPLES_ADC_DEVPATH="/dev/adc0"
|
|
|
|
|
|
|
|
|
|
|
|
Other default settings for the ADC example should be okay.
|
|
|
|
|
|
|
|
|
|
|
|
ADC DMA Support
|
|
|
|
|
|
---------------
|
|
|
|
|
|
At 2Hz, DMA is not necessary nor desire-able. The ADC driver has support
|
|
|
|
|
|
for DMA transfers of converted data (although that support has not been
|
|
|
|
|
|
tested as of this writing). DMA support can be added by include the
|
|
|
|
|
|
following in the configuration.
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_DMAC1=y : Enable DMAC1 support
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> ADC Configuration
|
|
|
|
|
|
CONFIG_SAMA5_ADC_DMA=y : Enable ADC DMA transfers
|
|
|
|
|
|
CONFIG_SAMA5_ADC_DMASAMPLES=2 : Collect two sets of samples per DMA
|
|
|
|
|
|
|
|
|
|
|
|
Drivers -> Analog device (ADC/DAC) support
|
|
|
|
|
|
CONFIG_ADC_FIFOSIZE=16 : Driver may need a large ring buffer
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> Examples -> ADC example
|
|
|
|
|
|
CONFIG_EXAMPLES_ADC_GROUPSIZE=16 : Larger buffers in the test
|
|
|
|
|
|
|
|
|
|
|
|
SAMA5 PWM Support
|
|
|
|
|
|
=================
|
|
|
|
|
|
|
|
|
|
|
|
Basic driver configuration
|
|
|
|
|
|
--------------------------
|
|
|
|
|
|
PWM support can be added to the NSH configuration. However, there are no
|
|
|
|
|
|
PWM output pins available to the user for PWM testing. Because of this,
|
|
|
|
|
|
there is not much motivation to enable PWM support on the SAMA4D4-EK. This
|
|
|
|
|
|
paragraph is included here, however, for people using a custom SAMA5D4x
|
|
|
|
|
|
board that requires PWM support.
|
|
|
|
|
|
|
|
|
|
|
|
Basic driver configuration:
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_PWM=y : Enable PWM driver support
|
|
|
|
|
|
|
|
|
|
|
|
Drivers
|
|
|
|
|
|
CONFIG_PWM=y : Should be automatically selected
|
|
|
|
|
|
|
|
|
|
|
|
PWM Channel/Output Selection
|
|
|
|
|
|
----------------------------
|
|
|
|
|
|
In order to use the PWM, you must enable one or more PWM Channels:
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> PWM Configuration
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHAN0=y : Enable one or more of channels 0-3
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHAN1=y
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHAN2=y
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHAN3=y
|
|
|
|
|
|
|
|
|
|
|
|
For each channel that is enabled, you must also specify the output pins
|
|
|
|
|
|
to be enabled and the clocking supplied to the PWM channel.
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHANx_FAULTINPUT=n : (not used currently)
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHANx_OUTPUTH=y : Enable One of both of the H and L output pins
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHANx_OUTPUTL=y
|
|
|
|
|
|
|
|
|
|
|
|
Where x=0..3.
|
|
|
|
|
|
|
|
|
|
|
|
Care must be taken because all PWM output pins conflict with some other
|
|
|
|
|
|
usage of the pin by other devices. Furthermore, many of these pins have
|
|
|
|
|
|
not been brought out to an external connector:
|
|
|
|
|
|
|
|
|
|
|
|
-----+---+---+----+------+----------------
|
|
|
|
|
|
PWM PIN PER PIO I/O CONFLICTS
|
|
|
|
|
|
-----+---+---+----+------+----------------
|
|
|
|
|
|
PWM0 FI B PC28 J2.30 SPI1, ISI
|
|
|
|
|
|
H B PB0 --- GMAC
|
|
|
|
|
|
B PA20 J1.14 LCDC, ISI
|
|
|
|
|
|
L B PB1 --- GMAC
|
|
|
|
|
|
B PA21 J1.16 LCDC, ISI
|
|
|
|
|
|
-----+---+---+----+------+----------------
|
|
|
|
|
|
PWM1 FI B PC31 J2.36 HDMI
|
|
|
|
|
|
H B PB4 --- GMAC
|
|
|
|
|
|
B PA22 J1.18 LCDC, ISI
|
|
|
|
|
|
L B PB5 --- GMAC
|
|
|
|
|
|
B PE31 J3.20 ISI, HDMI
|
|
|
|
|
|
B PA23 J1.20 LCDC, ISI
|
|
|
|
|
|
-----+---+---+----+------+----------------
|
|
|
|
|
|
PWM2 FI B PC29 J2.29 UART0, ISI, HDMI
|
|
|
|
|
|
H C PD5 --- HSMCI0
|
|
|
|
|
|
B PB8 --- GMAC
|
|
|
|
|
|
L C PD6 --- HSMCI0
|
|
|
|
|
|
B PB9 --- GMAC
|
|
|
|
|
|
-----+---+---+----+------+----------------
|
|
|
|
|
|
PWM3 FI C PD16 --- SPI0, Audio
|
|
|
|
|
|
H C PD7 --- HSMCI0
|
|
|
|
|
|
B PB12 J3.7 GMAC
|
|
|
|
|
|
L C PD8 --- HSMCI0
|
|
|
|
|
|
B PB13 --- GMAC
|
|
|
|
|
|
-----+---+---+----+--------------------
|
|
|
|
|
|
|
|
|
|
|
|
See configs/sama5d4-ek/include/board.h for all of the default PWM
|
|
|
|
|
|
pin selections. I used PWM channel 0, pins PA20 and PA21 for testing.
|
|
|
|
|
|
|
|
|
|
|
|
Clocking is addressed in the next paragraph.
|
|
|
|
|
|
|
|
|
|
|
|
PWM Clock Configuration
|
|
|
|
|
|
-----------------------
|
|
|
|
|
|
PWM Channels can be clocked from either a coarsely divided divided down
|
|
|
|
|
|
MCK or from a custom frequency from PWM CLKA and/or CLKB. If you want
|
|
|
|
|
|
to use CLKA or CLKB, you must enable and configure them.
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> PWM Configuration
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CLKA=y
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CLKA_FREQUENCY=3300
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CLKB=y
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CLKB_FREQUENCY=3300
|
|
|
|
|
|
|
|
|
|
|
|
Then for each of the enabled, channels you must select the input clock
|
|
|
|
|
|
for that channel:
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> PWM Configuration
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHANx_CLKA=y : Pick one of MCK, CLKA, or CLKB (only)
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHANx_CLKB=y
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHANx_MCK=y
|
|
|
|
|
|
CONFIG_SAMA5_PWM_CHANx_MCKDIV=128 : If MCK is selected, then the MCK divider must
|
|
|
|
|
|
: also be provided (1,2,4,8,16,32,64,128,256,512, or 1024).
|
|
|
|
|
|
|
|
|
|
|
|
PWM Test Example
|
|
|
|
|
|
----------------
|
|
|
|
|
|
For testing purposes, there is an PWM program at apps/examples/pwm that
|
|
|
|
|
|
will collect a specified number of samples. This test program can be
|
|
|
|
|
|
enabled as follows:
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> Examples -> PWM example
|
|
|
|
|
|
CONFIG_EXAMPLES_PWM=y : Enables the example code
|
|
|
|
|
|
|
|
|
|
|
|
Other default settings for the PWM example should be okay.
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_EXAMPLES_PWM_DEVPATH="/dev/pwm0"
|
|
|
|
|
|
CONFIG_EXAMPLES_PWM_FREQUENCY=100
|
|
|
|
|
|
|
|
|
|
|
|
Usage of the example is straightforward:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> pwm -h
|
|
|
|
|
|
Usage: pwm [OPTIONS]
|
|
|
|
|
|
|
|
|
|
|
|
Arguments are "sticky". For example, once the PWM frequency is
|
|
|
|
|
|
specified, that frequency will be re-used until it is changed.
|
|
|
|
|
|
|
|
|
|
|
|
"sticky" OPTIONS include:
|
|
|
|
|
|
[-p devpath] selects the PWM device. Default: /dev/pwm0 Current: /dev/pwm0
|
|
|
|
|
|
[-f frequency] selects the pulse frequency. Default: 100 Hz Current: 100 Hz
|
|
|
|
|
|
[-d duty] selects the pulse duty as a percentage. Default: 50 % Current: 50 %
|
|
|
|
|
|
[-t duration] is the duration of the pulse train in seconds. Default: 5 Current: 5
|
|
|
|
|
|
[-h] shows this message and exits
|
|
|
|
|
|
|
|
|
|
|
|
RTC
|
|
|
|
|
|
===
|
|
|
|
|
|
|
|
|
|
|
|
The Real Time Clock/Calendar RTC) may be enabled with these settings:
|
|
|
|
|
|
|
|
|
|
|
|
System Type:
|
|
|
|
|
|
CONFIG_SAMA5_RTC=y : Enable the RTC driver
|
|
|
|
|
|
|
|
|
|
|
|
Drivers (these values will be selected automatically):
|
|
|
|
|
|
CONFIG_RTC=y : Use the RTC for system time
|
|
|
|
|
|
CONFIG_RTC_DATETIME=y : RTC supports data/time
|
|
|
|
|
|
|
2014-06-29 15:40:37 +02:00
|
|
|
|
NOTE: If you want the RTC to preserve time over power cycles, you will
|
|
|
|
|
|
need to install a battery in the battery holder (J12) and close the jumper,
|
|
|
|
|
|
JP13.
|
|
|
|
|
|
|
|
|
|
|
|
You can set the RTC using the NSH date command:
|
|
|
|
|
|
|
|
|
|
|
|
NuttShell (NSH) NuttX-7.3
|
|
|
|
|
|
nsh> help date
|
|
|
|
|
|
date usage: date [-s "MMM DD HH:MM:SS YYYY"]
|
|
|
|
|
|
nsh> date
|
|
|
|
|
|
Jan 01 00:34:45 2012
|
|
|
|
|
|
nsh> date -s "JUN 29 7:30:00 2014"
|
|
|
|
|
|
nsh> date
|
|
|
|
|
|
Jun 29 07:30:01 2014
|
|
|
|
|
|
|
|
|
|
|
|
After a power cycle and reboot:
|
|
|
|
|
|
|
|
|
|
|
|
NuttShell (NSH) NuttX-7.3
|
|
|
|
|
|
nsh> date
|
|
|
|
|
|
Jun 29 07:30:55 2014
|
|
|
|
|
|
nsh>
|
|
|
|
|
|
|
|
|
|
|
|
The RTC also supports an alarm that may be enable with the following
|
|
|
|
|
|
settings. However, there is nothing in the system that currently makes
|
|
|
|
|
|
use of this alarm.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Drivers:
|
|
|
|
|
|
CONFIG_RTC_ALARM=y : Enable the RTC alarm
|
|
|
|
|
|
|
|
|
|
|
|
Library Routines
|
2014-06-29 15:40:37 +02:00
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y : Alarm needs work queue support
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Watchdog Timer
|
|
|
|
|
|
==============
|
|
|
|
|
|
|
|
|
|
|
|
NSH can be configured to exercise the watchdog timer test
|
|
|
|
|
|
(apps/examples/watchdog). This can be selected with the following
|
|
|
|
|
|
settings in the NuttX configuration file:
|
|
|
|
|
|
|
|
|
|
|
|
System Type:
|
|
|
|
|
|
CONFIG_SAMA5_WDT=y : Enable the WDT peripheral
|
2014-06-29 15:40:37 +02:00
|
|
|
|
: Defaults values for others settings
|
|
|
|
|
|
should be OK
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Drivers (this will automatically be selected):
|
|
|
|
|
|
CONFIG_WATCHDOG=y : Enables watchdog timer driver support
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> Examples
|
|
|
|
|
|
CONFIG_EXAMPLES_WATCHDOG=y : Enable apps/examples/watchdog
|
|
|
|
|
|
|
|
|
|
|
|
The WDT timer is driven off the slow, 32768Hz clock divided by 128. As a
|
|
|
|
|
|
result, the watchdog a maximum timeout value of 16 seconds. The SAMA5 WDT
|
|
|
|
|
|
may also only be programmed one time; the processor must be reset before
|
|
|
|
|
|
the WDT can be reprogrammed.
|
|
|
|
|
|
|
|
|
|
|
|
The SAMA5 always boots with the watchdog timer enabled at its maximum
|
|
|
|
|
|
timeout (16 seconds). In the normal case where no watchdog timer driver
|
|
|
|
|
|
has been configured, the watchdog timer is disabled as part of the start
|
|
|
|
|
|
up logic. But, since we are permitted only one opportunity to program
|
|
|
|
|
|
the WDT, we cannot disable the watchdog time if CONFIG_SAMA5_WDT=y. So,
|
|
|
|
|
|
be forewarned: You have only 16 seconds to run your watchdog timer test!
|
|
|
|
|
|
|
2014-06-27 00:42:06 +02:00
|
|
|
|
NOTE: If you are using the dramboot program to run from DRAM as I did,
|
|
|
|
|
|
beware that the default version also disables the watchdog. You will
|
|
|
|
|
|
need a special version of dramboot with CONFIG_SAMA5_WDT=y.
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
TRNG and /dev/random
|
|
|
|
|
|
====================
|
|
|
|
|
|
|
|
|
|
|
|
NSH can be configured to enable the SAMA5 TRNG peripheral so that it
|
|
|
|
|
|
provides /dev/random. The following configuration will enable the TRNG,
|
2014-06-29 00:11:41 +02:00
|
|
|
|
and support for /dev/random:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
System Type:
|
|
|
|
|
|
CONFIG_SAMA5_TRNG=y : Enable the TRNG peripheral
|
|
|
|
|
|
|
2014-06-29 00:11:41 +02:00
|
|
|
|
Drivers:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_DEV_RANDOM=y : Enable /dev/random
|
|
|
|
|
|
|
2014-06-29 00:11:41 +02:00
|
|
|
|
A simple test of /dev/random is available at apps/examples/random and
|
|
|
|
|
|
can be enabled as a NSH application via the following additional
|
|
|
|
|
|
configuration settings:
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
Applications -> Examples
|
|
|
|
|
|
CONFIG_EXAMPLES_RANDOM=y : Enable apps/examples/random
|
|
|
|
|
|
CONFIG_EXAMPLES_MAXSAMPLES=64 : Default settings are probably OK
|
|
|
|
|
|
CONFIG_EXAMPLES_NSAMPLES=8
|
|
|
|
|
|
|
2014-07-19 19:58:53 +02:00
|
|
|
|
Audio Support
|
|
|
|
|
|
==============
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-19 19:58:53 +02:00
|
|
|
|
WM8904 CODEC
|
|
|
|
|
|
------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
The SAMA4D4-EK has two devices on-board that can be used for verification
|
|
|
|
|
|
of I2S functionality: HDMI and a WM8904 audio CODEC. As of this writing,
|
|
|
|
|
|
the I2S driver is present, but there are not drivers for either the HDMI
|
|
|
|
|
|
or the WM8904.
|
|
|
|
|
|
|
2014-07-19 19:58:53 +02:00
|
|
|
|
WM8904 Audio CODEC Interface:
|
|
|
|
|
|
---- ------------------ ---------------- ------------- ---------------------------------------
|
|
|
|
|
|
PIO USAGE BOARD SIGNAL WM8904 PIN NOTE
|
|
|
|
|
|
---- ------------------ ---------------- ------------- ---------------------------------------
|
2014-09-18 16:35:15 +02:00
|
|
|
|
PA30 TWD0 AUDIO_TWD0_PA30 3 SDA Pulled up, See JP23 note below
|
2014-07-19 19:58:53 +02:00
|
|
|
|
PA31 TWCK0 AUDIO_TWCK0_PA31 2 SCLK Pulled up
|
|
|
|
|
|
PB10 AUDIO_PCK2/EXP AUDIO_PCK2_PB10 28 MCLK
|
|
|
|
|
|
PB27 AUDIO/HDMI_TK0/EXP AUDIO_TK0_PB27 29 BCLK/GPIO4 Note TK0 and RK0 are mutually exclusive
|
|
|
|
|
|
PB26 AUDIO_RK0 AUDIO_RK0_PB26 29 " "/" " " " " " " " " " " " " " " "
|
|
|
|
|
|
PB30 AUDIO_RF/ZIG_TWCK2 AUDIO_RF0_PB30 30 LRCLK Note TF0 and RF0 are mutually exclusive
|
|
|
|
|
|
PB31 AUDIO/HDMI_TF0/EXP AUDIO_TF0_PB31 30 " " " " " " " " " " " " " " " "
|
|
|
|
|
|
PB29 AUDIO_RD0/ZIG_TWD2 AUDIO_RD0_PB29 31 ADCDAT
|
|
|
|
|
|
PB28 AUDIO/HDMI_TD0/EXP AUDIO_TD0_PB28 32 ACDAT
|
|
|
|
|
|
PE4 AUDIO_IRQ AUDIO_IRQ_PE4 1 IRQ/GPIO1 Audio interrupt
|
|
|
|
|
|
---- ------------------ ---------------- ------------- ---------------------------------------
|
2014-09-18 16:35:15 +02:00
|
|
|
|
Note that jumper JP23 must be closed to connect AUDIO_TWD0_PA30 (Rev C. only)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-19 19:58:53 +02:00
|
|
|
|
WM8904 Configuration
|
|
|
|
|
|
--------------------
|
2014-06-06 20:37:36 +02:00
|
|
|
|
System Type -> SAMA5 Peripheral Support
|
2014-07-31 19:14:57 +02:00
|
|
|
|
CONFIG_SAMA5_XDMAC0=y : XDMAC0 required by SSC0
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_SAMA5_TWI0=y : Enable TWI0 driver support
|
|
|
|
|
|
CONFIG_SAMA5_SSCO=y : Enable SSC0 driver support
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-19 19:58:53 +02:00
|
|
|
|
System Type -> SSC0 Configuration
|
2014-09-17 19:47:00 +02:00
|
|
|
|
CONFIG_SAMA5D4_MB_REVE=y : No WM8904 for Rev C version of the board
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_SAMA5_SSC_MAXINFLIGHT=16
|
|
|
|
|
|
CONFIG_SAMA5_SSC0_DATALEN=16
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-31 19:14:57 +02:00
|
|
|
|
Device Drivers -> I2C Driver Support
|
|
|
|
|
|
CONFIG_I2C=y : Enable I2C support
|
2014-09-17 19:47:00 +02:00
|
|
|
|
CONFIG_I2C_TRANSFER=y : Support the transfer method
|
2014-07-31 19:14:57 +02:00
|
|
|
|
CONFIG_I2C_RESET=n : (Maybe y, if you have bus problems)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
System Type -> SSC Configuration
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_SAMA5_SSC_MAXINFLIGHT=16 : Up to 16 pending DMA transfers
|
|
|
|
|
|
CONFIG_SAMA5_SSC0_DATALEN=16 : 16-bit data
|
2014-07-20 02:52:58 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_RX=y : Support a receiver (although it is not used!)
