702 lines
28 KiB
Plaintext
702 lines
28 KiB
Plaintext
README
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======
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This README discusses issues unique to NuttX configurations for the
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HY-MiniSTM32V development board.
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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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- NuttX OABI "buildroot" Toolchain
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- NXFLAT Toolchain
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- ST Bootloader
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- LEDs
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- RTC
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- HY-Mini specific Configuration Options
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- Configurations
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Development Environment
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=======================
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Either Linux or Cygwin on Windows can be used for the development environment.
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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. Testing was performed using the Cygwin
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environment because the Raisonance R-Link emulatator and some RIDE7 development tools
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were used and those tools works only under Windows.
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GNU Toolchain Options
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=====================
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The NuttX make system has been modified to support the following different
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toolchain options.
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1. The CodeSourcery GNU toolchain,
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2. The devkitARM GNU toolchain,
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3. Raisonance GNU toolchain, or
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4. The NuttX buildroot Toolchain (see below).
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All testing has been conducted using the NuttX buildroot toolchain. However,
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the make system is setup to default to use the devkitARM toolchain. To use
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the CodeSourcery, devkitARM or Raisonance GNU toolchain, you simply need to
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add one of the following configuration options to your .config (or defconfig)
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file:
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CONFIG_STM32_CODESOURCERYW=y : CodeSourcery under Windows
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CONFIG_STM32_CODESOURCERYL=y : CodeSourcery under Linux
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CONFIG_STM32_DEVKITARM=y : devkitARM under Windows
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CONFIG_STM32_RAISONANCE=y : Raisonance RIDE7 under Windows
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CONFIG_STM32_BUILDROOT=y : NuttX buildroot under Linux or Cygwin (default)
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If you are not using CONFIG_STM32_BUILDROOT, then you may also have to modify
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the PATH in the setenv.h file if your make cannot find the tools.
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NOTE: the CodeSourcery (for Windows), devkitARM, and Raisonance toolchains are
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Windows native toolchains. The CodeSourcey (for Linux) and NuttX buildroot
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toolchains are Cygwin and/or Linux native toolchains. There are several limitations
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to using a Windows based toolchain in a 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' utility
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but you might easily find some new path problems. If so, check out 'cygpath -w'
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2. Windows toolchains cannot follow Cygwin symbolic links. Many symbolic links
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are used in Nuttx (e.g., include/arch). The make system works around these
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problems for the Windows tools by copying directories instead of linking them.
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But this can also cause some confusion for you: For example, you may edit
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a file in a "linked" directory and find that your changes had no effect.
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That is because you are building the copy of the file in the "fake" symbolic
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directory. If you use a Windows toolchain, you should get in the habit of
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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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3. Dependencies are not made when using Windows versions of the GCC. This is
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because the dependencies are generated using Windows pathes which do not
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work with the Cygwin make.
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MKDEP = $(TOPDIR)/tools/mknulldeps.sh
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NOTE 1: The CodeSourcery toolchain (2009q1) does not work with default optimization
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level of -Os (See Make.defs). It will work with -O0, -O1, or -O2, but not with
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-Os.
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NOTE 2: The devkitARM toolchain includes a version of MSYS make. Make sure that
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the paths to Cygwin's /bin and /usr/bin directories appear BEFORE the devkitARM
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path or will get the wrong version of make.
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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 (There is a simple RIDE project
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in the RIDE subdirectory).
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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/stm32,
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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/stm32/stm32_vectors.S. With RIDE, I have 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 RIDE.
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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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SourceForge download site (https://sourceforge.net/projects/nuttx/files/buildroot/).
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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 hymini-stm32v/<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-eabi-defconfig-4.6.3 .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 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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NOTE: Unfortunately, the 4.6.3 EABI toolchain is not compatible with the
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the NXFLAT tools. See the top-level TODO file (under "Binary loaders") for
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more information about this problem. If you plan to use NXFLAT, please do not
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use the GCC 4.6.3 EABI toochain; instead use the GCC 4.3.3 OABI toolchain.
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See instructions below.
