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Thanks for the reply. Actually, there are no breakpoints/watchpoints inserted. I think that what the info msg is saying (stm32f4x.cpu: hardware has 6 breakpoints, 4 watchpoints) refers to the actual hardware capabilities of the MCU.

This is actually the case. When the process starts, the led(s) on the j-link, as stated, start flickering (red/green), right after the debug session is launched. I can even read the target voltage from the console. Can you confirm that the JSON file offered as in the example in https://www.bitcraze....

Using the virtual machine provided by BitCraze, I followed the instructions on https://www.bitcraze.io/documentation/repository/crazyflie-firmware/master/development/openocd_gdb_debugging/ to enable on-chip debug on VS code. Still, the GDB times out before starting the debug session, with the follow...