Hi All,
I'm trying to sample the Digital I/O port at 10 kHz and I seem to be unable to do so.
I have a DAQPad-6020E and I'm using DasyLab with the Traditional NI-DAQ v7.4.4 driver.
In the hardware setup dialog box, I have the AI clocked to the hardware clock running at
10 kHz. The Digital Input tab allows only software clock mode but I have two choices:
1) PC Clock (55ms) or 2) Analog Input. I assume option 2 somehow ties the sampling
to the analog input hardware clock but my testing doesn't bear this out.
I connect a function generator to both the analog input and the digital input and write the
sampled values to the a file. The file shows the AI properly sampling a 250 Hz signal
but the digital input is not.
Is there any way get a hardware clock based sampling of the digital I/O port?
Is my problem a limitation of the hardware, driver, software, or operator error?
Thanks in Advance.
John Wetzel