代码搜索：如何学习 Fir？
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c fir.c
//Fir.c FIR filter. Include coefficient file with length N
#include "bs2700.cof" //coefficient file BS @ 2700Hz
int yn = 0; //initialize filter's output
short dly[N];
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v fir.v
module fir(clk,x,y);
input[7:0] x;
input clk;
output[15:0] y;
reg[15:0] y;
reg[7:0] tap0,tap1,tap2,tap3,tap4,tap5,tap6,tap7,tap8,tap9,tap10;
reg[7:0] t0,t1,t2,t3,t4,t5;
reg[15:0] sum;
always
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vhdl fir.vhdl
-- $Id: fir.vhdl,v 1.1.1.1 2005/01/04 02:05:58 arif_endro Exp $
-------------------------------------------------------------------------------
-- Title : FIR Low pass filter
-- Project : FM
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c fir.c
#include "tms320.h"
#include "dsplib.h"
#include "math.h"
#include "test.h"
short i;
DATA *dbptr=&db[0];
void main()
{
for(i=0;i
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asm fir.asm
;***********************************************************
; Version 2.10.02
;***********************************************************
; Function:
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v fir.v
`timescale 1ns / 1ps
////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 17:01:38 10/09/06
// Design Name:
// Mo
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vhd fir.vhd
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_signed.all;
use ieee.std_logic_arith.all;
use work.pack.all;
use work.components_pack.all;
entity FIR is
port (
c
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m fir.m
%
% FIR filter design using Hamming window
%
ORD1=511;
F=8000;
N=128;
x=(0:127)/256*F;
% Nth order Lowpass
f1=1200;
Wn=f1/F*2;
blp=fir1(ORD1,Wn);
BLP=blp*32767;
m=freqz(blp,1,N);
plot(x
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h fir.h
/*
* Copyright 2003 by Texas Instruments Incorporated.
* All rights reserved. Property of Texas Instruments Incorporated.
* Restricted rights to use, duplicate or disclose this code are
*