TMS320F280039C: EPWM AQCSFRC configuration

Johnny Chen

Tool/software:

Hi Champ,

I am asking for my customer.

(1). Having EPWM force low IMMEDIATELT in sw when the AQCSFRC applies, the AQ should be in the immediate mode by configuring the RLDCSF in AQSFRC register to load immediately, right ?

(2). Continue #1, having EPWM to force low IMMEDIATELT when the AQCSFRC applies, and also having TBCTR to be reset to 0. Is it doable ? If yes, would the expert kindly explicitly show how ?

Thanks and regards,

Johnny

11 months ago

0 Johnny Chen 11 months ago

TI__Expert 5260 points

Hi Champ,

Any chance to have some input here ? Need timely support to confirm the correct way to force the EPWM low immediately in sw.

Thanks and regards,

Johnny

0 Stevan Duraskovic 11 months ago in reply to Johnny Chen

TI__Expert 7160 points

Hello Johny,

I will take a look and reply by end of the week.

0 Johnny Chen 11 months ago in reply to Stevan Duraskovic

TI__Expert 5260 points

Hi Stevan,

Any chance to get back with you for the answer by today ?

Thanks for the support.

0 Johnny Chen 11 months ago in reply to Johnny Chen

TI__Expert 5260 points

Hi Stevan,

It’s been some time since our last correspondence. Do you have any update ?

Thanks.

0 Stevan Duraskovic 11 months ago in reply to Johnny Chen

TI__Expert 7160 points

Hello Johny,

1. Correct, you need to set RLDCSF to 11: Load immediately (the active register is directly accessed by the CPU and is not loaded from the shadow register).

2. I don't think it is possible to do that. I assume you want to load on tbctr = zero, then you should just use shadow load mode

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TMS320F280039C: EPWM AQCSFRC configuration