Hei,
I have a USB-6221 board which I would like to use for generating sine signals (within 600-6kHz) range. The problem is that when I use one of the shipping examples (Cont Gen Voltage Wfm-Int Clk) and set the vi parameters to (for instance) 1kHz Desired Frequency, 250 samples per Buffer and 5 Cycles Per Buffer. I get the following error:
"Error -200018 occurred at Property Node DAQmx Task (arg 1) in DAQmx Is Task Done.vi:1->Cont Gen Voltage Wfm-Int Clk.vi. Measurements: DAC conversion attempted before data to be converted was available."
Now I wonder, why am I getting this error, since this parameters are well below the maximum specifications of the 6221?
P.S Reducing the number of samples and increasing the number of cycles does help, but the waveform has nothing in common with a sine (looks more like a PAM signal).
