I Use This FFT in my project, and I find a bug. When FFT size is bigger than 1000(for example), the number set to xilinx core generator has the format like 1,000 , and this can not be recognized by core generator and report error(actually should be 1000). So I have to manually generate the myfft_twiddle_rom0.ngc file. Hope to solve this,Thanks!
fast download and works, recommended.
very good program belfft.