When I try to debug STOP0 feature and waking up, MCU can't be programmed by STM32 Cube Programmer. It seems that it is locked. Anybody know how to unlock it?

BWang.1 · ‎2021-03-29

Radosław · ‎2021-03-29

Did you set connect under reset?

BWang.1 · ‎2021-03-30

Sorry! I need update the information. the possible reason is that the .hex file is not OK. Current I already saved one electronic board by recovering option byte. But another board can't be connected to STM32 Cube Programmer.��

How to connect under reset? set reset to low level and then try to connect?

Radosław · ‎2021-03-30

this is option in cubeprogrammer.

BWang.1 · ‎2021-03-30

Already found out it!

Thanks. Tomorrow I will try!