2014-03-10 22:18:46 +01:00
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README
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2014-03-12 22:03:59 +01:00
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======
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2014-03-10 22:18:46 +01:00
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This README discusses issues unique to NuttX configurations for the Atmel
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SAM4E-EK development. This board features the SAM4E16 MCU running at 96
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or 120MHz.
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Contents
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2014-03-12 22:03:59 +01:00
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========
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2014-03-10 22:18:46 +01:00
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2014-03-11 17:44:00 +01:00
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- Atmel Studio 6.1
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2014-03-12 17:59:19 +01:00
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- Loading Code with J-Link
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2014-10-13 17:48:46 +02:00
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- Loading Code OpenOCD
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2014-03-12 17:59:19 +01:00
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- Writing to FLASH using SAM-BA
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2014-03-10 22:18:46 +01:00
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- LEDs
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- Serial Console
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2014-03-12 22:03:59 +01:00
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- Networking Support
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2014-03-14 19:35:17 +01:00
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- AT25 Serial FLASH
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2014-03-18 16:31:02 +01:00
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- USB Full-Speed Device
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2014-03-21 17:45:12 +01:00
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- HSMCI
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- Touchscreen
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2014-08-20 19:45:01 +02:00
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- ILI9325/41-Based LCD
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2014-03-10 22:18:46 +01:00
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- SAM4E-EK-specific Configuration Options
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- Configurations
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2014-03-11 17:44:00 +01:00
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Atmel Studio 6.1
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2014-03-12 22:03:59 +01:00
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================
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2014-03-10 22:18:46 +01:00
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2014-03-11 17:44:00 +01:00
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You can use Atmel Studio 6.1 to load and debug code.
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2014-03-10 22:18:46 +01:00
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2014-03-11 17:44:00 +01:00
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- To load code into FLASH:
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2014-03-10 22:18:46 +01:00
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2014-03-11 17:44:00 +01:00
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Tools menus: Tools -> Device Programming.
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2014-03-10 22:18:46 +01:00
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Configure the debugger and chip and you are in business.
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2014-03-11 17:44:00 +01:00
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- Debugging the NuttX Object File:
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2014-08-19 19:27:39 +02:00
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1) Rename object file from nuttx to nuttx.elf. That is an extension that
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2014-03-12 17:59:19 +01:00
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will be recognized by the file menu.
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2014-03-11 17:44:00 +01:00
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2014-03-12 17:59:19 +01:00
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2) Select the project name, the full path to the NuttX object (called
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just nuttx with no extension), and chip. Take the time to resolve
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all of the source file linkages or else you will not have source
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level debug!
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2014-03-10 22:18:46 +01:00
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2014-03-12 17:59:19 +01:00
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File menu: File -> Open -> Open object file for debugging
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- Select nuttx.elf object file
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- Select AT91SAM4E16
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- Select files for symbols as desired
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- Select debugger
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2014-03-10 22:18:46 +01:00
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2014-03-12 17:59:19 +01:00
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3) Debug menu: Debug -> Start debugging and break
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- This will reload the nuttx.elf file into FLASH
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STATUS: At this point, Atmel Studio 6.1 claims that my object files are
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not readable. A little more needs to be done to wring out this procedure.
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2014-10-13 17:48:46 +02:00
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Loading Code with J-Link
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========================
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2014-03-12 17:59:19 +01:00
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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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2014-03-23 00:30:17 +01:00
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STATUS: As of this writing, I have not been successful writing to FLASH
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using the GDB server; the write succeeds with no complaints, but the contents
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of the FLASH memory remain unchanged. This may be because of issues with
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GPNVM1 settings and flash lock bits? In any event, the GDB server works
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great for debugging after writing the program to FLASH using SAM-BA.
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2014-03-12 17:59:19 +01:00
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2014-10-13 17:48:46 +02:00
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Loading Code OpenOCD
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====================
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2019-08-05 15:13:48 +02:00
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OpenOCD scripts are available in the boards/sam4e-ek/tools directory.
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2014-10-13 17:48:46 +02:00
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These scripts were used with OpenOCD 0.8.0. If you use a version after
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OpenOCD 0.8.0, then you should comment out the following lines in the
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openocd.cfg file:
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# set CHIPNAME SAM4E16E
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# source [find target/at91sam4sXX.cfg]
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And uncomment this line:
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source [find board/atmel_sam4e_ek.cfg]
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This have been reported to work under Linux, but I have not been
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2014-10-13 20:05:49 +02:00
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successful using it under Windows OpenOCD 0.8.0 with libUSB. I get
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2014-10-13 17:48:46 +02:00
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Open On-Chip Debugger 0.8.0 (2014-04-28-08:42)
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...
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Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED
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Error: Cannot find jlink Interface! Please check connection and permissions.
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...
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This is telling me that the Segger J-Link USB driver is incompatible
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with libUSB. It may be necessary to replace the Segger J-Link driver
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2015-07-10 20:09:58 +02:00
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with the driver from libusb-win32-device-bin on sourceforge.
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2014-10-13 17:48:46 +02:00
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- Go into Control Panel/System/Device Manager and update the J-Link
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driver to point at the new jlink.inf file made with the
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2014-10-13 20:05:49 +02:00
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libusb-win32/bin inf-wizard. Browse to the unsigned driver
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2014-10-13 17:48:46 +02:00
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pointed to by the inf, libusb0.dll from the libusb-win32-device-bin
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distribution to complete the installation.
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- The Segger driver appeared under "Universal Serial Bus Controllers"
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in Device Manager (winXP) while the libusb-win32 driver appears as
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new top level Dev Mgr category "LibUSB-Win32 Devices".
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2014-03-12 17:59:19 +01:00
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Writing to FLASH using SAM-BA
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2014-03-12 22:03:59 +01:00
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=============================
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2014-03-12 17:59:19 +01:00
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Assumed starting configuration:
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1. You have installed the J-Link USB driver
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Using SAM-BA to write to FLASH:
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1. Start the SAM-BA application, selecting (1) the SAM-ICE/J-Link
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port, and (2) board = at91sam4e16-ek.
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2. The SAM-BA menu should appear.
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3. Select the FLASH tab and enable FLASH access
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4. "Send" the file to flash
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5. Enable "Boot from Flash (GPNVM1)
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6. Reset the board.
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STATUS: Works great!
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2014-03-10 22:18:46 +01:00
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LEDs
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2014-03-12 22:03:59 +01:00
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====
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2014-03-10 22:18:46 +01:00
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The SAM4E-EK board has three, user-controllable LEDs labelled D2 (blue),
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D3 (amber), and D4 (green) on the board. Usage of these LEDs is defined
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in include/board.h and src/up_leds.c. They are encoded as follows:
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SYMBOL Meaning D3* D2 D4
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------------------- ----------------------- ------- ------- -------
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LED_STARTED NuttX has been started OFF OFF OFF
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LED_HEAPALLOCATE Heap has been allocated OFF OFF ON
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LED_IRQSENABLED Interrupts enabled OFF ON OFF
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LED_STACKCREATED Idle stack created OFF ON ON
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LED_INIRQ In an interrupt** N/C FLASH N/C
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LED_SIGNAL In a signal handler*** N/C N/C FLASH
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LED_ASSERTION An assertion failed FLASH N/C N/C
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LED_PANIC The system has crashed FLASH N/C N/C
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* If D2 and D4 are statically on, then NuttX probably failed to boot
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and these LEDs will give you some indication of where the failure was
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** The normal state is D3=OFF, D4=ON and D2 faintly glowing. This faint
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glow is because of timer interrupts that result in the LED being
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illuminated on a small proportion of the time.
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*** D4 may also flicker normally if signals are processed.
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Serial Console
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2014-03-12 22:03:59 +01:00
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==============
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2014-03-10 22:18:46 +01:00
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By default, all of these configurations use UART0 for the NuttX serial
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2014-03-12 17:59:19 +01:00
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console. UART0 corresponds to the DB-9 connector J17 labelled "DBGU".
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This is a male connector and will require a female-to-female, NUL modem
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cable to connect to a PC.
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2014-03-10 22:18:46 +01:00
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2014-03-12 17:59:19 +01:00
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An alternate is USART1 which connects to the other DB-9 connector labelled
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"USART1". USART1 is not enabled by default unless specifically noted
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2014-03-10 22:18:46 +01:00
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otherwise in the configuration description. A NUL modem cable must be
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used with the port as well.
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2014-03-12 17:59:19 +01:00
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NOTE: To avoid any electrical conflict, the RS232 and RS485 transceiver
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are isolated from the receiving line PA21.
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- Chose RS485 channel: Close 1-2 pins on JP11 and set PA23 to high level
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- Chose RS232 channel: Close 2-3 pins on JP11 and set PA23 to low level
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2014-03-10 22:18:46 +01:00
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By default serial console is configured for 115000, 8-bit, 1 stop bit, and
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no parity.
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2014-03-14 19:35:17 +01:00
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Networking Support
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==================
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2014-03-12 22:03:59 +01:00
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Networking support via the can be added to NSH by selecting the following
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configuration options.
