Using FFT C28X Library with eZdsp f2812 on real data

Hi

I want to do a 1024 point FFT of input data using the TI C28X FFT library.
I am new to this library. I am sure someone on this group must have used it
on input data in real time using eZdsp f2812. I believe ipcb buffer stores
the results. I wanted to know what part of the code i need to modify to
make the library (fft1024r/c) compute the FFT of my input data?