2022-07-25 08:50 PM
2022-07-25 09:14 PM
What does the error message actually say? Target Not Found?
Did you get the LDO/SMPS settings wrong?
Try power cycling the board with BOOT0 HIGH, see if it will connect, and then erase the broken user code.
2022-07-25 09:20 PM
Yes, the real error is "Target not found". I am trying to try the way you suggested. Thank you.
2022-07-26 12:58 AM
Please don't put the entire post in the Title - see:
https://community.st.com/s/article/How-to-Post
Limit the title to ~ 70 characters.
#KeepTitleShort
2022-07-26 01:20 AM
Oh my bad mistake, thanks for the reminder.