MCU-PLUS-SDK-AM243X: EPWM examples don't follow technical manual recommendations for Proper EPWM Interrupt Initialization Procedure

Hello Traveler,

I just tested epwm_duty_cycle_am243x-lp_r5fss0-0_nortos_ti-arm-clang and did not find any issue with the example project, can you provide more context here:

• Which example are you trying
• Which version of the SDK is being used
• Which version of CCS is being used
• What EVM you are trying to run the example on
• If any changes have been made to the example

Best Regards,

Ralph Jacobi

I adapted the epwm_duty_cycle_sync example (with GPIO and PWM pin selection being the only changes) to a larger test program using 3 processors. This is on a custom board, similar to the EVM. SDK 9.0.0.35. CCS 12.4

The point is that after a long time of debugging why it was hanging randomly, I came across the note in the Technical Manual 12.4.3.4.10 Proper EPWM Interrupt Initialization Procedure. Implementing that fixed the hanging.

It would be helpful if the example PWM code (that used interrupts) and SDK documentation followed the technical manual. Otherwise we can't begin to write reliable code until we read the full 10k pages of the technical manual.