When debug STM32F030RCT6 with Keil V5.29, can't find MCU with J-link. j-LINK have been updated to the latest version. How to do that?

sliu.1 · ‎2020-03-23

Tesla DeLorean · ‎2020-03-23

Has this CPU/Board ever worked or connected properly?

Is the NRST pin connected on the debug interface?

Try connecting when BOOT(0) pin is HIGH

Tips, Buy me a coffee, or three.. PayPal Venmo
Up vote any posts that you find helpful, it shows what's working..

sliu.1 · ‎2020-03-24

Yes, the signal is connected properly. Connect the 20pin cable to ST_LINK. It can be debugged with ST_link. But can't debug with J link