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NuttX OABI "buildroot" Toolchain
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================================
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The older, OABI buildroot toolchain is also available. To use the OABI
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toolchain:
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1. When building the buildroot toolchain, either (1) modify the cortexm3-eabi-defconfig-4.6.3
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configuration to use EABI (using 'make menuconfig'), or (2) use an exising OABI
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configuration such as cortexm3-defconfig-4.3.3
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2. Modify the Make.defs file to use the OABI conventions:
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+CROSSDEV = arm-nuttx-elf-
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+ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
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+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-gotoff.ld -no-check-sections
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-CROSSDEV = arm-nuttx-eabi-
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-ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
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-NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
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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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be downloaded from the NuttX SourceForge download site
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(https://sourceforge.net/projects/nuttx/files/).
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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 hymini-stm32v/<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 builtNXFLAT binaries.
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ST Bootloader
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=============
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A bootloader code is available in an internal boot ROM memory (called
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'system memory' in STM documentation) in all STM32 MCUs. For the F103xx
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this bootloader can be used to upload & flash a firmware image through
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the USART1.
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Notes:
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- The bootloader is activated by the BOOT0 / BOOT1 pins after a MCU reset.
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See STM application note 2606 for more details.
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- On the hymini-stm32 board the USART1 is connected to a PL2303
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USB<->serial converter.
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To enter bootloader mode in the hymini-stm32 board:
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- Press the 'boot0' button (located next to 'reset' button)
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- While boot0 button is pressed, reset the board through the reset button.
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- Once you pressed / released the 'reset' button, the MCU has (re)started
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in bootloader mode (and you can then release the boot0 button).
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A flash utility must be used on your development workstation to upload / flash
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a firmware image. (The 'stm32flash' open source tool, available at
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http://stm32flash.googlecode.com/ has been used sucessfully).
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LEDs
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====
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The HY-MiniSTM32 board provides only two controlable LEDs labeled LED1 and LED2.
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Usage of these LEDs is defined in include/board.h and src/up_leds.c.
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They are encoded as follows:
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SYMBOL Meaning LED1* LED2
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------------------- ----------------------- ------- -------
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LED_STARTED NuttX has been started OFF OFF
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LED_HEAPALLOCATE Heap has been allocated ON OFF
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LED_IRQSENABLED Interrupts enabled OFF ON
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LED_STACKCREATED Idle stack created ON OFF
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LED_INIRQ In an interrupt** OFF N/C
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LED_SIGNAL In a signal handler*** N/C ON
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LED_ASSERTION An assertion failed ON ON
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LED_PANIC The system has crashed BLINK BLINK
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LED_IDLE STM32 is is sleep mode (Optional, not used)
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* If Nuttx starts correctly, normal state is to have LED1 on and LED2 off.
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** LED1 is turned off during interrrupt.
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*** LED2 is turned on during signal handler.
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RTC
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===
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The STM32 RTC may configured using the following settings.
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CONFIG_RTC - Enables general support for a hardware RTC. Specific
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architectures may require other specific settings.
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CONFIG_RTC_HIRES - The typical RTC keeps time to resolution of 1
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second, usually supporting a 32-bit time_t value. In this case,
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the RTC is used to "seed" the normal NuttX timer and the
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NuttX timer provides for higher resoution time. If CONFIG_RTC_HIRES
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is enabled in the NuttX configuration, then the RTC provides higher
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resolution time and completely replaces the system timer for purpose of
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date and time.
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CONFIG_RTC_FREQUENCY - If CONFIG_RTC_HIRES is defined, then the
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frequency of the high resolution RTC must be provided. If CONFIG_RTC_HIRES
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is not defined, CONFIG_RTC_FREQUENCY is assumed to be one.
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CONFIG_RTC_ALARM - Enable if the RTC hardware supports setting of an alarm.
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A callback function will be executed when the alarm goes off
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In hi-res mode, the STM32 RTC operates only at 16384Hz. Overflow interrupts
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are handled when the 32-bit RTC counter overflows every 3 days and 43 minutes.
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A BKP register is incremented on each overflow interrupt creating, effectively,
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a 48-bit RTC counter.
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In the lo-res mode, the RTC operates at 1Hz. Overflow interrupts are not handled
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(because the next overflow is not expected until the year 2106.
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WARNING: Overflow interrupts are lost whenever the STM32 is powered down. The
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overflow interrupt may be lost even if the STM32 is powered down only momentarily.
