Fixed point FFT in C

I am looking for an efficient fixed point FFT in C. Does someone know an 
implementation on PIC18 (I know that PIC18 is not a DSP but this 
question is in the frame of a feasibility study with high constraints on 
costs) ?

Thanks,

EMe.

microchips website has appnotes describing dsp routines like FFT/IFFT,
IIR,FIR for pic i dont know which
series...but it should work on pic 18 as it is still a single accumulator
design.
For C implimentations there are plenty on the web...
Hope that helps.

"Eric Meurville" <eric.meurville@epfl.ch> wrote in message
news:3f7c13a1$1@epflnews.epfl.ch...
> I am looking for an efficient fixed point FFT in C. Does someone know an
> implementation on PIC18 (I know that PIC18 is not a DSP but this
> question is in the frame of a feasibility study with high constraints on
> costs) ?
>
> Thanks,
>
> EMe.
>