CCS/TMS320F28377D: adc_soc_epwm

long jiang

Part Number: TMS320F28377D
Other Parts Discussed in Thread: CONTROLSUITE, C2000WARE

Tool/software: Code Composer Studio

the example in ControlSuite about adc and epwm.can somebody tell me how to adjust the sample rating if the adc is triggered by epwm. i know it relate to the TBPRD Register . i am new here. thank you for help me

over 7 years ago

0 Devin Cottier over 7 years ago

TI__Guru 60865 points

Hi Long Jiang,

The ePWM is a timer and is being used to periodically trigger the ADC. Conceptually increasing TBPRD will decrease sample rate (because the timer period will be longer). You'll definitely want to read a little bit about the ePWM module in the ePMW chapter of the TRM (and you also might want to try out some of the ePWM examples in C2000ware where you can observe the ePWM output on a pin)

The following thread also has some information that could be useful if the sample rate isn't lining up with you calculated expectations:
e2e.ti.com/.../2350370

0 long jiang over 7 years ago in reply to Devin Cottier

Prodigy 180 points

thanks

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CCS/TMS320F28377D: adc_soc_epwm