Analog Loopback Test on Q8-USB DAQ - Tutorial
By default, the loopback demo is set for Q8 data acquisition boards. If you are using the Q8-USB DAQ device, the loopback demo needs to be re-set. Follow the steps below:
||Type "qc_show_demos" in the MATLAB command window and .
||Select the "QUARC Analog Loopback Demo”
||Click on “Open this model”:
||Double-click on the “HIL Initialize” block
||In the Board type scroll down menu, select "Q8-USB". Press "Apply" and then "OK".
||On your Q8-USB DAQ device, connect Analog Output # 0 to Analog Input # 0 as illustrated below:
||Click on the "Signal Generator" block and in the Source Block Parameter window, change the amplitude to 4, then open the Scope.
||Build and run the model. A sine wave should appear in the Scope window (see the picture in the previous step).