topic SIM_RSTSTS is 0x0000 in Digital Signal Controllers

SIM_RSTSTS is 0x0000

Mike_d — Tue, 06 Mar 2018 17:22:52 GMT

Hi,

I'm trying to track down a reset issue on a 56F8345. At first the SIM_RSTSTS register would show a COP reset but I can never hit a breakpoint in the COP isr. After disabling the COP it continues to reset and now the SIM_RSTSTS is 0x0000 after a reset. What could cause this kind of behavior?

Regards,

-Mike

Re: SIM_RSTSTS is 0x0000

xiangjun_rong — Fri, 09 Mar 2018 09:09:13 GMT

Hi, Mike,

The COP module can not generate interrupt, it can only generate COP Reset. you can not hit break point even if you set break point at the P:0x0002, it is debugger problem, that is way you can not hit interrupt if you setting break point at P:0x0002. You can not hit interrupt if you set break point at interrupt vector table.

If the SIM_RSTSTS is 0x0000 , it means that Reset event does not happen.

Hope it can help you

Xiangjun rong

Re: SIM_RSTSTS is 0x0000

marco76 — Fri, 23 Mar 2018 11:52:01 GMT

We have a similar problem. Often our application based on 56F8345 resets and we find in the registry SIM_RSTSTS 0x0000.
I wanted to ask you if you're using the CANbus module? Because I have doubts that it may be the cause.
I also wanted to ask you if you have the watch dog enabled?

Regards

Marco