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circuitpython/stmhal
Dan Halbert ef61b5ecb5 Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
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boards all: Make static dicts use mp_rom_map_elem_t type and MP_ROM_xxx macros. 5 years ago
cmsis stmhal/cmsis: Add CMSIS file stm32f769xx.h, V1.1.2. 6 years ago
hal all: Use the name MicroPython consistently in comments 5 years ago
modules stmhal/modules: Provide sym-link to onewire.py driver. 6 years ago
usbdev all: Use the name MicroPython consistently in comments 5 years ago
usbhost Initial checkin with STM HAL 9 years ago
.gitignore stmhal: Add support for Espruino Pico board. 8 years ago
Makefile Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
README.md stmhal/README: Add paragraph about building mpy-cross. 6 years ago
accel.c all: Use the name MicroPython consistently in comments 5 years ago
accel.h all: Use the name MicroPython consistently in comments 5 years ago
adc.c all: Use the name MicroPython consistently in comments 5 years ago
adc.h all: Use the name MicroPython consistently in comments 5 years ago
autoflash Add device ID to autoflash script. 9 years ago
bufhelper.c all: Use the name MicroPython consistently in comments 5 years ago
bufhelper.h all: Use the name MicroPython consistently in comments 5 years ago
can.c Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
can.h all: Use the name MicroPython consistently in comments 5 years ago
dac.c all: Raise exceptions via mp_raise_XXX 5 years ago
dac.h all: Use the name MicroPython consistently in comments 5 years ago
dma.c all: Use the name MicroPython consistently in comments 5 years ago
dma.h all: Use the name MicroPython consistently in comments 5 years ago
extint.c all: Use the name MicroPython consistently in comments 5 years ago
extint.h all: Use the name MicroPython consistently in comments 5 years ago
fatfs_port.c stmhal: Convert to use VFS sub-system and new ooFatFs component. 6 years ago
flash.c all: Use the name MicroPython consistently in comments 5 years ago
flash.h all: Use the name MicroPython consistently in comments 5 years ago
font_petme128_8x8.h all: Use the name MicroPython consistently in comments 5 years ago
gccollect.c all: Use the name MicroPython consistently in comments 5 years ago
gccollect.h all: Use the name MicroPython consistently in comments 5 years ago
gchelper.s REPl working on UART6 with STMHAL 9 years ago
help.c all: Use the name MicroPython consistently in comments 5 years ago
i2c.c all: Raise exceptions via mp_raise_XXX 5 years ago
i2c.h all: Use the name MicroPython consistently in comments 5 years ago
irq.c all: Use the name MicroPython consistently in comments 5 years ago
irq.h all: Use the name MicroPython consistently in comments 5 years ago
lcd.c all: Use the name MicroPython consistently in comments 5 years ago
lcd.h all: Use the name MicroPython consistently in comments 5 years ago
led.c all: Use the name MicroPython consistently in comments 5 years ago
led.h all: Use the name MicroPython consistently in comments 5 years ago
machine_i2c.c stmhal: Make error messages more consistent across peripherals. 6 years ago
main.c all: Use the name MicroPython consistently in comments 5 years ago
make-stmconst.py all: Make static dicts use mp_rom_map_elem_t type and MP_ROM_xxx macros. 5 years ago
modmachine.c all: Raise exceptions via mp_raise_XXX 5 years ago
modmachine.h all: Unify header guard usage. 5 years ago
modnetwork.c all: Use the name MicroPython consistently in comments 5 years ago
modnetwork.h all: Use the name MicroPython consistently in comments 5 years ago
modnwcc3k.c Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
modnwwiznet5k.c all: Use the name MicroPython consistently in comments 5 years ago
modpyb.c all: Use the name MicroPython consistently in comments 5 years ago
modstm.c all: Use the name MicroPython consistently in comments 5 years ago
moduos.c all: Raise exceptions via mp_raise_XXX 5 years ago
modusocket.c all: Use the name MicroPython consistently in comments 5 years ago
modutime.c all: Use the name MicroPython consistently in comments 5 years ago
