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Timer count edges and sync a output match without interrupt

delta-2000
Prodigy 220 points

Hello Forum,


I allready set up the Timer to count falling and raising edges at 17 MHz (there is room for two cpu cycles at 120 MHz). Now it would be fine to set a compare match output sync'ed to the 17 MHz signal... (Interrupt would be to slow!)

Is there any solution? (I allready checked the Datasheet... )


Thx for help


-Basti

  • 0
    TI__Guru**** 244400 points

    Hello Sebastian

    So when the number of edges are counted equal to the programmed value, you would want to have a GPIO toggled by the timer w/o CPU going to the interrupt handler and then toggling an output GPIO?

    If that is the case, then it is not possible directly. You may use DMA but it would also involve delay.

    Regards

    Amit

  • 0 in reply to Amit Ashara
    Prodigy 220 points

    Hello Amit,

    thx for your fast response.

    Okay, I tought as much.

    I have to use fast AC logic gates for my solution... I notice that sampling at TI issn't possible for this stuff :(

    But thats another story...

    Thanks for your great help!

    -Basti