|
2014-08-01 20:25:31 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_RX_RKINPUT=y : Receiver gets clock the RK0 input
|
|
|
|
|
|
CONFIG_SAMA5_SSC0_RX_FSLEN=1 : Minimal frame sync length
|
2014-08-01 22:10:37 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_RX_STTDLY=1 : Start delay
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_TX=y : Support a transmitter
|
2014-08-01 22:10:37 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_TX_RXCLK=y : Transmitter gets clock the RXCLCK
|
2014-08-01 20:25:31 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_TX_FSLEN=0 : Disable frame synch generation
|
2014-08-01 22:10:37 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_TX_STTDLY=1 : Start delay
|
2014-08-01 20:25:31 +02:00
|
|
|
|
CONFIG_SAMA5_SSC0_TX_TKOUTPUT_NONE=y : No output
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-09-17 19:47:00 +02:00
|
|
|
|
Audio Support
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_AUDIO=y : Audio support needed
|
|
|
|
|
|
CONFIG_AUDIO_FORMAT_PCM=y : Only PCM files are supported
|
2014-07-20 17:17:36 +02:00
|
|
|
|
CONFIG_AUDIO_NUM_BUFFERS=8 : Number of audio buffers
|
|
|
|
|
|
CONFIG_AUDIO_BUFFER_NUMBYTES=8192 : Audio buffer size
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Drivers -> Audio
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_I2S=y : General I2S support
|
|
|
|
|
|
CONFIG_AUDIO_DEVICES=y : Audio device support
|
|
|
|
|
|
CONFIG_AUDIO_WM8904=y : Build WM8904 driver character driver
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Board Selection
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_SAMA5D4EK_WM8904_I2CFREQUENCY=400000
|
2014-08-04 23:36:16 +02:00
|
|
|
|
CONFIG_SAMA5D4EK_WM8904_SRCMAIN=y : WM8904 MCLK is the SAMA5D Main Clock
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
Library Routines
|
2014-07-19 19:58:53 +02:00
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y : MW8904 driver needs work queue support
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-19 19:58:53 +02:00
|
|
|
|
I2S Loopback Test
|
|
|
|
|
|
-----------------
|
2014-07-18 01:57:57 +02:00
|
|
|
|
|
2014-07-19 19:58:53 +02:00
|
|
|
|
The I2S driver was verified using a special I2C character driver (at
|
|
|
|
|
|
nuttx/drivers/audio/i2schar.c) and a test driver at apps/examples/i2schar.
|
|
|
|
|
|
The I2S driver was verified in loopback mode with no audio device. That
|
|
|
|
|
|
test case has never been exercised on the SAMA454-EK. See the README.txt
|
|
|
|
|
|
file at SAMA5D4-EK for information about how you might implement this test
|
|
|
|
|
|
for the SAMA5D4-EK.
|
2014-07-18 01:57:57 +02:00
|
|
|
|
|
2014-07-20 17:17:36 +02:00
|
|
|
|
The NxPlayer
|
|
|
|
|
|
------------
|
|
|
|
|
|
|
|
|
|
|
|
The NxPlayer is a audio library and command line application for playing
|
|
|
|
|
|
audio file. The NxPlayer can be found at apps/system/nxplayer. If you
|
|
|
|
|
|
would like to add the NxPlayer, here are some recommended configuration
|
2014-07-23 23:20:54 +02:00
|
|
|
|
settings.
|
|
|
|
|
|
|
2014-07-31 19:14:57 +02:00
|
|
|
|
First of all, the NxPlayer depends on the NuttX audio subsystem. See the
|
|
|
|
|
|
"WM8904 Configuration" above for an example of how the audio subsystem is
|
|
|
|
|
|
configured to use the WM8904 CODED with PCM decoding. Or, for testing
|
|
|
|
|
|
purposes, here is how might want to configure NULL, do-nothing audio
|
|
|
|
|
|
device:
|
2014-07-23 23:20:54 +02:00
|
|
|
|
|
|
|
|
|
|
Audio Support ->
|
|
|
|
|
|
CONFIG_AUDIO=y
|
|
|
|
|
|
CONFIG_AUDIO_NUM_BUFFERS=4
|
|
|
|
|
|
CONFIG_AUDIO_BUFFER_NUMBYTES=8192
|
|
|
|
|
|
CONFIG_AUDIO_FORMAT_PCM=y
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_AUDIO_NULL=y
|
|
|
|
|
|
CONFIG_AUDIO_NULL_BUFFER_SIZE=8192
|
|
|
|
|
|
CONFIG_AUDIO_NULL_MSG_PRIO=1
|
|
|
|
|
|
CONFIG_AUDIO_NULL_WORKER_STACKSIZE=768
|
|
|
|
|
|
|
|
|
|
|
|
Then the NxPlayer can be enabled as follows:
|
2014-07-20 17:17:36 +02:00
|
|
|
|
|
|
|
|
|
|
System Libraries and NSH Add-Ons -> NxPlayer media player / command line ->
|
|
|
|
|
|
CONFIG_SYSTEM_NXPLAYER=y : Build the NxPlayer library
|
2014-07-31 19:14:57 +02:00
|
|
|
|
CONFIG_NXPLAYER_PLAYTHREAD_STACKSIZE=1500 : Size of the audio player stack
|
2014-07-20 17:17:36 +02:00
|
|
|
|
CONFIG_NXPLAYER_COMMAND_LINE=y : Build command line application
|
|
|
|
|
|
CONFIG_NXPLAYER_INCLUDE_HELP=y : Includes a help command
|
|
|
|
|
|
CONFIG_NXPLAYER_INCLUDE_DEVICE_SEARCH=n : (Since there is only one audio device)
|
|
|
|
|
|
CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE=y : Only one audio device is supported
|
2014-07-23 23:20:54 +02:00
|
|
|
|
CONFIG_NXPLAYER_FMT_FROM_EXT=y : (Since only PCM is supported)
|
2014-07-31 19:14:57 +02:00
|
|
|
|
CONFIG_NXPLAYER_FMT_FROM_HEADER=n : (Since only PCM is supported)
|
2014-07-20 17:17:36 +02:00
|
|
|
|
CONFIG_NXPLAYER_INCLUDE_MEDIADIR=y : Specify a media directory
|
|
|
|
|
|
CONFIG_NXPLAYER_DEFAULT_MEDIADIR="/mnt/sdcard" : See below
|
|
|
|
|
|
CONFIG_NXPLAYER_RECURSIVE_MEDIA_SEARCH=y : Search all sub-directories
|
|
|
|
|
|
CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET=y : Add support for reset command
|
|
|
|
|
|
|
|
|
|
|
|
You must include the full path to the location where NxPlayer can find the
|
|
|
|
|
|
media files. That path is given by CONFIG_NXPLAYER_DEFAULT_MEDIADIR.
|
|
|
|
|
|
Here I use the example "/mnt/scard". That is a location where you could,
|
|
|
|
|
|
for example, mount an MMC/SD card driver.
|
|
|
|
|
|
|
2014-07-06 01:12:14 +02:00
|
|
|
|
TM7000 LCD/Touchscreen
|
|
|
|
|
|
======================
|
|
|
|
|
|
|
|
|
|
|
|
The TM7000 LCD is available for the SAMA5D4-EK. See documentation
|
|
|
|
|
|
available on the Precision Design Associates website:
|
|
|
|
|
|
http://www.pdaatl.com/doc/tm7000.pdf
|
|
|
|
|
|
|
2014-07-06 17:43:26 +02:00
|
|
|
|
The TM7000 features:
|
2014-07-06 01:12:14 +02:00
|
|
|
|
|
|
|
|
|
|
- 7 inch LCD at 800x480 18-bit RGB resolution and white backlight
|
|
|
|
|
|
- Projected Capacitive Multi-Touch Controller based on the Atmel
|
|
|
|
|
|
MXT768E maXTouch<63> IC
|
|
|
|
|
|
- 4 Capacitive <20>Navigation<6F> Keys available via an Atmel AT42QT1070
|
|
|
|
|
|
QTouch<63> Button Sensor IC
|
|
|
|
|
|
- 200 bytes of non-volatile serial EEPROM
|
|
|
|
|
|
|
2014-07-10 22:00:56 +02:00
|
|
|
|
NOTE: It appears that my TM7000 differs slightly from the version
|
|
|
|
|
|
described in the tm7000.pdf file: That document claims that the
|
|
|
|
|
|
hardware interface to the LCD is 18-bit RGB666; but the one that
|
|
|
|
|
|
I have is certainly 24-bit RGB888. If you have LCD issues, you may
|
|
|
|
|
|
need to tweak some of the settings in configs/sama5d4-ek/include/board.h.
|
|
|
|
|
|
|
2014-07-06 17:43:26 +02:00
|
|
|
|
Jumper JP2 selects either the EMAC1 or the LCD by controlling the
|
|
|
|
|
|
the LCD_ETH1_CONFIG signal on the board.
|
|
|
|
|
|
|
|
|
|
|
|
- JP2 open, LCD_ETH1_CONFIG pulled high:
|
|
|
|
|
|
|
|
|
|
|
|
LCD_ETH1_CONFIG=1: LCD 5v enable(LCD_DETECT#=0); ETH1 disable
|
|
|
|
|
|
|
|
|
|
|
|
- JP2 closed, LCD_ETH1_CONFIG grounded:
|
|
|
|
|
|
|
|
|
|
|
|
LCD_ETH1_CONFIG=0: LCD 5v disable; ETH1 enable
|
|
|
|
|
|
|
2014-07-08 20:46:18 +02:00
|
|
|
|
LCD Connector
|
|
|
|
|
|
-------------
|
|
|
|
|
|
|
|
|
|
|
|
------------------------- ----------------------- --------
|
|
|
|
|
|
SAMA5D4-EK TM7000 FUNCTION
|
|
|
|
|
|
------------------------- ----------------------- --------
|
|
|
|
|
|
LCD_PE24 J9 pin 5 ~MXT_CHG J4 pin 5 MXT
|
|
|
|
|
|
LCD_PE25 J9 pin 6 ~QT_CHG J4 pin 6 QT
|
|
|
|
|
|
LCD_TWCK0_PA31 J9 pin 7 I2C SCL J4 pin 7 MXT,QT
|
|
|
|
|
|
LCD_TWD0_PA30 J9 pin 8 I2C SDA J4 pin 8 MXT,QT
|
|
|
|
|
|
LCD_DAT0_PA0 J9 pin 18 LCD_DATA_0 J4 pin 18 LCD
|
|
|
|
|
|
LCD_DAT1_PA1 J9 pin 19 LCD_DATA_1 J4 pin 19 LCD
|
|
|
|
|
|
LCD_DAT2_PA2 J9 pin 20 LCD_DATA_2 J4 pin 20 LCD
|
|
|
|
|
|
LCD_DAT3_PA3 J9 pin 21 LCD_DATA_3 J4 pin 21 LCD
|
|
|
|
|
|
LCD_DAT4_PA4 J9 pin 22 LCD_DATA_4 J4 pin 22 LCD
|
|
|
|
|
|
LCD_DAT3_PA5 J9 pin 23 LCD_DATA_5 J4 pin 23 LCD
|
|
|
|
|
|
LCD_DAT6_PA6 J9 pin 24 LCD_DATA_6 J4 pin 24 LCD
|
|
|
|
|
|
LCD_DAT7_PA7 J9 pin 25 LCD_DATA_7 J4 pin 25 LCD
|
|
|
|
|
|
LCD_DAT8_PA8 J9 pin 26 LCD_DATA_8 J4 pin 26 LCD
|
|
|
|
|
|
LCD_DAT9_PA9 J9 pin 27 LCD_DATA_9 J4 pin 27 LCD
|
|
|
|
|
|
LCD_DAT10_PA10 J9 pin 28 LCD_DATA_10 J4 pin 28 LCD
|
2014-07-10 20:03:10 +02:00
|
|
|
|
LCD_DAT11_PA11 J9 pin 29 LCD_DATA_11 J4 pin 29 LCD
|
2014-07-08 20:46:18 +02:00
|
|
|
|
LCD_DAT12_PA12 J9 pin 16 LCD_DATA_12 J4 pin 16 LCD
|
|
|
|
|
|
LCD_DAT13_PA13 J9 pin 12 LCD_DATA_13 J4 pin 12 LCD
|
|
|
|
|
|
LCD_DAT14_PA14 J9 pin 14 LCD_DATA_14 J4 pin 14 LCD
|
|
|
|
|
|
LCD_DAT15_PA15 J9 pin 10 LCD_DATA_15 J4 pin 10 LCD
|
|
|
|
|
|
------------------------- ----------------------- --------
|
|
|
|
|
|
LCD_DAT16_PA16 J10 pin 5 LCD_DATA_16 J5 pin 5 LCD
|
|
|
|
|
|
LCD_DAT17_PA17 J10 pin 6 LCD_DATA_17 J5 pin 6 LCD
|
|
|
|
|
|
LCD_DAT18_PA18 J10 pin 7 LCD_DATA_18 J5 pin 7 LCD
|
|
|
|
|
|
LCD_DAT19_PA19 J10 pin 8 LCD_DATA_19 J5 pin 8 LCD
|
|
|
|
|
|
LCD_DAT20_PA20 J10 pin 9 LCD_DATA_20 J5 pin 9 LCD
|
|
|
|
|
|
LCD_DAT21_PA21 J10 pin 10 LCD_DATA_21 J5 pin 10 LCD
|
|
|
|
|
|
LCD_DAT22_PA22 J10 pin 11 LCD_DATA_22 J5 pin 11 LCD
|
|
|
|
|
|
LCD_DAT23_PA23 J10 pin 12 LCD_DATA_23 J5 pin 12 LCD
|
|
|
|
|
|
LCD_DISP_PA25 J10 pin 15 DISP J5 pin 15 LCD (Display Enable)
|
|
|
|
|
|
LCD_PWM_PA24 J10 pin 16 Backlight PWM J5 pin 16 LCD
|
|
|
|
|
|
LCD_VSYNC_PA26 J10 pin 17 VSYNC J5 pin 17 LCD
|
|
|
|
|
|
LCD_HSYNC_PA27 J10 pin 18 HSYNC J5 pin 18 LCD
|
|
|
|
|
|
LCD_DEN_PA29 J10 pin 19 DE J5 pin 19 LCD
|
|
|
|
|
|
LCD_PCK_PA28 J10 pin 20 PCLK J5 pin 20 LCD
|
|
|
|
|
|
AD0_XP J10 pin 23 N/C J5 pin 23 N/A
|
|
|
|
|
|
AD1_XM J10 pin 24 N/C J5 pin 24 N/A
|
|
|
|
|
|
AD2_YP J10 pin 25 N/C J5 pin 25 N/A
|
|
|
|
|
|
AD3_YM J10 pin 26 N/C J5 pin 26 N/A
|
|
|
|
|
|
AD4_LR J10 pin 27 N/C J5 pin 27 N/A
|
|
|
|
|
|
1Wire_PE28 J10 pin 28 1-Wire J5 pin 28 EE
|
|
|
|
|
|
LCD_SPI1_SO J10 pin 31 N/C J5 pin 31 N/A
|
|
|
|
|
|
LCD_SPI1_SI J10 pin 32 N/C J5 pin 32 N/A
|
|
|
|
|
|
LCD_SPI1_CLK J10 pin 33 N/C J5 pin 33 N/A
|
|
|
|
|
|
LCD_SPI1_CS2 J10 pin 34 N/C J5 pin 34 N/A
|
|
|
|
|
|
EN_PWRLCD J10 pin 35 N/C J5 pin 35 N/A
|
|
|
|
|
|
LCD_DETECT# J10 pin 36 LCD Presence J5 pin 36 All
|
|
|
|
|
|
RXD4_PE26 J10 pin 37 N/C J5 pin 37 N/A
|
|
|
|
|
|
XD4_PE27 J10 pin 38 N/C J5 pin 38 N/A
|
|
|
|
|
|
------------------------- ----------------------- --------
|
|
|
|
|
|
|
|
|
|
|
|
LCD Configuration
|
|
|
|
|
|
-----------------
|
|
|
|
|
|
|
|
|
|
|
|
Here is a configuration that enables the LCD with backlight in RGB565
|
|
|
|
|
|
color mode. Notice that this configuration sets up an LCD framebuffer of
|
|
|
|
|
|
size 6,291,456 (0x0060:0000, 6MiB) at the end of DRAM. DRAM begins at
|
|
|
|
|
|
address 0x2000:0000 and has size 268,435,456 (0x1000:0000); The
|
|
|
|
|
|
framebuffer the begins at 0x2000:0000 + 0x1000:0000 - 0x0060:0000 =
|
|
|
|
|
|
0x2fa0:0000.
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral Support ->
|
|
|
|
|
|
CONFIG_SAMA5_LCDC=y : Enable LCDC
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> LCDC Configuration ->
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_BACKLIGHT=y : With backlight
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_DEFBACKLIGHT=0xc8
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_BACKCOLOR=0x7b5d : Color to use when clearing the display
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_FB_VBASE=0x2fa00000 : Set aside the framebuffer
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_FB_PBASE=0x2fa00000
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_FB_SIZE=6291456
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_BASE_ROT0=y : No rotation
|
|
|
|
|
|
CONFIG_SAMA5_LCDC_BASE_RGB565=y : RGB565 color format
|
|
|
|
|
|
|
|
|
|
|
|
This framebuffer size must then be subtracted from the memory available in the
|
|
|
|
|
|
heap (0x3000:0000 - 0x0058:0000 = 0x2fa8:0000):
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> Heap Configuration ->
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_RESERVE=y : Reserve DRAM for the framebuffer
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_HEAP_END=0x2fa00000 : End of DRAM heap (excludes framebuffer)
|
|
|
|
|
|
|
|
|
|
|
|
There are several simple graphics examples under apps/examples/ that can
|
|
|
|
|
|
be use to verify the LCD: nx, nxhello, nximage, nxlines, nxtext. See
|
|
|
|
|
|
apps/examples/README.txt for information about configuring these examples.
|
|
|
|
|
|
|
|
|
|
|
|
For example, these settings will enable the apps/examples/nx example. The
|
|
|
|
|
|
NX example is a simple test using the NuttX graphics system (NX). This
|
|
|
|
|
|
test case focuses on general window controls, movement, mouse and keyboard
|
|
|
|
|
|
input. It requires no user interaction.
|
|
|
|
|
|
|
|
|
|
|
|
First you need to enable NuttX graphics support:
|
|
|
|
|
|
|
|
|
|
|
|
Graphics Support ->
|
|
|
|
|
|
CONFIG_NX=y : Enable NX graphics
|
|
|
|
|
|
CONFIG_NX_NPLANES=1 : 1 color plane
|
|
|
|
|
|
CONFIG_NX_PACKEDMSFIRST=y
|
|
|
|
|
|
|
|
|
|
|
|
Graphics Support -> Supported Pixel Depths ->
|
|
|
|
|
|
CONFIG_NX_DISABLE_1BPP=y : Disable all resolutions except 16 bpp
|
|
|
|
|
|
CONFIG_NX_DISABLE_2BPP=y
|
|
|
|
|
|
CONFIG_NX_DISABLE_4BPP=y
|
|
|
|
|
|
CONFIG_NX_DISABLE_8BPP=y
|
|
|
|
|
|
CONFIG_NX_DISABLE_24BPP=y
|
|
|
|
|
|
CONFIG_NX_DISABLE_32BPP=y
|
|
|
|
|
|
|
|
|
|
|
|
Graphics Support -> Input Devices ->
|
2014-07-30 22:26:50 +02:00
|
|
|
|
CONFIG_NX_XYINPUT=y : Build in mouse/touchscreen support (not used)
|
2014-07-08 20:46:18 +02:00
|
|
|
|
CONFIG_NX_KBD=y : Build in keyboard support (not used)
|
|
|
|
|
|
|
|
|
|
|
|
Graphics Support -> Framed Window Borders ->
|
|
|
|
|
|
CONFIG_NXTK_BORDERWIDTH=4 : Framed window configuration
|
|
|
|
|
|
CONFIG_NXTK_DEFAULT_BORDERCOLORS=y
|
|
|
|
|
|
|
|
|
|
|
|
Graphics Support -> Font Selections ->
|
|
|
|
|
|
CONFIG_NXFONTS_CHARBITS=7 : Font configuration
|
|
|
|
|
|
CONFIG_NXFONT_SERIF22X28B=y
|
|
|
|
|
|
|
|
|
|
|
|
Then you can enable the NX example:
|
|
|
|
|
|
|
|
|
|
|
|
Application Configuration -> Examples -> NX graphics example
|
|
|
|
|
|
CONFIG_EXAMPLES_NX=y : Enable the NX example
|
|
|
|
|
|
CONFIG_EXAMPLES_NX_VPLANE=0 : Use color plane 0
|
|
|
|
|
|
CONFIG_EXAMPLES_NX_DEVNO=0 : Use device zero
|
|
|
|
|
|
CONFIG_EXAMPLES_NX_DEFAULT_COLORS=y : Use default colors
|
|
|
|
|
|
CONFIG_EXAMPLES_NX_DEFAULT_FONT=y : Use default fonts
|
|
|
|
|
|
CONFIG_EXAMPLES_NX_BPP=16 : Use 16 bpp
|
|
|
|
|
|
CONFIG_EXAMPLES_NX_TOOLBAR_HEIGHT=16 : Configure toolbar
|
|
|
|
|
|
|
2014-07-06 17:43:26 +02:00
|
|
|
|
maXTouch
|
|
|
|
|
|
--------
|
2014-07-06 01:12:14 +02:00
|
|
|
|
Both the MXT768E and the AT42QT1070 are I2C devices with interrupting
|
|
|
|
|
|
PIO pins:
|
|
|
|
|
|
|
|
|
|
|
|
------------------------ -----------------
|
|
|
|
|
|
SAMA5D4-EK TM7000
|
|
|
|
|
|
------------------------ -----------------
|
|
|
|
|
|
J9 pin 5 LCD_PE24 J4 pin 5 ~CHG_mxt
|
|
|
|
|
|
J9 pin 6 LCD_PE25 J4 pin 6 ~CHG_QT
|
|
|
|
|
|
J9 pin 7 LCD_TWCK0_PA31 J4 pin 7 SCL_0
|
|
|
|
|
|
J9 pin 8 LCD_TWD0_PA30 J4 pin 8 SDA_0
|
|
|
|
|
|
------------------------ -----------------
|
|
|
|
|
|
|
|
|
|
|
|
The schematic indicates the the MXT468E address is 0x4c/0x4d.
