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 boot or flash area
   

   st-flash read /tmp/boot.bin 0x0 0x10000 # flash if booting from flash
   st-flash read /tmp/flash.bin 0x8000000 0x10000 # flash

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'

Using OpenOCD

1. Install
   

   xi openocd inetutils-telnet

2. Run server
   

   openocd -f interface/stlink.cfg -f target/stm32f3x.cfg

3. It should print something like
   

   Info : STLINK V2J33M25 (API v2) VID:PID 0483:374B
   Info : Target voltage: 3.238345
   Info : [stm32f3x.cpu] Cortex-M4 r0p1 processor detected
   Info : [stm32f3x.cpu] target has 6 breakpoints, 4 watchpoints

4. Now you can telnet to the debugger: telnet localhost 4444
   

   halt
   reg
   # read output register of port B
   read_memory 0x48000414 32 1
   # disable LED on PB-13
   write_memory 0x48000414 32 0x0
   # enable LED on PB-13
   write_memory 0x48000414 32 0x2000

Rust

Tools:

rustup target add thumbv7em-none-eabihf