Could you tell me the differences ePWM and HRPWM?
What kind of use case each PWM functions will be useful?
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HRPWM is an additional feature of ePWM module. It allows you change the positioning of your edges in pico-seconds. Where ePWM module you get a resolution of nano-seconds. You only use HRPWM and deal with the complexities of the module, if you absolutely need that type of pico-second resolution.