topic Re: How to know the microcontroller restart reason in Kinetis Microcontrollers

How to know the microcontroller restart reason

sudhanshumehta — Tue, 16 May 2023 14:07:10 GMT

Hello,

We are using MK221M controller.

RTOS MQX4.2

I need to know the restart reason of microcontroller on every reboot.

Example: Microcontroller can restart due to Watchdog, power cycle etc.

Can you please suggest me way to do that?

Thanks

Sudhanshu

Re: How to know the microcontroller restart reason

danielchen — Thu, 18 May 2023 14:21:43 GMT

Hi @sudhanshumehta

I would suggest you ask our partner, Embedded Access, for this question.

https://embedded-access.com/

Regards

Daniel

Re: How to know the microcontroller restart reason

bobpaddock — Thu, 18 May 2023 20:27:47 GMT

I've not used this part, does it have a Reset Control Module (RCM)?

Look for something like System Reset Status Register 0 (RCM_SRS0 and SRS1) etc.

Some times there are also 'sticky' copies. Better to use those results if available.

Re: How to know the microcontroller restart reason

sudhanshumehta — Fri, 19 May 2023 12:44:25 GMT

Yes RCM->SRS0, RCM->SRS1 are the registers. this is complete detail. bobpaddock was right. you can read printf ("\r\n Restart reason code %.02x %.02x", RCM->SRS0, RCM->SRS1);

Re: How to know the microcontroller restart reason

sudhanshumehta — Fri, 19 May 2023 12:45:19 GMT

for more details my reply is below