Now my question is how stable the latency is ? Is it 100ms +/- 1ms or 100ms +/-10ms ?
My need is to output a 200Hz signal synchronous to a reference 200Hz external independant signal. So I need to control the latency the best as I can.
Rob Purser wrote: > Hi Eric: > > I've enclosed my standard response on "real time" below. Depending on the > tecnique you choose, you could achieve a fairly reasonable level of > accuracy. I'm not sure where you're getting your time reference from, so > that would be a large source of latency. It's pretty straightforward to > create a timer in MATLAB to check the time on a regular basis -- the rate at > which you check the time would likely be the largest source of latency. If > you use a manual trigger to output your analog output signal, latency would > probably be well under 100ms. > > -Rob >