Hi, 

I would try to debug some code with a bluepill (STM32F103C), but i can't get it to work.

After compiling the sketch i got a messagebox with "Unable to start debugging. GDB exited unexpectedly with exit code 1 (0x1)

the following things i tried

-tried debugging with "PlatformIO" here the debugging works perfectly, so the driver/wiring  can not be an issue.
-updating the arm GDB driver in the arduino\tools directory
-tried another ST-LINK v2 debugger.
-updated the USB driver (by using the tutorial on the website)
-followed the troubleshooter on the web
-also tried it on another computer. but with exactly the same result.


in the openOCD log there are 2 lines confusing me:

Info : Listening on port 3333 for gdb connections
Error: couldn't bind tcl to socket on port 6666: No error

are openOCD and gdb listening on different ports?
if i look in the openOCD cfg file, the gdp port is setted to 3333. 

i hope someone can help me.