Hi,
I am using NUCLEO-U545RE-Q with X-NUCLEO-NFC07A1.
After downloading a program via Arduino IDE, the board got locked.
Symptoms:
- PC cannot detect the board, no ST-LINK device, no COM port
- ST-LINK LED: red always on, green flashing
- STM32CubeProgrammer cannot connect, error: No debug probe detected
- Connect Under Reset does not work
What I tried:
- power cycling
- holding RESET when plugging USB
- Connect Under Reset in CubeProgrammer
- checking CN2 jumpers (they are fine)
Questions:
- How can I unlock or erase this board without a BOOT0 jumper? It seems not available on this NUCLEO board.
- Is there any software-only way to recover the SWD?
This board is for a competition. Any help is appreciated. Thanks.
