FFT Core v9.0 - Help Needed

Hello,

I am using the FFT IP from the Megawizard.

In order to check its working I am just simulating the FFT core in Quartus.

I have assigned a clock of 20ns, and assigned values to the input signals via the test bench (.vwf file).

I am testing for a 32 point FFT.

Also, for now, I have set the imaginary inputs to zero.

However, when I simulate, I am getting an all zero output, with the source_sop asserted for the entire time. Also, it gives a source_error = 1.

I am attaching my simulated output. Please have a look at the inputs given in it and what might be wrong in it.

Thnx

Pranjali.