circuitpython/ports/stm32
Damien George ce02d5e348 stm32/boards/NUCLEO_WB55: Add more CPU pins and aliases to SW1/2/3.
Signed-off-by: Damien George <damien@micropython.org>
2020-06-18 10:48:24 +10:00
..
boards stm32/boards/NUCLEO_WB55: Add more CPU pins and aliases to SW1/2/3. 2020-06-18 10:48:24 +10:00
lwip_inc stm32/lwip_inc: Enable LWIP_NETIF_EXT_STATUS_CALLBACK for mDNS. 2019-09-12 18:08:50 +10:00
mbedtls stm32/mbedtls: Resize mbedtls output buffer from 16 down to 4 kiB. 2019-12-21 00:02:24 +11:00
mboot stm32/Makefile: Rename SRC_LIB to LIB_SRC_C to match other ports. 2020-04-29 16:38:18 +10:00
usbdev stm32/usbdev: Fix compile error if MICROPY_HW_USB_CDC_NUM is set to 2. 2019-10-05 23:33:38 +10:00
usbhost stm32: Remove unneeded HTML release notes from usbdev and usbhost dirs. 2018-05-24 11:28:54 +10:00
Makefile stm32/Makefile: Quote libgcc path so spaces are not an issue. 2020-06-02 14:11:08 +10:00
README.md stm32/README: Reorg DFU flashing instructions with addition for PYBD. 2020-05-11 21:23:41 +10:00
accel.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
accel.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
adc.c stm32/adc: Add support to pyb.ADC for STM32WB MCUs. 2020-06-02 10:48:49 +10:00
adc.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
autoflash ports: Make new ports/ sub-directory and move all ports there. 2017-09-06 13:40:51 +10:00
btstack.c stm32: Refactor Bluetooth HCI RX to be independent of transport layer. 2020-03-10 01:53:42 +11:00
bufhelper.c ports: Convert legacy uppercase macro names to lowercase. 2019-02-12 14:54:51 +11:00
bufhelper.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
can.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
can.h stm32/can: Guard header file by MICROPY_HW_ENABLE_CAN. 2019-09-23 23:45:07 +10:00
dac.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
dac.h stm32/dac: Rework DAC driver to use direct register access. 2019-04-24 15:51:19 +10:00
dma.c stm32/dma: Add support for DMA on STM32WB, with SPI settings provided. 2020-06-02 10:48:49 +10:00
dma.h stm32: Add initial support for STM32WBxx MCUs. 2019-07-17 16:33:31 +10:00
eth.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
eth.h stm32/eth: Add low-level Ethernet MAC driver. 2019-02-26 23:32:19 +11:00
extint.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
extint.h stm32: Add initial support for STM32WBxx MCUs. 2019-07-17 16:33:31 +10:00
factoryreset.c stm32/factoryreset: Provide empty create-FS function when FAT disabled. 2020-06-17 00:09:37 +10:00
factoryreset.h stm32: Generalise flash mounting code so it supports arbitrary FS. 2019-11-25 18:10:58 +11:00
fatfs_port.c stm32/fatfs_port: Fix bug when MICROPY_HW_ENABLE_RTC not enabled. 2018-07-14 17:17:46 +10:00
fdcan.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
flash.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
flash.h stm32/flash: Remove unused src parameter from flash_erase(). 2018-05-02 13:11:56 +10:00
flashbdev.c stm32: Add support for F412 MCUs. 2020-05-15 10:08:30 +10:00
font_petme128_8x8.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
gccollect.c all: Factor gchelper code to one place and use it for unix & ARM ports. 2020-04-29 23:45:19 +10:00
gccollect.h stm32: In link script, define start of stack separately from heap end. 2019-06-14 15:29:24 +10:00
help.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
i2c.c stm32/i2c: Fix generation of restart condition for hw I2C on F0/F7. 2019-08-16 13:34:04 +10:00
i2c.h stm32/i2c: Make timeout for hardware I2C configurable. 2019-05-21 12:20:19 +10:00
i2cslave.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
i2cslave.h stm32/i2cslave: Add support for H7 MCUs. 2019-04-08 14:28:45 +10:00
irq.c stm32/irq: Fix IRQ_ENABLE_STATS stats config to work on all MCUs. 2019-05-15 16:04:01 +10:00
irq.h stm32/powerctrlboot: Fix config of systick IRQ priority on F0/L0/WB MCU. 2019-10-21 12:23:41 +11:00
lcd.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
lcd.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
led.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
led.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
machine_adc.c stm32/machine_adc: Make setting of ADC1_COMMON->CCR clearer on STM32WB. 2020-06-02 10:48:49 +10:00
machine_i2c.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
machine_spi.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
machine_timer.c all: Fix implicit floating point to integer conversions. 2020-04-18 22:42:24 +10:00
machine_uart.c stm32/machine_uart: Allow re-init'ing a static UART object. 2020-06-01 21:41:54 +10:00
main.c stm32/main: Peform a clean shutdown of btstack on soft reset. 2020-04-29 16:45:46 +10:00
make-stmconst.py all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
modbluetooth_hci.c stm32: Refactor Bluetooth HCI RX to be independent of transport layer. 2020-03-10 01:53:42 +11:00
modmachine.c stm32/modmachine: Allow changing AHB and APB bus frequencies on STM32WB. 2020-06-02 10:48:49 +10:00
modmachine.h stm32: Add machine.Timer with soft timer implementation. 2019-10-31 22:12:55 +11:00
modnetwork.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
modnetwork.h stm32/modnetwork: Replace generic netif NIC polling with specific code. 2019-06-03 17:14:34 +10:00
modnwcc3k.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
modnwwiznet5k.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
modpyb.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
modstm.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
moduos.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
modusocket.c all: Fix implicit floating point to integer conversions. 2020-04-18 22:42:24 +10:00
modutime.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
mpconfigboard_common.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
mpconfigport.h extmod/modbluetooth: Don't hold atomic section during mp_sched_schedule. 2020-04-29 16:45:40 +10:00
mpconfigport.mk extmod: Consolidate FAT FS config to MICROPY_VFS_FAT across all ports. 2019-11-11 11:37:38 +11:00
