STM32 Nucleo

Board

• https://en.wikipedia.org/wiki/STM32#Development_boards
  
• NUCLEO-F302R8 board for STM32F302R8T6 MCU with 72 MHz Cortex-M4F core, 64 KB flash, 16 KB SRAM.

Documentation

• https://os.mbed.com/platforms/ST-Nucleo-F302R8/#getting-started

Software - Void Linux

1. Install software

   xi stlink

2. Set up udev rules (as root)
   

   #/etc/udev/rules.d/stm32nucleo.rules
   SUBSYSTEM!="usb|usb_device", ACTION!="add", GOTO="stm32nucleo_end"
   ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", SYMLINK+="stm32-%k", MODE="660", GROUP="input"
   LABEL="stm32nucleo_end"

   
   
3. Connect device
4. Probe for the device st-info --probe; should print something like this:
   

   Found 1 stlink programmers
     version:    V2J33S25
     serial:     066FFF5155xxxxxxxxxxxxx
     flash:      65536 (pagesize: 2048)
     sram:       40960
     chipid:     0x439
     dev-type:   STM32F301_F302_F318

5. Read "main" area
   

   st-flash read /tmp/main.bin 0x0 0xFFFF

Debugging

1. Install tools
   

    xi cross-arm-none-eabi cross-arm-none-eabi-gdb

   
   
2. Using  GDB
   1. Connect to device
      

      st-util

   2. Run GDB
      

      arm-none-eabi-gdb -ex 'target extended-remote localhost:4242'