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RM57L843: VCLK problem in NHET module

Part Number: RM57L843
Other Parts Discussed in Thread: HALCOGEN

Hello, TI engineer:

I have problem in NHET clock issue, my GCM configuration is as following:

And NHET configuration is as following:

I test the period of my NHET PWM outputs. It was found that the loop time is smaller than the design, the I found the HR clock is 75MHz instead of 50MHz.

What's the mistake I took?