I've only got time now to outline some basic info; hopefully someone
will fill in the gaps. I'll mention a few terms and concepts that you
can find more info about either under the LabVIEW examples or here on
the website.
1. <b>RTSI:</b> This timing bus ("this set of wires") is built into
your PXI chassis so any DAQ boards you install are automatically
connected. If you use traditional NI-DAQ, you'll be programming RTSI
signals explicitly. Under NI-DAQmx, most if not all of that stuff is
done for you "under the hood."
2. <b>Sample Clock</b> and <b>Convert Clock:</b> You'll want to slave
these off of the timebase used by your high-speed digitizer to
guarantee that the sample times for your boards remain properly
synchronized. Note: under traditional NI-DAQ, these are called "Scan
Clock" and "Channel Clock."
Under DAQmx, these can be defined with the timing vi or the timing
property node.
Good luck with the app; rest assured that indeed you <b>can</b> get
there from here.
-Kevin P.