mpconfigport_nanbox.h stm32: Add configuration to build in nanbox mode. 2019-12-27 22:54:53 +11:00
mphalport.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
mphalport.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
mpthreadport.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
mpthreadport.h py/mpthread.h: Use strong type for mp_thread_set_state() argument. 2020-01-29 17:10:32 +11:00
mpu.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
network_lan.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
network_wiznet5k.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
nimble.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
pendsv.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
pendsv.h stm32: Refactor bluetooth stack/hci/driver bindings. 2020-03-10 01:53:42 +11:00
pin.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
pin.h all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
pin_defs_stm32.c all: Update Makefiles and others to build with new ports/ dir layout. 2017-09-06 14:09:13 +10:00
pin_defs_stm32.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
pin_named_pins.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
pin_static_af.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
portmodules.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
powerctrl.c stm32/modmachine: Allow changing AHB and APB bus frequencies on STM32WB. 2020-06-02 10:48:49 +10:00
powerctrl.h stm32/powerctrl: Move L0's SystemClock_Config to powerctrlboot.c file. 2019-07-08 15:23:53 +10:00
powerctrlboot.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
pyb_can.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
pyb_i2c.c all: Clean up error strings to use lowercase and change cannot to can't. 2020-04-13 22:19:37 +10:00
pyb_spi.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
pybcdc.inf_template ports: Make new ports/ sub-directory and move all ports there. 2017-09-06 13:40:51 +10:00
pybthread.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
pybthread.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
qspi.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
qspi.h stm32/qspi: Add hardware QSPI driver, with memory-map capability. 2018-03-03 00:17:08 +11:00
qstrdefsport.h all: Add *FORMAT-OFF* in various places. 2020-02-28 10:31:07 +11:00
resethandler.s stm32/main: Rename main to stm32_main and pass through first argument. 2018-03-29 16:15:57 +11:00
resethandler_m0.s stm32: Add support for Cortex-M0 CPUs. 2018-05-28 21:46:20 +10:00
rfcore.c stm32/rfcore: Leave txpower level as default when initialising rfcore. 2020-06-17 00:10:29 +10:00
rfcore.h stm32/rfcore: Leave txpower level as default when initialising rfcore. 2020-06-17 00:10:29 +10:00
rng.c stm32/rng: Use Yasmarang for rng_get() if MCU doesn't have HW RNG. 2018-05-22 10:36:03 +10:00
rng.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
rtc.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
rtc.h stm32: Implement machine.lightsleep(). 2019-01-27 11:13:32 +11:00
sdcard.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
sdcard.h stm32: Add support for MMC driver, exposed via pyb.MMCard class. 2019-04-01 17:04:43 +11:00
sdio.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
sdio.h stm32: Add low-level SDIO interface for cyw43 driver. 2019-06-03 16:53:46 +10:00
sdram.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
sdram.h stm32/sdram: Integrate SDRAM driver into rest of code. 2018-07-23 23:14:23 +10:00
servo.c all: Fix implicit floating point to integer conversions. 2020-04-18 22:42:24 +10:00
servo.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
softtimer.c stm32/softtimer: Initialise pairing-heap node before pushing to heap. 2020-03-26 01:21:04 +11:00
softtimer.h stm32/softtimer: Change linear linked list to a pairing heap. 2020-01-22 17:31:18 +11:00
spi.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
spi.h stm32/spi: Add implementation of low-level SPI protocol. 2018-08-14 22:10:43 +10:00
spibdev.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
stm32_it.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
stm32_it.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
storage.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
storage.h stm32/storage: Change storage_read/write_blocks to return int type. 2019-11-26 00:08:57 +11:00
system_stm32.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
systick.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
systick.h stm32: Refactor bluetooth stack/hci/driver bindings. 2020-03-10 01:53:42 +11:00
timer.c stm32: Add support for F412 MCUs. 2020-05-15 10:08:30 +10:00
timer.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
uart.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
uart.h stm32: Update components to work with new H7xx HAL. 2019-07-03 23:40:49 +10:00
usb.c stm32/usb: Add support for 2xVCP on L0, L432 and WB MCUs. 2020-06-17 00:09:42 +10:00
usb.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
usbd_cdc_interface.c all: Remove spaces inside and around parenthesis. 2020-03-28 23:36:44 +11:00
usbd_cdc_interface.h stm32/usbd_cdc_interface: Add CTS flow control option for USB VCP. 2019-09-26 13:50:24 +10:00
usbd_conf.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
usbd_conf.h stm32/usb: Add support for 2xVCP on L0, L432 and WB MCUs. 2020-06-17 00:09:42 +10:00
usbd_desc.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
usbd_desc.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
usbd_hid_interface.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
usbd_hid_interface.h stm32/usbd_hid_interface: Rewrite USB HID interface code. 2019-07-25 17:42:17 +10:00
usbd_msc_interface.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
usbd_msc_interface.h stm32/usb: Add "msc" kw-arg to pyb.usb_mode to select MSC logical units. 2019-06-11 16:22:09 +10:00
usrsw.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
usrsw.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00
wdt.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
wdt.h stm32: Change header include guards from STMHAL to STM32 to match dir. 2018-02-15 15:47:04 +11:00

