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C6748 VPIF frame interrupt

Roger
Expert 1330 points

In raw data capture mode is there a way of generating an interrupt or a signal at the end of the frame? The documention indicates interrupts can be generated at the start of the frame, we need it at the end of the frame.

Roger

  • 0
    TI__Guru 62975 points

    Roger,

    You should be able to generate line-interrupts at programmable intervals using the C0CTRL[INTLINE] field.

    -Tommy

  • 0 in reply to tlee
    Expert 1330 points

    Tommy,

    It's an end of frame interrupt I need, not line interrupts.

    It seems I'll have to do this by connecting the frame sync to a GPIO pin & using the edge sensitive interrupt off that.

    Regards   ---   Roger

  • 0 in reply to Roger
    TI__Guru 62975 points

    Roger,

    Your solution works ok.  I was just thinking that with a known capture frame size, you can enable an interrupt anywhere within that frame by using line interrupts.

    -Tommy

  • 0 in reply to tlee
    Expert 1330 points

    Tommy,

    Ah yes you are right. I had assumed one interrupt per line, this would be tedious counting them all. I had not seen the number of lines before interrupt is programmable - I'll try it.

    Thanks   ---   Roger

  • 0 in reply to tlee
    Intellectual 615 points

    Hi,

    I have met some problems of c6748 vpif.Can you take some time to see my questions?The name of the thread is Question about c6748 vpif sample.

    Thnak you very much!

                                                                                 Wish