TMS320F28388D: Synchronizing PWM

Stevin Martin

Part Number: TMS320F28388D
Other Parts Discussed in Thread: C2000WARE

Dear all,

How to Configure Synchronization of 2 PWM. I have referred example project for the same but not sure it works or not. When i am changing timer period register to multiple of other with or without using synchronizing functions i am able to get a synchronized output.

Kindly guide me to Asynchronies 2 pwm out puts and then re synchronize the same , thus i can understand how it works...

Thanks and regards,

Stevin Martin

over 3 years ago

0 Nima Eskandari over 3 years ago

TI__Guru 52040 points

To take a PWM out of sync scheme all you have to do is CLEAR the PHSEN bit to 0. Have you tried this?

0 Stevin Martin over 3 years ago in reply to Nima Eskandari

Prodigy 170 points

Hello,

I have now tried it but when am changing the duty cycle pulses are getting out of sync.

Kindly help me with the configuration side of pwm for Synchronisation.

What all needed to be done at Master pwm and what all need to be done at slave side.

Thanks and regards,

Stevin Martin

0 Nima Eskandari over 3 years ago in reply to Stevin Martin

TI__Guru 52040 points

Stevin Martin said:
Asynchronies 2 pwm out puts and then re synchronize the same

Stevin, I am a bit a confused as to what we are trying to do. From your post I was assuming the below was your answer:

Yes when you disable PHSEN you go async.

When you set it you go sync.

I'm guessing you have looked at the EPWM Example 3 in C2000WARE 4.01?

dev.ti.com/.../node

0 Stevin Martin over 3 years ago in reply to Nima Eskandari

Prodigy 170 points

Hello,

I was able to synchronize the output. I was wrong at setting phase load value. Now I understand the concept and its working. Thank you for supporting all the way through ..and for all sudden replies.

Thanks and regards,

Stevin Martin

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28388D: Synchronizing PWM