ni5640R FM/2-FSK Modulator

[Om]

Hi, 

Is there an example that can perform FM Modulation (or 2-FSK Modulation) using ni5640R FPGA?

The LV-FPGA RF Communications Library 2.0 has an FM Demodulator. I am looking for a similar VI that can perform FM Modulation. 

Thank you very much.

Ajay

[Om]

I have the Modulation Toolkit installed.

I am able to transmit modulated FM signals using the ni5640R driver VIs.

I am building an FM/2-FSK Transceiver.

I modified the FM demodulator example in the RF communications library and am using it to demodulate FM.

Upon receiving the appropriate response, I should transmit an FM modulated signal.

But it takes anywhere from 2 to 8 seconds to change from the FPGA mode to Driver mode after receiving the appropriate response which is not acceptable.

That is the reason I was looking for an FM modulator that I can use in the FPGA mode.

Thanks.

Ajay

[JerryAL]

This is not a perfect solution, but it may be enough to get you started on developing your own FM Modulator.

http://forums.ni.com/ni/board/message?board.id=ifrio&message.id=937#M937

Jerry

[Om]

Jerry,

The examples you suggested are for Labview 8.6.

I have Labview 8.5 installed.

Can you send me the same files saved for labview 8.5.

Thanks.

Ajay

[Om]

Jerry,

I am waiting for the examples.

Is there a promlem???

Thanks.

Ajay

[JerryAL]

Here is a LabVIEW 8.5.1 version, but it is broken in that there is a element of the code which does not match up with LabVIEW 8.5.  You can replace it with a LV 8.5 element of the same fixed point precision.

Jerry

[kami70b]

Hi i am new to labview fpga i want to know how can i get analog input to the fpga. do ineed to include only analog input port vi to do so what else i hav to do

[jaced]

Hi Kami70b,

Might I suggest that you consolodate your questions into a single new forum post, Spanning each piece of your issue accross forums that are at times three years old will more than likely not yeild the results you are hoping for. Based on your questions I suggest you investigate the shipping example for ni5640R found here: C:\Program Files\National Instruments\LabVIEW 2010\examples\instr\ni5640R\FPGA the version of LavVIEW in the file path will be dependent of which version you are currently using. I suggest looking at the Analog input and output example to begin with. Anything you believe would help us better understand your application and troubles would be a great addition to the new post.

[kami70b]

thanks for ur reply.

i just want to know what basics things i have to include. the example u r referring me to i have seen that but not able to grasp it fully. the two ADC config VI and DAC config VI on the top left of FPGA VI where does these ADC and DAC VI come from.

actually i have to present some work to my instructors in two weeks i know i want to learn everything too early by skipping some stages of learning but this is all because i have no time.

i would be very thankful if you tell me about basics things i have to include in my FPGA VI. plz mail me at kami70b@hotmail.com if possible

thanks

[jaced]

A great place to start would be the getting started guide which covers the basics of starting a project and compiling your first FPGA VI. More help is offered in the ni5640R help file all of which is located here C:\Program Files\National Instruments\NI-5640R. You may also find the RF communications library helpful http://decibel.ni.com/content/docs/DOC-4068