Hi Cezary,
I am unable to reproduce your problem. I can read as few as 4 samples from a single channel and still receive valid data every time (I stopped after 1,000 successful and consecutive reads). My setup is: RHEL 4, NI-DAQmx Base 3.4, USB-6211 (which is Dev2), function generator for external clock, 100Hz - 50kHz TTL square wave. Try using my code below, which is modified from acquireNScans-ExtClk.c.
Joe Friedchicken| NI Configuration Based Software |
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Get with your fellow OS users
[ Linux ] [ macOS ] | Principal Software Engineer :: Configuration Based Software
Senior Software Engineer :: Multifunction Instruments Applications Group (until May 2018)
Software Engineer :: Measurements RLP Group (until Mar 2014)
Applications Engineer :: High Speed Product Group (until Sep 2008) |