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Therefore hi-res solution is only useful in systems where the power is always on.
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HY-Mini specific Configuration Options
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============================================
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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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CONFIG_ARCH_CORTEXM3=y
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CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
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CONFIG_ARCH_CHIP=stm32
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CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
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chip:
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CONFIG_ARCH_CHIP_STM32F103VCT6
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CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG - Enables special STM32 clock
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configuration features.
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CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG=n
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CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
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hence, the board that supports the particular chip or SoC.
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CONFIG_ARCH_BOARD=hymini-stm32v (for the HY-Mini development board)
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CONFIG_ARCH_BOARD_name - For use in C code
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CONFIG_ARCH_BOARD_HYMINI_STM32V=y
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CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
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of delay loops
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CONFIG_ENDIAN_BIG - define if big endian (default is little
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endian)
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CONFIG_DRAM_SIZE - Describes the installed DRAM (SRAM in this case):
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CONFIG_DRAM_SIZE=0x0000C000 (48Kb)
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CONFIG_DRAM_START - The start address of installed DRAM
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CONFIG_DRAM_START=0x20000000
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CONFIG_ARCH_IRQPRIO - The STM32F103V supports interrupt prioritization
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CONFIG_ARCH_IRQPRIO=y
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CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that
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have LEDs
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CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
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stack. If defined, this symbol is the size of the interrupt
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stack in bytes. If not defined, the user task stacks will be
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used during interrupt handling.
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CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
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CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to board architecture.
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CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
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cause a 100 second delay during boot-up. This 100 second delay
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serves no purpose other than it allows you to calibratre
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CONFIG_ARCH_LOOPSPERMSEC. You simply use a stop watch to measure
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the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
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the delay actually is 100 seconds.
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Individual subsystems can be enabled:
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AHB
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---
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CONFIG_STM32_DMA1
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CONFIG_STM32_DMA2
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CONFIG_STM32_CRC
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CONFIG_STM32_FSMC
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CONFIG_STM32_SDIO
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APB1
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----
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CONFIG_STM32_TIM2
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CONFIG_STM32_TIM3 (required for PWM control of LCD backlight)
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CONFIG_STM32_TIM4
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CONFIG_STM32_TIM5
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CONFIG_STM32_TIM6
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CONFIG_STM32_TIM7
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CONFIG_STM32_IWDG
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CONFIG_STM32_WWDG
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CONFIG_STM32_IWDG
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CONFIG_STM32_SPI2
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CONFIG_STM32_SPI4
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CONFIG_STM32_USART2
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CONFIG_STM32_USART3
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CONFIG_STM32_UART4
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CONFIG_STM32_UART5
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CONFIG_STM32_I2C1
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CONFIG_STM32_I2C2
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CONFIG_STM32_USB
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CONFIG_STM32_CAN1
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CONFIG_STM32_BKP
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CONFIG_STM32_PWR
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CONFIG_STM32_DAC
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CONFIG_STM32_USB
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APB2
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----
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CONFIG_STM32_ADC1
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CONFIG_STM32_ADC2
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CONFIG_STM32_TIM1
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CONFIG_STM32_SPI1
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CONFIG_STM32_TIM8
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CONFIG_STM32_USART1
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CONFIG_STM32_ADC3
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Timer and I2C devices may need to the following to force power to be applied
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unconditionally at power up. (Otherwise, the device is powered when it is
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initialized).
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CONFIG_STM32_FORCEPOWER
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The Timer3 alternate mapping is required for PWM control of LCD backlight
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CONFIG_STM32_TIM3_PARTIAL_REMAP=y
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Timer devices may be used for different purposes. One special purpose is
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to generate modulated outputs for such things as motor control. If CONFIG_STM32_TIMn
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is defined (as above) then the following may also be defined to indicate that
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the timer is intended to be used for pulsed output modulation, ADC conversion,
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or DAC conversion. Note that ADC/DAC require two definition: Not only do you have
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to assign the timer (n) for used by the ADC or DAC, but then you also have to
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configure which ADC or DAC (m) it is assigned to.
