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circuitpython/stmhal
Damien George 12d0731b91 extmod/vfs_fat: Remove obsolete and unused str/len members. 6 years ago
..
boards stmhal/boards: For STM32F411DISC, change I2C pin according to datasheet. 6 years ago
cmsis stmhal/cmsis: Add CMSIS file stm32f769xx.h, V1.1.2. 6 years ago
hal stmhal/hal: Update HALCOMMITS due to change in f7 hal files. 6 years ago
modules stmhal: Add default frozen-bytecode directory and link lcd160cr driver. 6 years ago
usbdev stmhal: Implement SNAK/CNAK mechanism for USB HID receive. 6 years ago
usbhost Initial checkin with STM HAL 9 years ago
.gitignore stmhal: Add support for Espruino Pico board. 8 years ago
Makefile stmhal: Use generic interrupt char code. 6 years ago
README.md stmhal/README: Add paragraph about building mpy-cross. 6 years ago
accel.c stmhal: Use mp_hal_delay_ms instead of HAL_Delay. 6 years ago
accel.h Add license header to (almost) all files. 9 years ago
adc.c all: Consistently update signatures of .make_new and .call methods. 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
can.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
can.h stmhal: Remove PYBVxx defines and use config vars for UART/CAN names. 8 years ago
dac.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
dac.h Add license header to (almost) all files. 9 years ago
dma.c stmhal/i2c: Add support for I2C4 hardware block on F7 MCUs. 6 years ago
dma.h stmhal/i2c: Add support for I2C4 hardware block on F7 MCUs. 6 years ago
extint.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
extint.h stamhal: Add definitions for MCU_SERIES_F4 and MCU_SERIES_F7 7 years ago
fatfs_port.c stmhal: Convert to use VFS sub-system and new ooFatFs component. 6 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: Rename sys_tick ticks/delay functions to corresp. mp_hal ones. 6 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 stmhal: Enable help('modules') feature. 6 years ago
i2c.c stmhal: Use mp_hal_delay_ms instead of HAL_Delay. 6 years ago
i2c.h stmhal/i2c: Expose the pyb_i2c_obj_t struct and some relevant functions. 6 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 py: Be more specific with MP_DECLARE_CONST_FUN_OBJ macros. 6 years ago
lcd.c stmhal: Use mp_hal_delay_ms instead of HAL_Delay. 6 years ago
lcd.h stmhal: Update and improve LCD driver. 9 years ago
led.c stmhal: Use mp_hal_delay_ms instead of HAL_Delay. 6 years ago
led.h Add license header to (almost) all files. 9 years ago
machine_i2c.c stmhal/machine_i2c: Provide HW implementation of I2C peripherals for F4. 6 years ago
main.c extmod/vfs_fat: Remove obsolete and unused str/len members. 6 years ago
make-stmconst.py stmhal: Add back GPIO_BSRRL and GPIO_BSRRH constants to stm module. 6 years ago
memory.h stmhal: Enable uhashlib module; add heapq, hashlib weak links. 8 years ago
modmachine.c stmhal: Use mp_hal_delay_ms instead of HAL_Delay. 6 years ago
modmachine.h py: Be more specific with MP_DECLARE_CONST_FUN_OBJ macros. 6 years ago
modnetwork.c stmhal: Disable network and usocket for ESPRUINO_PICO 6 years ago
modnetwork.h lib: Move some common mod_network_* functions to lib/netutils. 8 years ago
modnwcc3k.c stmhal/modnwcc3k: Add include for mp_hal_delay_ms. 6 years ago
modnwwiznet5k.c stmhal: Use mp_hal_delay_ms instead of HAL_Delay. 6 years ago
modpyb.c stmhal/modpyb: Use utime ticks ms/us functions instead of custom ones. 6 years ago
modstm.c all: Remove 'name' member from mp_obj_module_t struct. 6 years ago
moduos.c stmhal/moduos: Remove duplicated chdir. 6 years ago
modusocket.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
