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Looking for a C program to do FFT for PIC 16F877

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extradeath

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I need a fft for a pic

Hi friend,

I need a program in C capabale for pic 16f877 to do Fast Fourier Transform to be used in a Harmonic analyzer....


Please Help
 

Re: I need a fft for a pic

You'd be hardpressed to get the program compact enough for decent FFT in ASM, let alone C. Anyway, PicSpect is one of the most famous PIC FFT solutions. You may adapt it to your needs, but don't expect a wide bandwidth one.

http://techref.massmind.org/techref/microchip/fft/picspect.htm
 

Re: I need a fft for a pic

Have done some investigations/work in this area and its posible to do FFT in a pic, the example abow is great to get started but can be a bit hard to understand.

However its possible to get the calcualtions more efficiet than that. Im not that good at math but I found a page describing the theory for eficient fft in code. A bit hard to realy understand but easy to implement.

http://www.eptools.com/tn/T0001/INDEX.HTM

re Me
 

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