JLINK 'waiting for GDB connection' very slow

fter · April 22, 2022, 8:54am

Hi,
When debuging with a Segger JLINK and ardvino mkr1010, connection to GDB takes about 60 sec!
If I do the same with ardvino IDE 2.0, the connection is instantaneous.
May be the parameters given to arm-none-eabi-gdb.exe are not the same with platformIO?
Who knows how to check these parameters? Any idea on what is causing the 60 sec wait?
Here is a screenshot of Segger and log on ardvino IDE

Fred

maxgerhardt · April 22, 2022, 11:39am

Open a CLI and use pio upgrade --dev and retry debugging. Is it still slow in PlatformIO?

fter · April 22, 2022, 2:50pm

I upgrade but still very slow.
The debug console gives:

maxgerhardt · April 22, 2022, 2:56pm

Pretty sure you’re running into the 60sec timeout programmed in

github.com

platformio/platformio-core/blob/5a0a215bfcee0240018feb6f3ff7f4bce4bcab6a/platformio/debug/process/server.py#L110-L119


      
          async def _wait_until_ready(self):
              ready_pattern = self.debug_config.server_ready_pattern
              timeout = 60 if ready_pattern else 10
              elapsed = 0
              delay = 0.5
              auto_ready_delay = 0.5
              while not self._ready and self.is_running() and elapsed < timeout:
                  await asyncio.sleep(delay)
                  if not ready_pattern:
                      self._ready = self._last_activity < (time.time() - auto_ready_delay)

Meaning PlatformIO can’t recognize the ready pattern of the JLink server correctly.

github.com

platformio/platformio-core/blob/5a0a215bfcee0240018feb6f3ff7f4bce4bcab6a/platformio/debug/config/jlink.py#L44-L46


      
          @property
          def server_ready_pattern(self):
              return super().server_ready_pattern or ("Waiting for GDB connection")

You can try to adapt the debug_server_ready_pattern.

Ohterwise, please report to Issues · platformio/platformio-core · GitHub with your exact platformio.ini.

fter · April 22, 2022, 4:00pm

Yes, 60 sec what I see.
I try the following pattern but no change

framework = arduino
debug_tool = jlink
debug_server =  C:/Program Files (x86)/SEGGER/JLink/JLinkGDBServer
  -singlerun
  -if
  SWD
  -select
  USB
  -port
  2331
  -device
  ATSAMD21G18

[env:custom_debug_server_ready_pattern]
debug_server_ready_pattern = ^.\*Waiting.\*

maxgerhardt · April 22, 2022, 4:14pm

PlatformIO can’t read the output of GUI program, you must use the CLI version… Use JLinkGDBServerCL.exe instead of JLinkGDBServer. Without any debug_server_ready_pattern.

Also if you wanted to use one you should not create a new env: for it, but add the option to the envrionment you’re using. (But first do per above).

fter · April 22, 2022, 4:52pm

Great, it’s now working perfectly with the CLI version!
Thanks a lot