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CONFIG_STM32_TIMn_PWM Reserve timer n for use by PWM, n=1,..,8
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CONFIG_STM32_TIMn_ADC Reserve timer n for use by ADC, n=1,..,8
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CONFIG_STM32_TIMn_ADCm Reserve timer n to trigger ADCm, n=1,..,8, m=1,..,3
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CONFIG_STM32_TIMn_DAC Reserve timer n for use by DAC, n=1,..,8
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CONFIG_STM32_TIMn_DACm Reserve timer n to trigger DACm, n=1,..,8, m=1,..,2
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Others alternate pin mappings available:
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CONFIG_STM32_TIM1_FULL_REMAP
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CONFIG_STM32_TIM1_PARTIAL_REMAP
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CONFIG_STM32_TIM2_FULL_REMAP
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CONFIG_STM32_TIM2_PARTIAL_REMAP_1
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CONFIG_STM32_TIM2_PARTIAL_REMAP_2
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CONFIG_STM32_TIM3_FULL_REMAP
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CONFIG_STM32_TIM3_PARTIAL_REMAP
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CONFIG_STM32_TIM4_REMAP
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CONFIG_STM32_USART1_REMAP
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CONFIG_STM32_USART2_REMAP
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CONFIG_STM32_USART3_FULL_REMAP
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CONFIG_STM32_USART3_PARTIAL_REMAP
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CONFIG_STM32_SPI1_REMAP
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CONFIG_STM32_SPI3_REMAP
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CONFIG_STM32_I2C1_REMAP
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CONFIG_STM32_CAN1_REMAP1
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CONFIG_STM32_CAN1_REMAP2
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CONFIG_STM32_CAN2_REMAP
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STM32F103V specific device driver settings
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CONFIG_U[S]ARTn_SERIAL_CONSOLE - selects the USARTn (n=1,2,3) or UART
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m (m=4,5) for the console and ttys0 (default is the USART1).
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Note: USART1 is connected to a PL2303 serial to USB converter.
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So USART1 is available through USB port labeled CN3 on the board.
|
|
|
|
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
|
|
|
|
CONFIG_STM32_SPI_INTERRUPTS - Select to enable interrupt driven SPI
|
|
support. Non-interrupt-driven, poll-waiting is recommended if the
|
|
interrupt rate would be to high in the interrupt driven case.
|
|
CONFIG_STM32_SPI_DMA - Use DMA to improve SPI transfer performance.
|
|
Cannot be used with CONFIG_STM32_SPI_INTERRUPT.
|
|
|
|
CONFIG_SDIO_DMA - Support DMA data transfers. Requires CONFIG_STM32_SDIO
|
|
and CONFIG_STM32_DMA2.
|
|
CONFIG_SDIO_PRI - Select SDIO interrupt prority. Default: 128
|
|
CONFIG_SDIO_DMAPRIO - Select SDIO DMA interrupt priority.
|
|
Default: Medium
|
|
CONFIG_SDIO_WIDTH_D1_ONLY - Select 1-bit transfer mode. Default:
|
|
4-bit transfer mode.
|
|
CONFIG_MMCSD_HAVECARDDETECT - Select if SDIO driver card detection
|
|
is 100% accurate (it is on the HY-MiniSTM32V)
|
|
|
|
HY-MiniSTM32V CAN Configuration
|
|
|
|
CONFIG_CAN - Enables CAN support (one or both of CONFIG_STM32_CAN1 or
|
|
CONFIG_STM32_CAN2 must also be defined)
|
|
CONFIG_CAN_EXTID - Enables support for the 29-bit extended ID. Default
|
|
Standard 11-bit IDs.
|
|
CONFIG_CAN_FIFOSIZE - The size of the circular buffer of CAN messages.
|
|
Default: 8
|
|
CONFIG_CAN_NPENDINGRTR - The size of the list of pending RTR requests.
|
|
Default: 4
|
|
CONFIG_CAN_LOOPBACK - A CAN driver may or may not support a loopback
|
|
mode for testing. The STM32 CAN driver does support loopback mode.
|
|
CONFIG_CAN1_BAUD - CAN1 BAUD rate. Required if CONFIG_STM32_CAN1 is defined.
|
|
CONFIG_CAN2_BAUD - CAN1 BAUD rate. Required if CONFIG_STM32_CAN2 is defined.
