Problem with debugging using keil

[ZYang.2]

Hi 

I was using Keil 5 to debug my code on #1 board, somehow the code was kind of stuck, it has no response to reset, and cannot run anywhere, the same code works with no issue on the other self-build board(these two are basically the same), this #1 board works also with no issue earlier today, this situation just suddenly happened. It has no problem with compile, download, enter debug mode.... I`ve drained my brain and cannot figure out what is wrong,,, any suggestions??

Thanks in advance.

[Imen.D]

Hello @ZYang.2​ ,

Welcome to the STM32 Community 🙂

Please share as much details as possible to help you solve your issue.

Which device are you using ? Localize where the code hangs/stop, identify what is the problem that you see and when it occurs.

You can share a screenshot, or your code if this issue is not resolved.

Imen

[Tesla DeLorean · Accepted solution]

Make sure BOOT0 pin is pulled low.

Check clock settings and sources.

Add code to report if Error_Handler or HardFault_Handler​ are entered.

Check you are reconfiguring debug pins or entering low power states.​

[ZYang.2]

Thanks clive1

The BOOT0 is exactly the reason why the code couldn`t run. I noticed that the voltage on BOOT0 was somehow pull to 2.7V.