TMS320F280049: Regisiter questions for EPWM module

Akihiko Fujinaka

Part Number: TMS320F280049

Hello expert.

I received several questions from our customer for EPWM module registers.

1. In EPWM module, if DCAEVT1 happened in case the different value setting between TZA field and DCAEVT1 field in TZCTL register,

which setting is effective? ( same as TZCTL2)

2. There are no description for EDGESTATUS,EDGEMODE,EDGEFILTSEL fieled in DCFCTLregister.

Can you please describe the meaning for those value?

3. In DCFWINDOW register, this register field size is 16 bit but the description is 01 to FF. WhIch is correct?

Regards,

A.Fujinaka

over 6 years ago

0 Nima Eskandari over 6 years ago

TI__Guru 52040 points

Fajinaka,

I understood all questions except 1. Can you try explaining your question again?

2/3 I will post the answers to.

Nima

0 Akihiko Fujinaka over 6 years ago in reply to Nima Eskandari

TI__Expert 3505 points

Hello Nima,

Thanks for your reply.

Their questions was , which setting will be priooritized when the action is conflicted b/w TZA and DEAEVT1,
but I found it is defined in page1723 in SPRUI33B.pdf document.

The priority of conflicting actions on the TZCTL, TZCTL2, TZCTLDCA and TZCTLDCB registers is as
follows

(highest priority overrides lower priority):
Output EPWMxA:
– TZA (highest) -> DCAEVT1 -> DCAEVT2 (lowest)
– TZAU (highest) -> DCAEVT1U -> DCAEVT2U (lowest)
– TZAD (highest) -> DCAEVT1D -> DCAEVT2D (lowest)

So, please ignore my quesion #1.

Regards,
A.Fujinaka

0 Nima Eskandari over 6 years ago in reply to Akihiko Fujinaka

TI__Guru 52040 points

Answers:

DCFWINDOW:

Is a 16 bit value.

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TMS320F280049: Regisiter questions for EPWM module