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xuyinghui810
Visitor II
January 21, 2005
Question

How to make a periodic interrupt precise

  • January 21, 2005
  • 1 reply
  • 601 views
Posted on January 22, 2005 at 00:05

How to make a periodic interrupt precise

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    xuyinghui810Author
    Visitor II
    January 21, 2005
    Posted on January 22, 2005 at 00:05

    In my timer interrupt, I update DAC through ext. bus. I want to ensure that DAC update interval is precisely identical, but interrupt latence is affected by many factors.

    How to make the interrupt latence is identical between two timer interrupts?

    I make CPU enter IDLE state after timer interrupt subroutine and make CPU remain IDLE before timer interrupt request. Is this feasible?

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