Parth Chandak / Mbed 2 deprecated fftSineWaveV2

Code has problems. Refer to this repo: https://os.mbed.com/users/igorsk/code/FFT/

Dependencies:   mbed

main.cpp@0:be659bc4df49, 2017-12-05 (annotated)

Committer:
parthchandak02
Date:
Tue Dec 05 08:11:10 2017 +0000
Revision:
0:be659bc4df49
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
parthchandak02 0:be659bc4df49 1 #include "mbed.h"
parthchandak02 0:be659bc4df49 2 #include <SerialBase.h>
parthchandak02 0:be659bc4df49 3
parthchandak02 0:be659bc4df49 4 Timer timer_slow;
parthchandak02 0:be659bc4df49 5 Timer timer_med;
parthchandak02 0:be659bc4df49 6 Timer timer_fast;
parthchandak02 0:be659bc4df49 7
parthchandak02 0:be659bc4df49 8 Serial pc(USBTX, USBRX); // tx, rx
parthchandak02 0:be659bc4df49 9
parthchandak02 0:be659bc4df49 10 AnalogOut aout(p18);
parthchandak02 0:be659bc4df49 11
parthchandak02 0:be659bc4df49 12 void fftR4(short *y, short *x, int N);
parthchandak02 0:be659bc4df49 13
parthchandak02 0:be659bc4df49 14 short x[512]; // input data 16 bit, 4 byte aligned x0r,x0i,x1r,x1i,....
parthchandak02 0:be659bc4df49 15 short y[512]; // output data 16 bit,4 byte aligned y0r,y0i,y1r,y1i,....
parthchandak02 0:be659bc4df49 16 short z[512]; // same format...
parthchandak02 0:be659bc4df49 17
parthchandak02 0:be659bc4df49 18 int main()
parthchandak02 0:be659bc4df49 19 {
parthchandak02 0:be659bc4df49 20 for (i=0;i<512;i++)
parthchandak02 0:be659bc4df49 21 {
parthchandak02 0:be659bc4df49 22 x[i]=0;
parthchandak02 0:be659bc4df49 23 }
parthchandak02 0:be659bc4df49 24 for (i=0;i<512;i=i+8)
parthchandak02 0:be659bc4df49 25 {
parthchandak02 0:be659bc4df49 26 x[i+0]=16384;
parthchandak02 0:be659bc4df49 27 x[i+2]=16384;
parthchandak02 0:be659bc4df49 28 x[i+4]=-16384;
parthchandak02 0:be659bc4df49 29 x[i+6]=-16384;
parthchandak02 0:be659bc4df49 30 }
parthchandak02 0:be659bc4df49 31
parthchandak02 0:be659bc4df49 32 fftR4(y, x, 256);
parthchandak02 0:be659bc4df49 33 }