|
2014-07-06 17:43:26 +02:00
|
|
|
|
|
|
|
|
|
|
Here are the configuration settings the configuration settings that will
|
|
|
|
|
|
enable the maXTouch touchscreen controller:
|
|
|
|
|
|
|
|
|
|
|
|
System Type
|
|
|
|
|
|
CONFIG_SAMA5_TWI0=y : Enable the TWI0 peripheral
|
|
|
|
|
|
CONFIG_SAMA5_PIO_IRQ=y : Support for PIOE interrupts
|
|
|
|
|
|
CONFIG_SAMA5_PIOE_IRQ=y
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers
|
|
|
|
|
|
CONFIG_INPUT=y : Input device support
|
|
|
|
|
|
CONFIG_INPUT_MXT=y : Enable maXTouch input device
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
Optionally, use CONFIG_ARCH_HAVE_I2CRESET=y if you have issues
|
|
|
|
|
|
with other I2C devices on board locking up the I2C bus.
|
|
|
|
|
|
|
2014-07-06 17:43:26 +02:00
|
|
|
|
Board Configuration
|
|
|
|
|
|
CONFIG_SAMA5D4EK_MXT_DEVMINOR=0
|
|
|
|
|
|
CONFIG_SAMA5D4EK_MXT_I2CFREQUENCY=100000
|
|
|
|
|
|
|
|
|
|
|
|
There is a test at apps/examples/touchscreen that can be enabled to
|
|
|
|
|
|
build in a touchscreen test:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_EXAMPLES_TOUCHSCREEN=y
|
|
|
|
|
|
CONFIG_EXAMPLES_TOUCHSCREEN_ARCHINIT=y
|
|
|
|
|
|
CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH="/dev/input0"
|
|
|
|
|
|
CONFIG_EXAMPLES_TOUCHSCREEN_MINOR=0
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
Usage is like:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> tc [<number-of-touches>]
|
|
|
|
|
|
|
2014-07-06 17:43:26 +02:00
|
|
|
|
QTouch Button Sensor
|
|
|
|
|
|
--------------------
|
|
|
|
|
|
To be provided.
|
|
|
|
|
|
|
|
|
|
|
|
LCD
|
|
|
|
|
|
---
|
|
|
|
|
|
To be provided.
|
|
|
|
|
|
|
2014-08-10 19:34:20 +02:00
|
|
|
|
Tickless OS
|
|
|
|
|
|
===========
|
|
|
|
|
|
|
2014-08-10 21:11:31 +02:00
|
|
|
|
Background
|
|
|
|
|
|
----------
|
2014-08-10 19:34:20 +02:00
|
|
|
|
By default, a NuttX configuration uses a periodic timer interrupt that
|
2015-12-02 15:37:42 +01:00
|
|
|
|
drives all system timing. The timer is provided by architecture-specific
|
2014-08-10 19:34:20 +02:00
|
|
|
|
code that calls into NuttX at a rate controlled by CONFIG_USEC_PER_TICK.
|
|
|
|
|
|
The default value of CONFIG_USEC_PER_TICK is 10000 microseconds which
|
|
|
|
|
|
corresponds to a timer interrupt rate of 100 Hz.
|
|
|
|
|
|
|
|
|
|
|
|
An option is to configure NuttX to operation in a "tickless" mode. Some
|
|
|
|
|
|
limitations of default system timer are, in increasing order of
|
|
|
|
|
|
importance:
|
|
|
|
|
|
|
|
|
|
|
|
- Overhead: Although the CPU usage of the system timer interrupt at 100Hz
|
|
|
|
|
|
is really very low, it is still mostly wasted processing time. One most
|
|
|
|
|
|
timer interrupts, there is really nothing that needs be done other than
|
|
|
|
|
|
incrementing the counter.
|
|
|
|
|
|
- Resolution: Resolution of all system timing is also determined by
|
|
|
|
|
|
CONFIG_USEC_PER_TICK. So nothing that be time with resolution finer than
|
|
|
|
|
|
10 milliseconds be default. To increase this resolution,
|
|
|
|
|
|
CONFIG_USEC_PER_TICK an be reduced. However, then the system timer
|
|
|
|
|
|
interrupts use more of the CPU bandwidth processing useless interrupts.
|
|
|
|
|
|
- Power Usage: But the biggest issue is power usage. When the system is
|
|
|
|
|
|
IDLE, it enters a light, low-power mode (for ARMs, this mode is entered
|
|
|
|
|
|
with the wfi or wfe instructions for example). But each interrupt
|
|
|
|
|
|
awakens the system from this low power mode. Therefore, higher rates
|
|
|
|
|
|
of interrupts cause greater power consumption.
|
|
|
|
|
|
|
|
|
|
|
|
The so-called Tickless OS provides one solution to issue. The basic
|
|
|
|
|
|
concept here is that the periodic, timer interrupt is eliminated and
|
|
|
|
|
|
replaced with a one-shot, interval timer. It becomes event driven
|
|
|
|
|
|
instead of polled: The default system timer is a polled design. On
|
|
|
|
|
|
each interrupt, the NuttX logic checks if it needs to do anything
|
|
|
|
|
|
and, if so, it does it.
|
|
|
|
|
|
|
|
|
|
|
|
Using an interval timer, one can anticipate when the next interesting
|
|
|
|
|
|
OS event will occur, program the interval time and wait for it to fire.
|
|
|
|
|
|
When the interval time fires, then the scheduled activity is performed.
|
|
|
|
|
|
|
2014-08-10 21:11:31 +02:00
|
|
|
|
Configuration
|
|
|
|
|
|
-------------
|
2014-08-10 19:34:20 +02:00
|
|
|
|
The following configuration options will enable support for the Tickless
|
|
|
|
|
|
OS for the SAMA5D platforms using TC0 channels 0-3 (other timers or
|
|
|
|
|
|
timer channels could be used making the obvious substitutions):
|
|
|
|
|
|
|
|
|
|
|
|
RTOS Features -> Clocks and Timers
|
|
|
|
|
|
CONFIG_SCHED_TICKLESS=y : Configures the RTOS in tickless mode
|
2014-08-12 18:01:12 +02:00
|
|
|
|
CONFIG_SCHED_TICKLESS_ALARM=n : (option not implemented)
|
2014-08-10 19:34:20 +02:00
|
|
|
|
|
|
|
|
|
|
System Type -> SAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_TC0=y : Enable TC0 (TC channels 0-3
|
|
|
|
|
|
|
|
|
|
|
|
System Type -> Timer/counter Configuration
|
|
|
|
|
|
CONFIG_SAMA5_ONESHOT=y : Enables one-shot timer wrapper
|
|
|
|
|
|
CONFIG_SAMA5_FREERUN=y : Enabled free-running timer wrapper
|
|
|
|
|
|
CONFIG_SAMA5_TICKLESS_ONESHOT=0 : Selects TC0 channel 0 for the one-shot
|
|
|
|
|
|
CONFIG_SAMA5_TICKLESS_FREERUN=1 : Selects TC0 channel 1 for the free-
|
|
|
|
|
|
: running timer
|
|
|
|
|
|
|
2015-12-03 01:54:17 +01:00
|
|
|
|
The resolution of the clock is provided by the CONFIG_USEC_PER_TICK
|
|
|
|
|
|
setting in the configuration file.
|
|
|
|
|
|
|
2014-08-11 04:02:45 +02:00
|
|
|
|
NOTE: In most cases, the slow clock will be used as the timer/counter
|
|
|
|
|
|
input. You should enable the 32.768KHz crystal for the slow clock by
|
|
|
|
|
|
calling sam_sckc_enable(). Otherwise, you will be doing all system
|
2014-08-11 22:29:43 +02:00
|
|
|
|
timing using the RC clock! UPDATE: This will now be selected by default
|
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|
|
when you configure for TICKLESS support.
|
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|
|
2015-12-03 16:52:50 +01:00
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|
The slow clock has a resolution of about 30.518 microseconds. Ideally,
|
|
|
|
|
|
the value of CONFIG_USEC_PER_TICK should be the exact clock resolution.
|
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|
|
Otherwise there will be cumulative timing inaccuracies. But a choice
|
2015-12-03 01:54:17 +01:00
|
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|
choice of:
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|
2015-12-03 16:52:50 +01:00
|
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|
|
CONFIG_USEC_PER_TICK=31
|
2015-12-03 01:54:17 +01:00
|
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|
|
2015-12-03 16:52:50 +01:00
|
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|
will have an error of 0.6% and will have inaccuracies that will
|
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|
|
|
effect the time due to long term error build-up.
|
2015-12-03 01:54:17 +01:00
|
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|
2015-12-03 16:52:50 +01:00
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UPDATE: As of this writing (2015-12-03), the Tickless support is
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|
|
functional. However, there are inaccuracies in delays. For example,
|
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|
|
nsh> sleep 10
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|
|
results in a delay of maybe 5.4 seconds. But the timing accuracy is
|
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|
|
correct if all competing uses of the interval timer are disabled (mostly
|
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|
|
|
|
from the high priority work queue). Therefore, I conclude that this
|
|
|
|
|
|
inaccuracy is due to the inaccuracies in the representation of the clock
|
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|
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|
|
rate. 30.518 usec cannot be represented accurately. Each timing
|
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|
|
|
|
calculation results in a small error. When the interval timer is very
|
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|
|
|
busy, long delays will be divided into many small pieces and each small
|
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|
|
piece has a large error in the calculation. The cumulative error is the
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|
|
cause of the problem.
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|
|
2014-08-10 21:11:31 +02:00
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|
SAMA5 Timer Usage
|
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|
|
-----------------
|
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|
This current implementation uses two timers: A one-shot timer to
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|
|
provide the timed events and a free running timer to provide the current
|
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|
|
|
|
time. Since timers are a limited resource, that could be an issue on
|
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|
|
some systems.
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|
We could do the job with a single timer if we were to keep the single
|
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|
|
timer in a free-running at all times. The SAMA5 timer/counters have
|
|
|
|
|
|
32-bit counters with the capability to generate a compare interrupt when
|
|
|
|
|
|
the timer matches a compare value but also to continue counting without
|
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|
|
|
|
stopping (giving another, different interrupt when the timer rolls over
|
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|
|
|
from 0xffffffff to zero). So we could potentially just set the compare
|
|
|
|
|
|
at the number of ticks you want PLUS the current value of timer. Then
|
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|
|
|
|
you could have both with a single timer: An interval timer and a free-
|
2014-08-12 18:01:12 +02:00
|
|
|
|
running counter with the same timer! In this case, you would want to
|
|
|
|
|
|
to set CONFIG_SCHED_TICKLESS_ALARM in the NuttX configuration.
|
2014-08-10 21:11:31 +02:00
|
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|
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|
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|
|
Patches are welcome!
|
|
|
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|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
SAMA4D4-EK Configuration Options
|
|
|
|
|
|
=================================
|
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|
|
CONFIG_ARCH - Identifies the arch/ subdirectory. This should
|
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|
|
|
be set to:
|
|
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|
|
CONFIG_ARCH="arm"
|
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|
|
|
|
CONFIG_ARCH_family - For use in C code:
|
|
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|
|
|
|
|
|
|
|
CONFIG_ARCH_ARM=y
|
|
|
|
|
|
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|
|
CONFIG_ARCH_architecture - For use in C code:
|
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|
|
|
|
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|
|
CONFIG_ARCH_CORTEXA5=y
|
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|
|
|
|
|
|
|
|
CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
|
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|
|
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|
|
CONFIG_ARCH_CHIP="sama5"
|
|
|
|
|
|
|
|
|
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|
|
CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
|
|
|
|
|
|
chip:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_CHIP_SAMA5=y
|
|
|
|
|
|
CONFIG_ARCH_CHIP_ATSAMA5D44=y
|
|
|
|
|
|
|
|
|
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|
|
CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
|
|
|
|
|
|
hence, the board that supports the particular chip or SoC.
|
|
|
|
|
|
|
|
|
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|
|
CONFIG_ARCH_BOARD="sama5d4-ek" (for the SAMA4D4-EK development board)
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_BOARD_name - For use in C code
|
|
|
|
|
|
|
|
|
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|
|
CONFIG_ARCH_BOARD_SAMA5D4_EK=y
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
|
|
|
|
|
|
of delay loops
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ENDIAN_BIG - define if big endian (default is little
|
|
|
|
|
|
endian)
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_RAM_SIZE - Describes the installed DRAM (SRAM in this case):
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_RAM_SIZE=0x0002000 (128Kb)
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_RAM_START - The physical start address of installed DRAM
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_RAM_START=0x20000000
|
|
|
|
|
|
|
2014-06-27 01:04:53 +02:00
|
|
|
|
CONFIG_RAM_VSTART - The virtual start address of installed DRAM
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
CONFIG_RAM_VSTART=0x20000000
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that
|
|
|
|
|
|
have LEDs
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
|
|
|
|
|
|
stack. If defined, this symbol is the size of the interrupt
|
|
|
|
|
|
stack in bytes. If not defined, the user task stacks will be
|
|
|
|
|
|
used during interrupt handling.
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to board architecture.
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
|
|
|
|
|
|
cause a 100 second delay during boot-up. This 100 second delay
|
|
|
|
|
|
serves no purpose other than it allows you to calibrate
|
|
|
|
|
|
CONFIG_ARCH_LOOPSPERMSEC. You simply use a stop watch to measure
|
|
|
|
|
|
the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
|
|
|
|
|
|
the delay actually is 100 seconds.
|
|
|
|
|
|
|
|
|
|
|
|
Individual subsystems can be enabled:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_DBGU - Debug Unit
|
|
|
|
|
|
CONFIG_SAMA5_PIT - Periodic Interval Timer
|
|
|
|
|
|
CONFIG_SAMA5_WDT - Watchdog timer
|
|
|
|
|
|
CONFIG_SAMA5_HSMC - Multi-bit ECC
|
|
|
|
|
|
CONFIG_SAMA5_SMD - SMD Soft Modem
|
|
|
|
|
|
CONFIG_SAMA5_USART0 - USART 0
|
|
|
|
|
|
CONFIG_SAMA5_USART1 - USART 1
|
|
|
|
|
|
CONFIG_SAMA5_USART2 - USART 2
|
|
|
|
|
|
CONFIG_SAMA5_USART3 - USART 3
|
|
|
|
|
|
CONFIG_SAMA5_UART0 - UART 0
|
|
|
|
|
|
CONFIG_SAMA5_UART1 - UART 1
|
|
|
|
|
|
CONFIG_SAMA5_TWI0 - Two-Wire Interface 0
|
|
|
|
|
|
CONFIG_SAMA5_TWI1 - Two-Wire Interface 1
|
|
|
|
|
|
CONFIG_SAMA5_TWI2 - Two-Wire Interface 2
|
|
|
|
|
|
CONFIG_SAMA5_HSMCI0 - High Speed Multimedia Card Interface 0
|
|
|
|
|
|
CONFIG_SAMA5_HSMCI1 - High Speed Multimedia Card Interface 1
|
|
|
|
|
|
CONFIG_SAMA5_SPI0 - Serial Peripheral Interface 0
|
|
|
|
|
|
CONFIG_SAMA5_SPI1 - Serial Peripheral Interface 1
|
|
|
|
|
|
CONFIG_SAMA5_TC0 - Timer Counter 0 (ch. 0, 1, 2)
|
|
|
|
|
|
CONFIG_SAMA5_TC1 - Timer Counter 1 (ch. 3, 4, 5)
|
|
|
|
|
|
CONFIG_SAMA5_PWM - Pulse Width Modulation Controller
|
|
|
|
|
|
CONFIG_SAMA5_ADC - Touch Screen ADC Controller
|
2014-06-29 19:26:41 +02:00
|
|
|
|
CONFIG_SAMA5_XDMAC0 - XDMA Controller 0
|
|
|
|
|
|
CONFIG_SAMA5_XDMAC1 - XDMA Controller 1
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_SAMA5_UHPHS - USB Host High Speed
|
|
|
|
|
|
CONFIG_SAMA5_UDPHS - USB Device High Speed
|
2014-06-29 19:26:41 +02:00
|
|
|
|
CONFIG_SAMA5_EMAC0 - Ethernet MAC 0 (GMAC0)
|
|
|
|
|
|
CONFIG_SAMA5_EMAC1 - Ethernet MAC 1 (GMAC1)
|
2014-06-06 20:37:36 +02:00
|
|
|
|
CONFIG_SAMA5_LCDC - LCD Controller
|
|
|
|
|
|
CONFIG_SAMA5_ISI - Image Sensor Interface
|
|
|
|
|
|
CONFIG_SAMA5_SSC0 - Synchronous Serial Controller 0
|
|
|
|
|
|
CONFIG_SAMA5_SSC1 - Synchronous Serial Controller 1
|
|
|
|
|
|
CONFIG_SAMA5_SHA - Secure Hash Algorithm
|
|
|
|
|
|
CONFIG_SAMA5_AES - Advanced Encryption Standard
|
|
|
|
|
|
CONFIG_SAMA5_TDES - Triple Data Encryption Standard
|
|
|
|
|
|
CONFIG_SAMA5_TRNG - True Random Number Generator
|
|
|
|
|
|
CONFIG_SAMA5_ARM - Performance Monitor Unit
|
|
|
|
|
|
CONFIG_SAMA5_FUSE - Fuse Controller
|
|
|
|
|
|
CONFIG_SAMA5_MPDDRC - MPDDR controller
|
|
|
|
|
|
|
|
|
|
|
|
Some subsystems can be configured to operate in different ways. The drivers
|
|
|
|
|
|
need to know how to configure the subsystem.
