02-18-2009 11:30 AM
I need to do buffered gated event counting. I was hoping to buffer counts with a pulse train that acts as both a sampling clock and an active low pause trigger. However when I try this I get an error -200145 "Measurements: Pause trigger is only valid for event counting if sample clock is not used". I am able to do unbuffered gated counting but I prefer to be able to display a graph where each data point is the number of events collected during each high gate.
I am working in LV 7.1 with NIDAQMX 8.7.1
Here is my test vi. In the second frame there is a constant for a case statement that switches 1 sample and N samples. I am using a an external function generator to create the pulses I count. The final version will count pulses from a PMT.
02-19-2009 04:03 PM