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Selecting the EMAC peripheral
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-----------------------------
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System Type -> SAM34 Peripheral Support
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CONFIG_SAM34_EMAC=y : Enable the EMAC peripheral
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System Type -> EMAC device driver options
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CONFIG_SAM34_EMAC_NRXBUFFERS=16 : Set aside some RS and TX buffers
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CONFIG_SAM34_EMAC_NTXBUFFERS=4
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CONFIG_SAM34_EMAC_PHYADDR=1 : KSZ8051 PHY is at address 1
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CONFIG_SAM34_EMAC_AUTONEG=y : Use autonegotiation
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CONFIG_SAM34_EMAC_MII=y : Only the MII interface is supported
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CONFIG_SAM34_EMAC_PHYSR=30 : Address of PHY status register on KSZ8051
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CONFIG_SAM34_EMAC_PHYSR_ALTCONFIG=y : Needed for KSZ8051
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CONFIG_SAM34_EMAC_PHYSR_ALTMODE=0x7 : " " " " " "
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CONFIG_SAM34_EMAC_PHYSR_10HD=0x1 : " " " " " "
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CONFIG_SAM34_EMAC_PHYSR_100HD=0x2 : " " " " " "
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CONFIG_SAM34_EMAC_PHYSR_10FD=0x5 : " " " " " "
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CONFIG_SAM34_EMAC_PHYSR_100FD=0x6 : " " " " " "
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PHY selection. Later in the configuration steps, you will need to select
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the KSZ8051 PHY for EMAC (See below)
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Networking Support
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CONFIG_NET=y : Enable Neworking
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CONFIG_NET_SOCKOPTS=y : Enable socket operations
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2018-07-04 22:10:40 +02:00
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CONFIG_NET_ETH_PKTSIZE=562 : Maximum packet size 1518 is more standard
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2014-03-12 22:03:59 +01:00
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CONFIG_NET_TCP=y : Enable TCP/IP networking
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CONFIG_NET_TCPBACKLOG=y : Support TCP/IP backlog
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CONFIG_NET_UDP=y : Enable UDP networking
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CONFIG_NET_BROADCAST=y : Needed for DNS name resolution
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CONFIG_NET_ICMP=y : Enable ICMP networking
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2017-10-23 16:45:12 +02:00
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CONFIG_NET_ICMP_SOCKET=y : Needed for NSH ping command
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2014-03-12 22:03:59 +01:00
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: Defaults should be okay for other options
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Device drivers -> Network Device/PHY Support
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CONFIG_NETDEVICES=y : Enabled PHY selection
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CONFIG_ETH0_PHY_KSZ8051=y : Select the KSZ8051 PHY (for EMAC)
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Application Configuration -> Network Utilities
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2015-07-10 20:09:58 +02:00
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CONFIG_NETDB_DNSCLIENT=y : Enable host address resolution
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2014-03-12 22:03:59 +01:00
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CONFIG_NETUTILS_TELNETD=y : Enable the Telnet daemon
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CONFIG_NETUTILS_TFTPC=y : Enable TFTP data file transfers for get and put commands
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2014-07-03 00:04:25 +02:00
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CONFIG_NETUTILS_NETLIB=y : Network library support is needed
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2014-03-12 22:03:59 +01:00
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CONFIG_NETUTILS_WEBCLIENT=y : Needed for wget support
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: Defaults should be okay for other options
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Application Configuration -> NSH Library
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CONFIG_NSH_TELNET=y : Enable NSH session via Telnet
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2014-03-13 16:03:03 +01:00
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CONFIG_NSH_IPADDR=0x0a000002 : Select a fixed IP address
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2014-03-12 22:03:59 +01:00
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CONFIG_NSH_DRIPADDR=0x0a000001 : IP address of gateway/host PC
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CONFIG_NSH_NETMASK=0xffffff00 : Netmask
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CONFIG_NSH_NOMAC=y : Need to make up a bogus MAC address
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: Defaults should be okay for other options
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2014-03-13 16:03:03 +01:00
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You can also enable enable the DHCPC client for networks that use
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dynamically assigned address:
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Application Configuration -> Network Utilities
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CONFIG_NETUTILS_DHCPC=y : Enables the DHCP client
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Networking Support
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CONFIG_NET_UDP=y : Depends on broadcast UDP
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Application Configuration -> NSH Library
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CONFIG_NET_BROADCAST=y
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CONFIG_NSH_DHCPC=y : Tells NSH to use DHCPC, not
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: the fixed addresses
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2014-03-12 22:03:59 +01:00
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Using the network with NSH
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--------------------------
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So what can you do with this networking support? First you see that
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NSH has several new network related commands:
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ifconfig, ifdown, ifup: Commands to help manage your network
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get and put: TFTP file transfers
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wget: HTML file transfers
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ping: Check for access to peers on the network
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Telnet console: You can access the NSH remotely via telnet.
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You can also enable other add on features like full FTP or a Web
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Server or XML RPC and others. There are also other features that
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you can enable like DHCP client (or server) or network name
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resolution.
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By default, the IP address of the SAM4E-EK will be 10.0.0.2 and
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it will assume that your host is the gateway and has the IP address
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10.0.0.1.
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nsh> ifconfig
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eth0 HWaddr 00:e0:de:ad:be:ef at UP
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IPaddr:10.0.0.2 DRaddr:10.0.0.1 Mask:255.255.255.0
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You can use ping to test for connectivity to the host (Careful,
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Window firewalls usually block ping-related ICMP traffic). On the
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target side, you can:
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nsh> ping 10.0.0.1
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PING 10.0.0.1 56 bytes of data
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56 bytes from 10.0.0.1: icmp_seq=1 time=0 ms
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56 bytes from 10.0.0.1: icmp_seq=2 time=0 ms
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56 bytes from 10.0.0.1: icmp_seq=3 time=0 ms
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56 bytes from 10.0.0.1: icmp_seq=4 time=0 ms
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56 bytes from 10.0.0.1: icmp_seq=5 time=0 ms
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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 SAM4E-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
|
2020-04-18 16:05:09 +02:00
|
|
|
df hexdump mb mv source
|
2014-03-12 22:03:59 +01:00
|
|
|
|
|
|
|
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
|
2014-03-13 16:03:03 +01:00
|
|
|
a network because additional time will be required to fail with timeout
|
|
|
|
errors.
|
2014-03-12 22:03:59 +01:00
|
|
|
|
2014-08-18 15:24:47 +02:00
|
|
|
This delay will be especially long if the board is not connected to
|
|
|
|
a network. On the order of a minute! You will probably think that
|
|
|
|
NuttX has crashed! And then, when it finally does come up, the
|
|
|
|
network will not be available.
|
|
|
|
|
|
|
|
Network Initialization Thread
|
|
|
|
-----------------------------
|
|
|
|
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
|
|
|
|
altogether. This current implementation, however, 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 (it could perform a network Ioctl to see if the link is
|
|
|
|
up and it now, keep trying, but it does not do that now).
|
|
|
|
|
|
|
|
- Furthermore, there is currently no support for detecting loss of
|
|
|
|
network connection and recovery of the connection (similarly, this
|
|
|
|
thread could poll periodically for network status, but does not).
|
|
|
|
|
|
|
|
Both of these shortcomings could be eliminated by enabling the network
|
|
|
|
monitor. See the SAMA5 configurations for a description of what it would
|
|
|
|
take to incorporate the network monitor feature.
|
|
|
|
|
2014-03-14 19:35:17 +01:00
|
|
|
AT25 Serial FLASH
|
|
|
|
=================
|
|
|
|
|
|
|
|
Connections
|
|
|
|
-----------
|
|
|
|
|
|
|
|
Both the SAM4E-EK include an Atmel AT25DF321A, 32-megabit, 2.7-volt
|
|
|
|
SPI serial flash. The SPI
|
|
|
|
connection is as follows:
|
|
|
|
|
|
|
|
------ ------- ---------------
|
|
|
|
SAM4E AT25 SAM4E
|
|
|
|
GPIO PIN FUNCTION
|
|
|
|
------ ------- ---------------
|
|
|
|
PA13 SI MOSI
|
|
|
|
PA12 SO MIS0
|
|
|
|
PA14 SCK SPCK
|
|
|
|
PA5 /CS NPCS3 (pulled high externally)
|
|
|
|
------ ------- ---------------
|
|
|
|
|
|
|
|
Configuration
|
|
|
|
-------------
|
|
|
|
|
|
|
|
Support for the serial FLASH can be enabled in these configurations. These
|
|
|
|
are the relevant configuration settings. These settings (1) Enable SPI0,
|
|
|
|
(2) Enable DMAC0 to support DMA transfers on SPI for best performance,
|
|
|
|
(3) Enable the AT25 Serial FLASH, and (3) Set up NuttX to configure the
|
|
|
|
file system on the AT25 FLASH:
|
|
|
|
|
|
|
|
System Type -> ATSAM3/4 Peripheral Support
|
|
|
|
CONFIG_SAM34_SPI0=y : Enable SPI0
|
|
|
|
CONFIG_SAM34_DMAC0=y : Enable DMA controller 0
|
|
|
|
|
|
|
|
System Type -> SPI device driver options
|
|
|
|
CONFIG_SAM34_SPI_DMA=y : Use DMA for SPI transfers
|
|
|
|
CONFIG_SAM34_SPI_DMATHRESHOLD=4 : Don't DMA for small transfers
|
|
|
|
|
|
|
|
Device Drivers -> SPI Driver Support
|
|
|
|
CONFIG_SPI=y : Enable SPI support
|
|
|
|
CONFIG_SPI_EXCHANGE=y : Support the exchange method
|
|
|
|
|
|
|
|
Device Drivers -> Memory Technology Device (MTD) Support
|
|
|
|
CONFIG_MTD=y : Enable MTD support
|
|
|
|
CONFIG_MTD_AT25=y : Enable the AT25 driver
|
|
|
|
CONFIG_AT25_SPIMODE=0 : Use SPI mode 0
|
|
|
|
CONFIG_AT25_SPIFREQUENCY=20000000 : Use SPI frequency 12MHz
|
|
|
|
|
|
|
|
The AT25 is capable of operation at 20MHz. However, if you experience
|
|
|
|
any issues with the AT25, then lower this frequency may give more
|
|
|
|
predictable performance.
