FDB K64 J-Link Debugger Failed to Work

[Designer11]

Hi All,

I'm having an issue with one of the two K64 Freedom boards. Regardless what i do. I can not get this one board to enter debug mode. I've tried to flash it with the latest version of Bootloader from J-Link, and removed all the breakpoints.

Thanks,

D

[BlackNight]

Have you already checked there is no arm-none-eabi or Segger J-Link executable hanging around, e.g. point 9 in

Debugging Failure: Check List and Hints | MCU on Eclipse 

And have you tried with an external probe already (not using the OpenSDA circuit)?

I hope this helps,

Erich