TMS320F28335: EPWM seemless transition

Anupriya Soni

Part Number: TMS320F28335
Other Parts Discussed in Thread: C2000WARE, SYSCONFIG

Tool/software:

Hi, I wanted some help in coding of TMS320F28335. I wanted to use 14 PWM outputs. and I want duty cycle to vary between 0 to 100%, and this effect should shift from one pwm output to another, and it should not look as if shift is there or in other words transition should be smooth

over 1 year ago

0 Aishwarya Rajesh over 1 year ago

TI__Mastermind 18635 points

Hi Anupriya,

The expert is currently out of office, so please expect a 1–2-day delay in response. Thank you.

Best Regards,

Aishwarya

0 Allison Nguyen over 1 year ago

TI__Mastermind 25560 points

Hello,

Please be sure to take a look at our EPWM C2000Ware software examples to help as a starting point. These can be found in C2000Ware at C:\ti\c2000\C2000Ware_5_02_00_00\device_support\f2833x\examples.

If there are specific questions you have on an issue you run in to in development, I can provide some more focused guidance to assist.

Best Regards,

Allison

0 Anupriya Soni over 1 year ago in reply to Allison Nguyen

Prodigy 10 points

Hi I have gone through examples. But I finf it tough to code in Embedded C to get desired results. Can you suggest some other source to learn or to get some help in coding

0 Luke Jones over 1 year ago in reply to Anupriya Soni

TI__Mastermind 28580 points

Hello,

The appropriate expert for this question is currently out of office, returning on Monday 9/16. Please expect a response back by then.

Thank you,

Luke

0 Allison Nguyen over 1 year ago in reply to Anupriya Soni

TI__Mastermind 25560 points

Hello,

We unfortunately do not have documentation directly outlining an application example of this, but we have several intro to EPWM videos/documentation/examples, though these resources are targeted for newer/Generation-3 C2000 devices F28335 is considered Generation-2), so some of the material and examples may not apply to F28335 (for example, F28335 does not have Sysconfig GUI support):

EPWM Developer's guide
EPWM Video Series
C2000 Academy EPWM page
Device TRM EPWM Chapter
C2000Ware EPWM software examples as I pointed out earlier

Hope these resources help in your learning of EPWM! If you have a more specific question or issue in your program, feel free to create another post for your inquiry as well.

Best Regards,

Allison

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TMS320F28335: EPWM seemless transition