|
|
|
|
|
|
|
|
File Systems -> FAT
|
|
|
|
CONFIG_FS_FAT=y : Enable and configure FAT
|
|
|
|
CONFIG_FAT_LCNAMES=y : Upper/lower case names
|
|
|
|
CONFIG_FAT_LFN=y : Long file name support (See NOTE)
|
|
|
|
CONFIG_FAT_MAXFNAME=32 : Limit filename sizes to 32 bytes
|
|
|
|
|
|
|
|
NOTE: Use care if you plan to use FAT long file name feature in a product;
|
|
|
|
There are issues with certain Microsoft patents on the long file name
|
|
|
|
technology.
|
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization
|
|
|
|
|
|
|
|
Board Selection
|
2014-07-29 23:34:31 +02:00
|
|
|
CONFIG_SAM4EEK_AT25_BLOCKMOUNT=y : Mounts AT25 for NSH
|
2014-03-14 19:35:17 +01:00
|
|
|
CONFIG_SAM4EEK_AT25_FTL=y : Create block driver for FAT
|
|
|
|
|
|
|
|
You can then format the AT25 FLASH for a FAT file system and mount the
|
|
|
|
file system at /mnt/at25 using these NSH commands:
|
|
|
|
|
|
|
|
nsh> mkfatfs /dev/mtdblock0
|
|
|
|
nsh> mount -t vfat /dev/mtdblock0 /mnt/at25
|
|
|
|
|
|
|
|
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
|
|
|
|
This is a test
|
|
|
|
|
2014-03-18 16:31:02 +01:00
|
|
|
USB Full-Speed Device
|
|
|
|
=====================
|
|
|
|
|
|
|
|
Basic USB Full-Speed Device Configuration
|
|
|
|
-----------------------------------------
|
|
|
|
|
2014-03-18 23:33:36 +01:00
|
|
|
Support the USB full-speed device (UDP) driver can be enabled with these
|
2014-03-18 16:31:02 +01:00
|
|
|
NuttX configuration settings.
|
|
|
|
|
|
|
|
Device Drivers -> USB Device Driver Support
|
|
|
|
CONFIG_USBDEV=y : Enable USB device support
|
|
|
|
CONFIG_USBDEV_DUALSPEED=n : Device does not support High-Speed
|
|
|
|
CONFIG_USBDEV_DMA=n : Device does not use DMA
|
|
|
|
|
|
|
|
System Type -> ATSAM3/4 Peripheral Support
|
|
|
|
CONFIG_SAM34_UDP=y : Enable UDP Full Speed USB device
|
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization
|
|
|
|
|
|
|
|
Mass Storage Class
|
|
|
|
------------------
|
|
|
|
|
|
|
|
The Mass Storage Class (MSC) class driver can be selected for use with
|
2014-03-23 22:48:10 +01:00
|
|
|
UDP. Note: The following assumes that the internal AT25 Serial FLASH
|
2014-03-18 16:31:02 +01:00
|
|
|
is configured to support a FAT file system through an FTL layer as
|
|
|
|
described about under "AT25 Serial FLASH".
|
|
|
|
|
|
|
|
Device Drivers -> USB Device Driver Support
|
|
|
|
CONFIG_USBMSC=y : Enable the USB MSC class driver
|
2014-03-20 22:21:26 +01:00
|
|
|
CONFIG_USBMSC_EPBULKOUT=1 : Use EP1 for the BULK OUT endpoint
|
|
|
|
CONFIG_USBMSC_EPBULKIN=2 : Use EP2 for the BULK IN endpoint
|
2014-03-25 23:11:33 +01:00
|
|
|
CONFIG_USBMSC_BULKINREQLEN=64 : (Defaults for full speed)
|
|
|
|
CONFIG_USBMSC_BULKOUTREQLEN=64 :
|
|
|
|
: Defaults for other settings as well?
|
2014-03-18 16:31:02 +01:00
|
|
|
Board Selection
|
|
|
|
CONFIG_SAM4EEK_AT25_BLOCKDEVICE=y : Export AT25 serial FLASH device
|
|
|
|
CONFIG_SAM4EEK_HSMCI_BLOCKDEVICE=n : Don't export HSMCI SD card
|
|
|
|
|
|
|
|
Note: If properly configured, you could export the HSMCI SD card instead
|
|
|
|
of the internal AT25 Serial FLASH.
|
|
|
|
|
|
|
|
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:
|
|
|
|
|
2014-03-25 21:34:07 +01:00
|
|
|
"/dev/mmcsd0" would export the HSMCI SD slot (not currently available,
|
|
|
|
see the "HSMCI" section).
|
2014-03-18 16:31:02 +01:00
|
|
|
|
|
|
|
"/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.
|
|
|
|
|
2014-03-25 23:11:33 +01:00
|
|
|
STATUS:
|
|
|
|
|
|
|
|
2014-3-25: Marginally functional. Very slow to come up. USB analyzer
|
|
|
|
shows several resets before the host decides that it is
|
|
|
|
happy with the device. There are no obvious errors in the
|
2014-03-26 18:38:47 +01:00
|
|
|
USB data capture. Testing is insufficient. This needs to
|
|
|
|
be revisited.
|
2014-03-25 23:11:33 +01:00
|
|
|
|
2014-03-26 21:03:33 +01:00
|
|
|
Last tested at 96MHz with the CMCC disabled.
|
|
|
|
|
2014-03-18 16:31:02 +01:00
|
|
|
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
|
2014-03-21 17:45:12 +01:00
|
|
|
CONFIG_CDCACM_EPINTIN=1 : Select endpoint numbers
|
|
|
|
CONFIG_CDCACM_EPBULKOUT=2
|
|
|
|
CONFIG_CDCACM_EPBULKIN=3
|
2014-03-18 16:31:02 +01:00
|
|
|
|
|
|
|
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:
|
2014-03-21 17:45:12 +01:00
|
|
|
CONFIG_SYSTEM_CDCACM=y : Enable an CDC/ACM example
|
|
|
|
CONFIG_SYSTEM_CDCACM_DEVMINOR=0 : Use /dev/ttyUSB0
|
|
|
|
|
2014-03-22 16:27:43 +01:00
|
|
|
NOTES:
|
|
|
|
|
|
|
|
1. You cannot have both the CDC/ACM and the MSC class drivers enabled
|
|
|
|
simultaneously in the way described here. If you want to use both, then
|
|
|
|
you will need to consider a USB "composite" devices that support supports
|
|
|
|
both interfaces. There are no instructures here for setting up the USB
|
|
|
|
composite device, but there are other examples in the NuttX board support
|
|
|
|
directories that can be used for reference.
|
|
|
|
|
|
|
|
2. Linux supports the CDC/ACM driver out of the box. Windows, on the other
|
2018-04-04 17:32:39 +02:00
|
|
|
than requires that you first install a serial driver (a .inf file).
|
2014-03-18 16:31:02 +01:00
|
|
|
|
2014-03-26 18:38:47 +01:00
|
|
|
3. There is hand-shaking to pace incoming serial data. As a result, you may
|
|
|
|
experience data loss due to RX overrun errors. The overrun errors occur
|
|
|
|
when more data is received than can be buffered in memory on the target.
|
|
|
|
|
|
|
|
At present, the only workaround is to increase the amount of buffering
|
|
|
|
in the target. That allow the target to accept short bursts of larger
|
|
|
|
volumes of data (but would still fail on sustained, high speed incoming
|
|
|
|
data. The following configuration options can be changed to increase
|
|
|
|
the buffering.
|
|
|
|
|
|
|
|
1. RX buffer size. All incoming data is buffered by the serial driver
|
|
|
|
until it can be read by the application. The default size of this
|
|
|
|
RX buffer is only 256 but can be increased as you see fit:
|
|
|
|
|
|
|
|
CONFIG_CDCACM_RXBUFSIZE=256 : Default RX buffer size is only 256 bytes
|
|
|
|
|
|
|
|
2. Upstream from the RX buffers are USB read request buffers. Each
|
|
|
|
buffer is the maximum size of one USB packet (64 byte) and that cannot
|
|
|
|
really be changed. But if you want to increase this upstream buffering
|
|
|
|
capability, you can increase the number of available read requests.
|
|
|
|
The default is four, providing an additional buffering capability of
|
|
|
|
of 4*64=256 bytes.