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_PIOA_IRQ - Support PIOA interrupts
|
|
|
|
|
|
CONFIG_SAMA5_PIOB_IRQ - Support PIOB interrupts
|
|
|
|
|
|
CONFIG_SAMA5_PIOC_IRQ - Support PIOD interrupts
|
|
|
|
|
|
CONFIG_SAMA5_PIOD_IRQ - Support PIOD interrupts
|
|
|
|
|
|
CONFIG_SAMA5_PIOE_IRQ - Support PIOE interrupts
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_USART0_ISUART - USART0 is configured as a UART
|
|
|
|
|
|
CONFIG_USART1_ISUART - USART1 is configured as a UART
|
|
|
|
|
|
CONFIG_USART2_ISUART - USART2 is configured as a UART
|
|
|
|
|
|
CONFIG_USART3_ISUART - USART3 is configured as a UART
|
|
|
|
|
|
|
|
|
|
|
|
AT91SAMA5 specific device driver settings
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_DBGU_SERIAL_CONSOLE - selects the DBGU
|
|
|
|
|
|
for the console and ttyDBGU
|
|
|
|
|
|
CONFIG_SAMA5_DBGU_RXBUFSIZE - Characters are buffered as received.
|
|
|
|
|
|
This specific the size of the receive buffer
|
|
|
|
|
|
CONFIG_SAMA5_DBGU_TXBUFSIZE - Characters are buffered before
|
|
|
|
|
|
being sent. This specific the size of the transmit buffer
|
|
|
|
|
|
CONFIG_SAMA5_DBGU_BAUD - The configure BAUD of the DBGU.
|
|
|
|
|
|
CONFIG_SAMA5_DBGU_PARITY - 0=no parity, 1=odd parity, 2=even parity
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_U[S]ARTn_SERIAL_CONSOLE - selects the USARTn (n=0,1,2,3) or UART
|
|
|
|
|
|
m (m=4,5) for the console and ttys0 (default is the DBGU).
|
|
|
|
|
|
CONFIG_U[S]ARTn_RXBUFSIZE - Characters are buffered as received.
|
|
|
|
|
|
This specific the size of the receive buffer
|
|
|
|
|
|
CONFIG_U[S]ARTn_TXBUFSIZE - Characters are buffered before
|
|
|
|
|
|
being sent. This specific the size of the transmit buffer
|
|
|
|
|
|
CONFIG_U[S]ARTn_BAUD - The configure BAUD of the UART. Must be
|
|
|
|
|
|
CONFIG_U[S]ARTn_BITS - The number of bits. Must be either 7 or 8.
|
|
|
|
|
|
CONFIG_U[S]ARTn_PARITY - 0=no parity, 1=odd parity, 2=even parity
|
|
|
|
|
|
CONFIG_U[S]ARTn_2STOP - Two stop bits
|
|
|
|
|
|
|
|
|
|
|
|
AT91SAMA5 USB Host Configuration
|
|
|
|
|
|
Pre-requisites
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_USBDEV - Enable USB device support
|
|
|
|
|
|
CONFIG_USBHOST - Enable USB host support
|
|
|
|
|
|
CONFIG_SAMA5_UHPHS - Needed
|
|
|
|
|
|
CONFIG_SAMA5_OHCI - Enable the STM32 USB OTG FS block
|
|
|
|
|
|
CONFIG_SCHED_WORKQUEUE - Worker thread support is required
|
|
|
|
|
|
|
|
|
|
|
|
Options:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_OHCI_NEDS
|
|
|
|
|
|
Number of endpoint descriptors
|
|
|
|
|
|
CONFIG_SAMA5_OHCI_NTDS
|
|
|
|
|
|
Number of transfer descriptors
|
|
|
|
|
|
CONFIG_SAMA5_OHCI_TDBUFFERS
|
|
|
|
|
|
Number of transfer descriptor buffers
|
|
|
|
|
|
CONFIG_SAMA5_OHCI_TDBUFSIZE
|
|
|
|
|
|
Size of one transfer descriptor buffer
|
|
|
|
|
|
CONFIG_USBHOST_INT_DISABLE
|
|
|
|
|
|
Disable interrupt endpoint support
|
|
|
|
|
|
CONFIG_USBHOST_ISOC_DISABLE
|
|
|
|
|
|
Disable isochronous endpoint support
|
|
|
|
|
|
CONFIG_USBHOST_BULK_DISABLE
|
|
|
|
|
|
Disable bulk endpoint support
|
|
|
|
|
|
|
|
|
|
|
|
config SAMA5_OHCI_REGDEBUG
|
|
|
|
|
|
|
|
|
|
|
|
Configurations
|
|
|
|
|
|
==============
|
|
|
|
|
|
|
|
|
|
|
|
Information Common to All Configurations
|
|
|
|
|
|
----------------------------------------
|
|
|
|
|
|
Each SAMA4D4-EK configuration is maintained in a sub-directory and
|
|
|
|
|
|
can be selected as follow:
|
|
|
|
|
|
|
|
|
|
|
|
cd tools
|
|
|
|
|
|
./configure.sh sama5d4-ek/<subdir>
|
|
|
|
|
|
cd -
|
|
|
|
|
|
. ./setenv.sh
|
|
|
|
|
|
|
|
|
|
|
|
Before sourcing the setenv.sh file above, you should examine it and perform
|
|
|
|
|
|
edits as necessary so that TOOLCHAIN_BIN is the correct path to the directory
|
|
|
|
|
|
than holds your toolchain binaries.
|
|
|
|
|
|
|
|
|
|
|
|
And then build NuttX by simply typing the following. At the conclusion of
|
|
|
|
|
|
the make, the nuttx binary will reside in an ELF file called, simply, nuttx.
|
|
|
|
|
|
|
|
|
|
|
|
make
|
|
|
|
|
|
|
|
|
|
|
|
The <subdir> that is provided above as an argument to the tools/configure.sh
|
|
|
|
|
|
must be is one of the following.
|
|
|
|
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
|
|
|
|
|
|
|
1. These configurations use the mconf-based configuration tool. To
|
|
|
|
|
|
change any of these configurations using that tool, you should:
|
|
|
|
|
|
|
|
|
|
|
|
a. Build and install the kconfig-mconf tool. See nuttx/README.txt
|
2015-06-28 16:08:57 +02:00
|
|
|
|
see additional README.txt files in the NuttX tools repository.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
b. Execute 'make menuconfig' in nuttx/ in order to start the
|
|
|
|
|
|
reconfiguration process.
|
|
|
|
|
|
|
|
|
|
|
|
2. Unless stated otherwise, all configurations generate console
|
|
|
|
|
|
output on the DBGU (J23).
|
|
|
|
|
|
|
|
|
|
|
|
3. All of these configurations use the Code Sourcery for Windows toolchain
|
|
|
|
|
|
(unless stated otherwise in the description of the configuration). That
|
|
|
|
|
|
toolchain selection can easily be reconfigured using 'make menuconfig'.
|
|
|
|
|
|
Here are the relevant current settings:
|
|
|
|
|
|
|
|
|
|
|
|
Build Setup:
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CONFIG_HOST_WINDOWS=y : Microsoft Windows
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CONFIG_WINDOWS_CYGWIN=y : Using Cygwin or other POSIX environment
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System Type -> Toolchain:
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CONFIG_ARMV7A_TOOLCHAIN_GNU_EABIW=y : GNU EABI toolchain for windows
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That same configuration will work with Atmel GCC toolchain. The only
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change required to use the Atmel GCC toolchain is to change the PATH
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variable so that those tools are selected instead of the CodeSourcery
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tools. Try 'which arm-none-eabi-gcc' to make sure that you are
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selecting the right tool.
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The setenv.sh file is available for you to use to set the PATH
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variable. The path in the that file may not, however, be correct
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for your installation.
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See also the "NOTE about Windows native toolchains" in the section call
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"GNU Toolchain Options" above.
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!!!WARNING!!! The first time that you type 'make', the system will
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configure itself based on the settings in the .config file. One of
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these settings can cause a lot of confusion if you configure the build
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in the wrong state: If you are running on Linux, make *certain* that
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you have CONFIG_HOST_LINUX=y *before* the first make or you will
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create a very corrupt configuration that may not be easy to recover
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from.
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2014-07-02 23:31:52 +02:00
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4. The SAMA5Dx is running at 528MHz by default in these configurations.
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2014-06-06 20:37:36 +02:00
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Board Selection -> CPU Frequency
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2014-07-02 23:31:52 +02:00
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CONFIG_SAMA5D4EK_528MHZ=y : Enable 528MHz operation
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CONFIG_BOARD_LOOPSPERMSEC=65775 : Calibrated on SAMA5D3-Xplained at
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: 528MHz running from SDRAM
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2014-06-06 20:37:36 +02:00
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Configuration Sub-directories
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-----------------------------
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Summary: Some of the descriptions below are long and wordy. Here is the
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concise summary of the available SAMA4D4-EK configurations:
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2014-06-28 17:57:00 +02:00
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at25boot: This is a little program to write a boot loader into the
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AT25 serial FLASH (in particular, dramboot). See the description
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below and the section above entitled "Creating and Using AT25BOOT"
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for more information
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2014-11-17 17:56:02 +01:00
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bridge: This is a simple testing that exercises EMAC0 and EMAC1 for
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a simple UDP relay bridge test.
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2014-06-27 00:42:06 +02:00
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dramboot: This is a little program to help debug of code in DRAM. See
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the description below and the section above entitled "Creating and
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Using DRAMBOOT" for more information
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2014-08-24 22:12:45 +02:00
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elf: Demonstrates execution of ELF file from a file system.
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2015-02-09 17:51:05 +01:00
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ipv6: This is another version of the NuttShell configuration. It is
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very similar to the nsh configuration except that it has IPv6 enabled
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and IPv4 disabled.
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2014-09-08 19:05:05 +02:00
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knsh: An NSH configuration used to test the SAMA5D kernel build
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2014-09-06 15:04:14 +02:00
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configuration. Uses a tiny NSH configuration that runs at
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start time from a mounted file system.
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2014-07-10 23:29:41 +02:00
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nsh: This is an NuttShell (NSH) configuration that supports extensive
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functionality as possible (unlike the minimal ramtest configuration).
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See the detailed description below for a summary of the feature
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set supported by this configuration. You may want to disable some
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of these features if you plan to use the NSH as a platform for
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debugging and integrating new features.
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2014-07-10 22:10:36 +02:00
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nxwm: This is a special configuration setup for the NxWM window manager
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UnitTest. It integrates support for both the SAMA5 LCDC and the
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SAMA5 ADC touchscreen controller and provides a more advance
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graphics demo. It provides an interactive windowing experience.
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2014-06-14 21:11:42 +02:00
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ramtest: This is a stripped down version of NSH that runs out of
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internal SRAM. It configures SDRAM and supports only the RAM test
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at apps/examples/ramtest. This configuration is useful for
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bringing up SDRAM.
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2014-06-06 20:37:36 +02:00
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There may be issues with some of these configurations. See the details
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before of the status of individual configurations.
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Now for the gory details:
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2014-06-28 17:57:00 +02:00
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at25boot:
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To work around some SAM-BA availability issues that I had at one time,
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I created the at25boot program. at25boot is a tiny program that runs in
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ISRAM. at25boot will enable SDRAM and configure the AT25 Serial FLASH.
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It will prompt and then load an Intel HEX program into SDRAM over the
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serial console. If the program is successfully loaded in SDRAM, at25boot
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will copy the program at the beginning of the AT26 Serial FLASH.
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If the jumpering is set correctly, the SAMA5D4 RomBOOT loader will
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then boot the program from the serial FLASH the next time that it
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reset.
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The usage is different, otherwise I believe the notes for the dramboot
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configuration should all apply.
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2014-06-28 20:38:41 +02:00
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STATUS: While this program works great and appears to correctly write
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the binary image onto the AT25 Serial FLASH, the RomBOOT loader will
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not boot it! I believe that is because the secure boot loader has some
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undocumented requirements that I am unaware of. (2014-6-28)
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2014-11-17 17:56:02 +01:00
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bridge:
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2014-11-20 23:24:30 +01:00
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2014-11-17 17:56:02 +01:00
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This is a simple testing that exercises EMAC0 and EMAC1 for a simple
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UDP relay bridge test using apps/examples/bridge. See
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apps/examples/README.txt for more information about this test.
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NOTES:
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1. This configuration uses the the USART3 for the serial console
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which is available at the "DBGU" RS-232 connector (J24). That
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is easily changed by reconfiguring to (1) enable a different
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serial peripheral, and (2) selecting that serial peripheral as
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the console device.
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2. By default, this configuration is set up to build on Windows
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under either a Cygwin or MSYS environment using a recent, Windows-
|
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native, generic ARM EABI GCC toolchain (such as the CodeSourcery
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toolchain). Both the build environment and the toolchain
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selection can easily be changed by reconfiguring:
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CONFIG_HOST_WINDOWS=y : Windows operating system
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CONFIG_WINDOWS_CYGWIN=y : POSIX environment under windows
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CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
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If you are running on Linux, make *certain* that you have
|
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|
|
CONFIG_HOST_LINUX=y *before* the first make or you will create a
|
|
|
|
|
|
corrupt configuration that may not be easy to recover from. See
|
|
|
|
|
|
the warning in the section "Information Common to All Configurations"
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|
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for further information.
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2014-11-17 19:48:01 +01:00
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3. EMAC0 and EMAC1 connect KSZ8081RNB PHYs and are available at the
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ETH0 and ETH1 connector, respectively.
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The ETH1 signals go through line drivers that are enabled via the
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board LCD_ETH1_CONFIG signal. Jumper JP2 selects either the EMAC1
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or the LCD by controlling the the LCD_ETH1_CONFIG signal on the
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board.
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- JP2 open, LCD_ETH1_CONFIG pulled high:
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LCD_ETH1_CONFIG=1: LCD 5v enable(LCD_DETECT#=0); ETH1 disable
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- JP2 closed, LCD_ETH1_CONFIG grounded:
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LCD_ETH1_CONFIG=0: LCD 5v disable; ETH1 enable
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2014-11-17 19:03:40 +01:00
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2014-11-17 17:56:02 +01:00
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STATUS:
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2014-11-18 00:44:49 +01:00
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2014-11-17: Configuration created. Only partially verified. EMAC0
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seems functional, but EMAC1 does not respond to pings. Cannot perform
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the full bridge test yet anyway because there still is no host-side
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test driver in apps/examples/bridge.
|
2014-11-18 21:28:27 +01:00
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2014-11-18: Continued working with EMAC1: It does not work. No
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2014-11-19 14:17:46 +01:00
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errors are reported, link auto-negotiation works without error, but I
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2014-11-18 21:28:27 +01:00
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cannot send or receive anything on EMAC1: TX transfers all timeout
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with no interrupts and nothing appearing on the line; RX transfers
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are not received... no RX interrupts and no RX status gets set. This
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appears to be some very low-level issue, perhaps a pin configuration
|
2014-11-19 14:17:46 +01:00
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problem. But I am not seeing it yet. No interrupts are ever received.
|
2014-11-17 17:56:02 +01:00
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|
2014-06-27 00:42:06 +02:00
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dramboot:
|
2014-06-27 01:04:53 +02:00
|
|
|
|
|
2014-06-27 00:42:06 +02:00
|
|
|
|
This is a little program to help debug of code in DRAM. It does the
|
|
|
|
|
|
following:
|
|
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|
2014-06-29 17:52:07 +02:00
|
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- Sets the clocking so that the SAMA5 is running at 528MHz.
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- Configures DRAM,
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- Loads and Intel HEX file into DRAM over the terminal port,
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- Waits for you to break in with GDB (or optionally starts the
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newly loaded program).
|
2014-06-27 00:42:06 +02:00
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At that point, you can set the PC and begin executing from SDRAM under
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debug control. See the section entitled "Creating and Using
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DRAMBOOT" above.
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NOTES:
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1. This configuration uses the the USART3 for the serial console
|
|
|
|
|
|
which is available at the "DBGU" RS-232 connector (J24). That
|
|
|
|
|
|
is easily changed by reconfiguring to (1) enable a different
|
|
|
|
|
|
serial peripheral, and (2) selecting that serial peripheral as
|
|
|
|
|
|
the console device.
|
|
|
|
|
|
|
|
|
|
|
|
2. By default, this configuration is set up to build on Windows
|
|
|
|
|
|
under either a Cygwin or MSYS environment using a recent, Windows-
|
|
|
|
|
|
native, generic ARM EABI GCC toolchain (such as the CodeSourcery
|
|
|
|
|
|
toolchain). Both the build environment and the toolchain
|
|
|
|
|
|
selection can easily be changed by reconfiguring:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_HOST_WINDOWS=y : Windows operating system
|
|
|
|
|
|
CONFIG_WINDOWS_CYGWIN=y : POSIX environment under windows
|
|
|
|
|
|
CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
|
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|
|
If you are running on Linux, make *certain* that you have
|
|
|
|
|
|
CONFIG_HOST_LINUX=y *before* the first make or you will create a
|
|
|
|
|
|
corrupt configuration that may not be easy to recover from. See
|
|
|
|
|
|
the warning in the section "Information Common to All Configurations"
|
|
|
|
|
|
for further information.
|
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3. This configuration executes out of internal SRAM flash and is
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loaded into SRAM by the boot RomBoot from NAND, Serial
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DataFlash, SD card or from a TFTPC sever via the Boot ROM.
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Data also is positioned in SRAM.
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2. The default dramboot program initializes the DRAM memory,
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displays a message, loads an Intel HEX program into DRAM over the
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serial console and halts. The dramboot program can also be
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configured to jump directly into DRAM without requiring the
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final halt and go by setting CONFIG_SAMA5D4EK_DRAM_START=y in the
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NuttX configuration.
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3. Be aware that the default dramboot also disables the watchdog.
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Since you will not be able to re-enable the watchdog later, you may
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need to set CONFIG_SAMA5_WDT=y in the NuttX configuration file.
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4. If you put dramboot on the Serial FLASH, you can automatically
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boot to SDRAM on reset. See the section "Creating and Using DRAMBOOT"
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above.
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5. Here are the steps that I use to execute this program in SRAM
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using only the ROM Bootloader:
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a) Hold the DIS_BOOT button and
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b) With the DIS_BOOT button pressed, power cycle the board. A
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reset does not seem to be sufficient.
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c) The serial should show RomBOOT in a terminal window (at 115200
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8N1) and nothing more.
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d) Press ENTER in the terminal window a few times to enable JTAG.
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e) Start the Segger GDB server. It should successfully connect to
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the board via JTAG (if JTAG was correctly enabled in step d)).
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f) Start GDB, connect, to the GDB server, load NuttX, and debug.
