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circuitpython/stmhal
Krzysztof Blazewicz 6aea34ad89 lib/cmsis: move CMSIS headers to lib/ 6 years ago
..
boards stmhal: Add virtual com port support for STM32L476DISC. 6 years ago
cmsis lib/cmsis: move CMSIS headers to lib/ 6 years ago
hal stmhal: Remove STM32CubeF2 HAL files, they are unused/unsupported. 6 years ago
usbdev stmhal: add option to query for the current usb mode 7 years ago
usbhost Initial checkin with STM HAL 9 years ago
.gitignore stmhal: Add support for Espruino Pico board. 8 years ago
Makefile lib/cmsis: move CMSIS headers to lib/ 6 years ago
README.md stmhal: Add makefile target and configuration to deploy via OpenOCD. 7 years ago
accel.c stmhal/{accel,lcd}: use GPIO_{set,clear}_pin 6 years ago
accel.h Add license header to (almost) all files. 9 years ago
adc.c stmhal: Make ADC channel 16 available on L4 MCUs. 6 years ago
adc.h Add license header to (almost) all files. 9 years ago
autoflash Add device ID to autoflash script. 9 years ago
bufhelper.c py: Remove mp_obj_str_builder and use vstr instead. 8 years ago
bufhelper.h py: Remove mp_obj_str_builder and use vstr instead. 8 years ago
builtin_open.c extmod/vfs_fat_file: Reusable FatFs module, move from stmhal/file. 7 years ago
can.c all: Rename mp_obj_type_t::stream_p to protocol. 7 years ago
can.h stmhal: Remove PYBVxx defines and use config vars for UART/CAN names. 8 years ago
dac.c stmhal/dac: Fix DAC (re-)initialisation by resetting DMA. 6 years ago
dac.h Add license header to (almost) all files. 9 years ago
dma.c stmhal: Correct DMA to allow SD card on L4 MCUs. 7 years ago
dma.h stmhal: Correct DMA to allow SD card on L4 MCUs. 7 years ago
extint.c stmhal/extint: Force 0 to 1 transition on swint(). 6 years ago
extint.h stamhal: Add definitions for MCU_SERIES_F4 and MCU_SERIES_F7 7 years ago
fatfs_port.c extmod/fsusermount: Support mounting of multiple block devices. 7 years ago
flash.c stmhal: L4: Modify flash.c and storage.c to support L4 MCU. 7 years ago
flash.h Add license header to (almost) all files. 9 years ago
font_petme128_8x8.h extmod: Add initial framebuf module. 7 years ago
gccollect.c stmhal: Collect all root pointers together in 1 place. 8 years ago
gccollect.h stmhal: Remove some unnecessary declarations, purely for cleanup. 8 years ago
gchelper.s REPl working on UART6 with STMHAL 9 years ago
help.c cc3200, stmhal, teensy: Use pyhelp_print_obj function. 7 years ago
i2c.c stmhal: L4: Adapt DMA to be able to support STM32L4 MCU series. 7 years ago
i2c.h stmhal/i2c: Expose I2CHandle3 for use by custom C code. 7 years ago
import.c extmod/vfs_fat: Add fat_vfs_import_stat(), reusable import stat routine. 7 years ago
input.c stmhal: Make pybstdio usable by other ports, and use it. 8 years ago
irq.c stmhal: Add pyb.irq_stats() to get statistics about IRQ calls. 7 years ago
irq.h stmhal: Remove obsolete code for special handling of TIM3 irq settings. 6 years ago
lcd.c stmhal/{accel,lcd}: use GPIO_{set,clear}_pin 6 years ago
lcd.h stmhal: Update and improve LCD driver. 9 years ago
led.c stmhal/led: Allow LEDs to be in PWM mode with TIM1 and channels 1-4. 7 years ago
led.h Add license header to (almost) all files. 9 years ago
lexerfatfs.c extmod/vfs_fat: Add lexer, move from stmhal port for reuse. 7 years ago
main.c stmhal: Use attribute to avoid inlining. 6 years ago
make-stmconst.py stmhal: Make stm constants big ints when they don't fit in a small int. 7 years ago
memory.h stmhal: Enable uhashlib module; add heapq, hashlib weak links. 8 years ago
modmachine.c stmhal/modmachine: Fix clearing of reset-cause flags. 6 years ago
modmachine.h stmhal/modmachine: Implement machine.reset_cause() function, and consts. 6 years ago
modnetwork.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
modnetwork.h lib: Move some common mod_network_* functions to lib/netutils. 8 years ago
modnwcc3k.c stmhal: For network drivers, convert to use MP_Exxx errno symbols. 7 years ago
modnwwiznet5k.c stmhal: For network drivers, convert to use MP_Exxx errno symbols. 7 years ago
modpyb.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
modstm.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
moduos.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
moduselect.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
modusocket.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