mpconfigport.h all: Make static dicts use mp_rom_map_elem_t type and MP_ROM_xxx macros. 5 years ago
mpconfigport.mk stmhal: Initial implementation of cc3k module and driver. 8 years ago
mphalport.c stmhal/mphalport: Get ticks_cpu() working on F7 MCUs. 6 years ago
mphalport.h stmhal: Add "quiet timing" enter/exit functions. 6 years ago
mpthreadport.c stmhal: Implement a proper thread scheduler. 6 years ago
mpthreadport.h all: Unify header guard usage. 5 years ago
pendsv.c all: Use the name MicroPython consistently in comments 5 years ago
pendsv.h all: Use the name MicroPython consistently in comments 5 years ago
pin.c all: Raise exceptions via mp_raise_XXX 5 years ago
pin.h all: Use the name MicroPython consistently in comments 5 years ago
pin_defs_stmhal.c all: Add py/mphal.h and use it in all ports. 7 years ago
pin_defs_stmhal.h all: Use the name MicroPython consistently in comments 5 years ago
pin_named_pins.c all: Use the name MicroPython consistently in comments 5 years ago
portmodules.h all: Use the name MicroPython consistently in comments 5 years ago
pybcdc.inf_template Rename "Micro Python" to "MicroPython" in REPL, help, readme's and misc. 7 years ago
pybthread.c stmhal/pybthread: Allow interrupts to work during lock/unlock of mutex. 6 years ago
pybthread.h all: Unify header guard usage. 5 years ago
qstrdefsport.h all: Use the name MicroPython consistently in comments 5 years ago
rng.c all: Use the name MicroPython consistently in comments 5 years ago
rng.h all: Use the name MicroPython consistently in comments 5 years ago
rtc.c all: Raise exceptions via mp_raise_XXX 5 years ago
rtc.h all: Use the name MicroPython consistently in comments 5 years ago
sdcard.c all: Use the name MicroPython consistently in comments 5 years ago
sdcard.h all: Use the name MicroPython consistently in comments 5 years ago
servo.c all: Use the name MicroPython consistently in comments 5 years ago
servo.h all: Use the name MicroPython consistently in comments 5 years ago
spi.c all: Raise exceptions via mp_raise_XXX 5 years ago
spi.h all: Use the name MicroPython consistently in comments 5 years ago
startup_stm32.S stmhal/sdcard: Add support for SDMMC2 on F7 MCUs. 6 years ago
stm32_it.c all: Use the name MicroPython consistently in comments 5 years ago
stm32_it.h all: Use the name MicroPython consistently in comments 5 years ago
storage.c all: Use the name MicroPython consistently in comments 5 years ago
storage.h all: Use the name MicroPython consistently in comments 5 years ago
system_stm32.c all: Use the name MicroPython consistently in comments 5 years ago
systick.c all: Use the name MicroPython consistently in comments 5 years ago
systick.h all: Use the name MicroPython consistently in comments 5 years ago
timer.c all: Raise exceptions via mp_raise_XXX 5 years ago
timer.h all: Use the name MicroPython consistently in comments 5 years ago
uart.c Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
uart.h all: Use the name MicroPython consistently in comments 5 years ago
usb.c Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
usb.h all: Use the name MicroPython consistently in comments 5 years ago
usbd_cdc_interface.c stmhal: Clean up USB CDC/MSC files and remove commented-out code. 5 years ago
usbd_cdc_interface.h all: Use the name MicroPython consistently in comments 5 years ago
usbd_conf.c all: Use the name MicroPython consistently in comments 5 years ago
usbd_conf.h all: Use the name MicroPython consistently in comments 5 years ago
usbd_desc.c all: Use the name MicroPython consistently in comments 5 years ago
usbd_desc.h all: Use the name MicroPython consistently in comments 5 years ago
usbd_hid_interface.c stmhal/usb: Make state for USB device private to top-level USB driver. 6 years ago
usbd_hid_interface.h all: Unify header guard usage. 5 years ago
usbd_msc_storage.c stmhal: Clean up USB CDC/MSC files and remove commented-out code. 5 years ago
usbd_msc_storage.h all: Use the name MicroPython consistently in comments 5 years ago
usrsw.c all: Use the name MicroPython consistently in comments 5 years ago
usrsw.h all: Use the name MicroPython consistently in comments 5 years ago
wdt.c stmhal: Clean up some header includes. 5 years ago
wdt.h all: Unify header guard usage. 5 years ago