|
|
|
|
|
|
|
|
Each read request receives data from USB, copies the data into the
|
|
|
|
serial RX buffer, and then is available to receive more data. This
|
|
|
|
recycling of read requests stalls as soon as the serial RX buffer is
|
|
|
|
full. Data loss occurs when there are no available read requests to
|
|
|
|
accept the next packet from the host. So increasing the number of
|
|
|
|
read requests can also help to minimize RX overrun:
|
|
|
|
|
|
|
|
CONFIG_CDCACM_NRDREQS=4 : Default is only 4 read requests
|
|
|
|
|
2014-03-25 23:11:33 +01:00
|
|
|
STATUS:
|
|
|
|
|
|
|
|
2013-2-23: Checks out OK. See discussion of the usbnsh configuration
|
|
|
|
below.
|
|
|
|
|
2014-03-18 16:31:02 +01:00
|
|
|
Debugging USB Device
|
|
|
|
--------------------
|
|
|
|
|
|
|
|
There is normal console debug output available that can be enabled with
|
2016-06-11 22:14:08 +02:00
|
|
|
CONFIG_DEBUG_FEATURES + CONFIG_DEBUG_USB. However, USB device operation is very
|
2014-03-18 16:31:02 +01:00
|
|
|
time critical and enabling this debug output WILL interfere with the
|
2014-03-18 23:33:36 +01:00
|
|
|
operation of the UDP. USB device tracing is a less invasive way to get
|
2014-03-18 16:31:02 +01:00
|
|
|
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)
|
|
|
|
|
2014-03-23 20:32:39 +01:00
|
|
|
If you get data loss in the trace buffer, then you may want to increase the
|
|
|
|
CONFIG_USBDEV_TRACE_NRECORDS. I have used buffers up to 4096 records to
|
|
|
|
avoid data loss.
|
|
|
|
|
2014-03-18 16:31:02 +01:00
|
|
|
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:
|
2016-06-30 20:24:33 +02:00
|
|
|
CONFIG_USBMONITOR=y : Enable the USB monitor daemon
|
|
|
|
CONFIG_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size
|
|
|
|
CONFIG_USBMONITOR_PRIORITY=50 : USB monitor daemon priority
|
|
|
|
CONFIG_USBMONITOR_INTERVAL=1 : Dump trace data every second
|
|
|
|
CONFIG_USBMONITOR_TRACEINIT=y : Enable TRACE output
|
|
|
|
CONFIG_USBMONITOR_TRACECLASS=y
|
|
|
|
CONFIG_USBMONITOR_TRACETRANSFERS=y
|
|
|
|
CONFIG_USBMONITOR_TRACECONTROLLER=y
|
|
|
|
CONFIG_USBMONITOR_TRACEINTERRUPTS=y
|
2014-03-18 16:31:02 +01:00
|
|
|
|
|
|
|
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.
|
|
|
|
|
2014-03-21 17:45:12 +01:00
|
|
|
HSMCI
|
|
|
|
=====
|
|
|
|
|
|
|
|
Enabling HSMCI support. The SAM3U-KE provides a an SD memory card slot.
|
|
|
|
Support for the SD slot can be enabled with the following settings:
|
|
|
|
|
|
|
|
System Type->ATSAM3/4 Peripheral Support
|
|
|
|
CONFIG_SAM34_HSMCI=y : Enable HSMCI support
|
|
|
|
CONFIG_SAM34_DMAC0=y : DMAC support is needed by HSMCI
|
|
|
|
|
|
|
|
System Type
|
|
|
|
CONFIG_SAM34_GPIO_IRQ=y : PIO interrupts needed
|
|
|
|
CONFIG_SAM34_GPIOA_IRQ=y : Card detect pin is on PIOA
|
|
|
|
|
|
|
|
Device Drivers -> MMC/SD Driver Support
|
|
|
|
CONFIG_MMCSD=y : Enable MMC/SD support
|
2014-03-24 17:23:56 +01:00
|
|
|
CONFIG_MMCSD_NSLOTS=1 : One slot per driver instance
|
2021-12-21 12:55:38 +01:00
|
|
|
CONFIG_MMCSD_HAVE_CARDDETECT=y : Supports card-detect PIOs
|
2014-03-21 17:45:12 +01:00
|
|
|
CONFIG_MMCSD_SDIO=y : SDIO-based MMC/SD support
|
2021-12-21 12:55:38 +01:00
|
|
|
CONFIG_MMCSD_MULTIBLOCK_LIMIT=1 : Probably works but is untested
|
2014-03-24 17:23:56 +01:00
|
|
|
|
2014-03-21 17:45:12 +01:00
|
|
|
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
|
2014-03-24 17:23:56 +01:00
|
|
|
: Defaults for other settings okay
|
2014-03-21 17:45:12 +01:00
|
|
|
|
|
|
|
Application Configuration -> NSH Library
|
|
|
|
CONFIG_NSH_ARCHINIT=y : NSH board-initialization
|
2014-03-24 17:23:56 +01:00
|
|
|
CONFIG_NSH_MMCSDSLOTNO=0 : Only one slot, slot 0
|
|
|
|
|
|
|
|
After an SD card is successfully initialized, the block device /dev/mmcsd0
|
|
|
|
will be available. To mount the SD card, use the following NSH command:
|
|
|
|
|
|
|
|
nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard
|
|
|
|
|
|
|
|
The SD card contents will then be available under /mnt/sdcard.
|
2014-03-21 17:45:12 +01:00
|
|
|
|
2014-03-25 21:34:07 +01:00
|
|
|
NOTES:
|
|
|
|
|
|
|
|
1. DMA is not currently functional and without DMA, there may not be
|
|
|
|
reliable data transfers at high speeds due to data overrun problems.
|
|
|
|
The current HSMCI driver supports DMA via the DMAC. However, the data
|
|
|
|
sheet only discusses PDC-based HSMCI DMA (although there is a DMA
|
|
|
|
channel interface definition for HSMCI).
|
|
|
|
|
2014-03-26 21:03:33 +01:00
|
|
|
Bottom line: Untested and probably not usable on the SAM4E-EK in its
|
|
|
|
current form.
|
|
|
|
|
2014-03-21 17:45:12 +01:00
|
|
|
Touchscreen
|
|
|
|
===========
|
|
|
|
|
2014-03-27 17:38:21 +01:00
|
|
|
The NSH configuration can be used to verify the ADS7843E touchscreen on
|
|
|
|
the SAM4E-EK LCD. With these modifications, you can include the touchscreen
|
|
|
|
test program at apps/examples/touchscreen as an NSH built-in application.
|
|
|
|
You can enable the touchscreen and test by modifying the default
|
|
|
|
configuration in the following ways:
|
|
|
|
|
|
|
|
Device Drivers
|
|
|
|
CONFIG_SPI=y : Enable SPI support
|
|
|
|
CONFIG_SPI_EXCHANGE=y : The exchange() method is supported
|
|
|
|
|
|
|
|
CONFIG_INPUT=y : Enable support for input devices
|
2014-05-13 19:28:38 +02:00
|
|
|
CONFIG_INPUT_ADS7843E=y : Enable support for the ADS7843E
|
|
|
|
CONFIG_ADS7843E_SPIDEV=0 : Use SPI CS 0 for communication
|
2014-03-27 17:38:21 +01:00
|
|
|
CONFIG_ADS7843E_SPIMODE=0 : Use SPI mode 0
|
|
|
|
CONFIG_ADS7843E_FREQUENCY=1000000 : SPI BAUD 1MHz
|
|
|
|
CONFIG_ADS7843E_SWAPXY=y : If landscape orientation
|
|
|
|
CONFIG_ADS7843E_THRESHX=51 : These will probably need to be tuned
|
|
|
|
CONFIG_ADS7843E_THRESHY=39
|
|
|
|
|
|
|
|
System Type -> Peripherals:
|
|
|
|
CONFIG_SAM34_SPI0=y : Enable support for SPI
|
|
|
|
|
|
|
|
System Type:
|
|
|
|
CONFIG_SAM34_GPIO_IRQ=y : GPIO interrupt support
|
|
|
|
CONFIG_SAM34_GPIOA_IRQ=y : Enable GPIO interrupts from port A
|
|
|
|
|
|
|
|
Library Support:
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y : Work queue support required
|
|
|
|
|
|
|
|
Application Configuration:
|
|
|
|
CONFIG_EXAMPLES_TOUCHSCREEN=y : Enable the touchscreen built-in test
|
|
|
|
|
|
|
|
Defaults should be okay for related touchscreen settings. Touchscreen
|
|
|
|
debug output on UART0 can be enabled with:
|
|
|
|
|
|
|
|
Build Setup:
|
2016-06-11 22:14:08 +02:00
|
|
|
CONFIG_DEBUG_FEATURES=y : Enable debug features
|
|
|
|
CONFIG_DEBUG_INFO=y : Enable verbose debug output
|
|
|
|
CONFIG_DEBUG_INPUT=y : Enable debug output from input devices
|
2014-03-27 17:38:21 +01:00
|
|
|
|
2014-05-14 18:56:03 +02:00
|
|
|
STATUS: Verified 2014-05-14
|
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
ILI9325/41-Based LCD
|
2014-03-27 17:38:21 +01:00
|
|
|
=================
|
|
|
|
|
|
|
|
The SAM4E-EK carries a TFT transmissive LCD module with touch panel,
|
2014-08-20 19:45:01 +02:00
|
|
|
FTM280C34D. Its integrated driver IC is either a ILI9325 ILI9342 (the
|
|
|
|
original schematics said ILI9325, but I learned the hard way that I had
|
|
|
|
an ILI9341-based LCD). The LCD display area is 2.8 inches diagonally
|
|
|
|
measured, with a native resolution of 240 x 320
|
2014-03-27 17:38:21 +01:00
|
|
|
dots.
