Using PCI-6534 to generate digital control signal

[timpan1990]

Hi, Everyone 

I've used PCI-6534 as a digital signal generator.

The attached file is  the VI I use. I use DAQmx digital output function to generate the signal I need. 

However, when I was using oscilloscope, the probed output signal remained high (about 5V). (I ran the VI file continuously during probing.)

The output signals didn't toggle the way I just programmed.

 Thanks!

[altenbach]

Try to learn about while loops. The "continuous run" button is a debugging tool, not a way to run a VI.

The "data" in your attached VI is an empty array. It helps to define reasonable default values for all controls before saving and attaching. Is there anything interesting showing in the error indicator?

[timpan1990]

Thank you for your suggestion! I update a new VI with while loop and default value. This time it shows error -200293. 

And I try to debug this error with running VI under "Highlight execution". At the beginning, it doesn't show any error, but after a period of time, error 

occurs. I guess that's because time is out? But anyway, PCI-6534 still keeps logic high...