Xilinx fft core simulation

Discussion in 'VHDL' started by Parvathi c, Sep 17, 2010.

  1. Parvathi c

    Parvathi c Guest

    Hi,

    I am trying to simulate fft of a sinewave of certain frequency with
    Modelsim.

    To simulate the fft code, first we have to find the Bin size. I have
    found that.

    Bin size = ( i/p freq*point fft)/sampling rate. (point fft = 1024)

    For a sine wave of i/p freq 10Hz, and Fs = 50Hz, bin size is 204.8.

    FFT of a sine wave is a delta at a frequency same as that of the input
    frequency. Now how do i view this in the simulator. Please guide me.

    thanks in advance.
    Parvathi.
     
    Parvathi c, Sep 17, 2010
    #1
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