代码搜索：如何学习 Fir？
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wks fir.wks
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pjt fir.pjt
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectDir="C:\ICETEK-VC5509-EDULab2.2\Lab0501-FIR\"
ProjectType=Executable
CPUFamily=TMS320C55XX
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c fir.c
#include "myapp.h"
#include "ICETEK-VC5509-EDU.h"
#include "scancode.h"
#include
#define FIRNUMBER 25
#define SIGNAL1F 1000
#define SIGNAL2F 4500
#define SAMPLEF 10000
#define PI 3
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h fir.h
/*
* SpanDSP - a series of DSP components for telephony
*
* fir.h - General telephony FIR routines
*
* Written by Steve Underwood
*
* Copyright (C) 2002 Steve Underwood
*
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c fir.c
/////////////////////////////////////////////////
// Example For ICETEK-VC5416-EDU //
// CTR Version : V4 //
// Filename: Fir.c
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fig fir.fig
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asv fir.asv
wc=0.25*pi;N=33;
alpha=(N-1)/2;
n=0:1:N-1;
m=n-alpha+eps;
hd=sin(wc*m)./(pi*m);
wd2=hanning(N)';b2=hd.*wd2;
[H2,w]=freqz(b2,1);
subplot(2,2,1)
plot(w,abs(H2),'-.g')
legend('升余弦窗低通滤波器')
subpl
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m fir.m
wc=0.25*pi;N=33;
alpha=(N-1)/2;
n=0:1:N-1;
m=n-alpha+eps;
hd=sin(wc*m)./(pi*m);
wd2=hanning(N)';b2=hd.*wd2;
[H2,w]=freqz(b2,1);
subplot(2,2,1)
plot(w,abs(H2),'-.g')
legend('升余弦窗低通滤波器')
subpl
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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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