2012/2/7 Paul Brook <p...@codesourcery.com> > > Implemented cadence Triple Timer Counter (TCC) > > It looks like you're implementing a periodic timer as sequence of chained > oneshot timers. This is a bad idea. In qemu interrupt latency may be > high, > so you're likely to suffer from significant time skew. > > Ok, I could implemented the wraparound event as a periodic timer and the match events are kicked off as seperate one-shot timers when the wrap around occurs? There would still be a small delay on match events, but it would get rid of the integration effect of lots of little delays (over many wrap arounds) add up to a significant skew.
> Paul >