modutime.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
mpconfigport.h stmhal/spi: Support new machine SPI methods in legacy SPI object. 6 years ago
mpconfigport.mk stmhal: Initial implementation of cc3k module and driver. 8 years ago
mphalport.c stmhal: Convert to use internal errno symbols; enable uerrno module. 7 years ago
mphalport.h extmod/machine_i2c: Redo mp_hal_pin macros to use open_drain and od_low. 7 years ago
pendsv.c stmhal: Add symbolic #defines for interrupt levels in irq.h. 7 years ago
pendsv.h stmhal: Remove some unnecessary declarations, purely for cleanup. 8 years ago
pin.c stmhal: Update pin print to print new constants 6 years ago
pin.h stmhal: Add a function for setting the pin alternate function 7 years ago
pin_defs_stmhal.c all: Add py/mphal.h and use it in all ports. 7 years ago
pin_defs_stmhal.h stmhal: Add STM32F7DISC and associated changes. 7 years ago
pin_named_pins.c all: Add py/mphal.h and use it in all ports. 7 years ago
portmodules.h stmhal: Implement os.dupterm (was pyb.repl_uart). 7 years ago
pybcdc.inf_template Rename "Micro Python" to "MicroPython" in REPL, help, readme's and misc. 7 years ago
pybioctl.h stmhal/moduselect: Expose POLLIN/OUT/ERR/HUP constants. 7 years ago
pybstdio.c all: Rename mp_obj_type_t::stream_p to protocol. 7 years ago
qstrdefsport.h py: Add rules for automated extraction of qstrs from sources. 7 years ago
rng.c stmhal: Replace #include "stm32f4xx_hal.h" with #include STM32_HAL_H. 7 years ago
rng.h Add license header to (almost) all files. 9 years ago
rtc.c stmhal: L4: Modify rtc.c to support L4 MCU. 7 years ago
rtc.h stmhal: Add rtc.init() method to force RTC to re-initialise. 7 years ago
sdcard.c stmhal: Enable SD card on L4 MCUs. 7 years ago
sdcard.h extmod/fsusermount: Support mounting of multiple block devices. 7 years ago
servo.c py: Change first arg of type.make_new from mp_obj_t to mp_obj_type_t*. 7 years ago
servo.h Add license header to (almost) all files. 9 years ago
spi.c stmhal/spi: Support new machine SPI methods in legacy SPI object. 6 years ago
spi.h stmhal: Extend SPI support to fully support all SPI devices on STM32F429. 7 years ago
startup_stm32.S stmhal: L4: Adapt startup code, clock configuration and interrupts. 7 years ago
stm32_it.c stmhal: Fix timer capture/compare interrupt handling for TIM1 and TIM8. 6 years ago
stm32_it.h stmhal: Enable two USB phys to be supported together. 7 years ago
storage.c stmhal: L4: Modify flash.c and storage.c to support L4 MCU. 7 years ago
storage.h extmod/fsusermount: Support mounting of multiple block devices. 7 years ago
system_stm32.c stmhal: L4: Adapt startup code, clock configuration and interrupts. 7 years ago
systick.c stmhal: Replace #include "stm32f4xx_hal.h" with #include STM32_HAL_H. 7 years ago
systick.h stmhal: Make pyb.[u]delay use systick with IRQs, busy loop otherwise. 8 years ago
timer.c stmhal: Remove obsolete code for special handling of TIM3 irq settings. 6 years ago
timer.h stmhal: Add PWM capability for LED(3) and LED(4) on pyboards. 7 years ago
uart.c all: Rename mp_obj_type_t::stream_p to protocol. 7 years ago
uart.h stmhal: uart.any() function now returns number of bytes available. 7 years ago
usb.c all: Rename mp_obj_type_t::stream_p to protocol. 7 years ago
usb.h stmhal: Enable two USB phys to be supported together. 7 years ago
usbd_cdc_interface.c stmhal: Make TIM3 available for use by the user. 7 years ago
usbd_cdc_interface.h stmhal: Make USB CDC driver use SOF instead of TIM3 for outgoing data. 7 years ago
usbd_conf.c stmhal: L4: Modify usbd_conf.c to support L4 MCU. 7 years ago
usbd_conf.h stmhal: Replace #include "stm32f4xx_hal.h" with #include STM32_HAL_H. 7 years ago
usbd_desc.c all: Add py/mphal.h and use it in all ports. 7 years ago
usbd_desc.h stmhal: Fix USB CDC-only mode under Windows. 7 years ago
usbd_msc_storage.c stmhal: Include fatfs headers using lib/fatfs prefix. 8 years ago
usbd_msc_storage.h Add license header to (almost) all files. 9 years ago
usrsw.c py: Change first arg of type.make_new from mp_obj_t to mp_obj_type_t*. 7 years ago
usrsw.h Add license header to (almost) all files. 9 years ago
wdt.c stmhal/wdt: Implement keyword args to WDT constructor. 6 years ago
wdt.h stmhal: Add machine.WDT class. 6 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

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