|
|
CONFIG_CAN_TSEG1 - The number of CAN time quanta in segment 1. Default: 6
|
|
CONFIG_CAN_TSEG2 - the number of CAN time quanta in segment 2. Default: 7
|
|
CONFIG_CAN_REGDEBUG - If CONFIG_DEBUG is set, this will generate an
|
|
dump of all CAN registers.
|
|
|
|
HY-MiniSTM32V LCD Hardware Configuration. The HY-Mini board may be delivered with
|
|
either an SSD1289 or an R61505U LCD controller.
|
|
|
|
CONFIG_LCD_R61505U - Selects the R61505U LCD controller.
|
|
CONFIG_LCD_SSD1289 - Selects the SSD1289 LCD controller.
|
|
|
|
The following options apply for either LCD controller:
|
|
|
|
CONFIG_NX_LCDDRIVER - To be defined to include LCD driver
|
|
CONFIG_LCD_LANDSCAPE - Define for 320x240 display "landscape"
|
|
support. In this orientation, the HY-MiniSTM32V's
|
|
LCD used connector is at the right of the display.
|
|
Default is this 320x240 "landscape" orientation
|
|
CONFIG_LCD_PORTRAIT - Define for 240x320 display "portrait"
|
|
orientation support. In this orientation, the HY-MiniSTM32V's
|
|
LCD used connector is at the bottom of the display. Default is
|
|
320x240 "landscape" orientation.
|
|
CONFIG_LCD_RPORTRAIT - Define for 240x320 display "reverse
|
|
portrait" orientation support. In this orientation, the
|
|
HY-MiniSTM32V's LCD used connector is at the top of the display.
|
|
Default is 320x240 "landscape" orientation.
|
|
CONFIG_LCD_BACKLIGHT - Define to support an adjustable backlight
|
|
using timer 3. The granularity of the settings is determined
|
|
by CONFIG_LCD_MAXPOWER. Requires CONFIG_STM32_TIM3.
|
|
|
|
Configurations
|
|
==============
|
|
|
|
NOTES:
|
|
|
|
- All configurations described below are using the mconf-based
|
|
configuration tool. To change their configuration using that tool, you
|
|
should:
|
|
|
|
a. Build and install the kconfig-mconf tool. See nuttx/README.txt
|
|
and misc/tools/
|
|
|
|
b. Execute 'make menuconfig' in nuttx/ in order to start the
|
|
reconfiguration process.
|
|
|
|
- All configurations use a generic GNU EABI toolchain for Linux by
|
|
default.
|
|
|
|
- They are all configured to generate a binary image that can be flashed
|
|
through the STM32 internal bootloader.
|
|
|
|
Each HY-MiniSTM32V configuration is maintained in a sub-directory and
|
|
can be selected as follow:
|
|
|
|
cd tools
|
|
./configure.sh hymini-stm32v/<subdir>
|
|
cd -
|
|
. ./setenv.sh
|
|
|
|
Where <subdir> is one of the following:
|
|
|
|
buttons:
|
|
--------
|
|
|
|
Uses apps/examples/buttons to exercise HY-MiniSTM32V buttons and
|
|
button interrupts.
|
|
|
|
CONFIG_ARMV7M_TOOLCHAIN_GNU_EABIL=y : Generic GNU EABI toolchain
|
|
|
|
nsh and nsh2:
|
|
------------
|
|
Configure the NuttShell (nsh) located at examples/nsh.
|
|
|
|
Differences between the two NSH configurations:
|
|
|
|
=========== ======================= ================================
|
|
nsh nsh2
|
|
=========== ======================= ================================
|
|
Serial Debug output: USART1 Debug output: USART1
|
|
Console: NSH output: USART1 NSH output: USART1 (2)
|
|
----------- ----------------------- --------------------------------
|
|
microSD Yes (5) Yes (5)
|
|
Support
|
|
----------- ----------------------- --------------------------------
|
|
FAT FS CONFIG_FAT_LCNAME=y CONFIG_FAT_LCNAME=y
|
|
Config CONFIG_FAT_LFN=n CONFIG_FAT_LFN=y (3)
|
|
----------- ----------------------- --------------------------------
|
|
LCD Driver No Yes
|
|
Support
|
|
----------- ----------------------- --------------------------------
|
|
RTC Support No Yes
|
|
----------- ----------------------- --------------------------------
|
|
Support for No Yes
|
|
Built-in
|
|
Apps
|
|
----------- ----------------------- --------------------------------
|
|
Built-in None apps/examples/nx
|
|
Apps apps/examples/nxhello
|
|
apps/examples/usbstorage (4)
|
|
apps/examples/buttons
|
|
apps/examples/nximage
|
|
=========== ======================= ================================
|
|
|
|
(1) You will probably need to modify nsh/setenv.sh or nsh2/setenv.sh
|
|
to set up the correct PATH variable for whichever toolchain you
|
|
may use.
|
|
(2) When any other device other than /dev/console is used for a user
|
|
interface, (1) linefeeds (\n) will not be expanded to carriage return
|
|
/ linefeeds \r\n). You will need to configure your terminal program
|
|
to account for this. And (2) input is not automatically echoed so
|
|
you will have to turn local echo on.
|
|
(3) Microsoft holds several patents related to the design of
|
|
long file names in the FAT file system. Please refer to the
|
|
details in the top-level COPYING file. Please do not use FAT
|
|
long file name unless you are familiar with these patent issues.
|
|
(4) When built as an NSH add-on command (CONFIG_NSH_BUILTIN_APPS=y),
|
|
Caution should be used to assure that the SD drive is not in use when
|
|
the USB storage device is configured. Specifically, the SD driver
|
|
should be unmounted like:
|
|
|
|
nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard # Card is mounted in NSH
|
|
...
|
|
nsh> umount /mnd/sdcard # Unmount before connecting USB!!!
|
|
nsh> msconn # Connect the USB storage device
|
|
...
|
|
nsh> msdis # Disconnect USB storate device
|
|
nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard # Restore the mount
|
|
|
|
Failure to do this could result in corruption of the SD card format.
|
|
(5) Option CONFIG_NSH_ARCHINIT must be enabled in order to call the SDIO slot
|
|
initialization code.
|
|
|
|
ostest:
|
|
------
|
|
This configuration directory, performs a simple OS test using
|
|
apps/examples/ostest.
|
|
|
|
usbnsh:
|
|
-------
|
|
|
|
This is another NSH example. If differs from other 'nsh' configurations
|
|
in that this configurations uses a USB serial device for console I/O.
|
|
|
|
NOTES:
|
|
|
|
1. This configuration does have UART2 output enabled and set up as
|
|
the system logging device:
|
|
|
|
CONFIG_SYSLOG=y : Enable output to syslog, not console
|
|
CONFIG_SYSLOG_CHAR=y : Use a character device for system logging
|
|
CONFIG_SYSLOG_DEVPATH="/dev/ttyS0" : UART2 will be /dev/ttyS0
|
|
|
|
However, there is nothing to generate SYLOG output in the default
|
|
configuration so nothing should appear on UART2 unless you enable
|
|
some debug output or enable the USB monitor.
|
|
|
|
2. Enabling USB monitor SYSLOG output. If tracing is enabled, the USB
|
|
device will save encoded trace output in in-memory buffer; if the
|
|
USB monitor is enabled, that trace buffer will be periodically
|
|
emptied and dumped to the system loggin device (UART2 in this
|
|
configuraion):
|
|
|
|
CONFIG_USBDEV_TRACE=y : Enable USB trace feature
|
|
CONFIG_USBDEV_TRACE_NRECORDS=128 : Buffer 128 records in memory
|
|
CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH
|
|
CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor
|
|
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=2 : Dump trace data every 2 seconds
|
|
|
|
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
|
|
|
|
|
|
Using the Prolifics PL2303 Emulation
|
|
------------------------------------
|
|
You could also use the non-standard PL2303 serial device instead of
|
|
the standard CDC/ACM serial device by changing:
|
|
|
|
CONFIG_CDCACM=y : Disable the CDC/ACM serial device class
|
|
CONFIG_CDCACM_CONSOLE=y : The CDC/ACM serial device is NOT the console
|
|
CONFIG_PL2303=y : The Prolifics PL2303 emulation is enabled
|
|
CONFIG_PL2303_CONSOLE=y : The PL2303 serial device is the console
|