|
|
|
|
|
|
|
|
Connectivity
|
|
|
|
------------
|
|
|
|
|
|
|
|
The SAM4E16 communicates with the LCD through PIOC where an 8-bit
|
|
|
|
parallel "8080-like" protocol data bus has to be implemented in
|
|
|
|
software.
|
|
|
|
|
|
|
|
---- ----- --------- --------------------------------
|
|
|
|
PIN PIO SIGNAL NOTES
|
|
|
|
---- ----- --------- --------------------------------
|
|
|
|
1 VDD
|
|
|
|
2 PC7 DB17
|
|
|
|
3 PC6 DB16
|
|
|
|
4 PC5 DB15
|
|
|
|
5 PC4 DB14
|
|
|
|
6 PC3 DB13
|
|
|
|
7 PC2 DB12
|
|
|
|
8 PC1 DB11
|
|
|
|
9 PC0 DB10
|
|
|
|
10 DB9 Pulled low
|
|
|
|
11 DB8 Pulled low
|
|
|
|
12 DB7 Pulled low
|
|
|
|
13 DB6 Pulled low
|
|
|
|
14 DB5 Pulled low
|
|
|
|
15 DB4 Pulled low
|
|
|
|
16 DB3 Pulled low
|
|
|
|
17 DB2 Pulled low
|
|
|
|
18 DB1 Pulled low
|
|
|
|
19 DB0 Pulled low
|
|
|
|
---- ----- --------- --------------------------------
|
|
|
|
20 VDD
|
|
|
|
21 PC11 RD
|
|
|
|
22 PC8 WR
|
|
|
|
23 PC19 RS
|
2014-08-20 01:31:10 +02:00
|
|
|
24 PD18 CS Via J8, pulled high.
|
2014-03-27 17:38:21 +01:00
|
|
|
25 RESET Connects to NSRST
|
|
|
|
26 IM0 Pulled high
|
|
|
|
27 IM1 Grounded
|
|
|
|
28 GND
|
|
|
|
---- ----- --------- --------------------------------
|
|
|
|
29 [PC13] LED-A Backlight controls: PC13 enables
|
|
|
|
30 [PC13] LEDK1 AAT3155 charge pump that drives
|
|
|
|
31 [PC13] LEDK2 the backlight LEDs
|
|
|
|
32 [PC13] LEDK3
|
|
|
|
33 [PC13] LEDK4
|
|
|
|
34 [PC13] LEDK1
|
|
|
|
---- ----- --------- --------------------------------
|
|
|
|
35 Y+ These go to the ADS7843
|
|
|
|
36 Y- touchscreen controller.
|
|
|
|
37 X+
|
|
|
|
38 X-
|
|
|
|
39 NC
|
|
|
|
---- ----- --------- --------------------------------
|
|
|
|
|
2014-05-14 23:31:38 +02:00
|
|
|
Jumpers
|
|
|
|
-------
|
|
|
|
|
|
|
|
Make sure the JP8 is closed. This connects PD18 as the LCD CS.
|
|
|
|
|
2014-03-27 17:38:21 +01:00
|
|
|
Backlight
|
|
|
|
---------
|
|
|
|
|
|
|
|
LCD backlight is made of 4 white chip LEDs in parallel, driven by an
|
|
|
|
AAT3155 charge pump, MN4. The AAT3155 is controlled by the SAM3U4E
|
|
|
|
through a single line Simple Serial Control (S2Cwire) interface, which
|
|
|
|
permits to enable, disable, and set the LED drive current (LED
|
|
|
|
brightness control) from a 32-level logarithmic scale. Four resistors
|
|
|
|
R93/R94/R95/R96 are implemented for optional current limitation.
|
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
Configuration
|
|
|
|
-------------
|
2014-03-27 17:38:21 +01:00
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
This is the basic configuration that enables the ILI9341-based LCD.
|
|
|
|
Of course additional settings would be necessary to enable the graphic
|
|
|
|
capabilities to do anything with the LCD.
|
2014-03-27 17:38:21 +01:00
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
System Type -> AT91SAM3/4 Configuration Options
|
|
|
|
CONFIG_SAM34_SMC=y : SMC support
|
2014-03-27 17:38:21 +01:00
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
Device Drivers -> LCD Driver Support
|
|
|
|
CONFIG_LCD=y : Enable LCD support
|
|
|
|
CONFIG_LCD_MAXCONTRAST=1 : Value should not matter
|
|
|
|
CONFIG_LCD_MAXPOWER=64 : Must be > 16
|
|
|
|
CONFIG_LCD_LANDSCAPE=y : Landscape orientation
|
2014-03-27 17:38:21 +01:00
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
Board Selection
|
|
|
|
CONFIG_SAM4EEK_LCD_ILI9341=y : For the ILI9341-based LCD
|
|
|
|
CONFIG_SAM4EEK_LCD_RGB565=y : Color resolution
|
|
|
|
CONFIG_SAM4EEK_LCD_BGCOLOR=0x00 : Initial background color
|
2014-03-27 17:38:21 +01:00
|
|
|
|
|
|
|
STATUS:
|
2014-05-14 23:31:38 +02:00
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
2014-8-20: Updated. The ILI9341 LCD has some basic functionality.
|
|
|
|
Certainly it can transfer and display data fine. But there are some
|
|
|
|
issues with the geometry of data that appears on the LCD..
|
2014-08-20 01:31:10 +02:00
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
The LCD backlight is functional.
|
2014-03-21 17:45:12 +01:00
|
|
|
|
2014-03-10 22:18:46 +01:00
|
|
|
SAM4E-EK-specific Configuration Options
|
2014-03-12 22:03:59 +01:00
|
|
|
=======================================
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
CONFIG_ARCH - Identifies the arch/ subdirectory. This should
|
|
|
|
be set to:
|
|
|
|
|
|
|
|
CONFIG_ARCH=arm
|
|
|
|
|
|
|
|
CONFIG_ARCH_family - For use in C code:
|
|
|
|
|
|
|
|
CONFIG_ARCH_ARM=y
|
|
|
|
|
|
|
|
CONFIG_ARCH_architecture - For use in C code:
|
|
|
|
|
|
|
|
CONFIG_ARCH_CORTEXM3=y
|
|
|
|
|
|
|
|
CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
|
|
|
|
|
|
|
|
CONFIG_ARCH_CHIP="sam34"
|
|
|
|
|
|
|
|
CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
|
|
|
|
chip:
|
|
|
|
|
|
|
|
CONFIG_ARCH_CHIP_SAM34
|
|
|
|
CONFIG_ARCH_CHIP_SAM3U
|
|
|
|
CONFIG_ARCH_CHIP_ATSAM3U4
|
|
|
|
|
2019-08-05 15:13:48 +02:00
|
|
|
CONFIG_ARCH_BOARD - Identifies the boards/ subdirectory and
|
2014-03-10 22:18:46 +01:00
|
|
|
hence, the board that supports the particular chip or SoC.
|
|
|
|
|
|
|
|
CONFIG_ARCH_BOARD=sam4e-ek (for the SAM4E-EK development board)
|
|
|
|
|
|
|
|
CONFIG_ARCH_BOARD_name - For use in C code
|
|
|
|
|
|
|
|
CONFIG_ARCH_BOARD_SAM4EEK=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=0x00020000 (128Kb)
|
|
|
|
|
|
|
|
CONFIG_RAM_START - The start address of installed DRAM
|
|
|
|
|
|
|
|
CONFIG_RAM_START=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.
