[DRA829]TimerIO output PWM problem

Linda Xie

Other Parts Discussed in Thread: DRA829

Hi,Experts

Is it possible to achieve two-way synchronization and reverse functions by using TimerIO to output PWM?
Now I configure two TimerIO to bind the same Timer to realize the synchronization function, but how to realize the two PWM symmetrical inputs?

As below:

Regards,

Xie

over 5 years ago

0 Shiou Mei Huang over 5 years ago

TI__Genius 10180 points

Xie,

Do you mean your system will have external generator outputting PWM signals into the I/O pins over certain period of time, then switch over to have DRA829 output PWM signals on the exact same pins for another period of time?

What do you plan to achieve with the external PWM signals (input into DRA829)? Have you checked the Timer Capture Mode described in the TRM to see if it suits your purpose?

Thanks & Regards,

Shiou Mei

0 Linda Xie over 5 years ago in reply to Shiou Mei Huang

Intellectual 450 points

Hi,Shiou Mei

Sorry, the pwm is output not input.

Regards,

Xie

0 Shiou Mei Huang over 5 years ago in reply to Linda Xie

TI__Genius 10180 points

Xie,

You can configure the Timer registers to output PWM using the same condition. Depending on the accuracy you need, consider using eHRPWM since the module offers SYNC inputs/outputs.

Best Regards,

Shiou Mei

0 Linda Xie over 5 years ago in reply to Shiou Mei Huang

Intellectual 450 points

Hi，Shiou Mei

yes, I already used EPWM to meet our needs.

Regards,

Xie

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[DRA829]TimerIO output PWM problem