CCS/TMS320F28377D: tms320f28377d

Ashrumochan NathSharma

Part Number: TMS320F28377D
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

Dear friends,

I want to generate a ramp wave using PWM module available on TMS320F28377D.I dont have any idea regarding this.can anyone please help me solve out this problem?

Regards,

Ashrumochan

over 7 years ago

0 Devin Cottier over 7 years ago

TI__Guru 60865 points

Hi Ashrumochan,

The up-down count ePWM example in C2000ware ramps the duty cycle up and down, so this should be a pretty good start for generating a ramp.

\device_support\f2837xd\examples\cpu1\epwm_updown_aq\cpu01\epwm_updown_aq_cpu01.c

0 Ashrumochan NathSharma over 7 years ago in reply to Devin Cottier

Intellectual 400 points

Thanks Devin,

I will get through that .Will it work like parallel . Means only initialization will be ok or every time i have to modify the cpma cmpb values.

Regards,

Ashrumochan

0 Devin Cottier over 7 years ago in reply to Ashrumochan NathSharma

TI__Guru 60865 points

Hi Ashrumochan,

You'll have to write a new compare value every time you want to change the duty cycle. It is probably possible to do this with the DMA if you don't want the CPU involved.

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CCS/TMS320F28377D: tms320f28377d