1. ULINK is good, LED blink code download to my board run successful
2. I add disable peripheral clock, when download the code to my board, not run!
cancel disable peripheral clock code, build and download to my board again, MDK clue on JTAGE cable error!
but download other project to other board, as run good. so ulink and cable is good.
3. MCU start safeguard mode? other one?