modutime.c stmhal/modutime: Consistently convert to MP_ROM_QSTR/MP_ROM_PTR. 6 years ago
mpconfigport.h stmhal: Implement a proper thread scheduler. 6 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: Rename sys_tick ticks/delay functions to corresp. mp_hal ones. 6 years ago
mpthreadport.c stmhal: Implement a proper thread scheduler. 6 years ago
mpthreadport.h stmhal: Implement a proper thread scheduler. 6 years ago
pendsv.c stmhal: Use generic interrupt char code. 6 years ago
pendsv.h stmhal: Use generic interrupt char code. 6 years ago
pin.c stmhal/pin: Add C-level pin ioctl method. 6 years ago
pin.h py: Be more specific with MP_DECLARE_CONST_FUN_OBJ macros. 6 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/moduselect: Move to extmod/ for reuse by other ports. 6 years ago
pybcdc.inf_template Rename "Micro Python" to "MicroPython" in REPL, help, readme's and misc. 7 years ago
pybstdio.c py: Add iter_buf to getiter type method. 6 years ago
pybthread.c stmhal: Implement a proper thread scheduler. 6 years ago
pybthread.h stmhal: Implement a proper thread scheduler. 6 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 py: Be more specific with MP_DECLARE_CONST_FUN_OBJ macros. 6 years ago
rtc.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
rtc.h stmhal: Add rtc.init() method to force RTC to re-initialise. 7 years ago
sdcard.c stmhal: Rename sys_tick ticks/delay functions to corresp. mp_hal ones. 6 years ago
sdcard.h stmhal: On boot, mount all available partitions of the SD card. 6 years ago
servo.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
servo.h py: Be more specific with MP_DECLARE_CONST_FUN_OBJ macros. 6 years ago
spi.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
spi.h stmhal/spi: Make machine.SPI class conform to correct API. 6 years ago
startup_stm32.S stmhal: L4: Adapt startup code, clock configuration and interrupts. 7 years ago
stm32_it.c stmhal: Rename sys_tick ticks/delay functions to corresp. mp_hal ones. 6 years ago
stm32_it.h stmhal: Add pyb.fault_debug() function, to control hard-fault behaviour. 6 years ago
storage.c stmhal: Set the FatFs partition number when initialising VFS object. 6 years ago
storage.h extmod/fsusermount: Support mounting of multiple block devices. 7 years ago
system_stm32.c stmhal: Declare and initialise PrescTables for F7 MCUs. 6 years ago
systick.c stmhal: Rename sys_tick ticks/delay functions to corresp. mp_hal ones. 6 years ago
systick.h stmhal: Rename sys_tick ticks/delay functions to corresp. mp_hal ones. 6 years ago
timer.c all: Consistently update signatures of .make_new and .call methods. 6 years ago
timer.h stmhal: Add PWM capability for LED(3) and LED(4) on pyboards. 7 years ago
uart.c py: Add iter_buf to getiter type method. 6 years ago
uart.h stmhal/uart: Add support for UART7 and UART8 on F7 MCUs. 6 years ago
usb.c py: Add iter_buf to getiter type method. 6 years ago
usb.h stmhal: Use generic interrupt char code. 6 years ago
usbd_cdc_interface.c stmhal: Use generic interrupt char code. 6 years ago
usbd_cdc_interface.h stmhal: Use generic interrupt char code. 6 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_hid_interface.c stmhal: Implement SNAK/CNAK mechanism for USB HID receive. 6 years ago
usbd_hid_interface.h stmhal: Implement ioctl for USB HID read. 6 years ago
usbd_msc_storage.c stmhal/usbd_msc_storage: Use storage functions instead of disk ones. 6 years ago
usbd_msc_storage.h Add license header to (almost) all files. 9 years ago
usrsw.c all: Consistently update signatures of .make_new and .call methods. 6 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

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