FFT变换的VHDL实现

应用背景利用VHDL实现FFT变换，FFT在FPGA中用处比较多，可以帮助大家很好认识FFT变换之后频谱。。。关键技术VHDL实现FFT变换, 旋转因子是FFT实现的难点和重点。。。。。。。。。。。。。。。。。。。

FFT 高速傅立叶变换的VHDL源代码 可以综合
and_gates.vhd
baseindex.vhd
but.vhd
butter_lib.vhd
comm.txt
control2.vhd
controller.vhd
counter.vhd
cycles_but.vhd
dff.vhd
divide.vhd
FLOAT2.PIF
FLOAT_RE.TXT
IEEE_TO_.PIF
ioadd.vhd
iod_staged.vhd
lblock.vhd
mult.vhd
multiply.vhd
mux_add.vhd
mux_but.vhd
negate.vhd
normalize.vhd
out_result.vhd
print.vhd
ram.vhd
ram_shift.vhd
rblock.vhd
result.txt
rom.vhd
romadd_gen.vhd
rom_ram.vhd
shift2.vhd
simili.lst
stage.vhd
subtractor.vhd
summer.vhd
swap.vhd
synth_main.vhd
synth_test.vhd