OMAP-L138: OneShot with eHRPWM

Risto Hedman

Part Number: OMAP-L138

Hi,

Is it possible to give an oneshot with programmable length to eHRPWM output with a programmable delay related to a signal input, rising or falling edge? Preferrable an input directly to eHRPWM, not through GPIO- interrupt.

Thank you,

Risto

over 6 years ago

0 Yordan Kovachev over 6 years ago

TI__Guru**** 161600 points

I checked the documentation, and I wasn't able to find an evidence that this is supported.
Let me confirm this with the design team.

Best Regards,
Yordan

0 Mukul Bhatnagar over 6 years ago

TI__Guru* 78395 points

Hi Risto
We don't have any examples and I am not aware of anyone explicitly trying this out, but I believe this is feasible , you could synchronize the PWM module to a GPIO input, as shown in Figure 17-1 (Multiple ePWM Modules) of the TRM. You could then use the Dead-Band Generator Submodule to implement the delay.

Let us know if that helps or you see an issue.

Regards
Mukul

0 Risto Hedman over 6 years ago in reply to Mukul Bhatnagar

Expert 1760 points

Thenk you Mukul,

And sorry for my delayed reply. I have not tested this yet - we decided to use TIVA- microcontroller instead.

Regards,

Risto

Processors

Processors forum

OMAP-L138: OneShot with eHRPWM