I would like to know, if it is possible to debug the STM32MP157C-DK2 without the Serial Port (MPU Serial (/dev/ttyACM0)). I'm using the board in an mobile application and it would be very nice if I could debug the M4 like the A7 (only a GDBserver).

[PGeuc.2036]

Using the :STM32MP157C-DK2

STM32CubeIDE

[Olivier GALLIEN · Accepted solution]

Hi @PGeuc.2036​ 

Yes , you can avoid using UART by using what we call "attach" mode.

This mean you have to manage to load and start the M4 on target by your own. ( copy on target and use remoteproc command line)

Then in CubeIDE you untick "Download" option for your .elf in Debug Configuration / Startup pane / Load Image and Symbols ( double click on elf line to get access to download option in popup)

Hope it help,

Olivier

[PGeuc.2036]

Thank you @Community member​