Hi Everyone!
I’m trying to use Black Magic Probe to update the firmware in my device and to debug it. I faced this problem: debugger doesn’t restart the board automatically, so I should do it manually every time (power off and power on). Could someone please help me to make the BMP reset the board automatically after each firmware update?
Some additional information:
- I’m using not the original BMP but the clone called Bumpy.
- I’m using the custom board based on STM32F334K8T6. Previously I used ST-LINK to upload the firmware and this problem didn’t exist.
- I connected {+3V3, GND, SWDIO, SWCLK, NRST} from the debugger to my device.
- Please check the content of platfromio.ini below.
- Except for this problem uploading and debugging work fine.
- I tried to look into this problem and that’s what I found: there is a file called initcfgs.py which defines which GDB command pio will use to interact with the debugger. As I understand, to restart the target there should be something like
monitor reset. In fact, the content ofpio_reset_run_targetforGDB_BLACKMAGIC_INIT_CONFIGentry is quite strange for me (again, you can check it below). Of course, I could be wrong as I know almost nothing about GDB
platformio.ini:
[env:nucleo_f334k8]
platform = ststm32@9.0.0
board = nucleo_f334k8
framework = arduino
upload_protocol = blackmagic
debug_tool = blackmagic
debug_port = COM9
fragment of initcfgs.py:
GDB_BLACKMAGIC_INIT_CONFIG = """
define pio_reset_halt_target
set language c
set *0xE000ED0C = 0x05FA0004
set $busy = (*0xE000ED0C & 0x4)
while ($busy)
set $busy = (*0xE000ED0C & 0x4)
end
set language auto
end
define pio_reset_run_target
pio_reset_halt_target
end
target extended-remote $DEBUG_PORT
monitor swdp_scan
attach 1
set mem inaccessible-by-default off
$LOAD_CMDS
$INIT_BREAK
set language c
set *0xE000ED0C = 0x05FA0004
set $busy = (*0xE000ED0C & 0x4)
while ($busy)
set $busy = (*0xE000ED0C & 0x4)
end
set language auto
"""
Or should there be a separate command to restart? For example, BMP supports this command: