topic Re: getting the reset cause of a RT1170 in i.MX RT Crossover MCUs

getting the reset cause of a RT1170

pete2001 — Sun, 12 May 2024 08:09:37 GMT

We are going from Kinetis K64 to a RT1170 platform. I have looked long time in the RT1170 Reference Manual, but I cannot find the register that shows the reset cause of the processor. (Power-On reset, WDOG reset, Software reset etc.). I hope someone can help.

Best Regards,

Peter

Re: getting the reset cause of a RT1170

Masmiseim — Sun, 12 May 2024 11:11:37 GMT

Hello @pete2001

you can read the reset reason from the register SRC_SRSR:

The circuit on the NXP Eval boards interrupts the power supply on reset, therefore you will not see all reset reasons there.

Regards

Re: getting the reset cause of a RT1170

alfredatai — Fri, 23 May 2025 13:56:02 GMT

@Masmiseim would you please share what needs to be modified on the eval board so the system can report other reset reasons e.g. warm/WDT resets?

Re: getting the reset cause of a RT1170

Masmiseim — Sat, 24 May 2025 07:28:20 GMT

I have never tested how to customize the Eval board to see the watchdog resets, we started directly with our own design.
As you can see in the schematic, a watchdog reset interrupts the power supply briefly. I would try to remove the jumper J73 to see if you can see the watchdog as a reset reason.