message: add STM32 protection bits unlock command to makefile
diff: @@ -40,6 +40,10 @@ erase:
  erase_config:
  $(OPENOCD) -c init -c reset\ halt -c flash\ erase_address\ 0x80C0000\ 0x40000 -c reset\ init -c reset\ run -c exit
  +# Sometimes the STM32 will get it's protection bits set for unknown reasons. Unlock it with this command
  +unlock:
  + $(OPENOCD) -c init -c reset\ halt -c stm32f2x\ unlock\ 0
  +
  # The one-time programmable memory stores the board version
  # has the following format:
  # - OTP format version (0xFE: version 1)
  