2812fft源码.doc
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2812fft源码.doc

2812fft源码.doc

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#include<stdlib.h>#include"DSP28_Device.h"#include"string.h"#include"math.h"#include"DEC2812_DA.h"floatY=0;intk=0;intn=0;interruptvoidad(void);voidfft(void);voidda_run(intt);voidda_out(void);inti=0;floattemp1=0;floatp=3.1415926;floatZ=0;floatadata[400]={0};//{0.04,0.08,0.12,0.16,0.2,0.24,0.28,0.32,0.36,0.4,0.44,0.48,0.52,0.56,0.6,0.64,0.68,0.72,0.76,0.8,0.84,0.88,0.92,0.96,1,0.96,0.92,0.88,0.84,0.8,0.76,0.72,0.68,0.64,0.6,0.56,0.52,0.48,0.44,0.4,0.36,0.32,0.28,0.24,0.2,0.16,0.12,0.08,0.04,0,-0.04,-0.08,-0.12,-0.16,-0.2,-0.24,-0.28,-0.32,-0.36,-0.4,-0.44,-0.48,-0.52,-0.56,-0.6,-0.64,-0.68,-0.72,-0.76,-0.8,-0.84,-0.88,-0.92,-0.96,-1,-0.96,-0.92,-0.88,-0.84,-0.8,-0.76,-0.72,-0.68,-0.64,-0.6,-0.56,-0.52,-0.48,-0.44,-0.4,-0.36,-0.32,-0.28,-0.24,-0.2,-0.16,-0.12,-0.08,-0.04,0,0.04,0.08,0.12,0.16,0.2,0.24,0.28,0.32,0.36,0.4,0.44,0.48,0.52,0.56,0.6,0.64,0.68,0.72,0.76,0.8,0.84,0.88,0.92,0.96,1,0.96,0.92,0.88,0.84,0.8,0.76,0.72,0.68,0.64,0.6,0.56,0.52,0.48,0.44,0.4,0.36,0.32,0.28,0.24,0.2,0.16,0.12,0.08,0.04,0,-0.04,-0.08,-0.12,-0.16,-0.2,-0.24,-0.28,-0.32,-0.36,-0.4,-0.44,-0.48,-0.52,-0.56,-0.6,-0.64,-0.68,-0.72,-0.76,-0.8,-0.84,-0.88,-0.92,-0.96,-1,-0.96,-0.92,-0.88,-0.84,-0.8,-0.76,-0.72,-0.68,-0.64,-0.6,-0.56,-0.52,-0.48,-0.44,-0.4,-0.36,-0.32,-0.28,-0.24,-0.2,-0.16,-0.12,-0.08,-0.04,0,0.04,0.08,0.12,0.16,0.2,0.24,0.28,0.32,0.36,0.4,0.44,0.48,0.52,0.56,0.6,0.64,0.68,0.72,0.76,0.8,0.84,0.88,0.92,0.96,1,0.96,0.92,0.88,0.84,0.8,0.76,0.72,0.68,0.64,0.6,0.56,0.52,0.48,0.44,0.4,0.36,0.32,0.28,0.24,0.2,0.16,0.12,0.08,0.04,0,-0.04,-0.08,-0.12,-0.16,-0.2,-0.24,-0.28,-0.32,-0.36,-0.4,-0.44,-0.48,-0.52,-0.56,-0.6,-0.64,-0.68,-0.72,-0.76,-0.8,-0.84,-0.88,-0.92,-0.96,-1,-0.96,-0.92,-0.88,-0.84,-0.8,-0.76,-0.72,-0.68,-0.64,-0.6,-0.56,-0.52,-0.48,-0.44,-0.4,-0.36,-0.32,-0.28,-0.24,-0.2,-0.16,-0.12,-0.08,-0.04,0,0.04,0.08,0.12,0.16,0.2,0.24,0.28,0.32,0.36,0.4,0.44,0.48,0.52,0.56,0.6,0.64,0.68,0.72,0.76,0.8,0.84,0.88,0.92,0.96,1,0.96,0.92,0.88,0.84,0.8,0.76,0.72,0.