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gdb> target remote localhost:2331
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gdb> mon halt (don't do mon reset)
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gdb> load nuttx
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gdb> mon reg pc (make sure that the PC is 0x200040
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|
gdb> ... and debug ...
|
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|
|
2014-06-28 20:38:41 +02:00
|
|
|
|
STATUS: I don't have a working SAM-BA at the moment and there are issues
|
|
|
|
|
|
with my AT25BOOT (see above). I currently work around these issues by
|
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|
|
putting DRAMBOOT on a microSD card (as boot.bin). The RomBOOT loader does
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|
|
boot that image without issue.
|
|
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|
|
2014-08-24 22:12:45 +02:00
|
|
|
|
elf:
|
|
|
|
|
|
|
|
|
|
|
|
Demonstrates execution of ELF file from a file system using
|
|
|
|
|
|
apps/examples/elf. This is a very simple configuration so there is not
|
|
|
|
|
|
really much that needs to be said.
|
|
|
|
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
|
|
|
|
|
|
|
1. This configuration uses the the USART3 for the serial console
|
|
|
|
|
|
which is available at the "DBGU" RS-232 connector (J24). That
|
|
|
|
|
|
is easily changed by reconfiguring to (1) enable a different
|
|
|
|
|
|
serial peripheral, and (2) selecting that serial peripheral as
|
|
|
|
|
|
the console device.
|
|
|
|
|
|
|
|
|
|
|
|
2. By default, this configuration is set up to build on Windows
|
|
|
|
|
|
under either a Cygwin or MSYS environment using a recent, Windows-
|
|
|
|
|
|
native, generic ARM EABI GCC toolchain (such as the CodeSourcery
|
|
|
|
|
|
toolchain). Both the build environment and the toolchain
|
|
|
|
|
|
selection can easily be changed by reconfiguring:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_HOST_WINDOWS=y : Windows operating system
|
|
|
|
|
|
CONFIG_WINDOWS_CYGWIN=y : POSIX environment under windows
|
|
|
|
|
|
CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
|
|
|
|
|
|
|
|
|
|
|
|
If you are running on Linux, make *certain* that you have
|
|
|
|
|
|
CONFIG_HOST_LINUX=y *before* the first make or you will create a
|
|
|
|
|
|
corrupt configuration that may not be easy to recover from. See
|
|
|
|
|
|
the warning in the section "Information Common to All Configurations"
|
|
|
|
|
|
for further information.
|
|
|
|
|
|
|
2014-08-28 19:08:26 +02:00
|
|
|
|
3. This configuration currently has Cortex-A address environments selected.
|
|
|
|
|
|
With this option, the MMU is used to create a custom address environment
|
|
|
|
|
|
for each ELF program (effectively making them processes). This option
|
|
|
|
|
|
can be disabled in which case the ELF programs will simply execute out
|
|
|
|
|
|
normal memory allocated from the heap. To disable this feature:
|
2014-08-25 21:28:13 +02:00
|
|
|
|
|
|
|
|
|
|
System Type -> Architecture Options
|
|
|
|
|
|
CONFIG_ARCH_ADDRENV=n : Disable address environment support
|
|
|
|
|
|
|
2014-08-25 21:59:02 +02:00
|
|
|
|
System Type -> Heap Configuration
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_RESERVE=n : Don't reserve any page cache memory
|
|
|
|
|
|
CONFIG_SAMA5_DDRCS_PGHEAP=n : Don't try to set up the page allocator
|
|
|
|
|
|
|
2014-08-25 21:28:13 +02:00
|
|
|
|
Memory Management
|
2014-09-09 21:51:13 +02:00
|
|
|
|
CONFIG_GRAN=n : Disable the granule allocator
|
2014-08-25 21:28:13 +02:00
|
|
|
|
CONFIG_MM_PGALLOC=n : Disable the page allocator
|
|
|
|
|
|
|
2014-11-14 16:54:00 +01:00
|
|
|
|
4. A system call interface is enabled and the ELF test programs interface
|
|
|
|
|
|
with the base RTOS code system calls. This eliminates the need for symbol
|
|
|
|
|
|
tables to link with the base RTOS (symbol tables are still used, however,
|
|
|
|
|
|
to interface with the common C library instaniation). Relevant
|
|
|
|
|
|
configuration settings:
|
2014-08-30 16:48:18 +02:00
|
|
|
|
|
2014-09-11 18:31:12 +02:00
|
|
|
|
RTOS Features -> System call support
|
|
|
|
|
|
CONFIG_LIB_SYSCALL=y : Enable system call support
|
|
|
|
|
|
CONFIG_SYS_NNEST=2 : Max number of nested system calls
|
|
|
|
|
|
CONFIG_SYS_RESERVED=1 : SYStem call 0 is reserved on this platform
|
2014-08-30 16:48:18 +02:00
|
|
|
|
|
2014-09-11 18:31:12 +02:00
|
|
|
|
Application Configurations -> Examples -> ELF Loader Example
|
|
|
|
|
|
CONFIG_EXAMPLES_ELF_SYSCALL=y : Link apps with the SYStem call library
|
2014-08-30 16:48:18 +02:00
|
|
|
|
|
2014-08-25 21:28:13 +02:00
|
|
|
|
STATUS:
|
2014-08-28 19:08:26 +02:00
|
|
|
|
2014-8-24: This configuration works with the address environment
|
2014-08-30 16:48:18 +02:00
|
|
|
|
and system call options disabled.
|
2014-08-28 19:08:26 +02:00
|
|
|
|
2014-8-28: Now this option works well well with address environments
|
|
|
|
|
|
enabled. There is a potential issue with the use of
|
|
|
|
|
|
task_create() as it is used in the ELF test, but the code
|
|
|
|
|
|
seems to survive it. See:
|
|
|
|
|
|
|
|
|
|
|
|
http://www.nuttx.org/doku.php?id=wiki:nxinternal:memconfigs#task_create
|
|
|
|
|
|
|
2014-08-30 16:48:18 +02:00
|
|
|
|
2014-8-29: System call interface verified.
|
2014-09-17 00:12:00 +02:00
|
|
|
|
2014-9-16: Reverified after fixing changes for the knsh configuration
|
|
|
|
|
|
that broke this on. All seems to be well now.
|
2014-08-30 16:48:18 +02:00
|
|
|
|
|
2015-02-09 17:51:05 +01:00
|
|
|
|
ipv6:
|
|
|
|
|
|
----
|
|
|
|
|
|
This is another version of the NuttShell configuration. It is very
|
|
|
|
|
|
similar to the nsh configuration except that it has IPv6 enabled and
|
|
|
|
|
|
IPv4 disabled. Several network utilities that are not yet available
|
|
|
|
|
|
under IPv6 are disabled.
|
|
|
|
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
|
|
|
|
|
|
|
1. As of 2015-02-09, this configuration was identical to the nsh
|
|
|
|
|
|
configuration other than using IPv6. So all of the notes below
|
|
|
|
|
|
regarding the nsh configuration apply.
|
|
|
|
|
|
|
|
|
|
|
|
Telnet does not work with IPv6.
|
|
|
|
|
|
|
|
|
|
|
|
2. This configuration can be modified to that both IPv4 and IPv6
|
|
|
|
|
|
are support. Here is a summary of the additional configuration
|
|
|
|
|
|
settings requird to support both IPv4 and IPv6:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_NET_IPv4=y
|
|
|
|
|
|
CONFIG_NET_ARP=y
|
|
|
|
|
|
CONFIG_NET_ARP_SEND=y (optional)
|
|
|
|
|
|
CONFIG_NET_ICMP=y
|
|
|
|
|
|
CONFIG_NET_ICMP_PING=y
|
|
|
|
|
|
|
2015-07-10 20:09:58 +02:00
|
|
|
|
CONFIG_NETDB_DNSCLIENT=y
|
2015-02-09 17:51:05 +01:00
|
|
|
|
CONFIG_NETUTILS_TELNETD=y
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_NSH_IPADDR=0x0a000002
|
|
|
|
|
|
CONFIG_NSH_DRIPADDR=0x0a000001
|
|
|
|
|
|
CONFIG_NSH_NETMASK=0xffffff00
|
|
|
|
|
|
CONFIG_NSH_TELNET=y
|
|
|
|
|
|
|
|
|
|
|
|
Then from NSH, you have both ping and ping6 commands:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> ping 10.0.0.1
|
|
|
|
|
|
nsh> ping6 fc00::1
|
|
|
|
|
|
|
|
|
|
|
|
And from the host you can do similar:
|
|
|
|
|
|
|
|
|
|
|
|
ping 10.0.0.2
|
|
|
|
|
|
ping6 fc00::2 (Linux)
|
|
|
|
|
|
ping -6 fc00::2 (Windows cmd)
|
|
|
|
|
|
|
|
|
|
|
|
and Telnet again works from the host:
|
|
|
|
|
|
|
|
|
|
|
|
telent 10.0.0.2
|
|
|
|
|
|
|
|
|
|
|
|
3. You can enable IPv6 autonomous address configuration with the
|
|
|
|
|
|
following changes to the configuration:
|
|
|
|
|
|
|
|
|
|
|
|
+ CONFIG_NET_ICMPv6_AUTOCONF=y
|
|
|
|
|
|
+ CONFIG_ICMPv6_AUTOCONF_DELAYMSEC=100
|
|
|
|
|
|
+ CONFIG_ICMPv6_AUTOCONF_MAXTRIES=5
|
|
|
|
|
|
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_1=0xfc00
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_2=0x0000
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_3=0x0000
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_4=0x0000
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_5=0x0000
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_6=0x0000
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_7=0x0000
|
|
|
|
|
|
- CONFIG_NSH_DRIPv6ADDR_8=0x0001
|
|
|
|
|
|
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_1=0xfc00
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_2=0x0000
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_3=0x0000
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_4=0x0000
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_5=0x0000
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_6=0x0000
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_7=0x0000
|
|
|
|
|
|
- CONFIG_NSH_IPv6ADDR_8=0x0002
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_1=0xffff
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_2=0xffff
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_3=0xffff
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_4=0xffff
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_5=0xffff
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_6=0xffff
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_7=0xffff
|
|
|
|
|
|
- CONFIG_NSH_IPv6NETMASK_8=0xff80
|
|
|
|
|
|
|
2014-09-08 19:05:05 +02:00
|
|
|
|
knsh:
|
|
|
|
|
|
An NSH configuration used to test the SAMA5D kenel build configuration.
|
2014-08-31 19:08:49 +02:00
|
|
|
|
|
2014-09-03 16:34:28 +02:00
|
|
|
|
NOTES:
|
2014-08-31 19:08:49 +02:00
|
|
|
|
|
2014-09-06 15:04:14 +02:00
|
|
|
|
1. This configuration uses the the USART3 for the serial console
|
|
|
|
|
|
which is available at the "DBGU" RS-232 connector (J24). That
|
|
|
|
|
|
is easily changed by reconfiguring to (1) enable a different
|
|
|
|
|
|
serial peripheral, and (2) selecting that serial peripheral as
|
|
|
|
|
|
the console device.
|
|
|
|
|
|
|
|
|
|
|
|
2. By default, this configuration is set up to build on Windows
|
|
|
|
|
|
under either a Cygwin or MSYS environment using a recent, Windows-
|
|
|
|
|
|
native, generic ARM EABI GCC toolchain (such as the CodeSourcery
|
|
|
|
|
|
toolchain). Both the build environment and the toolchain
|
|
|
|
|
|
selection can easily be changed by reconfiguring:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_HOST_WINDOWS=y : Windows operating system
|
|
|
|
|
|
CONFIG_WINDOWS_CYGWIN=y : POSIX environment under windows
|
|
|
|
|
|
CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
|
|
|
|
|
|
|
|
|
|
|
|
If you are running on Linux, make *certain* that you have
|
|
|
|
|
|
CONFIG_HOST_LINUX=y *before* the first make or you will create a
|
|
|
|
|
|
corrupt configuration that may not be easy to recover from. See
|
|
|
|
|
|
the warning in the section "Information Common to All Configurations"
|
|
|
|
|
|
for further information.
|
|
|
|
|
|
|
|
|
|
|
|
3. Some key setup configuration values for this configuration:
|
2014-08-31 19:08:49 +02:00
|
|
|
|
|
2014-09-03 16:34:28 +02:00
|
|
|
|
Build Setup -> Build Configuration -> Memory Organization
|
|
|
|
|
|
CONFIG_BUILD_KERNEL=y : Kernel build enabled
|
2014-08-31 19:08:49 +02:00
|
|
|
|
|
2014-09-03 16:34:28 +02:00
|
|
|
|
RTOS Features -> Tasks and Scheduling
|
|
|
|
|
|
CONFIG_INIT_FILEPATH=y : Start-up is via an ELF file
|
|
|
|
|
|
CONFIG_USER_INITPATH="/bin/init" : The location of the startup
|
2014-09-06 22:40:39 +02:00
|
|
|
|
CONFIG_SCHED_HAVE_PARENT=y : Needed to handle task exit
|
2014-09-03 16:34:28 +02:00
|
|
|
|
|
|
|
|
|
|
RTOS Features -> System call support
|
|
|
|
|
|
CONFIG_SYS_RESERVED=5 : More reserved SYSCALLs
|
|
|
|
|
|
|
2014-09-06 22:40:39 +02:00
|
|
|
|
RTOS Features -> RTOS hooks
|
|
|
|
|
|
CONFIG_SCHED_ONEXIT=y : Needed to handle task exit
|
|
|
|
|
|
CONFIG_SCHED_ONEXIT_MAX=2
|
|
|
|
|
|
|
2014-09-03 16:34:28 +02:00
|
|
|
|
Memory Management
|
|
|
|
|
|
CONFIG_MM_KERNEL_HEAP=y : Enable a kernel heap
|
|
|
|
|
|
CONFIG_MM_KERNEL_HEAPSIZE=8192 : (temporary.. will change)
|
|
|
|
|
|
|
2014-09-09 21:51:13 +02:00
|
|
|
|
4. By default, this configuration is setup to boot from an SD card.
|
|
|
|
|
|
Unfortunately, there some issues when using the SD card that prevent
|
|
|
|
|
|
this from working properly (see STATUS below). And alternative is to
|
|
|
|
|
|
use a built-in ROMFS file system that does not suffer from the
|
|
|
|
|
|
(assumed) HSMCI bug.
|
|
|
|
|
|
|
|
|
|
|
|
So why isn't this the default configuration? Because it does not
|
|
|
|
|
|
build out-of-the-box. You have to take special steps in the build
|
|
|
|
|
|
process as described below.
|
|
|
|
|
|
|
2014-11-14 16:54:00 +01:00
|
|
|
|
Assuming that you will want to reconfigure to use the ROMFS (rather
|
|
|
|
|
|
than debugging HSCMI), you will need to disable all of these settings:
|
2014-09-09 21:51:13 +02:00
|
|
|
|
|
|
|
|
|
|
System Type->ATSAMA5 Peripheral Support
|
|
|
|
|
|
CONFIG_SAMA5_HSMCI0=n : Disable HSMCI0 support
|
|
|
|
|
|
CONFIG_SAMA5_XDMAC0=n : XDMAC0 is no longer needed
|
|
|
|
|
|
|
|
|
|
|
|
System Type
|
|
|
|
|
|
CONFIG_SAMA5_PIO_IRQ=n : PIO interrupts are no longer needed
|
|
|
|
|
|
|
|
|
|
|
|
Device Drivers -> MMC/SD Driver Support
|
|
|
|
|
|
CONFIG_MMCSD=n : Disable MMC/SD support
|
|
|
|
|
|
|
|
|
|
|
|
File System
|
|
|
|
|
|
CONFIG_FS_FAT=n : FAT file system no longer needed
|
|
|
|
|
|
|
|
|
|
|
|
Board Selection
|
|
|
|
|
|
CONFIG_SAMA5D4EK_HSMCI0_MOUNT=y : Don't mount HSMCI0 at boot
|
|
|
|
|
|
|
|
|
|
|
|
And then enable these features in order to use the ROMFS boot file
|
|
|
|
|
|
system:
|
|
|
|
|
|
|
|
|
|
|
|
File System
|
|
|
|
|
|
CONFIG_FS_ROMFS=y : Enable the ROMFS file system
|
|
|
|
|
|
|
|
|
|
|
|
Board Selection
|
|
|
|
|
|
CONFIG_SAMA5D4EK_ROMFS_MOUNT=y : Mount the ROMFS file system at boot
|
|
|
|
|
|
CONFIG_SAMA5D4EK_ROMFS_MOUNT_MOUNTPOINT="/bin"
|
|
|
|
|
|
CONFIG_SAMA5D4EK_ROMFS_ROMDISK_DEVNAME="/dev/ram0"
|
|
|
|
|
|
CONFIG_SAMA5D4EK_ROMFS_ROMDISK_MINOR=0
|
|
|
|
|
|
CONFIG_SAMA5D4EK_ROMFS_ROMDISK_SECTSIZE=512
|
|
|
|
|
|
|
|
|
|
|
|
Then you will need to follow some special build instructions below
|
|
|
|
|
|
in order to build and install the ROMFS file system image.
|
|
|
|
|
|
|
|
|
|
|
|
UPDATE: The ROMFS configuration is pre-configured in the the
|
|
|
|
|
|
file nuttx/configs/sama5d4-ek/knsh/defconfig.ROMFS
|
|
|
|
|
|
|
|
|
|
|
|
5. Board initialization is performed performed before the application
|
2014-09-03 16:34:28 +02:00
|
|
|
|
is started:
|
|
|
|
|
|
|
|
|
|
|
|
RTOS Features -> RTOS Hooks
|
|
|
|
|
|
CONFIG_BOARD_INITITIALIZE=y
|
|
|
|
|
|
|
2014-09-09 21:51:13 +02:00
|
|
|
|
In the special ROMFS boot configuration, you need to do nothing
|
|
|
|
|
|
additional: The board initialization will mount the ROMFS file
|
|
|
|
|
|
system at boot time.
|
|
|
|
|
|
|
|
|
|
|
|
In the default configuration, however, the board initialization
|
|
|
|
|
|
will instead mount the FAT filesystem on an SD card inserted in
|
|
|
|
|
|
the HSMCI0 slot (full size). The SAMA4D4-EK provides two SD
|
|
|
|
|
|
memory card slots: (1) a full size SD card slot (J10), and (2) a
|
|
|
|
|
|
microSD memory card slot (J11). The full size SD card slot connects
|
|
|
|
|
|
via HSMCI0; the microSD connects vi HSMCI1. See the relevant
|
2014-09-03 16:34:28 +02:00
|
|
|
|
configuration settings above in the paragraph entitled "HSMCI Card
|
|
|
|
|
|
Slots" above.
|
|
|
|
|
|
|
|
|
|
|
|
The SD card is mounted at /bin by this board initialization logic.
|
|
|
|
|
|
NuttX will boot from the SD card so there are some special operational
|
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|
|
|
requirements to use this configuration:
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a. The SD card must contain a NuttX executable called 'init'
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b. The SD card must be in the HSCMCI slot when NuttX boots and must
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not be removed while NuttX is running.
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The NuttX automounter is *not* enabled. It cannot be used it would
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mount the boot file system with a delay. In this configuration. The
|
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file system must be mounted immediately at boot up. To accomplish
|
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this, the board logic supports these special configurations:
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Board Selection ->
|
2015-05-24 01:08:35 +02:00
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CONFIG_SAMA5D4EK_HSMCI0_AUTOMOUNT=y
|
2014-09-03 16:34:28 +02:00
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CONFIG_SAMA5D4EK_HSMCI0_MOUNT_BLKDEV="/dev/mmcsd0"
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CONFIG_SAMA5D4EK_HSMCI0_MOUNT_FSTYPE="vfat"
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CONFIG_SAMA5D4EK_HSMCI0_MOUNT_MOUNTPOINT="/bin"
|
2014-08-31 19:08:49 +02:00
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|
2014-09-09 21:51:13 +02:00
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6a. General build directions (boot from SD card):
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$ cd nuttx/tools : Go to the tools sub-directory
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$ ./configure.sh sama5d4-ek/kernel : Establish this configuration
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$ cd .. : Back to the NuttX build directory
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: Edit setenv.sh to use the correct path
|
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$ . ./setenv.sh : Set up the PATH variable
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$ make : Build the kerne with a dummy ROMFS image
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: This should create the nuttx ELF
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$ make export : Create the kernel export package
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: You should have a file like
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: nuttx-export-*.zip
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$ cd apps/ : Go to the apps/ directory
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$ tools/mkimport.sh -x <zip-file> : Use the full path to nuttx-export-*.zip
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$ make import : This will build the file system.
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You will then need to copy the files from apps/bin to an SD card to
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create the the bootable SD card.
