TMS320F28069: TMS320F28069 CAP interrupt

Frankqu

Prodigy 230 points

Part Number: TMS320F28069
Other Parts Discussed in Thread: C2000WARE

Hi,TI Expert,

How to achieve edge-trigger( both rising edge and falling edge ) interrupt when coding TMS320F28069? Thanks.

over 7 years ago

0 Frank Ankapong over 7 years ago

TI__Mastermind 28275 points

Hi Frank,

You can use the F28069 ECAP capture example in C2000Ware as a starting point. To trigger interrupts on 2 events (captures), you will need to enable the event interrupt (ECEINT) for each of those events. For example, if you have the rising and falling edges setup as EVT1 and EVT2 respectively, you would write 1 to ECEINT.bit.CEVT1 and ECEINT.bit.CEVT2.

Furthermore, in your interrupt handler, you will need to clear the respective ECCLR.bit.CEVTx flag and the global flag, ECCLR.bit.INT in order to receive further interrupts from that ECAP.

0 Frank Ankapong over 7 years ago in reply to Frank Ankapong

TI__Mastermind 28275 points

Hi Frank,

Did the previous answer resolve your question?

0 Frank Ankapong over 7 years ago in reply to Frank Ankapong

TI__Mastermind 28275 points

Hi Frank,

It's been a few days since we heard from you so I'm going to assume your issue is resolved and will be marking this thread as resolved. If that is not the case, you can reply to this post or create a new post if this thread locks out due to inactivity.

0 Frankqu over 7 years ago in reply to Frank Ankapong

Prodigy 230 points

Hi Frank,
Please excuse my late reply,your suggestions are useful to customer and they have accepted it.

0 Frank Ankapong over 7 years ago in reply to Frankqu

TI__Mastermind 28275 points

No worries Frank. I'm glad to hear the suggestion worked for them. Let us know if you have any more questions.

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TMS320F28069: TMS320F28069 CAP interrupt