RS-422 PPS Generation in LabWindows/CVI

[jmk75]

I'm trying to generate a RS-422 PPS signal using the PXI-8431/8 PXI board, LabWindows/CVI and the standard CVI library functions but I can't find a way of producing a signal that remains HI persistently for X number of ms.  I realize that using the PXI-6602 would be an ideal solution but for my case I'm relying on the RT OS to maintain determinism.  Do you know of a white paper or discussion thread that might describe a reliable way of doing this with the CVI functions and serial boards I have?

[RavensFan]

What is a "PPS signal"?

Since you are asking about LabWindows/CVI, you might have better luck asking your question in the LabWindows forum rather than the LabVIEW forum.

[jmk75]

PPS -> Pulse Per Second

Basically a periodic square wave of ~100ms duration.

I didn't realize this was the LabView forum.  Thanks for the tip.