SFSK (Spread FSK) for myDAQ and labview

[ut perg]

Hello I want to give a simple demo on SFSK for PLC(Power line Communication) using NI myDAQ to students.

Can this be done? I also have a cRIO but I would rather use the myDAQ to generate SFSK modulation and demodulation.

[Drew_T]

ut perg,

To be honest, I am not too familiar with SFSK for PLC, but I would look at the following FSK example.  I ran it connected to a myDAQ, and it did not cause any errors.

http://decibel.ni.com/content/docs/DOC-6575

Drew T.

[ut perg]

Hi I found this example

http://decibel.ni.com/content/docs/DOC-12604

and was wondering if a similar demo can be done with FSK on  a myDAQ.

[ut perg]

I got the modulator(BFSK) to work.

Could you help with the demodulator part?

It's using the ASK demo refered above

[Scott_A]

Hi there,

Do you have the Modulation Toolkit for LabVIEW?

If not we may still be able to get this example up and running for you.

What changes have you made to that example so far?

[ut perg]

I can download the modulation toolkit from the university website

but I would like to try it without the toolkit since the myDAQ's HW performance is not as high as a PXI .

I modified the ASK example to have the frequency change for either a 0 or 1 bit stream on the modulator side which I uploaded on my previous post.

If you could help with the demodulator side it would be a great help for the students I'm trying to demonstrate to.

Also get them really motivated to use myDAQ in their studies. 

[ut perg]

Here is the modulator

[Scott_A]

I like what you've done with the modulator.

You may be able to use edge counting and compare the number of edges to a sample clock in order to demodulate, but I would recommend grabbing the toolkit for a couple reasons.

You can dive into the toolkit and see what explore those examples in order to build your own that won't require the toolkit.

It will save quite a bit of time inputting the logic required to get this going.

Even if you end up not using the toolkit, seeing how it operates within LabVIEW can be extremely helpful in building your own VI's.

[ut perg]

Ca

[ut perg]

I am trying to use the toolkit but can't get it to work.

Please help~~