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6b. General build directions (boot from ROMFS image):
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$ cd nuttx/tools : Go to the tools sub-directory
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$ ./configure.sh sama5d4-ek/kernel : Establish this configuration
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$ cd .. : Back to the NuttX build directory
|
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: Edit setenv.sh to use the correct path
|
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$ . ./setenv.sh : Set up the PATH variable
|
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|
$ touch configs/sama5d4-ek/include/boot_romfsimg.h
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$ make : Build the kernel with a dummy ROMFS image
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: This should create the nuttx ELF
|
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$ make export : Create the kernel export package
|
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|
: You should have a file like
|
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|
|
: nuttx-export-*.zip
|
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|
$ cd apps/ : Go to the apps/ directory
|
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|
$ tools/mkimport.sh -x <zip-file> : Use the full path to nuttx-export-*.zip
|
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$ make import : This will build the file system
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$ tools/mkromfsimg.sh : Create the real ROMFS image
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|
$ mv boot_romfsimg.h ../nuttx/configs/sama5d4-ek/include/boot_romfsimg.h
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$ cd nuttx/ : Rebuild the system with the correct
|
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|
|
$ make clean_context all : ROMFS file system
|
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|
2014-09-06 15:04:14 +02:00
|
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|
STATUS:
|
2014-09-09 00:00:57 +02:00
|
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|
2014-09-06 15:04:14 +02:00
|
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|
2014-9-4: The kernel works up to the point where the nsh 'init'
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|
is started from the file system then fails. This is good,
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|
however, because I do not yet have the file system in place yet.
|
2014-09-09 00:00:57 +02:00
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|
2014-9-8: I am seeing HSMCI read() failures while loading the ELF image
|
2014-09-08 19:05:05 +02:00
|
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|
from the SD card. This seems odd since I have never seen other read()
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|
failures with HSMCI (and, hence, this may be some issue unique to this
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|
configuration). In any a event, this has stopped testing for the
|
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|
moment.
|
2014-09-06 15:04:14 +02:00
|
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|
2014-09-09 00:00:57 +02:00
|
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|
Also, the mount() in configs/sama5d4x-ek/src/sam_bringup.c will fail
|
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|
unless you add a delay between the HSMCI initialization and the mount.
|
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|
No idea why (and there they is now delay in the baseline code... one
|
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|
|
has to be added).
|
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|
|
2014-09-09 21:54:56 +02:00
|
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|
Update: I don't believe that this HSMCI error occurs if file system
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|
debug output is enabled.
|
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|
2014-09-12 21:03:10 +02:00
|
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|
2014-9-11: Everything seems to be working quite nicely witn the ROMFS
|
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|
|
file system. A considerable amount of testing has been done and
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|
there are no known defects as of this writing.
|
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|
2014-09-16 21:58:55 +02:00
|
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|
2014-9-16: After some substantial effort, I think I may have resolved
|
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|
|
the last of the mainstream bugs that prevented from executing other
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|
user processes from a user processes. Long story but I am glad to
|
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|
haave that done.
|
2014-09-13 23:45:26 +02:00
|
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|
2014-06-06 20:37:36 +02:00
|
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|
nsh:
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|
2014-06-14 21:11:42 +02:00
|
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|
This configuration directory provide the NuttShell (NSH). This is a
|
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|
|
very simple NSH configuration upon which you can build further
|
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|
|
functionality.
|
2014-06-06 20:37:36 +02:00
|
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|
NOTES:
|
2014-06-27 00:42:06 +02:00
|
|
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|
2014-06-14 21:11:42 +02:00
|
|
|
|
1. This configuration uses the the USART3 for the serial console
|
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|
|
which is available at the "DBGU" RS-232 connector (J24). That
|
2014-06-06 20:37:36 +02:00
|
|
|
|
is easily changed by reconfiguring to (1) enable a different
|
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|
|
serial peripheral, and (2) selecting that serial peripheral as
|
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|
|
the console device.
|
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|
2014-07-10 16:42:25 +02:00
|
|
|
|
2. This configuration was verified using the SAMA5D4-MB, Rev C. board.
|
2015-05-01 23:38:03 +02:00
|
|
|
|
There may be some differences in the released SAMA5D4-EK board. Also,
|
2014-07-10 16:42:25 +02:00
|
|
|
|
this configuration assumes that you have the TM7000 LCD/Touchscreen
|
|
|
|
|
|
attached. If you do not, you should disable the LCD and touchscreen
|
2014-07-10 20:38:18 +02:00
|
|
|
|
drivers as described above under "TM7000 LCD/Touchscreen" and also
|
|
|
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|
|
below.
|
2014-07-10 16:42:25 +02:00
|
|
|
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|
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|
|
3. By default, this configuration is set up to build on Windows
|
2014-06-06 20:37:36 +02:00
|
|
|
|
under either a Cygwin or MSYS environment using a recent, Windows-
|
|
|
|
|
|
native, generic ARM EABI GCC toolchain (such as the CodeSourcery
|
|
|
|
|
|
toolchain). Both the build environment and the toolchain
|
|
|
|
|
|
selection can easily be changed by reconfiguring:
|
|
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|
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|
|
CONFIG_HOST_WINDOWS=y : Windows operating system
|
|
|
|
|
|
CONFIG_WINDOWS_CYGWIN=y : POSIX environment under windows
|
|
|
|
|
|
CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
|
|
|
|
|
|
|
|
|
|
|
|
If you are running on Linux, make *certain* that you have
|
|
|
|
|
|
CONFIG_HOST_LINUX=y *before* the first make or you will create a
|
|
|
|
|
|
corrupt configuration that may not be easy to recover from. See
|
|
|
|
|
|
the warning in the section "Information Common to All Configurations"
|
|
|
|
|
|
for further information.
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
4. This configuration supports logging of debug output to a circular
|
2014-07-01 23:09:47 +02:00
|
|
|
|
buffer in RAM. This feature is discussed fully in this Wiki page:
|
2014-07-30 00:35:47 +02:00
|
|
|
|
http://nuttx.org/doku.php?id=wiki:howtos:syslog . Relevant
|
|
|
|
|
|
configuration settings are summarized below:
|
2014-07-01 23:09:47 +02:00
|
|
|
|
|
|
|
|
|
|
File System:
|
|
|
|
|
|
CONFIG_SYSLOG=y : Enables the System Logging feature.
|
|
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|
|
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|
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|
|
Device Drivers:
|
|
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|
|
CONFIG_RAMLOG=y : Enable the RAM-based logging feature.
|
|
|
|
|
|
CONFIG_RAMLOG_CONSOLE=n : (We don't use the RAMLOG console)
|
|
|
|
|
|
CONFIG_RAMLOG_SYSLOG=y : This enables the RAM-based logger as the
|
|
|
|
|
|
system logger.
|
|
|
|
|
|
CONFIG_RAMLOG_NONBLOCKING=y : Needs to be non-blocking for dmesg
|
|
|
|
|
|
CONFIG_RAMLOG_BUFSIZE=16384 : Buffer size is 16KiB
|
|
|
|
|
|
|
|
|
|
|
|
NOTE: This RAMLOG feature is really only of value if debug output
|
|
|
|
|
|
is enabled. But, by default, no debug output is disabled in this
|
|
|
|
|
|
configuration. Therefore, there is no logic that will add anything
|
|
|
|
|
|
to the RAM buffer. This feature is configured and in place only
|
|
|
|
|
|
to support any future debugging needs that you may have.
|
|
|
|
|
|
|
|
|
|
|
|
If you don't plan on using the debug features, then by all means
|
|
|
|
|
|
disable this feature and save 16KiB of RAM!
|
|
|
|
|
|
|
2014-07-18 01:57:57 +02:00
|
|
|
|
NOTE: There is an issue with capturing data in the RAMLOG: If
|
|
|
|
|
|
the system crashes, all of the crash dump information will into
|
|
|
|
|
|
the RAMLOG and you will be unable to access it! You can tell that
|
|
|
|
|
|
the system has crashed because (a) it will be unresponsive and (b)
|
|
|
|
|
|
the RED LED will be blinking at about 2Hz.
|
|
|
|
|
|
|
|
|
|
|
|
That is another good reason to disable the RAMLOG!
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
5. This configuration executes out of SDRAM flash and is loaded into
|
2014-06-06 20:37:36 +02:00
|
|
|
|
SDRAM from NAND, Serial DataFlash, SD card or from a TFTPC sever via
|
2014-06-27 01:04:53 +02:00
|
|
|
|
U-Boot, BareBox, or the DRAMBOOT configuration described above. Data
|
|
|
|
|
|
also is positioned in SDRAM.
|
|
|
|
|
|
|
|
|
|
|
|
The load address is different for the DRAMBOOT program and the Linux
|
|
|
|
|
|
bootloaders. This can easily be reconfigured, however:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5D4EK_DRAM_BOOT=y
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-27 01:04:53 +02:00
|
|
|
|
See the section above entitled "Creating and Using DRAMBOOT" above
|
2014-06-28 21:27:19 +02:00
|
|
|
|
for more information. Here is a summary of the steps that I used
|
|
|
|
|
|
to boot the NSH configuration:
|
2014-06-27 01:04:53 +02:00
|
|
|
|
|
2014-06-28 21:27:19 +02:00
|
|
|
|
a. Create the DRAMBOOT program as described above. It should be
|
|
|
|
|
|
configured with CONFIG_SAMA5D4EK_DRAM_START=y so that DRAMBOOT
|
|
|
|
|
|
will immediately start the program. You may not want to do
|
|
|
|
|
|
this is your prefer to break in with GDB.
|
|
|
|
|
|
|
|
|
|
|
|
b. Write the DRAMBOOT program binary (nuttx.bin) to a microSD
|
|
|
|
|
|
card as "boot.bin". Insert the microSD card into the boar;
|
|
|
|
|
|
The ROM Booloader should now boot DRAMBOOT on reset and you
|
|
|
|
|
|
should see this message:
|
|
|
|
|
|
|
|
|
|
|
|
Send Intel HEX file now
|
|
|
|
|
|
|
|
|
|
|
|
c. Build the NSH version of NuttX. Send the Intel HEX of NSH
|
|
|
|
|
|
at the prompt. After the file is received, NSH should start
|
|
|
|
|
|
automatically.
|
|
|
|
|
|
|
|
|
|
|
|
At times the past, have have tested with nuttx.bin on an SD card and
|
|
|
|
|
|
booting with U-Boot. These are the commands that I used to boot NuttX
|
|
|
|
|
|
from the SD card:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
|
|
|
|
|
U-Boot> fatload mmc 0 0x20008000 nuttx.bin
|
|
|
|
|
|
U-Boot> go 0x20008040
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
6. Board LEDs and buttons are supported as described under "Buttons and
|
2014-07-08 01:06:25 +02:00
|
|
|
|
LEDs". The interrupt button test is also enabled as an NSH built-in
|
|
|
|
|
|
commands. To run this test, you simply inter the command:
|
|
|
|
|
|
|
|
|
|
|
|
nsh>buttons [npresses]
|
|
|
|
|
|
|
|
|
|
|
|
The interrupt button test will log button press information to the
|
|
|
|
|
|
syslog. Since the RAMLOG is enabled, the SYSLOG output will be
|
|
|
|
|
|
captured to a circular buffer in ram and may be examined using the
|
|
|
|
|
|
NSH dmesg command:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> buttons 2
|
|
|
|
|
|
nsh> dmesg
|
|
|
|
|
|
maxbuttons: 2
|
|
|
|
|
|
Attached handler at 200106f0 to button 0 [PB_USER], oldhandler:0
|
|
|
|
|
|
IRQ:81 Button 0:PB_USER SET:01:
|
|
|
|
|
|
PB_USER depressed
|
|
|
|
|
|
IRQ:81 Button 0:PB_USER SET:00:
|
|
|
|
|
|
PB_USER released
|
|
|
|
|
|
IRQ:81 Button 0:PB_USER SET:01:
|
|
|
|
|
|
PB_USER depressed
|
|
|
|
|
|
IRQ:81 Button 0:PB_USER SET:00:
|
|
|
|
|
|
PB_USER released
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
7. This configuration supports /dev/null, /dev/zero, and /dev/random.
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
|
|
|
|
|
CONFIG_DEV_NULL=y : Enables /dev/null
|
|
|
|
|
|
CONFIG_DEV_ZERO=y : Enabled /dev/zero
|
|
|
|
|
|
|
|
|
|
|
|
Support for /dev/random is implemented using the SAMA5D4's True
|
|
|
|
|
|
Random Number Generator (TRNG). See the section above entitled
|
|
|
|
|
|
"TRNG and /dev/random" for information about configuring /dev/random.
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SAMA5_TRNG=y : Enables the TRNG peripheral
|
|
|
|
|
|
CONFIG_DEV_RANDOM=y : Enables /dev/random
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
8. This configuration has support for NSH built-in applications enabled.
|
2014-07-10 20:38:18 +02:00
|
|
|
|
Two built-in applications are included by default:
|
|
|
|
|
|
|
|
|
|
|
|
a. The I2C Tool. See the section above entitled "I2C Tool" and the
|
|
|
|
|
|
note with regard to I2C below.
|
|
|
|
|
|
b. The interrupting button test as described above in these notes.
|
|
|
|
|
|
c. The touchscreen test program as described above under "TM7000
|
|
|
|
|
|
LCD/Touchscreen" and also below in this notes.
|
|
|
|
|
|
d. An LCD/graphics test program. See the section above entitle
|
|
|
|
|
|
"TM7000 LCD/Touchscreen" and also below in this notes.
|
2014-07-23 23:33:54 +02:00
|
|
|
|
e. The NxPlayer command line media player. This is a work in
|
|
|
|
|
|
progress see the "Audio Support" section above and additional
|
|
|
|
|
|
notes below.
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
9. This configuration has support for the FAT, ROMFS, and PROCFS file
|
2014-07-02 21:08:39 +02:00
|
|
|
|
systems built in.
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
|
|
|
|
|
The FAT file system includes long file name support. Please be aware
|
|
|
|
|
|
that Microsoft claims patents against the long file name support (see
|
|
|
|
|
|
more discussion in the top-level COPYING file).
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_FS_FAT=y : Enables the FAT file system
|
|
|
|
|
|
CONFIG_FAT_LCNAMES=y : Enable lower case 8.3 file names
|
|
|
|
|
|
CONFIG_FAT_LFN=y : Enables long file name support
|
|
|
|
|
|
CONFIG_FAT_MAXFNAME=32 : Arbitrarily limits the size of a path
|
|
|
|
|
|
segment name to 32 bytes
|
|
|
|
|
|
|
|
|
|
|
|
The ROMFS file system is enabled simply with:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_FS_ROMFS=y : Enable ROMFS file system
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-02 21:08:39 +02:00
|
|
|
|
The ROMFS file system is enabled simply with:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_FS_PROCFS=y : Enable PROCFS file system
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
10. An NSH start-up script is provided by the ROMFS file system. The ROMFS
|
2014-06-29 00:11:41 +02:00
|
|
|
|
file system is mounted at /etc and provides:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|- dev/
|
2014-07-02 21:08:39 +02:00
|
|
|
|
| |- ...
|
|
|
|
|
|
| `- ram0 : ROMFS block driver
|
2014-06-29 00:11:41 +02:00
|
|
|
|
`- etc/
|
|
|
|
|
|
`- init.d/
|
2014-07-02 21:08:39 +02:00
|
|
|
|
`- rcS : Start-up script
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
2014-07-02 21:51:57 +02:00
|
|
|
|
(There will, of course, be other devices under /dev including /dev/console,
|
2014-06-29 00:11:41 +02:00
|
|
|
|
/dev/null, /dev/zero, /dev/random, etc.).
|
|
|
|
|
|
|
|
|
|
|
|
Relevant configuration options include:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_NSH_ROMFSETC=y : Enable mounting at of startup file system
|
|
|
|
|
|
CONFIG_NSH_ROMFSMOUNTPT="/etc" : Mount at /etc
|
|
|
|
|
|
CONFIG_NSH_ROMFSDEVNO=0 : Device is /dev/ram0
|
|
|
|
|
|
CONFIG_NSH_ARCHROMFS=y : ROMFS image is at
|
|
|
|
|
|
configs/sama5d4-ek/include/nsh_romfsimg.h
|
|
|
|
|
|
The content of /etc/init.d/rcS can be see in the file rcS.template that
|
|
|
|
|
|
can be found at: configs/sama5d4-ek/include/rcS.template:
|
|
|
|
|
|
|
2014-07-02 21:08:39 +02:00
|
|
|
|
# Mount the procfs file system at /proc
|
|
|
|
|
|
|
|
|
|
|
|
mount -f procfs /proc
|
|
|
|
|
|
echo "rcS: Mounted /proc"
|
|
|
|
|
|
|
|
|
|
|
|
# Create a RAMDISK at /dev/ram1, size 0.5MiB, format it with a FAT
|
|
|
|
|
|
# file system and mount it at /tmp
|
|
|
|
|
|
|
|
|
|
|
|
mkrd -m 1 -s 512 1024
|
2014-06-29 00:11:41 +02:00
|
|
|
|
mkfatfs /dev/ram1
|
|
|
|
|
|
mount -t vfat /dev/ram1 /tmp
|
2014-07-02 21:08:39 +02:00
|
|
|
|
echo "rcS: Mounted /tmp"
|
|
|
|
|
|
|
|
|
|
|
|
The above commands will mount the procfs file system at /proc and a
|
|
|
|
|
|
RAM disk at /tmp.
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
2014-07-02 21:08:39 +02:00
|
|
|
|
The second group of commands will: (1) Create a RAM disk block device
|
|
|
|
|
|
at /dev/ram1 (mkrd). The RAM disk will take 0.4MiB of memory (512 x
|
|
|
|
|
|
1024). Then it will then: (2) create a FAT file system on the ram
|
|
|
|
|
|
disk (mkfatfs) and (3) mount it at /tmp (mount).
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
2014-07-02 21:08:39 +02:00
|
|
|
|
So after NSH starts and runs the rcS script, we will have:
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
|
|
|
|
|
|- dev/
|
2014-07-02 21:08:39 +02:00
|
|
|
|
| |- ...
|
|
|
|
|
|
| `- ram0 : ROMFS block driver
|
|
|
|
|
|
| `- ram1 : RAM disk block driver
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|- etc/
|
|
|
|
|
|
| `- init.d/
|
2014-07-02 21:51:57 +02:00
|
|
|
|
| `- rcS : Start-up script
|
2014-07-02 21:08:39 +02:00
|
|
|
|
|- proc/
|
|
|
|
|
|
| |- 0/ : Information about Task ID 0
|
2014-07-02 21:51:57 +02:00
|
|
|
|
| | |- cmdline : Command line used to start the task
|
|
|
|
|
|
| | |- stack : Stack allocation
|
|
|
|
|
|
| | |- status : Current task status
|
|
|
|
|
|
| | `- group/ : Information about the task group
|
|
|
|
|
|
| | |- fd : File descriptors open in the group
|
|
|
|
|
|
| | `- status : Status of the group
|
2014-07-02 21:08:39 +02:00
|
|
|
|
| |- 1/ : Information about Task ID 1
|
|
|
|
|
|
| | `- ... : Same psuedo-directories as for Task ID 0
|
|
|
|
|
|
| |- ... : ...
|
|
|
|
|
|
| |- n/ : Information about Task ID n
|
2014-07-02 21:51:57 +02:00
|
|
|
|
| | `- ... : Same psuedo-directories as for Task ID 0
|
2014-07-02 21:08:39 +02:00
|
|
|
|
| |- uptime : Processor uptime
|
|
|
|
|
|
`- tmp/
|
|
|
|
|
|
|
|
|
|
|
|
The /tmp directory can them be used for and scratch purpose. The
|
|
|
|
|
|
pseudo-files in the proc/ directory can be used to query properties
|
|
|
|
|
|
of NuttX. As examples:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> cat /proc/1/stack
|
|
|
|
|
|
StackBase: 0x2003b1e8
|
|
|
|
|
|
StackSize: 2044
|
|
|
|
|
|
|
|
|
|
|
|
nsh> cat /proc/uptime
|
|
|
|
|
|
31.89
|
|
|
|
|
|
|
|
|
|
|
|
nsh> cat /proc/1/status
|
|
|
|
|
|
Name: work
|
|
|
|
|
|
Type: Kernel thread
|
|
|
|
|
|
State: Signal wait
|
|
|
|
|
|
Priority: 192
|
|
|
|
|
|
Scheduler: SCHED_FIFO
|
|
|
|
|
|
SigMask: 00000000
|
|
|
|
|
|
|
|
|
|
|
|
nsh> cat /proc/1/cmdline
|
|
|
|
|
|
work
|
|
|
|
|
|
|
|
|
|
|
|
nsh> cat /proc/1/group/status
|
|
|
|
|
|
Flags: 0x00
|
|
|
|
|
|
Members: 1
|
|
|
|
|
|
|
|
|
|
|
|
nsh> cat /proc/1/group/fd
|
|
|
|
|
|
|
|
|
|
|
|
FD POS OFLAGS
|
|
|
|
|
|
0 0 0003
|
|
|
|
|
|
1 0 0003
|
|
|
|
|
|
2 0 0003
|
|
|
|
|
|
|
|
|
|
|
|
SD RF TYP FLAGS
|
2014-06-29 00:11:41 +02:00
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
11. The Real Time Clock/Calendar (RTC) is enabled in this configuration.
|
2014-06-29 15:40:37 +02:00
|
|
|
|
See the section entitled "RTC" above for detailed configuration
|
|
|
|
|
|
settings.
|
|
|
|
|
|
|
|
|
|
|
|
The RTC alarm is not enabled by default since there is nothing in
|
|
|
|
|
|
this configuration that uses it. The alarm can easily be enabled,
|
|
|
|
|
|
however, as described in the "RTC" section.
|
|
|
|
|
|
|
|
|
|
|
|
The time value from the RTC will be used as the NuttX system time
|
|
|
|
|
|
in all timestamp operations. You may use the NSH 'date' command
|
|
|
|
|
|
to set or view the RTC as described above in the "RTC" section.
|
2014-07-01 23:09:47 +02:00
|
|
|
|
|
2014-06-29 15:40:37 +02:00
|
|
|
|
NOTE: If you want the RTC to preserve time over power cycles, you
|
|
|
|
|
|
will need to install a battery in the battery holder (J12) and close
|
|
|
|
|
|
the jumper, JP13.
