I'm looking for a simple FFT algorithm which will take in real one-dimensional arrays of size 2^n and output an array of frequency amplitudes. I am using a k64f board and a processor expert project through kinetis design studio.
Currently I have attempted to implement the algorithm found in here. The first half of the code works as written, but I have had issues getting the second half to work. I have also found FFTW and KISS FFT, but am unsure that either may be used with my choice of compiler.
Thank you for your help,