2005-01-21 03:05 PM
How to make a periodic interrupt precise
2005-01-21 03:05 PM
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?