faith1985rjy / stm32-uart-dfu

Simple cli python3 program for stm32 uart dfu

stm32-uart-dfu

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

Requirements:

pyserial

Usage:

Available dfu operations:

• get 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.

For available commands:

> python3 uart-dfu.py --help

For specific command help:

> python3 uart-dfu.py load --help

Example:

> python3 uart-dfu.py --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.