SIM_RSTSTS is 0x0000

[Mike_d]

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

[marco76]

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

[xiangjun_rong]

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

BR

Xiangjun rong