6. Design problem

In this case, I used System Generator produced by Xlinx. But you can use another tool for design verification.

And, you can use other FFT algorithm or other architecture (e.g. radix-4 butterfly, radix-8 butterfly etc...).

1. Level1: [128-point FFT]

2. Level2: [16,64, 128-point FFT] This should be implemented by only one circuit.