CCS/TMS320F28035: Generating Epwm waveforms

Silpa,

are you having an issue? That code is simply an example of what the setup code should ideally look like. That code snippet looks like it should setup the sync chain, but I would recommend you verify it by synchronizing to different values. You will still need to write the code to control the duty cycles for each PWM.

If you would like to used the dead-band submodule, please download C2000Ware and look at the following example. <install-directory>\c2000\C2000Ware_1_00_06_00\device_support\f2803x\examples\c28\epwm_deadband.

If you ask a question I will try to answer it.

Regards,
Cody 

Hi,

I have modified the deadband submodule example <install-directory>\c2000\C2000Ware_1_00_06_00\device_support\f2803x\examples\c28\epwm_deadband and also the epwm_updown_aq example as per the code snippet provided in page 295 of the technical reference .Still am getting only a constant value at the ePWM pins .

Regards ,
silpa

Silpa,

         What do you mean by

silpa JAYARAJ said:

Still am getting only a constant value at the ePWM pins .

Are you seeing a constant logic high or logic low level? If so then you have broken the examples when merging code. Have you tried running the unmodified example? Check your GPIO configurations, the clocking, check your Action Qualifier settings

Are you seeing a PWM output, but at a fixed period and duty? This wouldn't be to surprising because you will likely need to write the code to modify the compare values.

Regards,
Cody