mymain.c

31阶滤波加抽取的DSP实现

#include <stdio.h>
#include "Coeff.h"
#define Nsize 32

short buffer[Nsize];
 
int MyFIR(short * ,const short *h, unsigned char *in,int index, int Len,int *out);

void main (void)
{
    int i;
    int index;
	unsigned char in[120];
    int out1[30];
//	int out2[30];
	for (i = 0; i < 30; i++)
	{
	    in[4*i] = 0xFF;
		in[4*i+1] = 0x88;
		in[4*i+2] = 0x23;
		in[4*i+3] = 0x01;
	}
/*	for (i = 30; i < 60; i++)
	{
	    in[4*i] = 0x23;
		in[4*i+1] = 0x01;
		in[4*i+2] = 0xFF;
		in[4*i+3] = 0x88;
	}*/
	for (i = 0; i < Nsize; i++)
	{
	    buffer[i] = 0;
	}

	index = 0;

	index = MyFIR(buffer,coeff,in,index,120,out1);
//	index = MyFIR(buffer,coeff,in+120,index,120,out2); 
}