How to know the microcontroller restart reason

[sudhanshumehta]

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 

[sudhanshumehta]

 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);

[bobpaddock · Accepted solution]

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.

[sudhanshumehta]

for more details my reply is below

[danielchen]

Hi @sudhanshumehta 

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

https://embedded-access.com/

Regards

Daniel