|
|
|
|
|
|
|
|
Individual subsystems can be enabled:
|
|
|
|
|
|
|
|
CONFIG_SAM34_SPI0 - Serial Peripheral Interface 0 (SPI0)
|
|
|
|
CONFIG_SAM34_SPI1 - Serial Peripheral Interface 1 (SPI1)
|
|
|
|
CONFIG_SAM34_SSC - Synchronous Serial Controller (SSC)
|
|
|
|
CONFIG_SAM34_TC0 - Timer/Counter 0 (TC0)
|
|
|
|
CONFIG_SAM34_TC1 - Timer/Counter 1 (TC1)
|
|
|
|
CONFIG_SAM34_TC2 - Timer/Counter 2 (TC2)
|
|
|
|
CONFIG_SAM34_TC3 - Timer/Counter 3 (TC3)
|
|
|
|
CONFIG_SAM34_TC4 - Timer/Counter 4 (TC4)
|
|
|
|
CONFIG_SAM34_TC5 - Timer/Counter 5 (TC5)
|
|
|
|
CONFIG_SAM34_TC6 - Timer/Counter 6 (TC6)
|
|
|
|
CONFIG_SAM34_TC7 - Timer/Counter 7 (TC6)
|
|
|
|
CONFIG_SAM34_TC8 - Timer/Counter 6 (TC8)
|
|
|
|
CONFIG_SAM34_PWM - Pulse Width Modulation (PWM) Controller
|
|
|
|
CONFIG_SAM34_TWIM0 - Two-wire Master Interface 0 (TWIM0)
|
|
|
|
CONFIG_SAM34_TWIS0 - Two-wire Slave Interface 0 (TWIS0)
|
|
|
|
CONFIG_SAM34_TWIM1B - Two-wire Master Interface 1 (TWIM1)
|
|
|
|
CONFIG_SAM34_TWIS1 - Two-wire Slave Interface 1 (TWIS1)
|
|
|
|
CONFIG_SAM34_UART0 - UART 0
|
|
|
|
CONFIG_SAM34_UART1 - UART 1
|
|
|
|
CONFIG_SAM34_USART0 - USART 0
|
|
|
|
CONFIG_SAM34_USART1 - USART 1
|
|
|
|
CONFIG_SAM34_USART2 - USART 2
|
|
|
|
CONFIG_SAM34_USART3 - USART 3
|
|
|
|
CONFIG_SAM34_AFEC0 - Analog Front End 0
|
|
|
|
CONFIG_SAM34_AFEC1 - Analog Front End 1
|
|
|
|
CONFIG_SAM34_DACC - Digital-to-Analog Converter
|
|
|
|
CONFIG_SAM34_ACC - Analog Comparator
|
|
|
|
CONFIG_SAM34_EMAC - Ethernet MAC
|
|
|
|
CONFIG_SAM34_CAN0 - CAN 0
|
|
|
|
CONFIG_SAM34_CAN1 - CAN 1
|
|
|
|
CONFIG_SAM34_SMC - Static Memory Controller
|
|
|
|
CONFIG_SAM34_NAND - NAND support
|
|
|
|
CONFIG_SAM34_PDCA - Peripheral DMA controller
|
2014-03-13 22:54:09 +01:00
|
|
|
CONFIG_SAM34_DMAC0 - DMA controller
|
2014-03-10 22:18:46 +01:00
|
|
|
CONFIG_SAM34_UDP - USB 2.0 Full-Speed device
|
|
|
|
CONFIG_SAM34_CHIPID - Chip ID
|
|
|
|
CONFIG_SAM34_RTC - Real Time Clock
|
|
|
|
CONFIG_SAM34_RTT - Real Time Timer
|
|
|
|
CONFIG_SAM34_WDT - Watchdog Timer
|
|
|
|
CONFIG_SAM34_EIC - Interrupt controller
|
|
|
|
CONFIG_SAM34_HSMCI - High Speed Multimedia Card Interface
|
|
|
|
|
|
|
|
Some subsystems can be configured to operate in different ways. The drivers
|
|
|
|
need to know how to configure the subsystem.
|
|
|
|
|
2014-03-23 22:48:10 +01:00
|
|
|
CONFIG_SAM34_GPIOA_IRQ
|
|
|
|
CONFIG_SAM34_GPIOB_IRQ
|
|
|
|
CONFIG_SAM34_GPIOC_IRQ
|
|
|
|
CONFIG_SAM34_GPIOD_IRQ
|
|
|
|
CONFIG_SAM34_GPIOE_IRQ
|
|
|
|
CONFIG_SAM34_GPIOF_IRQ
|
|
|
|
CONFIG_SAM34_GPIOG_IRQ
|
|
|
|
CONFIG_SAM34_GPIOH_IRQ
|
|
|
|
CONFIG_SAM34_GPIOJ_IRQ
|
|
|
|
CONFIG_SAM34_GPIOK_IRQ
|
|
|
|
CONFIG_SAM34_GPIOL_IRQ
|
|
|
|
CONFIG_SAM34_GPIOM_IRQ
|
|
|
|
CONFIG_SAM34_GPION_IRQ
|
|
|
|
CONFIG_SAM34_GPIOP_IRQ
|
|
|
|
CONFIG_SAM34_GPIOQ_IRQ
|
2014-03-10 22:18:46 +01:00
|
|
|
|
2016-05-25 19:21:48 +02:00
|
|
|
CONFIG_USART0_SERIALDRIVER
|
|
|
|
CONFIG_USART1_SERIALDRIVER
|
|
|
|
CONFIG_USART2_SERIALDRIVER
|
|
|
|
CONFIG_USART3_SERIALDRIVER
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
SAM3U specific device driver settings
|
|
|
|
|
|
|
|
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 USART1).
|
|
|
|
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_PARTIY - 0=no parity, 1=odd parity, 2=even parity
|
|
|
|
CONFIG_U[S]ARTn_2STOP - Two stop bits
|
|
|
|
|
|
|
|
LCD Options. Other than the standard LCD configuration options
|
2019-08-05 15:13:48 +02:00
|
|
|
(see boards/README.txt), the SAM4E-EK driver also supports:
|
2014-03-10 22:18:46 +01:00
|
|
|
|
2014-08-20 19:45:01 +02:00
|
|
|
CONFIG_LCD_LANDSCAPE - Define for 320x240 display "landscape"
|
|
|
|
support. Default is this 320x240 "landscape" orientation
|
|
|
|
CONFIG_LCD_RLANDSCAPE - Define for 320x240 display "reverse
|
|
|
|
landscape" support.
|
|
|
|
CONFIG_LCD_PORTRAIT - Define for 240x320 display "portrait"
|
|
|
|
orientation support.
|
|
|
|
CONFIG_LCD_RPORTRAIT - Define for 240x320 display "reverse
|
|
|
|
portrait" orientation support.
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
Configurations
|
2014-03-12 22:03:59 +01:00
|
|
|
==============
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
Information Common to All Configurations
|
|
|
|
----------------------------------------
|
|
|
|
Each SAM4E-EK configuration is maintained in a sub-directory and
|
|
|
|
can be selected as follow:
|
|
|
|
|
2019-08-06 00:53:39 +02:00
|
|
|
tools/configure.sh sam4e-ek:<subdir>
|
2014-03-10 22:18:46 +01:00
|
|
|
|
2017-04-26 18:12:13 +02:00
|
|
|
Before building, make sure the PATH environment variable includes the
|
|
|
|
correct path to the directory than holds your toolchain binaries.
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
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.
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
b. Execute 'make menuconfig' in nuttx/ in order to start the
|
|
|
|
reconfiguration process.
|
|
|
|
|
|
|
|
2. Unless stated otherwise, all configurations generate console
|
|
|
|
output on UART0 (J3).
|
|
|
|
|
2014-03-13 16:03:03 +01:00
|
|
|
3. All of these configurations are set up to build under Linux using the
|
|
|
|
EABI buildroot toolchain (unless stated otherwise in the description of
|
|
|
|
the configuration). That build selection can easily be reconfigured
|
|
|
|
using 'make menuconfig'. Here are the relevant current settings:
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
Build Setup:
|
|
|
|
CONFIG_HOST_LINUX=y : Linux or other pure POSIX invironment
|
2014-03-13 16:03:03 +01:00
|
|
|
|
2014-03-10 22:18:46 +01:00
|
|
|
System Type -> Toolchain:
|
|
|
|
CONFIG_ARMV7M_TOOLCHAIN_BUILDROOT=y : Buildroot toolchain
|
2014-03-13 16:03:03 +01:00
|
|
|
CONFIG_ARMV7M_OABI_TOOLCHAIN=n : EABI (Not OABI
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
If you want to use the Atmel GCC toolchain, for example, here are the
|
|
|
|
steps to do so:
|
|
|
|
|
|
|
|
Build Setup:
|
|
|
|
CONFIG_HOST_WINDOWS=y : Windows
|
|
|
|
CONFIG_HOST_CYGWIN=y : Using Cygwin or other POSIX environment
|
|
|
|
|
|
|
|
System Type -> Toolchain:
|
2022-04-18 18:02:33 +02:00
|
|
|
CONFIG_ARMV7M_TOOLCHAIN_GNU_EABI=y : General GCC EABI toolchain under windows
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
Library Routines ->
|
2020-02-17 13:19:25 +01:00
|
|
|
CONFIG_ARCH_SIZET_LONG=n : size_t is an unsigned int, not long
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
This re-configuration should be done before making NuttX or else the
|
|
|
|
subsequent 'make' will fail. If you have already attempted building
|
|
|
|
NuttX then you will have to 1) 'make distclean' to remove the old
|
2018-05-09 19:41:46 +02:00
|
|
|
configuration, 2) 'tools/configure.sh sam4e-ek/ksnh' to start
|
2014-03-10 22:18:46 +01:00
|
|
|
with a fresh configuration, and 3) perform the configuration changes
|
|
|
|
above.
|
|
|
|
|
|
|
|
Also, make sure that your PATH variable has the new path to your
|
|
|
|
Atmel tools. Try 'which arm-none-eabi-gcc' to make sure that you
|
2017-04-26 18:12:13 +02:00
|
|
|
are selecting the right tool.
