On Thu, Apr 15, 1999 at 03:30:47PM +0100, Si Owen wrote: > So reducing it to 20us (120 cycles) will bring it into line with what a real > SAM will do, and the adjustments to take the time to get to the interrupt > handler also needs to be taken into account.
Yes. Or thereabout. > So on a real SAM the interrupt handler could be called without a bit reset > in the status flags? Yes. But only on the second or subsequent of the multiple interrupts. The bit in the status flag goes away after about 100 cycles but interrupts can be re-triggered for up to about 20 cycles after that. imc
