Hi OH, If the customer is trying to control both edges (rising and falling) of the PWM with high-resolution (MEP control of both edges), they unfortunately cannot use up-count. They must use up-down count for this. This is due to internal calculations needed for HR capability on each edge and loading of values on the CTR = 0 and CTR = PRD events. The best way to implement HRPWM for period and duty control is to use up-down count with action qualifiers on CMPx-up and CMPx-down. Is there a specific reason the customer wants to use up-count? Best Regards, Allison
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