Why are there at - it such a delay, write and read a PWM signal to digital input?

Hello!  I am trying to read and take action on a PWM signal.  The equiptment I'll have access to: 9201, 9425 and cDAQ-9172 chassis of NOR.

That's kind of what I'm experimenting with now (I have tested with a device USB 6211).  Someone at - it a better idea how to do that?

The problems that I encounter:

(1) it seems there be then buffering of questions?

(2) it takes too long.

My vi is attached.

Thanks in advance for any help you can give.

Also, in my final application, I will not have to create the PWM signal - this is just to test the acquisition currently.

Try to use functions DAQmx directly rather than the DAQ Assistant.  They are a little more work to learn but are more effective.  Your 6211 can generate a PWM signal in hardware, so use it (see examples of LabVIEW).  Finally, of course there will be some delay in your code.  You read to 1.5 k samples to 1 k/second, so each loop cycle will be 1.5 s.

EDIT: also, why you write 1 k samples and then read 1.5 k, both 1 k per second?  This means that your output will not generate any signal for long periods of time...

Tags: NI Software

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