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Speaker 的代码
“梁祝”乐曲演奏电路.txt
“梁祝”乐曲演奏电路
//信号定义与说明：
//clk_4Hz： 用于控制音长（节拍）的时钟频率；
//clk_6MHz： 用于产生各种音阶频率的基准频率；
//<mark>speaker</mark>： 用于激励扬声器的输出信号，本例中为方波信号；
//high, med, low：分别用于显示高音、中音和低音音符，各驱动一个数码管来显示。
module song(clk_6MHz,clk_4Hz,speak ...
song.v
module song(clk_6MHz,clk_4Hz,speaker,high,med,low);
input clk_6MHz, clk_4Hz;
output speaker;
output[3:0] high,med,low;
reg[3:0] high,med,low;
reg[13:0] divider,origin;
reg[7:0] counter;
reg spe
chap0703.xml
The Tragedy of Romeo and Juliet
Text placed in the public domain by Moby Lexical Tools, 1992.
SGML markup by Jon Bosak
蜂鸣器 响.lst
C51 COMPILER V7.50 蜂胈芲_响 02/17/2009 15:31:27 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE 蜂胈芲_响
OBJECT MODULE PLACED IN 蜂鸣器 响
speaker.c
#include < fcntl.h >
#include < stdio.h >
#include < stdlib.h >
#include < string.h >
#include < unistd.h >
#include < sys/ioctl.h >
#include < sys/types.h >
#include < linux/kd.h >
/* 设定默认值
abstract.txt
The Audio project is a demo program for the Keil MCB2300
Board using the NXP LPC23xx Microcontroller.
It demonstrates an USB Audio Device - Speaker.
The USB Audio Device is recognized by the ho
speaker.c
/*
Play sound buffer
*/
#include "netfone.h"
/* GSMDECOMP -- Uncompress the contents of a sound buffer using GSM. */
static void gsmdecomp(LPCLIENT_DATA pClientData, soundbuf *sb)
song.v
module song(clk_6MHz,clk_4Hz,speaker,high,med,low);
input clk_6MHz, clk_4Hz;
output speaker;
output[3:0] high,med,low;
reg[3:0] high,med,low;
reg[13:0] divider,origin;
reg[7:0] counter;
reg spe
dac_codec.h
/*----------------------------------------------------------------------------
* Name: DAC_CODEC.h
* Purpose: Header file of speaker driver using DAC
* Version: V1.00
*--------------------
dac_codec.c
/*----------------------------------------------------------------------------
* Name: DAC_CODEC.c
* Purpose: Speaker driver using DAC
* Version: V1.00
*-----------------------------------