stm32-uart-dfu

Simple command-line tool that works with stm32 microcontrollers uart bootloader.

Installing dependencies and usage:

To install python and dependencies you can use pyenv and poetry (pyenv-virtualenv plugin for virtual environment):

poetry install

Or, alternatively, just run:

pip install -r requirements.txt

Usage

Available dfu operations:

• id: prints mcu id (2 bytes)
• run: MCU jumps at specified address
• erase: erase specified size of memory at address
• dump: dump specified size of memory from address to a file
• load: load binary file to memory at address.

To get all available commands:

python3 -m stm32_uart_dfu --help

To get specific command help:

python3 -m stm32_uart_dfu load --help

Example:

python3 -m stm32_uart_dfu --port /dev/ttyUSB0 load --file firmware.bin --erase -m map.json

Memory map file:

Memory map file contains mcu's flash memory sectors information (address, size). Table with flash memory organization can be found in reference manual in embedded flash memory section. Json file with memory map example for stm32f407 can be found in memory_map directory. Basically this file contains list of dicts like that:

[
  {
    "address": "0x8000000",
    "size": "0x4000"
  },
  {
    "address": "0x8004000",
    "size": "0x4000"
  },
  ...
]

Without memory map only mass erase is available.