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LAUNCHXL-F280039C: CCS Error -2131

Part Number: LAUNCHXL-F280039C

Tool/software:

Hello,

I am quite new to CCS and C2000 coming from STM32 CubeIDE/MX.

I am trying to learn PWM and imported "epwm_ex1_trip_zone" from Project Wizard.

When I tried to debug, this error came out.

This error does not appear on other ePWM examples, so it could not be a hardware issue as suggested to restart and unplug the device.

Pls help to resolve the problem.