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Digital output daq 6008

Hello,

 

I want to control the switching on and off of an LED with a digital output, and this by generating a rectangular signal in this output to control the duration of the high state and the low state and the period.

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And what is your exact question? As you have probably seen from the other posts on this subject, the dio is software timed so you can only write true/false values to the DAQmx Write with wait statements to control the duration.
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As noted above you can only do software timed Digital Output with USB-6008. Frequency and control of digital output is done based on your call of DAQmx Write vi.

 

Here is similar forum with lot of info

 

https://forums.ni.com/t5/Digital-I-O/How-to-make-a-USB-6009-digital-output-blink-on-off-go-high-low-...

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