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
12. Support for HSMCI0 is built-in by default. The SAMA4D4-EK provides
|
2014-06-30 22:26:09 +02:00
|
|
|
|
two SD memory card slots: (1) a full size SD card slot (J10), and
|
|
|
|
|
|
(2) a microSD memory card slot (J11). The full size SD card slot
|
|
|
|
|
|
connects via HSMCI0; the microSD connects vi HSMCI1. Support for
|
|
|
|
|
|
the microSD slot could also be enabled with the settings provided
|
2014-06-29 19:26:41 +02:00
|
|
|
|
in the paragraph entitled "HSMCI Card Slots" above.
|
|
|
|
|
|
|
|
|
|
|
|
NOTE: For now I am boot off the microSD slot so, unless are booting
|
2014-06-30 22:26:09 +02:00
|
|
|
|
in a different manner, this HSMCI1 slot may not be useful to you
|
|
|
|
|
|
anyway.
|
|
|
|
|
|
|
2014-07-30 00:35:47 +02:00
|
|
|
|
The auto-mounter is also enabled. See the section above entitled
|
|
|
|
|
|
"Auto-Mounter".
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
13. Networking is supported via EMAC0. See the "Networking" section
|
2014-07-01 01:52:59 +02:00
|
|
|
|
above for detailed configuration settings. DHCP is not used in
|
|
|
|
|
|
this configuration; rather, a hard-coded IP address of 10.0.0.2 is
|
|
|
|
|
|
used with a netmask of 255.255.255.0. The host is assumed to be
|
|
|
|
|
|
10.0.0.1 in places. You can reconfigure to enabled DHCPC or to
|
|
|
|
|
|
change these addresses as you see fit.
|
|
|
|
|
|
|
2014-08-06 20:30:35 +02:00
|
|
|
|
See also the "kludge" for EMAC that is documented in the To-Do list
|
|
|
|
|
|
at the end of this README file.
|
2014-07-01 00:08:29 +02:00
|
|
|
|
|
2014-08-06 20:30:35 +02:00
|
|
|
|
The configuration option CONFIG_NSH_NETINIT_THREAD is enabled so
|
|
|
|
|
|
that NSH network bring-up asynchronously and in parallel on a
|
|
|
|
|
|
separate thread. This eliminates the (visible) networking bring-up
|
2014-08-18 15:24:47 +02:00
|
|
|
|
delay. This networking initialization feature by itself has
|
|
|
|
|
|
some limitations:
|
|
|
|
|
|
|
|
|
|
|
|
- If no network is connected, the network bring-up will fail and
|
|
|
|
|
|
the network initialization thread will simply exit. There are no
|
|
|
|
|
|
retries and no mechanism to know if the network initialization was
|
|
|
|
|
|
successful.
|
2014-08-06 20:30:35 +02:00
|
|
|
|
|
2014-08-18 15:24:47 +02:00
|
|
|
|
- Furthermore, there is no support for detecting loss of the network
|
|
|
|
|
|
connection and recovery of networking when the connection is restored.
|
2014-08-06 20:30:35 +02:00
|
|
|
|
|
2014-08-18 15:24:47 +02:00
|
|
|
|
Both of these shortcomings can be eliminated by enabling the network
|
|
|
|
|
|
monitor as described above in the "Network Monitor" paragraph.
|
2014-07-02 20:17:01 +02:00
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
14. I2C Tool. This configuration enables TWI0 (only) as an I2C master
|
2014-07-02 21:51:57 +02:00
|
|
|
|
device. This configuration also supports the I2C tool at
|
|
|
|
|
|
apps/system/i2c that can be used to peek and poke I2C devices on the
|
|
|
|
|
|
TIW0 bus. See the discussion above under "I2C Tool" for detailed
|
|
|
|
|
|
configuration settings.
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
15. Support the USB low-, high- and full-speed OHCI host driver is enabled
|
2014-07-03 19:22:15 +02:00
|
|
|
|
enabled with the NuttX configuration file as described in the section
|
|
|
|
|
|
above entitled "USB High-Speed Host". Only port B and port C, the
|
|
|
|
|
|
larger "Type A" connectors, are enabled; port A (the smaller OTG
|
|
|
|
|
|
connector) is reserved for future use with USB device (but could also
|
|
|
|
|
|
be configured as a USB host port if desired).
|
2014-06-29 17:36:15 +02:00
|
|
|
|
|
2014-07-03 19:22:15 +02:00
|
|
|
|
Support for Mass Storage Class and USB (Boot) Keyboard class is also
|
2014-07-04 00:25:02 +02:00
|
|
|
|
enabled. The keyboard class was useful for verifying that low-speed
|
|
|
|
|
|
devices can connect successfully, but is otherwise not used by this
|
|
|
|
|
|
configuration. Feel free to disable it if you like:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_USBHOST_HIDKBD=n
|
|
|
|
|
|
|
|
|
|
|
|
You could also replace the NSH stdin device to take input from a USB
|
|
|
|
|
|
keyboard with:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_NSH_USBKBD=y
|
|
|
|
|
|
CONFIG_NSH_USBKBD_DEVNAME="/dev/kbda"
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-29 20:52:21 +02:00
|
|
|
|
The keyboard is currently configured to poll at 80 MSec intervals.
|
|
|
|
|
|
This is controlled by:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_HIDKBD_POLLUSEC=80000
|
|
|
|
|
|
|
|
|
|
|
|
which can be reduced if better keyboard response is required.
|
|
|
|
|
|
|
|
|
|
|
|
NOTE: You will not have access to the RAMLOG via the NSH dmseg command
|
|
|
|
|
|
if the USB keyboard is selected. You can still access NSH via Telnet
|
|
|
|
|
|
or you may want to disable the RAMLOG so that debug information comes
|
|
|
|
|
|
out on the console.
|
2014-07-04 01:08:59 +02:00
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
16. Support the USB high-speed USB device driver (UDPHS) is not enabled by
|
2014-07-03 19:22:15 +02:00
|
|
|
|
default but could be enabled by changing the NuttX configuration file as
|
|
|
|
|
|
described above in the section entitled "USB High-Speed Device."
|
|
|
|
|
|
|
2014-07-10 16:42:25 +02:00
|
|
|
|
17. Support for the maXTouch MXT768E touchscreen driver on the TM7000
|
|
|
|
|
|
LCD/Touchscreen module is enabled by default. See the section above
|
|
|
|
|
|
entitled "TM7000 LCD/Touchscreen" for detailed configuration information.
|
|
|
|
|
|
You will probably want to disable this option if you are not using the
|
|
|
|
|
|
TM7000 LCD/Touchscreen.
|
|
|
|
|
|
|
|
|
|
|
|
The Touchscreen test program is also built in. This test program can
|
|
|
|
|
|
be found in the source tree at apps/examples/touchscreen. Usage is
|
|
|
|
|
|
like:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> tc [<number-of-touches>]
|
|
|
|
|
|
|
2014-07-10 20:38:18 +02:00
|
|
|
|
18. Support for the TM7000 LCD is enabled by default. See the section above
|
|
|
|
|
|
entitled "TM7000 LCD/Touchscreen" for detailed configuration information.
|
|
|
|
|
|
You will probably want to disable this option if you are not using the
|
|
|
|
|
|
TM7000 LCD.
|
|
|
|
|
|
|
|
|
|
|
|
There are several LCD test programs available. One is built into this
|
|
|
|
|
|
configuration: apps/examples/nx. The NX example is a simple test
|
|
|
|
|
|
using the NuttX graphics system (NX). This test case focuses on general
|
|
|
|
|
|
window controls, movement, mouse and keyboard input. It requires no
|
|
|
|
|
|
user interaction.
|
|
|
|
|
|
|
2014-07-10 22:00:56 +02:00
|
|
|
|
The test is executed by simply typing:
|
|
|
|
|
|
|
|
|
|
|
|
nsh> nx
|
|
|
|
|
|
|
2014-07-10 20:38:18 +02:00
|
|
|
|
There are several simple graphics examples under apps/examples/ that
|
|
|
|
|
|
could be configured to verify LCD/graphics operation:
|
|
|
|
|
|
|
|
|
|
|
|
a. nxhello. Just displays "Hello, World!" at the center of the
|
|
|
|
|
|
display.
|
|
|
|
|
|
b. nximage. Displays the NuttX logo in the center of the display.
|
|
|
|
|
|
c. nxlines. Shows many fat lines. This generally looks like a
|
|
|
|
|
|
"clock" with a cicle and a rotating line in the center.
|
|
|
|
|
|
d. nxtext. This demonstrates scrolling text with pop-up windows on
|
|
|
|
|
|
top of the test. The pop-up windows come and go without
|
|
|
|
|
|
corrupting the scrolling text.
|
|
|
|
|
|
|
|
|
|
|
|
See apps/examples/README.txt for information about configuring these
|
|
|
|
|
|
examples.
|
|
|
|
|
|
|
2014-07-23 23:33:54 +02:00
|
|
|
|
19. NxPlayer
|
|
|
|
|
|
|
2014-09-17 19:47:00 +02:00
|
|
|
|
This configuration has the command line NxPlayer enabled. Support
|
|
|
|
|
|
for the WM8904 CODEC is built in.
|
2014-07-23 23:33:54 +02:00
|
|
|
|
|
2014-09-17 19:47:00 +02:00
|
|
|
|
NOTE: The WM8904 driver should not be included in the
|
|
|
|
|
|
configuration if you are using the Rev C version of the board
|
|
|
|
|
|
(there were some I2C communication issues for the WM8904 interface
|
2014-09-18 16:35:15 +02:00
|
|
|
|
on Rev C of the board):
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_SYSTEM_NXPLAYER=n
|
2014-07-23 23:33:54 +02:00
|
|
|
|
|
|
|
|
|
|
This configuration depends on media files in the default mountpoint
|
|
|
|
|
|
at /mnt/sdard. You will need to mount the media before running
|
2014-07-30 00:35:47 +02:00
|
|
|
|
NxPlayer, Here are the general steps to play a file:
|
2014-07-23 23:33:54 +02:00
|
|
|
|
|
|
|
|
|
|
a. You will need an (full size) SD card containing the .WAV files
|
|
|
|
|
|
that you want to play (.WAV is only format supported as of this
|
|
|
|
|
|
writing). That SD card should be inserted in the HSMCI0 media
|
|
|
|
|
|
slot A (best done before powering up).
|
|
|
|
|
|
|
2014-07-30 00:35:47 +02:00
|
|
|
|
b. If the NuttX auto-mounter is enabled and properly configured,
|
|
|
|
|
|
then the FAT file system appear at /mnt/sdcard. If the auto-
|
|
|
|
|
|
mounter is not enabled, then here are the steps to manually
|
|
|
|
|
|
mount the FAT file system:
|
|
|
|
|
|
|
|
|
|
|
|
Then from NSH prompt, you need to mount the media volume like:
|
2014-07-23 23:33:54 +02:00
|
|
|
|
|
2014-07-25 18:03:01 +02:00
|
|
|
|
nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard
|
|
|
|
|
|
|
2014-07-30 04:02:34 +02:00
|
|
|
|
NOTE: The auto-mounter is enabled by default in this
|
2014-07-30 00:35:47 +02:00
|
|
|
|
configuration.
|
2014-07-23 23:33:54 +02:00
|
|
|
|
|
|
|
|
|
|
c. Then you can run the media player like:
|
|
|
|
|
|
|
2014-07-25 18:03:01 +02:00
|
|
|
|
nsh> nxplayer
|
|
|
|
|
|
nxplayer> device pcm0
|
|
|
|
|
|
nxplayer> play <filename>
|
2014-07-23 23:33:54 +02:00
|
|
|
|
|
2014-09-18 22:29:20 +02:00
|
|
|
|
STATUS: Not yet functional. See the To-Do list at the bottom of this
|
|
|
|
|
|
README file.
|
|
|
|
|
|
|
2014-07-23 23:33:54 +02:00
|
|
|
|
20. The SAMA5D4-EK includes for an AT25 serial DataFlash. That support is
|
2014-07-03 19:22:15 +02:00
|
|
|
|
NOT enabled in this configuration. Support for that serial FLASH could
|
|
|
|
|
|
be enabled by modifying the NuttX configuration as described above in
|
|
|
|
|
|
the paragraph entitled "AT25 Serial FLASH".
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-07-23 23:33:54 +02:00
|
|
|
|
21. This example can be configured to exercise the watchdog timer test
|
2014-06-29 00:11:41 +02:00
|
|
|
|
(apps/examples/watchdog). See the detailed configuration settings in
|
|
|
|
|
|
the section entitled "Watchdog Timer" above.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-29 00:11:41 +02:00
|
|
|
|
STATUS:
|
2014-06-06 20:37:36 +02:00
|
|
|
|
See the To-Do list below
|
|
|
|
|
|
|
2014-09-13 23:45:26 +02:00
|
|
|
|
2014-8-30: Retesting today I am seeing a strange behavior: Serial
|
2014-08-30 18:43:58 +02:00
|
|
|
|
output is coming out in chunks with delays between the chunks. It
|
|
|
|
|
|
appears that something is not good in the serial port configuration.
|
2014-09-18 16:35:15 +02:00
|
|
|
|
I see no such chunky behavior in, for example, graphics output.
|
|
|
|
|
|
2014-9-17: I do not see that chunked output behavior. However, I do
|
|
|
|
|
|
notice that the serial output is sluggish if there is not network
|
|
|
|
|
|
cable connected. When the network connected the serial output is
|
|
|
|
|
|
responsive: Something must be keeping the system too busy when
|
|
|
|
|
|
there is not network (probably the network monitor).
|
2014-08-30 18:43:58 +02:00
|
|
|
|
|
2014-07-10 22:10:36 +02:00
|
|
|
|
nxwm:
|
|
|
|
|
|
|
|
|
|
|
|
This is a special configuration setup for the NxWM window manager
|
|
|
|
|
|
UnitTest. It integrates support for both the SAMA5 LCDC and the
|
|
|
|
|
|
SAMA5 ADC touchscreen controller and provides a more advance
|
|
|
|
|
|
graphics demo. It provides an interactive windowing experience.
|
|
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
NOTES:
|
|
|
|
|
|
|
|
|
|
|
|
1. The NxWM window manager is a tiny window manager tailored for use
|
|
|
|
|
|
with smaller LCDs but which is show here on the larger, SAMA5D4-EK
|
|
|
|
|
|
TM7000 LCD. It supports a toolchain, a start window, and
|
|
|
|
|
|
multiple application windows. However, to make the best use of
|
|
|
|
|
|
the visible LCD space, only one application window is visible at
|
|
|
|
|
|
at time.
|
|
|
|
|
|
|
|
|
|
|
|
The NxWM window manager can be found here:
|
|
|
|
|
|
|
|
|
|
|
|
nuttx-git/NxWidgets/nxwm
|
|
|
|
|
|
|
|
|
|
|
|
The NxWM unit test can be found at:
|
|
|
|
|
|
|
|
|
|
|
|
nuttx-git/NxWidgets/UnitTests/nxwm
|
|
|
|
|
|
|
|
|
|
|
|
Documentation for installing the NxWM unit test can be found here:
|
|
|
|
|
|
|
|
|
|
|
|
nuttx-git/NxWidgets/UnitTests/README.txt
|
|
|
|
|
|
|
|
|
|
|
|
2. This configuration is set up generally like the nsh configuration
|
|
|
|
|
|
except that:
|
|
|
|
|
|
|
|
|
|
|
|
- It boots into a graphic, window manage environment instead of
|
|
|
|
|
|
the serial console command line.
|
2014-09-20 23:01:50 +02:00
|
|
|
|
- The console command line is still available within NxTerm
|
2014-07-12 17:45:05 +02:00
|
|
|
|
windows.
|
|
|
|
|
|
- Obviously, the nx and touchscreen built in applications cannot
|
|
|
|
|
|
be supported.
|
|
|
|
|
|
|
2014-08-06 20:30:35 +02:00
|
|
|
|
Refer to the NOTES for the nsh configuration. Those also apply
|
|
|
|
|
|
for the nxwm configuration (other than the differences noted
|
|
|
|
|
|
above).
|
|
|
|
|
|
|
2014-07-23 23:20:54 +02:00
|
|
|
|
3. Here is the quick summary of the build steps. These steps assume
|
2014-07-12 17:45:05 +02:00
|
|
|
|
that you have the entire NuttX GIT in some directory ~/nuttx-git.
|
|
|
|
|
|
You may have these components installed elsewhere. In that case, you
|
|
|
|
|
|
will need to adjust all of the paths in the following accordingly:
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
a. Install the nxwm configuration
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
$ cd ~/nuttx-git/nuttx/tools
|
|
|
|
|
|
$ ./configure.sh sama5d4-ek/nxwm
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
b. Make the build context (only)
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
$ cd ..
|
|
|
|
|
|
$ . ./setenv.sh
|
|
|
|
|
|
$ make context
|
|
|
|
|
|
...
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
NOTE: the use of the setenv.sh file is optional. All that it
|
|
|
|
|
|
will do is to adjust your PATH variable so that the build system
|
|
|
|
|
|
can find your tools. If you use it, you will most likely need to
|
|
|
|
|
|
modify the script so that it has the correct path to your tool
|
|
|
|
|
|
binary directory.
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
c. Install the nxwm unit test
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
$ cd ~/nuttx-git/NxWidgets
|
|
|
|
|
|
$ tools/install.sh ~/nuttx-git/apps nxwm
|
|
|
|
|
|
Creating symbolic link
|
|
|
|
|
|
- To ~/nuttx-git/NxWidgets/UnitTests/nxwm
|
|
|
|
|
|
- At ~/nuttx-git/apps/external
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
d. Build the NxWidgets library
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
$ cd ~/nuttx-git/NxWidgets/libnxwidgets
|
|
|
|
|
|
$ make TOPDIR=~/nuttx-git/nuttx
|
|
|
|
|
|
...
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
e. Build the NxWM library
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
$ cd ~/nuttx-git/NxWidgets/nxwm
|
|
|
|
|
|
$ make TOPDIR=~/nuttx-git/nuttx
|
|
|
|
|
|
...
