4096-FFT-FPGA

[Harishkanmani]

Can any one explain me the concept of implementing FFT in labview FPGA.

I understood the basic concept of FFT

But I have no idea how to implement it without using inbuilt FFT

Can anyone share the logic? 

[Terry_ALE]

Right-click on the FFT (when on the block diagram) and select "Convert to subVI"

Are you looking to change the FFT functionality to do something different?

[Harishkanmani]

That's an inbuilt function

I need to develope on own for practice purpose

[altenbach · Accepted solution]

It is unlikely that you can beat the built-in IP, but from the size restrictions, they most likely use the Cooley-Tukey Radix-2 algorithm. (or higher radix).

altenbach_0-1685381064216.png

There are plenty of references, for example start reading here.

Hardware implementations of FFT have been around for over 50 years. Here's another good reference.

Good luck. Seems like a nice exercise, but be careful about picking suitable datatypes and structures.

[Harishkanmani]

Can you help me in understanding this logic 

Still I can't able to understand