README.md

MicroPython port to STM32 MCUs

This directory contains the port of MicroPython to ST's line of STM32Fxxx microcontrollers. It is based on the STM32Cube HAL library and currently supports: STM32F401, STM32F405, STM32F411, STM32F429, STM32F746.

The officially supported boards are the line of pyboards: PYBv1.0 and PYBv1.1 (both with STM32F405), and PYBLITEv1.0 (with STM32F411). See micropython.org/pyboard for further details.

Other boards that are supported include ST Discovery and Nucleo boards. See the boards/ subdirectory, which contains the configuration files used to build each individual board.

Build instructions

Before building the firmware for a given board the MicroPython cross-compiler must be built; it will be used to pre-compile some of the built-in scripts to bytecode. The cross-compiler is built and run on the host machine, using:

$ make -C mpy-cross

This command should be executed from the root directory of this repository. All other commands below should be executed from the stmhal/ directory.

An ARM compiler is required for the build, along with the associated binary utilities. The default compiler is arm-none-eabi-gcc, which is available for Arch Linux via the package arm-none-eabi-gcc, for Ubuntu via instructions here, or see here for the main GCC ARM Embedded page. The compiler can be changed using the CROSS_COMPILE variable when invoking make.

To build for a given board, run:

$ make BOARD=PYBV11

The default board is PYBV10 but any of the names of the subdirectories in the boards/ directory can be passed as the argument to BOARD=. The above command should produce binary images in the build-PYBV11/ subdirectory (or the equivalent directory for the board specified).

You must then get your board/microcontroller into DFU mode. On the pyboard connect the 3V3 pin to the P1/DFU pin with a wire (they are next to each other on the bottom left of the board, second row from the bottom) and then reset (by pressing the RST button) or power on the board. Then flash the firmware using the command:

$ make BOARD=PYBV11 deploy

This will use the included tools/pydfu.py script. You can use instead the dfu-util program (available here) by passing USE_PYDFU=0:

$ make BOARD=PYBV11 USE_PYDFU=0 deploy

If flashing the firmware does not work it may be because you don't have the correct permissions. Try then:

$ sudo make BOARD=PYBV11 deploy

Or using dfu-util directly:

$ sudo dfu-util -a 0 -d 0483:df11 -D build-PYBV11/firmware.dfu

ST Discovery or Nucleo boards have a builtin programmer called ST-LINK. With these boards and using Linux or OS X, you have the option to upload the stmhal firmware using the st-flash utility from the stlink project. To do so, connect the board with a mini USB cable to its ST-LINK USB port and then use the make target deploy-stlink. For example, if you have the STM32F4DISCOVERY board, you can run:

$ make BOARD=STM32F4DISC deploy-stlink

The st-flash program should detect the USB connection to the board automatically. If not, run lsusb to determine its USB bus and device number and set the STLINK_DEVICE environment variable accordingly, using the format <USB_BUS>:<USB_ADDR>. Example:

$ lsusb
[...]
Bus 002 Device 035: ID 0483:3748 STMicroelectronics ST-LINK/V2
$ export STLINK_DEVICE="002:0035"
$ make BOARD=STM32F4DISC deploy-stlink

Flashing the Firmware with OpenOCD

Another option to deploy the firmware on ST Discovery or Nucleo boards with a ST-LINK interface uses OpenOCD. Connect the board with a mini USB cable to its ST-LINK USB port and then use the make target deploy-openocd. For example, if you have the STM32F4DISCOVERY board:

$ make BOARD=STM32F4DISC deploy-openocd

The openocd program, which writes the firmware to the target board's flash, is configured via the file stmhal/boards/openocd_stm32f4.cfg. This configuration should work for all boards based on a STM32F4xx MCU with a ST-LINKv2 interface. You can override the path to this configuration by setting OPENOCD_CONFIG in your Makefile or on the command line.

Accessing the board

Once built and deployed, access the MicroPython REPL (the Python prompt) via USB serial or UART, depending on the board. For the pyboard you can try:

$ picocom /dev/ttyACM0