Hi Junyeong, [quote userid="609249" url="~/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1499747/tms320f28377s-inquire-about-cevt-of-ecap-and-method-to-link-epwm/5764771#5764771"] When we ran ecap on the board in debug mode by inputting a signal, asm stopped at capture register CAP 2, 3, and 4 and was suspended in debug mode. It has been confirmed that changing TBPRD of EPWM in the interrupt code works well when used without this part of the code. [/quote] Can you ensure that the PWM's are outputting correctly and that the outputs are connected to the eCAP input pins? I am unable to replicate the issue and this example works fine. Best, Ryan Ma
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