about FIR BP filter design in CCS

Hi to all

I have been designing FIR  BP filter using following code in CCS 3.1

#include "bs2700.cof" //coefficient file

#include "dsk6713_aic23.h" //codec-dsk support file

Uint32 fs=DSK6713_AIC23_FREQ_8KHZ; //set sampling rate

int yn = 0; //initialize filter's output

short dly[N]; //delay samples

interrupt void c_int11() //ISR

{

short  i;

dly[0]=input_sample(); //input newest sample

yn = 0; //initialize filter's output

for (i = 0; i< N; i++)

yn += (h[i] * dly[i]); //y(n) += h(i)* x(n-i)

for (i = N-1; i > 0; i--) //starting @ end of buffer

dly[i] = dly[i-1]; //update delays with data move

output_sample(yn >> 15); //scale output filter sample

return;

}

void main()

{

comm_intr(); //init DSK, codec, McBSP

while(1); //infinite loop

}

//bs2700.cof FIR bandpass coefficients designed with MATLAB

#define N 89 //number of coefficients

short h[N]= {-14,23,-9,-6,0,8,16,-58,50,44,-147,119,67,-245,

200,72,-312,257,53,-299,239,20,-165,88,0,105,

-236,33,490,-740,158,932,-1380,392,1348,-2070,

724,1650,-2690,1104,1776,-3122,1458,1704,29491,

1704,1458,-3122,1776,1104,-2690,1650,724,-2070,

1348,392,-1380,932,158,-740,490,33,-236,105,0,

88,-165,20,239,-299,53,257,-312,72,200,-245,67,

119,-147,44,50,-58,16,8,0,-6,-9,23,-14};

but i m getting an compilation error..i,e.

fatal error :could not open source file "dsk6713_aic23.h"

please help asap..

thanking u in advance..