CC2340R5: One LGPTimer with 2 different frequency PWM output?

Connor

Prodigy 270 points

Part Number: CC2340R5

Tool/software:

Hi teams,

With the limited hardware resource, I only have one LGPtimer left.

Is it possible to output 2 different frequency PWM by two channels?

PWM1: 1kHz duty 1/5

PWM2: 3kHz duty 1/3

Or is there any other recommended solution ?

Thanks,

BR,

Connor.

1 month ago

0 Ryan Brown1 1 month ago

TI__Guru**** 208947 points

Hi Connor,

This is a known limitation of the F3 SDK PWM TI Driver, here are some relevant E2E threads:

https://e2e.ti.com/f/1/t/1407241
https://e2e.ti.com/f/1/t/1380497
https://e2e.ti.com/f/1/t/1388994

I.e. some custom changes are required to the PWM resources and the TI Driver Team is aware of the improvements needed order to address these shortcomings.

Regards,
Ryan

0 Connor 1 month ago in reply to Ryan Brown1

TI__Prodigy 270 points

Hi Ryan,

That means it is only related to the software improvement?

If so, Is there any schedule to support on this?

BR,

Connor.

0 Ryan Brown1 1 month ago in reply to Connor

TI__Guru**** 208947 points

I apologize for the delay caused from the US Thanksgiving holiday.

These limitations are known internally, and bug tickets have been filed with the TI Drivers Team to address them in the future, however I do not have any concrete dates as to when they will be delivered with the F3 SDK. This is why I provided several other E2E threads which discuss the issues and provide feasible workarounds.

Regards,
Ryan

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CC2340R5: One LGPTimer with 2 different frequency PWM output?