TMS320F28379S: Multiple pwm syncs

JA Power

Hello All

Is the TMS320F28379S (epwm type4) capable of sending multiple pwm syncs to the internal comparators during PWM mode up_down count? I want to reset the ramp generator at T=0 and T= period from a single pwm channel in up_down count mode. I am already able to achieve this with an interrupt routine but would like achieve this without an interrupt.

Thanks in advance for your suggestions

over 8 years ago

0 Kris Parrent over 8 years ago

TI__Genius 15260 points

Hi JA Power,

This is not possible with a signal PWM module. Which PWM are you using? Is anything else using that PWM's SYNCOUT and is that PWM using SYNCIN?

If you have an extra EPWM module that you could run at 2x the frequency of this PWM and sync with this module that should work for you. You would then use the SYNCO of the dummy PWM to send to the comparator.

Regards,
Kris

0 JA Power over 8 years ago in reply to Kris Parrent

Prodigy 110 points

That could work, thanks for the suggestion

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TMS320F28379S: Multiple pwm syncs