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PRD period problem (TMS320VC5416 DSK)

DSK x
Prodigy 30 points
Other Parts Discussed in Thread: TMS320VC5416

Hi,

I am using TMS320VC5416 DSK. I want to generate an interrupt one time after amount of millisecond. I tried to use different values of PRD but I found the Interrupt Period did not change when I run my code.

Here is my code:

Thank you,

  • 0
    TI__Mastermind 30365 points

    DSK x,

    Your timerIsr printf might be causing problems in your interrupts.

    Please try to put a global counter in the timerIsr routine and increment it every time it gets executed.

    Run it for 10 seconds (use a stop watch to check) or so and look for the value of the counter. Essentially you want to see how many times the ISR routine gets called in a certain span of time.

    Please ensure that your global variable is set to 0 at the beginning of your code and set to volatile.

    Lali