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
f. Built NuttX with the installed unit test as the application
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-12 17:45:05 +02:00
|
|
|
|
$ cd ~/nuttx-git/nuttx
|
|
|
|
|
|
$ make
|
2014-07-10 22:10:36 +02:00
|
|
|
|
|
2014-07-23 23:20:54 +02:00
|
|
|
|
4. NSH Console Access.
|
|
|
|
|
|
|
|
|
|
|
|
This configuration boots directly into a graphic, window manage
|
|
|
|
|
|
environment. There is no serial console. Some initial stdout
|
|
|
|
|
|
information will go to the USART3 serial output, but otherwise
|
|
|
|
|
|
the serial port will be silent.
|
|
|
|
|
|
|
|
|
|
|
|
Access to the NSH console is available in two ways:
|
|
|
|
|
|
|
2014-09-20 23:01:50 +02:00
|
|
|
|
a. The NxWM provides a graphics-based terminals (called NxTerms);
|
|
|
|
|
|
The console command line is still available within NxTerm
|
2014-07-29 20:52:21 +02:00
|
|
|
|
windows once NxWM is up and running. The console input (stdin) is
|
|
|
|
|
|
provided via a USB HID keyboard, but console output will go to the
|
2014-09-20 23:01:50 +02:00
|
|
|
|
NxTerm terminal. See below for more information about the USB
|
2014-07-29 20:52:21 +02:00
|
|
|
|
HID keyboard input,
|
2014-07-23 23:20:54 +02:00
|
|
|
|
|
2014-07-29 20:52:21 +02:00
|
|
|
|
| b. Telnet NSH sessions are still supported and this is, in general,
|
2014-07-23 23:20:54 +02:00
|
|
|
|
the convenient way to access the shell (and RAMLOG).
|
|
|
|
|
|
|
|
|
|
|
|
As with the NSH configuration, debug output will still go to the
|
|
|
|
|
|
circular RAMLOG buffer but cannot be accessed from a serial console.
|
2014-09-20 23:01:50 +02:00
|
|
|
|
Instead, you will need use the dmesg command from an NxTerm or
|
2014-07-23 23:20:54 +02:00
|
|
|
|
from a Telnet session to see the debug output
|
|
|
|
|
|
|
2014-07-29 20:52:21 +02:00
|
|
|
|
5. USB HID Keyboard Input
|
|
|
|
|
|
|
|
|
|
|
|
USB keyboard support is enabled in the default configuration, but
|
|
|
|
|
|
can be disabled:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_USBHOST_HIDKBD=y
|
|
|
|
|
|
|
|
|
|
|
|
Not all keyboards may be supported; only "boot" keyboards will be
|
|
|
|
|
|
recognized.
|
|
|
|
|
|
|
|
|
|
|
|
The USB keyboard is configured to replace the NSH stdin device some
|
2014-07-31 01:01:51 +02:00
|
|
|
|
that NSH will take input from the USB keyboard. This has to be
|
2014-09-20 23:01:50 +02:00
|
|
|
|
done a little differently for the case of NxWM::CNxTerms than
|
2014-07-31 01:01:51 +02:00
|
|
|
|
in the standard NSH configuration. Here the relevant configuration
|
|
|
|
|
|
options are:
|
2014-07-29 20:52:21 +02:00
|
|
|
|
|
2014-07-31 01:01:51 +02:00
|
|
|
|
CONFIG_NXWM_KEYBOARD_USBHOST=y
|
|
|
|
|
|
CONFIG_NXWM_KEYBOARD_DEVPATH="/dev/kbda"
|
2014-07-29 20:52:21 +02:00
|
|
|
|
|
2014-09-20 23:01:50 +02:00
|
|
|
|
NSH will then automatically start when the NxTerm is started:
|
2014-07-29 20:52:21 +02:00
|
|
|
|
|
|
|
|
|
|
NuttShell (NSH) NuttX-7.3
|
|
|
|
|
|
nsh>
|
|
|
|
|
|
|
2014-09-20 23:01:50 +02:00
|
|
|
|
When the NxTerm comes up, it will attempt to use /dev/kbda device
|
2014-07-31 01:01:51 +02:00
|
|
|
|
for input. Obviously, you cannot enter text if there is no keyboard
|
|
|
|
|
|
but otherwise you will not see any indication whether a keyboard is
|
|
|
|
|
|
connected or not.
|
2014-07-29 20:52:21 +02:00
|
|
|
|
|
2014-07-31 01:01:51 +02:00
|
|
|
|
If the keyboard is detached, you not be able to enter text until the
|
|
|
|
|
|
keyboard is reconnected. Again, there is no other special indication
|
|
|
|
|
|
of the keyboard state.
|
2014-07-29 20:52:21 +02:00
|
|
|
|
|
|
|
|
|
|
The keyboard is currently configured to poll at 80 MSec intervals.
|
|
|
|
|
|
That might not be fast enough for you if you are a fast typist. This
|
|
|
|
|
|
polling rate is controlled by:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_HIDKBD_POLLUSEC=80000
|
|
|
|
|
|
|
|
|
|
|
|
which can be reduced if better keyboard response is required.
|
|
|
|
|
|
|
|
|
|
|
|
6. Media Player
|
2014-07-23 23:20:54 +02:00
|
|
|
|
|
2014-09-17 19:47:00 +02:00
|
|
|
|
This configuration has the media player application enabled. Support
|
|
|
|
|
|
for the WM8904 CODEC is built in.
|
2014-07-23 23:20:54 +02:00
|
|
|
|
|
2014-09-17 19:47:00 +02:00
|
|
|
|
NOTE: The WM8904 driver should not be included in the
|
|
|
|
|
|
configuration if you are using the Rev C version of the board
|
|
|
|
|
|
(there were some I2C communication issues for the WM8904 interface
|
2014-09-18 16:35:15 +02:00
|
|
|
|
on Rev C of the board). You may either (1) Disable audio support
|
|
|
|
|
|
and disable the Media Player GUI, or (2) configure the "NULL" audio
|
|
|
|
|
|
device so that the GUI will function correctly (with no sound,
|
|
|
|
|
|
of course).
|
2014-07-23 23:20:54 +02:00
|
|
|
|
|
|
|
|
|
|
This configuration depends on media files in the default mountpoint
|
2014-07-25 18:03:01 +02:00
|
|
|
|
at /mnt/sdard (configurable). If you see the message "Media volume
|
|
|
|
|
|
not mounted" in the media player text box, then you will need to
|
|
|
|
|
|
mount the media volume:
|
2014-07-23 23:20:54 +02:00
|
|
|
|
|
|
|
|
|
|
a. You will need an (full size) SD card containing the .WAV files
|
|
|
|
|
|
that you want to play (.WAV is only format supported as of this
|
|
|
|
|
|
writing). That SD card should be inserted in the HSMCI0 media
|
|
|
|
|
|
slot A (best done before powering up).
|
|
|
|
|
|
|
2014-07-30 04:02:34 +02:00
|
|
|
|
b. If the NuttX auto-mounter is enabled and properly configured,
|
|
|
|
|
|
then the FAT file system appear at /mnt/sdcard. If the auto-
|
|
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|
mounter is not enabled, then you need to perform the following
|
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|
|
|
steps to manually mount the FAT file system:
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Then from NSH prompt, you need to mount the media volume like:
|
2014-07-25 18:03:01 +02:00
|
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nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard
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|
I usually do this via Telnet from the host PC. Here is a
|
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|
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|
complete host Telnet session:
|
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$ telnet 10.0.0.2
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Trying 10.0.0.2...
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Connected to 10.0.0.2.
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Escape character is '^]'.
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|
NuttShell (NSH) NuttX-7.3
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nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard
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nsh> exit
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Connection closed by foreign host.
|
2014-07-23 23:20:54 +02:00
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|
2014-07-30 04:02:34 +02:00
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NOTE: The auto-mounter is enabled by default in this
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|
configuration.
|
2014-07-23 23:20:54 +02:00
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c. Then if you close the old media player window and bring up a
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new one, you should see the .WAV files on the SD card in the lis
|
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|
box.
|
2014-07-10 22:10:36 +02:00
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|
2014-09-18 22:29:20 +02:00
|
|
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|
STATUS: Despite the comments above, WM8904 support has *NOT* yet
|
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|
|
|
|
been enabled in this configuration. This is because it is not yet
|
|
|
|
|
|
working in the nxwm configuration. See the To-Do list at the
|
|
|
|
|
|
bottom of this README file. The current nxwm configuration is still
|
|
|
|
|
|
set up for the Rev C board using the "NULL" audio device.
|
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|
2014-07-31 16:18:07 +02:00
|
|
|
|
Things still to do:
|
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|
a. Currently the list box is not scrollable. So you will be
|
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|
|
limited to the number .WAV files that will fit in the existing
|
|
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|
|
|
list box (a scrollable list box class exists, but has not been
|
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|
|
|
integrated into the media play demo).
|
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|
b. Although the lower level NxPlayer does support them, there are
|
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|
|
no controls at the GUI for balance or tone/equalization.
|
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|
c. There is no visual indication of play status or end of playing.
|
2014-07-10 22:10:36 +02:00
|
|
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|
|
STATUS:
|
|
|
|
|
|
See the To-Do list below
|
|
|
|
|
|
|
2014-06-27 01:04:53 +02:00
|
|
|
|
ramtest:
|
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|
2014-06-14 21:11:42 +02:00
|
|
|
|
This is a stripped down version of NSH that runs out of
|
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|
|
|
internal SRAM. It configures SDRAM and supports only the RAM test
|
|
|
|
|
|
at apps/examples/ramtest. This configuration is useful for
|
|
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|
|
|
bringing up SDRAM.
|
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|
|
NOTES:
|
2014-06-27 00:42:06 +02:00
|
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|
2014-06-14 21:11:42 +02:00
|
|
|
|
1. This configuration uses the the USART3 for the serial console
|
|
|
|
|
|
which is available at the "DBGU" RS-232 connector (J24). That
|
|
|
|
|
|
is easily changed by reconfiguring to (1) enable a different
|
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|
|
|
|
serial peripheral, and (2) selecting that serial peripheral as
|
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|
|
the console device.
|
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|
|
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|
|
2. By default, this configuration is set up to build on Windows
|
|
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|
|
under either a Cygwin or MSYS environment using a recent, Windows-
|
|
|
|
|
|
native, generic ARM EABI GCC toolchain (such as the CodeSourcery
|
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|
|
|
|
toolchain). Both the build environment and the toolchain
|
|
|
|
|
|
selection can easily be changed by reconfiguring:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_HOST_WINDOWS=y : Windows operating system
|
|
|
|
|
|
CONFIG_WINDOWS_CYGWIN=y : POSIX environment under windows
|
|
|
|
|
|
CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows
|
|
|
|
|
|
|
|
|
|
|
|
If you are running on Linux, make *certain* that you have
|
|
|
|
|
|
CONFIG_HOST_LINUX=y *before* the first make or you will create a
|
|
|
|
|
|
corrupt configuration that may not be easy to recover from. See
|
|
|
|
|
|
the warning in the section "Information Common to All Configurations"
|
|
|
|
|
|
for further information.
|
|
|
|
|
|
|
|
|
|
|
|
3. This configuration executes out of internal SRAM flash and is
|
|
|
|
|
|
loaded into SRAM by the boot ROM SDRAM from NAND, Serial
|
|
|
|
|
|
DataFlash, SD card or from a TFTPC sever via the Boot ROM.
|
2014-06-27 00:42:06 +02:00
|
|
|
|
Data also is positioned in SRAM.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
|
2014-06-18 21:03:10 +02:00
|
|
|
|
Here are the steps that I use to execute this program in SRAM
|
|
|
|
|
|
using only the ROM Bootloader:
|
|
|
|
|
|
|
|
|
|
|
|
a) Hold the DIS_BOOT button and
|
|
|
|
|
|
|
2014-06-19 01:40:06 +02:00
|
|
|
|
b) With the DIS_BOOT button pressed, power cycle the board. A
|
|
|
|
|
|
reset does not seem to be sufficient.
|
2014-06-18 21:03:10 +02:00
|
|
|
|
|
|
|
|
|
|
c) The serial should show RomBOOT in a terminal window (at 115200
|
|
|
|
|
|
8N1) and nothing more.
|
|
|
|
|
|
|
|
|
|
|
|
d) Press ENTER in the terminal window a few times to enable JTAG.
|
|
|
|
|
|
|
|
|
|
|
|
e) Start the Segger GDB server. It should successfully connect to
|
2014-06-19 01:40:06 +02:00
|
|
|
|
the board via JTAG (if JTAG was correctly enabled in step d)).
|
|
|
|
|
|
|
|
|
|
|
|
f) Start GDB, connect, to the GDB server, load NuttX, and debug.
|
2014-06-18 21:03:10 +02:00
|
|
|
|
|
|
|
|
|
|
gdb> target remote localhost:2331
|
|
|
|
|
|
gdb> mon halt (don't do mon reset)
|
|
|
|
|
|
gdb> load nuttx
|
|
|
|
|
|
gdb> mon reg pc (make sure that the PC is 0x200040
|
|
|
|
|
|
gdb> ... and debug ...
|
|
|
|
|
|
|
2014-06-06 20:37:36 +02:00
|
|
|
|
To-Do List
|
|
|
|
|
|
==========
|
|
|
|
|
|
|
|
|
|
|
|
1) Neither USB OHCI nor EHCI support Isochronous endpoints. Interrupt
|
|
|
|
|
|
endpoint support in the EHCI driver is untested (but works in similar
|
|
|
|
|
|
EHCI drivers).
|
|
|
|
|
|
|
2014-07-30 19:20:06 +02:00
|
|
|
|
2) HSCMI. CONFIG_MMCSD_MULTIBLOCK_DISABLE=y is set to disable multi-block
|
|
|
|
|
|
transfers because of some issues that I saw during testing. The is very
|
|
|
|
|
|
low priority to me but might be important to you if you are need very
|
|
|
|
|
|
high performance SD card accesses.
|
2014-07-23 15:58:10 +02:00
|
|
|
|
|
2014-07-22 17:25:38 +02:00
|
|
|
|
3) There is a kludge in place in the Ethernet code to work around a problem
|
2014-07-02 20:17:01 +02:00
|
|
|
|
that I see. The problem that I see is as follows:
|
|
|
|
|
|
|
|
|
|
|
|
a. To send packets, the software keeps a queue of TX descriptors in
|
|
|
|
|
|
memory.
|
|
|
|
|
|
|
|
|
|
|
|
b. When a packet is ready to be sent, the software clears bit 31 of a
|
|
|
|
|
|
status word in the descriptor meaning that the descriptor now
|
|
|
|
|
|
"belongs" to the hardware.
|
|
|
|
|
|
|
|
|
|
|
|
c. The hardware sets bit 31 in memory when the transfer completes.
|
|
|
|
|
|
|
|
|
|
|
|
The problem that I see is that:
|
|
|
|
|
|
|
|
|
|
|
|
d. Occasionally bit 31 of the status word is not cleared even though
|
|
|
|
|
|
the Ethernet packet was successfully sent.
|
|
|
|
|
|
|
|
|
|
|
|
Since the software does not see bit 31 set, it seems like the transfer
|
|
|
|
|
|
did not complete and the Ethernet locks up.
|
|
|
|
|
|
|
|
|
|
|
|
The workaround/kludge that is in place makes this assumption: If an
|
|
|
|
|
|
Ethernet transfer complete interrupt is received, then at least one
|
|
|
|
|
|
packet must have completed. In this case, the software ignores
|
|
|
|
|
|
checking the USED bit for one packet.
|
|
|
|
|
|
|
|
|
|
|
|
With this kludge in place, the driver appears to work fine. However,
|
|
|
|
|
|
there is a danger to what I have done: If a spurious interrupt
|
|
|
|
|
|
occurs, than the USED bit would not be set and the transfer would be
|
|
|
|
|
|
lost.
|
|
|
|
|
|
|
2014-07-22 17:25:38 +02:00
|
|
|
|
4) Some drivers may require some adjustments if you intend to run from SDRAM.
|
2014-06-06 20:37:36 +02:00
|
|
|
|
That is because in this case macros like BOARD_MCK_FREQUENCY are not constants
|
|
|
|
|
|
but are instead function calls: The MCK clock frequency is not known in
|
|
|
|
|
|
advance but instead has to be calculated from the bootloader PLL configuration.
|
|
|
|
|
|
|
|
|
|
|
|
As of this writing, all drivers have been converted to run from SDRAM except
|
|
|
|
|
|
for the PWM and the Timer/Counter drivers. These drivers use the
|
|
|
|
|
|
BOARD_MCK_FREQUENCY definition in more complex ways and will require some
|
|
|
|
|
|
minor redesign and re-testing before they can be available.
|
2014-09-18 22:29:20 +02:00
|
|
|
|
|
|
|
|
|
|
5) The WM8904 is not usable on the Rev C version of the board due to some I2C
|
|
|
|
|
|
related issues. These issues seem to be resolved on the Rev E version of
|
|
|
|
|
|
the board. However, the WM8904 is still not function:
|
|
|
|
|
|
|
|
|
|
|
|
a) With a logic analyzer I can see that the I2C writes to the WM8904
|
|
|
|
|
|
device look good. This is the same setup that was used in the working
|
2014-09-19 18:12:03 +02:00
|
|
|
|
SAMA5D3x-EK nxplayer configuration and so should be correct (you
|
|
|
|
|
|
cannot even get this far on the Rev C board).
|
2014-09-18 22:29:20 +02:00
|
|
|
|
b) I2C readback of the WM8904 registers (via CONFIG_WM8904_REGDUMP) does
|
|
|
|
|
|
not, however, show proper registers contents. Groups of extra bits
|
|
|
|
|
|
(apparently 0x01fd) appear to be set in many registers on reading.
|
|
|
|
|
|
This is assumed to be some interference from some other device on the
|
|
|
|
|
|
I2C bus rather that errors in writing. This assumption is credible
|
|
|
|
|
|
since the bad bits appear immediately after resetting the WM8904 and
|
|
|
|
|
|
before anything has been written to it.
|
|
|
|
|
|
c) Also with the logic analyzer, I can that the 12MHz MCLK input is
|
|
|
|
|
|
being provided to the WM8904.
|
2014-09-19 18:12:03 +02:00
|
|
|
|
d) However, no bit clock (BLCK) is being generated by the WM8904. This
|
|
|
|
|
|
should appear on both AUDIO_TK0_PB27 and AUDIO_RK0_PB28, but I do not
|
|
|
|
|
|
see a clock on these pins.
|
2014-09-18 22:29:20 +02:00
|
|
|
|
e) With no BCLK, I would expect the SSC0 DMA transfers to hang... they do
|
|
|
|
|
|
not. No errors of any kind are detected by the firmware; it believes
|
|
|
|
|
|
that it is successfully playing .WAV files. This leads to believe
|
|
|
|
|
|
that there may be some schematic error.
|
|
|
|
|
|
e) There is, of course, no audio output.
|
|
|
|
|
|
|
|
|
|
|
|
You can replace the WM8904 with the "NULL" audio driver by:
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_AUDIO_WM8904=n : Disable the WM8904
|
|
|
|
|
|
CONFIG_SAMA5_SSC0=n : Disable SSC0
|
|
|
|
|
|
|
|
|
|
|
|
CONFIG_AUDIO_NULL=y : Enable the NULL audio device
|
|
|
|
|
|
CONFIG_AUDIO_NULL_BUFFER_SIZE=8192
|
|
|
|
|
|
CONFIG_AUDIO_NULL_MSG_PRIO=1
|
|
|
|
|
|
CONFIG_AUDIO_NULL_NUM_BUFFERS=4
|
|
|
|
|
|
CONFIG_AUDIO_NULL_WORKER_STACKSIZE=768
|
|
|
|
|
|
CONFIG_AUDIO_NUM_BUFFERS=2
|
