DAQ 1 sample (on demand) vs. continuous samples

[Sam.Pearson]

Hello,

I have a NI USB-6501 DAQ.  The device does not support acquiring continuous samples.  I need to continually poll the DAQ for signal changes.  I was thinking of putting the DAQ assist inside a loop, and just re-acquring 1 sample over and over.  Would this cause performance issues?  I'd like to run the loop about 1000 times per second.

[Dennis_Knutson · Accepted solution]

Refer to this benchmark. Your results could vary greatly and there could be large amounts of jitter.

p.s. You posted to the wrong board. You should have posted to the Digital I/O board.