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CCS/TMS320F28335: How to change the Pulse-width modulation(PWM) signal frequency?

Chen Yan-Li
Intellectual 395 points

Part Number: TMS320F28335
Other Parts Discussed in Thread: CONTROLSUITE

Tool/software: Code Composer Studio

Hi,

I'm using Code Composer Studio(CCS) 5.3.0.00090
And I find a example project called "Example_2833xEPwmUpDownAQ" from controlSUITE

My question is, how to change the "PWM output signal" from TI example project.
When the program is process, I can get the PWM signal from DSP epwm pins.
but I don't know how to change PWM frequency, is there any way to change the PWM frequency?
Is this question related to the interrupt time of the program? and how can I change each interrupt timing?

And, is there any method to calculate the PWM frequency or interrupt time I want?


Thanks for your help!

Best Regards, Chen Yan-Li