[OpenOCD-user] Configuring builtin OpenOCD in STM32CubeIDE

[Christoph K. <ku...@ku...>]

I'm trying to run a Debug launch configuration in STM32CubeIDE but I'm getting an error:

Console:


Open On-Chip Debugger 0.12.0+dev-00623-g0ba753ca7 (2025-04-30-14:20) [https://github.com/STMicroelectronics/OpenOCD]
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : STLINK V2J46S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 2.716832
Error: init mode failed (unable to connect to the target)


Error message of STM32 popping up:


Error in final launch sequence:

Failed to execute MI command:
target extended-remote localhost:3333

Error message from debugger back end:
localhost:3333: Operation timed out.
Failed to execute MI command:
target extended-remote localhost:3333

Error message from debugger back end:
localhost:3333: Operation timed out.
localhost:3333: Operation timed out.


Any ideas what I'm doing wrong?

--
Christoph