Re: digital waveform output
- From: Nathan_R <x@xxxxxxxx>
- Date: Tue, 12 Feb 2008 18:40:05 -0600 (CST)
Hi andrikoscy,
With the VI you wrote it is only going to
output your waveform once. The digital output will be left at the last value in
the waveform. For example, if you end the waveform in a 1 then the line will stay
high. In order to see the waveform with your scope you can set the scope to do
a single acquisition on a rising edge trigger. Set the trigger level, start the
scope, and then run your VI. This should show you the two pulses in your
waveform.
For more examples of digital output I would
recommend looking at the digital generation examples in LabVIEW. These can be
found by going to the Help menu and selecting Find Examples.... Once the NI Example Finder is open select Hardware Input and
Output»DAQmx»Digital Generation. Also if
all you need to do is output a square wave I would recommend using a counter
output task assuming your card supports it. A good example of using a counter
to generate a square wave can be found in the NI Example Finder under Hardware Input and
Output»DAQmx»Generating Digital Pulses»Gen Dig Pulse Train-Continous.vi.
Thanks,
Nathan
.
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