test.c

DSP原理实验源代码付详细实验指导书

#include        "c54fft.h"
#pragma DATA_SECTION (x,".x")
DATA x[256];

#pragma DATA_SECTION (r,".r")
DATA r[256];

void    main()
{                                       
         cbrev( x, x, 256/2);           /* 求倒序original call format    */
         rfft256( x, 1);                /* FFT */
         rifft256( x, 0);               /* 反FFT　cbrev function included */
         for(;;){}
}