Simple FFT operation

Hi all,

I have a time domain signal and want to do an FFT to it and compare the converted value with a frequency domain signal.

Please suggest me ways do it.

I tried the FFT megacore function but i find it complex with all those sop, eop and other signals.

Suggest me a simple way by which i can have the whole of the time domain signal converted and stored in some location and then compare it with the frequency signal.

The length of the time domain signal be 1024.

Thanks
Nadeem