The NRF52832 did not halt after hardware Reset Pin Reset.

RE: The NRF52832 did not halt after hardware Reset Pin Reset.

wen jin zhang — Fri, 09 Apr 2021 01:45:10 GMT

Hi Marte:

Thanks for your help.

So the Debug Module(CTRL-AP, AHB-AP, DAP bus interconnect, TPIU, and POWER) will be reset by Hardware Pin Reset. Is there have workaround can keep these alive when it actived? such as config in UICR?

BTW, re-initialize nrf52832 DAP will working on this case. But we like more same behavior as other company Cortex-M0+/M3/M4/M7 MCUs solution.

RE: The NRF52832 did not halt after hardware Reset Pin Reset.

Marte Myrvold — Thu, 08 Apr 2021 13:15:29 GMT

Hi,

I asked one of our developers to clarify this.

Pin reset does not reset the debug port, but it will reset the access ports and the debug logic in the ARM core. So if you look at the debug and trace overview here, then SW-DP will not be reset, but the following will be: CTRL-AP, AHB-AP, DAP bus interconnect, TPIU, and POWER.

So what is happening in your case is that core debug is under Debug, and not SWJ-DP, so they are reset, as you can see from the table of reset behavior here. Because of this, the processor is no longer in debug mode and will therefore not stop at the breakpoint after a pin reset.

Best regards,

Marte

RE: The NRF52832 did not halt after hardware Reset Pin Reset.

Marte Myrvold — Wed, 31 Mar 2021 13:17:46 GMT

Hi,

Due to Easter we are short on staff, and several of our experts are out of office. I will come back to you early next week.

Best regards,

Marte