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SPC58EC, The chip is reset when HSM starts Host. How to find the reason?

weizg
Associate

I have written the HSM DCF client , including "HSM Enable" and "BAF wait HSM handshake". So the host will not start until HSM releases the start flag.

But, if I let HSM delaying for more than 1.5s before releasing the flag of starting the Host, the Host will not start, or it will only start after the chip is abnormal reset several times, and this process lasts for more than 10 seconds.

 

About the watchdog of BAF, I checked that SWT2 was not enabled while HSM was delaying. This is the register content of SWT2: 

weizg_0-1731389788275.png

weizg_1-1731390440592.png

 

About the RGM_DES, after the abnormal reset, it shows 'A software destructive reset event has occurred'.

weizg_3-1731390544459.png

 

I don't know the specific reason for the reset and how to solve it, please help me answer.

Thanks.

 

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