Hello, i'm facing a problem with my ni device. I have a 3 ni6229 and some 6602 card. We have to mesure simultaneous frequency of 2 optical coder, then display them in time domain.
Signal to measure in range 0 to 10khz and change with frequency betwwen 20 and 100Hz. (like a sin waveform of 5Khz timebase, moving +- 512hz at 100hz).
It's very important to have common time measurement because we need to compare behaviour of one signal from the change in the first one.
I've tested some code (labview or nidaq C) (Measure Pulse Frequency - Buffered - External Clock - Arm Start) but i've error -200300 in labview (Invalid timing type for this channe, Property: SampTimingType Requested Value: Sample Clock
You Can Select: Implicit, On Demand).
How can i achieve this measurement
Regards