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
See also the "NOTE about Windows native toolchains" in the section call
|
|
|
|
"GNU Toolchain Options" above.
|
|
|
|
|
|
|
|
Configuration sub-directories
|
|
|
|
-----------------------------
|
|
|
|
|
|
|
|
nsh:
|
|
|
|
Configures the NuttShell (nsh) located at examples/nsh. The
|
|
|
|
Configuration enables both the serial and telnetd NSH interfaces.
|
|
|
|
|
|
|
|
NOTES:
|
|
|
|
|
2014-03-27 00:07:08 +01:00
|
|
|
1. This configuration runs with a CPU clock of 120MHz and with the
|
|
|
|
the CMCC enabled. If you disable these, then you must also
|
|
|
|
re-calibrate the delay loop.
|
2014-03-26 21:03:33 +01:00
|
|
|
|
|
|
|
2. Default stack sizes are large and should really be tuned to reduce
|
2014-03-23 17:12:57 +01:00
|
|
|
the RAM footprint:
|
|
|
|
|
|
|
|
CONFIG_ARCH_INTERRUPTSTACK=2048
|
|
|
|
CONFIG_IDLETHREAD_STACKSIZE=1024
|
2021-12-23 04:56:43 +01:00
|
|
|
CONFIG_INIT_STACKSIZE=2048
|
2014-03-23 17:12:57 +01:00
|
|
|
CONFIG_PTHREAD_STACK_DEFAULT=2048
|
|
|
|
... and others ...
|
|
|
|
|
2014-03-26 21:03:33 +01:00
|
|
|
3. NSH built-in applications are supported.
|
2014-03-10 22:18:46 +01:00
|
|
|
|
|
|
|
Binary Formats:
|
|
|
|
CONFIG_BUILTIN=y : Enable support for built-in programs
|
|
|
|
|
2020-02-23 09:50:23 +01:00
|
|
|
Application Configuration:
|
2014-03-10 22:18:46 +01:00
|
|
|
CONFIG_NSH_BUILTIN_APPS=y : Enable starting apps from NSH command line
|
|
|
|
|
2014-03-26 21:03:33 +01:00
|
|
|
4. This configuration has the network enabled by default. This can be
|
2014-03-13 16:03:03 +01:00
|
|
|
easily disabled or reconfigured (See see the network related
|
|
|
|
configuration settings above in the section entitled "Networking").
|
|
|
|
|
|
|
|
NOTE: In boot-up sequence is very simple in this example; all
|
2014-08-19 18:38:35 +02:00
|
|
|
initialization is done sequentially (vs. in parallel) and so you will
|
2014-03-13 16:03:03 +01:00
|
|
|
not see the NSH prompt until all initialization is complete. The
|
|
|
|
network bring-up in particular will add some delay before the NSH
|
|
|
|
prompt appears. 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
|
|
|
|
a network because additional time will be required to fail with
|
2014-11-21 17:16:19 +01:00
|
|
|
timeout errors. This delay can be eliminated, however, if you enable
|
|
|
|
an NSH initialization option as described above in a paragraph
|
|
|
|
entitled, "Network Initialization Thread."
|
2014-03-13 16:03:03 +01:00
|
|
|
|
2014-03-21 17:45:12 +01:00
|
|
|
STATUS:
|
|
|
|
2014-3-13: The basic NSH serial console is working. Network support
|
|
|
|
has been verified.
|
|
|
|
|
2014-03-26 21:03:33 +01:00
|
|
|
5. This configuration supports a network with fixed IP address. You
|
2014-03-13 16:03:03 +01:00
|
|
|
may have to change these settings for your network:
|
|
|
|
|
|
|
|
CONFIG_NSH_IPADDR=0x0a000002 : IP address: 10.0.0.2
|
|
|
|
CONFIG_NSH_DRIPADDR=0x0a000001 : Gateway: 10.0.0.1
|
|
|
|
CONFIG_NSH_NETMASK=0xffffff00 : Netmask: 255.255.255.0
|
|
|
|
|
|
|
|
You can also enable enable the DHCPC client for networks that use
|
|
|
|
dynamically assigned address:
|
|
|
|
|
|
|
|
CONFIG_NETUTILS_DHCPC=y : Enables the DHCP client
|
|
|
|
CONFIG_NET_UDP=y : Depends on broadcast UDP
|
|
|
|
CONFIG_NET_BROADCAST=y
|
|
|
|
CONFIG_NSH_DHCPC=y : Tells NSH to use DHCPC, not
|
|
|
|
: the fixed addresses
|
|
|
|
|
2014-03-26 21:03:33 +01:00
|
|
|
6. This configuration has the DMA-based SPI0 and AT25 Serial FLASH
|
2014-03-14 19:35:17 +01:00
|
|
|
support enabled by default. This can be easily disabled or
|
|
|
|
reconfigured (See see the configuration settings and usage notes
|
|
|
|
above in the section entitled "AT25 Serial FLASH").
|
|
|
|
|
2014-03-22 16:27:43 +01:00
|
|
|
To mount the AT25 Serial FLASH as a FAT file system:
|
|
|
|
|
|
|
|
nsh>mount -t vfat /dev/mtdblock0 /mnt/at25
|
|
|
|
|
2014-03-21 17:45:12 +01:00
|
|
|
STATUS:
|
|
|
|
2014-3-14: The DMA-based SPI appears to be functional and can be used
|
|
|
|
to support a FAT file system on the AT25 Serial FLASH.
|
|
|
|
|
2014-03-26 21:03:33 +01:00
|
|
|
7. USB device support is not enabled in this configuration by default.
|
2014-03-22 16:27:43 +01:00
|
|
|
To add USB device support to this configuration, see the instructions
|
|
|
|
above under "USB Full-Speed Device."
|
2014-03-21 17:45:12 +01:00
|
|
|
|
|
|
|
STATUS:
|
2014-03-26 18:38:47 +01:00
|
|
|
2014-3-21: USB support is partially functional. Additional test and
|
|
|
|
integration is required. See STATUS in the "USB Full-Speed
|
|
|
|
Device" for further information
|
2014-03-22 16:27:43 +01:00
|
|
|
2014-3-22: USB seems to work properly (there are not obvious errors
|
2014-03-26 18:38:47 +01:00
|
|
|
in a USB bus capture. However, as of this data the AT25
|
|
|
|
does not mount on either the Linux or Windows host. This
|
|
|
|
needs to be retested.
|
2014-03-21 17:45:12 +01:00
|
|
|
|
2014-08-19 18:38:35 +02:00
|
|
|
8. Enabling HSMCI support. The SAM3U-KE provides a an SD memory card
|
2014-03-21 17:45:12 +01:00
|
|
|
slot. Support for the SD slot can be enabled following the
|
|
|
|
instructions provided above in the paragraph entitled "HSMCI."
|
|
|
|
|
2014-08-19 18:38:35 +02:00
|
|
|
9. This configuration has been used for verifying the touchscreen on
|
2014-05-13 19:28:38 +02:00
|
|
|
on the SAM4E-EK LCD module.
|
|
|
|
|
|
|
|
The NSH configuration can be used to verify the ADS7843E touchscreen on
|
|
|
|
the SAM4E-EK LCD. With these modifications, you can include the touchscreen
|
|
|
|
test program at apps/examples/touchscreen as an NSH built-in application.
|
|
|
|
You can enable the touchscreen and test by modifying the default
|
|
|
|
configuration in the following ways:
|
|
|
|
|
|
|
|
Device Drivers
|
|
|
|
CONFIG_SPI=y : Enable SPI support
|
|
|
|
CONFIG_SPI_EXCHANGE=y : The exchange() method is supported
|
|
|
|
|
|
|
|
CONFIG_INPUT=y : Enable support for input devices
|
|
|
|
CONFIG_INPUT_ADS7843E=y : Enable support for the ADS7843E
|
|
|
|
CONFIG_ADS7843E_SPIDEV=0 : Use SPI CS 0 for communication
|
|
|
|
CONFIG_ADS7843E_SPIMODE=0 : Use SPI mode 0
|
|
|
|
CONFIG_ADS7843E_FREQUENCY=1000000 : SPI BAUD 1MHz
|
|
|
|
CONFIG_ADS7843E_SWAPXY=y : If landscape orientation
|
|
|
|
CONFIG_ADS7843E_THRESHX=51 : These will probably need to be tuned
|
|
|
|
CONFIG_ADS7843E_THRESHY=39
|
|
|
|
|
|
|
|
System Type -> Peripherals:
|
|
|
|
CONFIG_SAM34_SPI0=y : Enable support for SPI
|
|
|
|
|
|
|
|
System Type:
|
|
|
|
CONFIG_SAM34_GPIO_IRQ=y : GPIO interrupt support
|
|
|
|
CONFIG_SAM34_GPIOA_IRQ=y : Enable GPIO interrupts from port A
|
|
|
|
|
|
|
|
Library Support:
|
|
|
|
CONFIG_SCHED_WORKQUEUE=y : Work queue support required
|
|
|
|
|
|
|
|
Application Configuration:
|
|
|
|
CONFIG_EXAMPLES_TOUCHSCREEN=y : Enable the touchscreen built-in test
|
|
|
|
|
|
|
|
Defaults should be okay for related touchscreen settings. Touchscreen
|
|
|
|
debug output on UART0 can be enabled with:
|
|
|
|
|
|
|
|
Build Setup:
|
2016-06-11 22:14:08 +02:00
|
|
|
CONFIG_DEBUG_FEATURES=y : Enable debug features
|
|
|
|
CONFIG_DEBUG_INFO=y : Enable verbose debug output
|
2014-05-13 19:28:38 +02:00
|
|
|
CONFIG_DEBUG_INPUT=y : Enable debug output from input devices
|
|
|
|
|
2014-08-19 18:38:35 +02:00
|
|
|
10. This configuration can be re-configured to test the on-board LCD
|
2014-05-13 19:28:38 +02:00
|
|
|
module.