README.md

MicroPython port to STM32 MCUs

This directory contains the port of MicroPython to ST's line of STM32 microcontrollers. Supported MCU series are: STM32F0, STM32F4, STM32F7 and STM32L4. Parts of the code here utilise the STM32Cube HAL library.

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.

The STM32H7 series has preliminary support: there is a working REPL via USB and UART, as well as very basic peripheral support, but some things do not work and none of the advanced features of the STM32H7 are yet supported, such as the clock tree. At this point the STM32H7 should be considered as a fast version of the STM32F7.

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 ports/stm32/ 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.

First the submodules must be obtained using:

$ make submodules

Then 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).

Flashing the Firmware using DFU mode

You must then get your board/microcontroller into DFU (Device Firmware Update) mode.

If you already have MicroPython installed on the board you can do that by calling machine.bootloader() on the board, either at the REPL or using pyboard.py. A nice property of this approach is that you can automate it so you can update the board without manually pressing any buttons.

If you do not have MicroPython running yet, temporarily jumper your board's DFU pin (typ. BOOT0) to 3.3v and reset or power-on the board.

On a pyboard the P1/DFU pin and a 3.3v pin are next to each other (on the bottom left of the board, second row from the bottom) and the reset button is labeled RST.

For the pyboard D-series you can enter the mboot DFU bootloader by holding down the USR button, pressing and releasing the RST button, and continuing to hold down USR until the LED is white (4th in the cycle), then let go of USR while the LED is white. The LED will then flash red once per second to indicate it is in USB DFU mode.

Once the board is in DFU mode, 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 stm32 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 ports/stm32/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