fir.h

基于TMS320VC5509的的FIR滤波

#include <math.h>
#include "tms320.h"
#include "dsplib.h"

#define NX 320
#define NH 64
#pragma DATA_SECTION(h,".coeffs")
DATA h[NH]=
{
     0,
    76,
   159,
    87,
   -12,
   105,
   283,
   140,
  -130,
    51,
   414,
    98,
  -557,
  -324,
   368,
  -198,
 -1525,
 -1258,
    59,
  -749,
 -3142,
 -2850,
  -283,
 -1173,
 -5427,
 -5200,
   256,
  -154,
 -9453,
-10758,
  8889,
 32767,
 32767,
  8889,
-10758,
 -9453,
  -154,
   256,
 -5200,
 -5427,
 -1173,
  -283,
 -2850,
 -3142,
  -749,
    59,
 -1258,
 -1525,
  -198,
   368,
  -324,
  -557,
    98,
   414,
    51,
  -130,
   140,
   283,
   105,
   -12,
    87,
   159,
    76,
     0 
 };

#pragma DATA_SECTION(db,".dbuffer")
DATA db[NH+2] ;

#pragma DATA_SECTION(x,".dbuffer")
#pragma DATA_SECTION(r,".dbuffer")
DATA x[NX],r[NX],out[NX];