|
|
|
|
|
|
|
|
System Type -> AT91SAM3/4 Configuration Options
|
|
|
|
CONFIG_SAM34_SMC=y : SMC support
|
|
|
|
|
|
|
|
Device Drivers -> LCD Driver Support
|
|
|
|
CONFIG_LCD=y : Enable LCD support
|
|
|
|
CONFIG_LCD_MAXCONTRAST=1 : Value should not matter
|
|
|
|
CONFIG_LCD_MAXPOWER=64 : Must be > 16
|
|
|
|
CONFIG_LCD_LANDSCAPE=y : Landscape orientation
|
|
|
|
|
|
|
|
Board Selection
|
2014-08-20 19:45:01 +02:00
|
|
|
CONFIG_SAM4EEK_LCD_ILI9341=y : For the ILI9341-based LCD
|
2014-05-13 19:28:38 +02:00
|
|
|
CONFIG_SAM4EEK_LCD_RGB565=y : Color resolution
|
|
|
|
CONFIG_SAM4EEK_LCD_BGCOLOR=0x00 : Initial background color
|
|
|
|
|
|
|
|
Graphics Support
|
2014-05-14 18:56:03 +02:00
|
|
|
CONFIG_NX=y : Enable Graphics support
|
|
|
|
CONFIG_NX_LCDDRIVER=y : LCD graphics device
|
2014-05-13 19:28:38 +02:00
|
|
|
|
|
|
|
Graphics Support -> Supported Pixel Depths
|
|
|
|
CONFIG_NX_DISABLE_1BPP=y : Only 16BPP supported
|
|
|
|
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 -> Font Selections
|
|
|
|
CONFIG_NXFONTS_CHARBITS=7
|
|
|
|
CONFIG_NXFONT_SANS23X27=y
|
2014-08-19 18:38:35 +02:00
|
|
|
CONFIG_NXFONT_SANS22X29B=y
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2014-05-13 19:28:38 +02:00
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Application Configuration -> Examples
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CONFIG_EXAMPLES_NXLINES=y
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CONFIG_EXAMPLES_NXLINES_BGCOLOR=0x0320
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CONFIG_EXAMPLES_NXLINES_LINEWIDTH=16
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CONFIG_EXAMPLES_NXLINES_LINECOLOR=0xffe0
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CONFIG_EXAMPLES_NXLINES_BORDERWIDTH=4
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CONFIG_EXAMPLES_NXLINES_BORDERCOLOR=0xffe0
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CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR=0xf7bb
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CONFIG_EXAMPLES_NXLINES_BPP=16
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2014-03-21 17:45:12 +01:00
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STATUS:
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2014-05-14 23:31:38 +02:00
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2014-30-24: DMA is not currently functional and without DMA, there
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2014-03-25 21:34:07 +01:00
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may not be reliable data transfers at high speeds due
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to data overrun problems. The current HSMCI driver
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supports DMA via the DMAC. However, the data sheet
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only discusses PDC-based HSMCI DMA (although there is
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2014-03-26 18:38:47 +01:00
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a DMA channel interface definition for HSMCI). So
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this is effort is dead-in-the-water for now.
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2014-05-15 19:41:58 +02:00
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2014-05-15: The HSCMCI driver has been recently updated to support
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PCD DMA. That modified driver, however, has not yet
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been tested with the SAM4E-EK
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2014-05-14 23:31:38 +02:00
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2014-05-14: The touchscreen interface was successfully verified.
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2014-05-15 19:41:58 +02:00
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2014-08-20 19:45:01 +02:00
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2014-08-20: The LCD interface is fully implemented and data appears
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to be transferred okay. However, there are errors in
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geometry that leave the LCD unusable still.
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2014-05-14 23:31:38 +02:00
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The LCD backlight appears to be functional.
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2014-03-22 16:27:43 +01:00
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usbnsh:
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This is another NSH example. If differs from the 'nsh' configuration
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in that this configurations uses a USB serial device for console I/O.
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2014-03-23 00:30:17 +01:00
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STATUS:
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2014-03-23 22:48:10 +01:00
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2014-3-23: This configuration appears to be fully functional.
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2014-03-27 00:07:08 +01:00
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2014-03-22 16:27:43 +01:00
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NOTES:
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1. See the NOTES in the description of the nsh configuration. Those
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2014-03-23 17:12:57 +01:00
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notes all apply here as well. Some additional notes unique to
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the USB console version follow:
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2014-03-22 16:27:43 +01:00
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2. The configuration differences between this configuration and the
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nsh configuration is:
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a. USB device support is enabled as described in the paragraph
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entitled "USB Full-Speed Device",
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b. The CDC/ACM serial class is enabled as described in the paragraph
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2014-03-26 18:38:47 +01:00
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"CDC/ACM Serial Device Class".
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2014-03-22 16:27:43 +01:00
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c. The serial console is disabled:
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RTOS Features:
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CONFIG_DEV_CONSOLE=n : No console at boot time
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Driver Support -> USB Device Driver Support
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CONFIG_UART0_SERIAL_CONSOLE=n : UART0 is not the console
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CONFIG_NO_SERIAL_CONSOLE=y : There is no serial console
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Driver Support -> USB Device Driver Support
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CONFIG_CDCACM_CONSOLE=y : USB CDC/ACM console
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d. Support for debug output on UART0 is provided as described in the
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next note.
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2014-03-26 18:38:47 +01:00
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3. If you send large amounts of data to the target, you may see data
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2014-03-26 21:03:33 +01:00
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loss due to RX overrun errors. See the NOTES in the section entitled
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"CDC/ACM Serial Device Class" for an explanation and some possible
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work-arounds.
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2014-03-26 18:38:47 +01:00
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2014-03-22 16:27:43 +01:00
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3. This configuration does have UART0 output enabled and set up as
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the system logging device:
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File Systems -> Advanced SYSLOG Features
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CONFIG_SYSLOG_CHAR=y : Use a character device for system logging
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CONFIG_SYSLOG_DEVPATH="/dev/ttyS0" : UART0 will be /dev/ttyS0
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2020-02-23 09:50:23 +01:00
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However, there is nothing to generate SYSLOG output in the default
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2014-03-22 16:27:43 +01:00
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configuration so nothing should appear on UART0 unless you enable
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some debug output or enable the USB monitor.
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NOTE: Using the SYSLOG to get debug output has limitations. Among
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those are that you cannot get debug output from interrupt handlers.
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So, in particularly, debug output is not a useful way to debug the
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USB device controller driver. Instead, use the USB monitor with
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USB debug off and USB trace on (see below).
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4. Enabling USB monitor SYSLOG output. See the paragraph entitle
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2014-03-23 22:48:10 +01:00
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"Debugging USB Device" for a summary of the configuration settings
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2014-03-22 16:27:43 +01:00
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needed to enable the USB monitor and get USB debug data out UART0.
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5. By default, this configuration uses the CDC/ACM serial device to
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provide the USB console. This works out-of-the-box for Linux.
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Windows, on the other hand, will require a CDC/ACM device driver
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2018-04-04 17:32:39 +02:00
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(.inf file).
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2014-03-22 16:27:43 +01:00
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5. Using the Prolifics PL2303 Emulation
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You could also use the non-standard PL2303 serial device instead of
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the standard CDC/ACM serial device by changing:
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CONFIG_CDCACM=n : Disable the CDC/ACM serial device class
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CONFIG_CDCACM_CONSOLE=n : The CDC/ACM serial device is NOT the console
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CONFIG_PL2303=y : The Prolifics PL2303 emulation is enabled
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CONFIG_PL2303_CONSOLE=y : The PL2303 serial device is the console
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2014-08-20 22:15:34 +02:00
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nxwm:
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This is a special configuration setup for the NxWM window manager
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UnitTest. It integrates support for both the SAM4E-EK ILI9341 LCDC and
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the SAM4E-EK ADS7843E touchscreen controller and provides a more
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advanced graphics demo. It provides an interactive windowing experience.
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The NxWM window manager is a tiny window manager tailored for use
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with smaller LCDs. It supports a task, a start window, and
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multiple application windows with toolbars. However, to make the best
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use of the visible LCD space, only one application window is visible at
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at time.
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The NxWM window manager can be found here:
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2018-09-16 17:39:20 +02:00
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apps/graphics/NxWidgets/nxwm
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2014-08-20 22:15:34 +02:00
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The NxWM unit test can be found at:
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2018-09-16 17:39:20 +02:00
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apps/graphics/NxWidgets/UnitTests/nxwm
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2014-08-21 16:36:16 +02:00
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2014-10-11 21:03:07 +02:00
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STATUS:
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2014-08-20. I have seen the demo work well but it is not thoroughly
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exercised. I suspect some touchscreen issues.
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2014-10-11. Today's build crashes in nxwm_main on startup.
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