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TMS320F280025C: How to explain QEP/QEPI Interrupt timing is not inconsistent during every time

Shaoxing Ke
Expert 3590 points
Part Number: TMS320F280025C


Tool/software:

Hi Experts,

I am asking for my customer.

The time when the customer sets the QEPI interrupt to occur is inconsistent with the time when the QEPI signal flips. The code can not ensure the QEPI interrupt timing below. Please give us debug suggestion.

Normal:

Abnormal: