51单片机用蜂鸣器演奏卡农

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51单片机蜂鸣器播放音乐代码

/*生日快乐歌曲*/#include <>#define uint unsigned int#define uchar unsigned charsbit beep = P1^5;uchar code SONG_TONE[]={212,212,190,212,159,169,212,212,190,212,142,159, 212,212,106,126,159,169,190,119,119,126,159,142,159,0};uchar code SONG_LONG[]={9,3,12,12,12,24,9,3,12,12,12,24,9,3,12,12,12,12,12,9,3,12,12,12,24,0};//延时void DelayMS(uint x){uchar t;while(x--) for(t=0;t<120;t++);}void PlayMusic(){uint i=0,j,k;while(SONG_LONG[i]!=0||SONG_TONE[i]!=0){ //播放各个音符，SONG_LONG 为拍子长度for(j=0;j<SONG_LONG[i]*20;j++){beep=~beep;//SONG_TONE 延时表决定了每个音符的频率for(k=0;k<SONG_TONE[i]/3;k++);}DelayMS(10);i++;}}void main(){beep=0;while(1){PlayMusic(); //播放生日快乐DelayMS(500); //播放完后暂停一段时间}}两只蝴蝶：#include <> // 这是单片机音乐代码生成器生成的代码#define uchar unsigned charsbit beepIO=P1^5; // 输出为可以修改成其它 IO 口uchar m,n;uchar code T[49][2]={{0,0},{0xF8,0x8B},{0xF8,0xF2},{0xF9,0x5B},{0xF9,0xB7},{0xFA,0x14},{0xFA,0x66},{0xFA,0 xB9},{0xFB,0x03},{0xFB,0x4A},{0xFB,0x8F},{0xFB,0xCF},{0xFC,0x0B},{0xFC,0x43},{0xFC,0x78},{0xFC,0xAB},{0xFC,0xDB},{0xFD,0x08},{0xFD,0x33},{0xFD,0 x5B},{0xFD,0x81},{0xFD,0xA5},{0xFD,0xC7},{0xFD,0xE7},{0xFE,0x05},{0xFE,0x21},{0xFE,0x3C},{0xFE,0x55},{0xFE,0x6D},{0xFE,0x84},{0xFE,0x99},{0xFE,0 xAD},{0xFE,0xC0},{0xFE,0x02},{0xFE,0xE3},{0xFE,0xF3},{0xFF,0x02},{0xFF,0x10},{0xFF,0x1D},{0xFF,0x2A},{0xFF,0x36},{0xFF,0x42},{0xFF,0x4C},{0xFF,0 x56},{0xFF,0x60},{0xFF,0x69},{0xFF,0x71},{0xFF,0x79},{0xFF,0x81}};uchar code music[][2]={{0,4},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8}, {21,4},{23,4},{21,4},{19,4},{16,4},{19,4},{14,24},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,24},{16,4},{19,4},{21,8}, {21,4},{23,4},{21,4},{19,4},{16,4},{19,4},{21,24},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8}, {21,4},{23,4},{21,4},{19,4},{16,4},{19,4},{14,24},{23,4},{26,4},{26,16},{26,4},{28,4},{26,4},{23,24},{21,4},{23,4},{21,8},{21,4}, {23,4},{21,4},{19,4},{16,4},{16,2},{19,2},{19,24},{0,20},{26,4},{26,4},{28,4},{31,4},{30,4},{30,4},{28,4},{23,4},{21,4},{21,4},{23,16},{ 0,4},{23,4},{23,4},{26,4},{28,8},{28,12},{16,4},{23,4},{21,4},{21,24},{23,4},{26,4},{26,4},{23,4},{26,8},{0,4},{31,8},{30,4},{28,4},{30,4},{2 3,8},{0,4},{28,4},{28,4},{30,4},{28,4},{26,4},{23,4},{21,8},{23,4},{21,4},{23,4 },{26,16},{0xFF,0xFF}};void delay(uchar p){uchar i,j;for(;p>0;p--)for(i=181;i>0;i--)for(j=181;j>0;j--);}void pause(){uchar i,j;for(i=150;i>0;i--)for(j=150;j>0;j--);}void T0_int() interrupt 1{beepIO=!beepIO;TH0=T[m][0]; TL0=T[m][1];}void main()uchar i=0;TMOD=0x01; EA=1; ET0=1;while(1){m=music[i][0];n=music[i][1];if(m==0x00){TR0=0;delay(n);i++;}else if(m==0xFF){TR0=0;delay(30);i=0;}else if(m==music[i+1][0]){TR0=1;delay(n);TR0=0;pause();i++;}else{TR0=1;delay(n);i++;}}}祝你平安：#include ""unsigned char Count;sbit _Speak =P1^5 ;unsigned char code SONG[] ={ //祝你平安0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x10,0x20,0x10,0x20,0x80,0x26,0x20,0x30,0x20 ,0x30,0x20,0x39,0x10,0x30,0x10,0x30,0x80,0x26,0x20,0x20,0x20,0x20,0x20,0x1c,0x20 ,0x20,0x80,0x2b,0x20,0x26,0x20,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x80,0x26,0x20 ,0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x60,0x40,0x10,0x39,0x10,0x26,0x20 ,0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x80,0x26,0x20,0x2b,0x10,0x2b,0x10 ,0x2b,0x20,0x30,0x10,0x39,0x10,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x20 ,0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x18,0x20,0x18,0x20,0x26,0x20 ,0x20,0x20,0x20,0x40,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x1c,0x20,0x20,0x20 ,0x20,0x80,0x1c,0x20,0x1c,0x20,0x1c,0x20,0x30,0x20,0x30,0x60,0x39,0x10,0x30,0x10 ,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x10,0x26,0x10,0x26,0x10,0x2b,0x10,0x2b,0x80 ,0x18,0x20,0x18,0x20,0x26,0x20,0x20,0x20,0x20,0x60,0x26,0x10,0x2b,0x20,0x30,0x20 ,0x30,0x20,0x1c,0x20,0x20,0x20,0x20,0x80,0x26,0x20,0x30,0x10,0x30,0x10,0x30,0x200x39,0x20,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x10,0x40,0x10,0x20,0x10 ,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x00};void Time0_Init(){TMOD = 0x01;IE = 0x82;TH0 = 0xD8;TL0 = 0xEF; //12MZ晶振，10ms}void Time0_Int() interrupt 1{TH0 = 0xD8;TL0 = 0xEF;Count++; //长度加1}/*-------------------------------------------------功能:1MS延时子程序-------------------------------------------------*/void Delay_xMs(unsigned int x){unsigned int i,j;for( i =0;i < x;i++ ){for( j =0;j<3;j++ );}}void Play_Song(unsigned char i){unsigned char Temp1,Temp2;unsigned int Addr;Count = 0; //中断计数器清0Addr = i * 217;while(1){Temp1 = SONG[Addr++];if ( Temp1 == 0xFF ) //休止符{TR0 = 0;Delay_xMs(100);}else if ( Temp1 == 0x00 ) //歌曲结束符{return;}else{Temp2 = SONG[Addr++];TR0 = 1;while(1){_Speak = ~_Speak;Delay_xMs(Temp1);if ( Temp2 == Count ){Count = 0;break;}}}}}/*-------------------------------------------------功能:主程序-------------------------------------------------*/ void main(){Time0_Init(); //定时器0中断初始化while(1){Play_Song(0); //播放}}。

51单片机蜂鸣器播放音乐代码(生日快乐两只蝴蝶祝你平安)精编版

/*生日快乐歌曲*/#include <reg51.h>#define uint unsigned int#define uchar unsigned charsbit beep = P1^5;uchar code SONG_TONE[]={212,212,190,212,159,169,212,212,190,212,142,159, 212,212,106,126,159,169,190,119,119,126,159,142,159,0};uchar code SONG_LONG[]={9,3,12,12,12,24,9,3,12,12,12,24,9,3,12,12,12,12,12,9,3,12,12,12,24,0};//延时void DelayMS(uint x){uchar t;while(x--) for(t=0;t<120;t++);}void PlayMusic(){uint i=0,j,k;while(SONG_LONG[i]!=0||SONG_TONE[i]!=0){ //播放各个音符，SONG_LONG 为拍子长度for(j=0;j<SONG_LONG[i]*20;j++){beep=~beep;//SONG_TONE 延时表决定了每个音符的频率for(k=0;k<SONG_TONE[i]/3;k++);}DelayMS(10);i++;}}void main(){beep=0;while(1){PlayMusic(); //播放生日快乐DelayMS(500); //播放完后暂停一段时间}}两只蝴蝶：#include <reg51.h> // 这是单片机音乐代码生成器生成的代码#define uchar unsigned charsbit beepIO=P1^5; // 输出为P1.5 可以修改成其它IO 口uchar m,n;uchar code T[49][2]={{0,0},{0xF8,0x8B},{0xF8,0xF2},{0xF9,0x5B},{0xF9,0xB7},{0xFA,0x14},{0xFA,0x66},{0xFA,0xB9},{0xFB,0x03 },{0xFB,0x4A},{0xFB,0x8F},{0xFB,0xCF},{0xFC,0x0B},{0xFC,0x43},{0xFC,0x78},{0xFC,0xAB},{0xFC,0xDB},{0xFD,0x08},{0xFD,0x33},{0xFD,0x5B},{0xFD,0x8 1},{0xFD,0xA5},{0xFD,0xC7},{0xFD,0xE7},{0xFE,0x05},{0xFE,0x21},{0xFE,0x3C},{0xFE,0x55},{0xFE,0x6D},{0xFE,0x84},{0xFE,0x99},{0xFE,0xAD},{0xFE,0xC0 },{0xFE,0x02},{0xFE,0xE3},{0xFE,0xF3},{0xFF,0x02},{0xFF,0x10},{0xFF,0x1D},{0xFF,0x2A},{0xFF,0x36},{0xFF,0x42},{0xFF,0x4C},{0xFF,0x56},{0xFF,0x60},{ 0xFF,0x69},{0xFF,0x71},{0xFF,0x79},{0xFF,0x81}};uchar code music[][2]={{0,4},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19 ,4},{16,4},{19,4},{14,24},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,24},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19 ,4},{16,4},{19,4},{21,24},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19 ,4},{16,4},{19,4},{14,24},{23,4},{26,4},{26,16},{26,4},{28,4},{26,4},{23,24},{21,4},{23,4},{21,8},{21,4},{23,4},{21,4},{19,4},{16 ,4},{16,2},{19,2},{19,24},{0,20},{26,4},{26,4},{28,4},{31,4},{30,4},{30,4},{28,4},{23,4},{21,4},{21,4},{23,16},{0,4},{23,4},{23,4},{26,4} ,{28,8},{28,12},{16,4},{23,4},{21,4},{21,24},{23,4},{26,4},{26,4},{23,4},{26,8},{0,4},{31,8},{30,4},{28,4},{30,4},{23,8},{0,4},{28,4},{28,4},{ 30,4},{28,4},{26,4},{23,4},{21,8},{23,4},{21,4},{23,4},{26,16},{0xFF,0xFF}};void delay(uchar p){uchar i,j;for(;p>0;p--)for(i=181;i>0;i--)for(j=181;j>0;j--);}void pause(){uchar i,j;for(i=150;i>0;i--)for(j=150;j>0;j--);}void T0_int() interrupt 1beepIO=!beepIO;TH0=T[m][0]; TL0=T[m][1];}void main(){uchar i=0;TMOD=0x01; EA=1; ET0=1;while(1){m=music[i][0];n=music[i][1];if(m==0x00){TR0=0;delay(n);i++;}else if(m==0xFF){TR0=0;delay(30);i=0;}else if(m==music[i+1][0]){TR0=1;delay(n);TR0=0;pause();i++;}else{TR0=1;delay(n);i++;}}}祝你平安：#include "reg52.h"unsigned char Count;sbit _Speak =P1^5 ;unsigned char code SONG[] ={ //祝你平安0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x10,0x20,0x10,0x20,0x80,0x26,0x20,0x30,0x20, 0x30,0x20,0x39,0x10,0x30,0x10,0x30,0x80,0x26,0x20,0x20,0x20,0x20,0x20,0x1c,0x20, 0x20,0x80,0x2b,0x20,0x26,0x20,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x80,0x26,0x20, 0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x60,0x40,0x10,0x39,0x10,0x26,0x20, 0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x80,0x26,0x20,0x2b,0x10,0x2b,0x10, 0x2b,0x20,0x30,0x10,0x39,0x10,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x20, 0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x18,0x20,0x18,0x20,0x26,0x20, 0x20,0x20,0x20,0x40,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x1c,0x20,0x20,0x20, 0x20,0x80,0x1c,0x20,0x1c,0x20,0x1c,0x20,0x30,0x20,0x30,0x60,0x39,0x10,0x30,0x10, 0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x10,0x26,0x10,0x26,0x10,0x2b,0x10,0x2b,0x80, 0x18,0x20,0x18,0x20,0x26,0x20,0x20,0x20,0x20,0x60,0x26,0x10,0x2b,0x20,0x30,0x20, 0x30,0x20,0x1c,0x20,0x20,0x20,0x20,0x80,0x26,0x20,0x30,0x10,0x30,0x10,0x30,0x20, 0x39,0x20,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x10,0x40,0x10,0x20,0x10, 0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x00};void Time0_Init(){TMOD = 0x01;IE = 0x82;TH0 = 0xD8;TL0 = 0xEF; //12MZ晶振，10ms}void Time0_Int() interrupt 1{TH0 = 0xD8;TL0 = 0xEF;Count++; //长度加1}/*-------------------------------------------------功能:1MS延时子程序-------------------------------------------------*/ void Delay_xMs(unsigned int x){unsigned int i,j;for( i =0;i < x;i++ ){for( j =0;j<3;j++ );}}void Play_Song(unsigned char i){unsigned char Temp1,Temp2;unsigned int Addr;Count = 0; //中断计数器清0Addr = i * 217;while(1){Temp1 = SONG[Addr++];if ( Temp1 == 0xFF ) //休止符{TR0 = 0;Delay_xMs(100);}else if ( Temp1 == 0x00 ) //歌曲结束符{return;}else{Temp2 = SONG[Addr++];TR0 = 1;while(1){_Speak = ~_Speak;Delay_xMs(Temp1);if ( Temp2 == Count ){Count = 0;break;}}}}}/*------------------------------------------------- 功能:主程序-------------------------------------------------*/ void main(){Time0_Init(); //定时器0中断初始化while(1){Play_Song(0); //播放}}。

51单片机蜂鸣器播放单音节音乐

// 3_ 2_ 3 1
0xFD,0x23,0x7F, 0xFC,0xAC,0x7F, 0xFD,0x23,0xFF, 0xFC,0x44,0xFF,
// 1_ 3_ 2 .5
0xFC,0x44,0x7F, 0xFD,0x23,0x7F, 0xFC,0xAC,0xFF, 0xFA,0x68,0xFF,
{
for (i =0; i < 363; i++)
{;}
}
}
*名称：Init()
*功能：设置计数器0工作方式,16位计数,溢出中断方式
**********************************************************************************/
void Init()
{
TMOD = 0x01; //定时器0处于计时方式,16位
*名称：Count1(void) interrupt 1
*功能：设置计时器0溢出中断,每中断一次改变P2_3引脚电平
*********************************************************************************/
void Count1(void) interrupt 1
void main()
{
uchar time;
Init();
TH0 = high;
TL0 = low;
while (1)
{
if (music[ptr] != 0xFF && music[ptr] != 0x00)//判断是否是正常音符
{
TR0 = 0;
P2_3 = 1;

STC15单片机无源蜂鸣器演奏歌曲RGB灯跟随节奏闪烁程序

敬告：没有51单片机基础的人请慎重下载高质量实用性51单片机STC15W系列程序（2），STC8A系列可参考STC15单片机无源蜂鸣器演奏歌曲RGB灯跟随节奏闪烁程序节选歌曲《骑上我心爱的小摩托》开头部分一段整体程序：#include "STC15.h"#include "intrins.h"#define MAIN_Fosc 11059200Lsbit BUZZ = P3^7;sbit KEY=P2^5;sbit R_color = P1^4;sbit G_color = P1^5;sbit B_color = P3^4;unsigned char cycle_value;bit flag;bit enableBuzzer;bit keyflag;unsigned int code note[]={523, 587, 659, 698, 784, 880, 988,};unsigned int code notefre[]={65536-((MAIN_Fosc/523)/2), 65536-((MAIN_Fosc/587)/2), 65536-((MAIN_Fosc/659)/2),65536-((MAIN_Fosc/698)/2),65536-((MAIN_Fosc/784)/2),65536-((MAIN_Fosc/880)/2),65536-((MAIN_Fosc/988)/2) };void Timer0_config();void PlayMusic();void delay_ms(unsigned int x) {unsigned i,j;for(i=0;i<x;i++){for(j=0;j<1100;j++);}}void Key_Scan(){if(KEY==1){delay_ms(10);if(KEY==1){keyflag = 1;}}}void RGB(){switch(cycle_value){case 0:R_color = 1;G_color = 0;B_color = 0;cycle_value = 1;break;case 1:R_color = 0;G_color = 1;B_color = 0;cycle_value = 2;break;case 2:R_color = 0;G_color = 0;B_color = 1;cycle_value = 0;break;default:break;}}void main(){P3M1 &= 0x7F; P3M0 &= 0x7F;P2M1 &= 0xDF; P2M0 &= 0xDF;P1M1 &= 0xCF; P1M0 |= 0x30;//P14,P15 pull output P3M1 &= 0xEF; P3M0 |= 0x10;//P34 pull outputTimer0_config();EA = 1;while(1){Key_Scan();if(keyflag){keyflag = 0;PlayMusic();}}}void PlayMusic(){unsigned char beat;//present beatunsigned int timer;//timerunsigned int totalTime;//timerunsigned int soundTime;//sount timeunsigned char code MotoNote[] = {0,1, 2,3, 4,3,3, 4,5, 5, 0, 0,0,6, 6,6, 6, 5, 4, 5, 0, 0, };unsigned char code MotoBeat[] = {2,2, 2,2, 2,1,1, 2,2, 6, 4, 4,2,2, 2,2, 2, 4, 2, 6, 4, 4,};for(beat=0;beat<sizeof(MotoBeat);){while(!flag);flag = 0;if(timer==0){totalTime =(note[MotoNote[beat]]*MotoBeat[beat])>>2;soundTime = totalTime - (totalTime>>2);TH0 = notefre[MotoNote[beat]]>>8;TL0 = notefre[MotoNote[beat]];enableBuzzer = 1;timer++;}else{if(timer>=totalTime){timer = 0;beat++;}else{timer++;if(timer==soundTime){enableBuzzer = 0;}}}}}void Timer0_config(){TMOD &= 0xF0;//16bit auto reloadAUXR |= 0x80;//1TTH0 = 0xFF;TL0 = 0x00;ET0 = 1;TR0 = 1;}void Timer0_interrupt() interrupt 1 {if(enableBuzzer){BUZZ = ~BUZZ;RGB();}else{BUZZ = 1;R_color = 0;G_color = 0;B_color = 0;}flag = 1;}。

单片机课程设计报告利用蜂鸣器播放音乐

课程设计：嵌入式系统应用题目名称：利用蜂鸣器实现音乐播放功能姓名：学号：班级：完成时间：1设计的任务设计内容：动手焊接一个51单片机设计目标：利用单片机上的蜂鸣器实现音乐播放功能2设计的过程基本结构在本次的试验中采用了STC89C52RC单片机,STC89C52RC单片机是宏晶科技推出的新一代高速/低功耗/超强抗干扰的单片机,指令代码完全兼容传统8051单片机,12时钟/机器周期,工作电压：～5V单片机/～3V单片机,工作频率范围：0～40MHz,相当于普通8051的0～80MHz,实际工作频率可达48MHz,用户应用程序空间为8K字节;STC89C52RC引脚图STC89C52RC单片机的工作模式：（1）典型功耗<μA,可由外部中断唤醒,中断返回后,继续执行原程序（2）空闲模式：典型功耗2mA（3）正常工作模式：典型功耗4Ma～7mA4唤醒,适用于水表、气表等电池供电系统及便携设备2.蜂鸣器及其工作原理：蜂鸣器按其结构分主要分为压电式蜂鸣器和电磁式蜂鸣器两种类型;电磁式蜂鸣器由振荡器、电磁线圈、磁铁、振动膜片及外壳等组成;接通电源后,振荡器产生的音频信号电流通过电磁线圈,使电磁线圈产生磁场,振动膜片在电磁线圈和磁铁的相互作用下,周期性地振动发声;本实验采用的是电磁式蜂鸣器;蜂鸣器按其是否带有信号源又分为有源和无源两种类型;有源蜂鸣器只需要在其供电端加上额定直流电压,其内部的震荡器就可以产生固定频率的信号,驱动蜂鸣器发出声音;无源蜂鸣器可以理解成与喇叭一样,需要在其供电端上加上高低不断变化的电信号才可以驱动发出声音;本实验采用的是有源蜂鸣器;蜂鸣器与单片机连接电路图软件设计过程1.蜂鸣器发声原理本实验由于采用有源蜂鸣器,只需将引脚端口P3^4清零,蜂鸣器即可发声；P3^4置位,蜂鸣器停止发声;采用置1置0的方法只能使蜂鸣器发声或停止发声,想要使蜂鸣器发出声音,必须对蜂鸣器发出声音的音频和节拍进行控制;音乐基础音调：不同音高的乐音是用C、D、E、F、G、A、B来表示,这7个字母就是音乐的音名,它们一般依次唱成DO、RE、MI、FA、SO、LA、SI,即唱成简谱的1、2、3、4、5、6、7,相当于汉字“多来米发梭拉西”的读音,这是唱曲时乐音的发音,所以叫“音调”,即Tone;把C、D、E、F、G、A、B这一组音的距离分成12个等份,每一个等份叫一个“半音”;两个音之间的距离有两个“半音”,就叫“全音”;在钢琴等键盘乐器上,C–D、D–E、F–G、G–A、A–B两音之间隔着一个黑键,他们之间的距离就是全音；E–F、B–C两音之间没有黑键相隔,它们之间的距离就是半音;通常唱成1、2、3、4、5、6、7的音叫自然音,那些在它们的左上角加上﹟号或者b号的叫变化音;﹟叫升记号,表示把音在原来的基础上升高半音,b叫降记音,表示在原来的基础上降低半音;例如高音DO的频率1046Hz刚好是中音DO的频率523Hz的一倍,中音DO的频率523Hz刚好是低音DO频率266Hz的一倍；同样的,高音RE 的频率1175Hz刚好是中音RE的频率587Hz的一倍,中音RE的频率587Hz 刚好是低音RE频率294Hz的一倍;节拍：节拍是让音乐具有旋律固定的律动,而且可以调节各个音的快满度;“节拍”,即Beat,简单说就是打拍子,就像我们听音乐不自主的随之拍手或跺脚;若1拍实,则1/4拍为;至于1拍多少s,并没有严格规定,就像人的心跳一样,大部分人的心跳是每分钟72下,有些人快一点,有些人慢一点,只要听的悦耳就好;音持续时间的长短即时值,一般用拍数表示;休止符表示暂停发音;1）控制发声频率要产生音频脉冲,只要算出某一音频的周期1/频率,然后将此周期除以2,即为半周期的时间;利用定时器计时这半个周期时间,每当计时到后就将输出脉冲的I/O反相,然后重复计时此半周期时间再对I/O反相,就可在I/O 脚上得到此频率的脉冲;利用STC89C52RC的内部定时器使其工作在计数器模式MODE1下,改变计数值TH0及TL0从而产生不同频率;此外结束符和休止符可以分别用代码00H和FFH来表示,若查表结果为0x00,则表示曲子终了；若查表结果为0xff,则产生相应的停顿效果;以标准音高A为例,A的频率是440Hz,周期T=1/440=2272us;在占空比为50%的情况下,导通时间=断开时间=半周期t=2272us/2=1136us,利用P3^4端口的位操作,经过不断地反相变换即可得到标准音高A的音频脉冲;端口导通时间与断开时的时间利用定时器实现;具体的方法是将单片机定时器的中断触发时间设为半周期t,这样每隔半周期端口反相,输出连续的对应音高的频率;设晶振的频率为f0,中断触发时间半周期为t,定时器工作在模式1时计数器的初值为THL,高8位为THL,低8位为TL;时钟周期即为1/f0,定时器每一次累加用去一个机器周期,一个机器周期包含12个时钟周期,即定时器每次加一所用时间是12/f0;定时器在模式1下计时采用16位数,最大计数为2^16-165535,再次加一65536溢出触发中断;根据以上分析可得如下关系：音频对应定时器初值的高8位TH=THL/2^8=65536-tf/12/256;音频对应定时器初值的低8位TL=THL%2^8=65536-tf/12%256;附：八度12音阶定时器初值表只含自然音低音音名频率Hz 晶振12MHz 晶振中音音名频率Hz 晶振12MHz 晶振高音音名频率Hz 晶振12MHz 晶振 Do 262 0xF885 0xF91B Do 523 0xFC43 0xFC8E Do 1046 0xFE21 0xFE47 Re 294 0xF95A 0xF9DF Re 587 0xFCAD 0xFCED Re 1175 0xFE56 0xFE76 Mi 330 0xFA13 0xFA8A Mi 659 0xFD0A 0xFD43 Mi 1318 0xFE85 0xFEA1 Fa 349 0xFA68 0xFAD8 Fa 698 0xFD34 0xFD6A Fa 1397 0xFE9A 0xFEC7 So 392 0xFB04 0xFB68 So 784 0xFD82 0xFDB3 So 1568 0xFEC1 0xFED9 La 440 0xFB90 0xFBE9 La 880 0xFDC8 0xFDF3 La 1760 0xFEE4 0xFEF9 Si4940xFC0C0xFC5BSi9880xFE060xFE2DSi19760xFF030xFF162控制发声节拍每个音符的节拍可通过延时一定的时间来实现,在具体实现时需要有一个基本的带参延时程序,用于主函数根据不同的音符调用不同的时延;若以十六分之一音符的时长为基本延时时间,则十六分音符只需调用一次延时程序,八分音符则需调用两次延时程序,以此类推;3）简谱及其编码用数字1至7表示;这7个数字就等于的;如果是C 大调,加上音名,就会是这样：八度如果是高一个八度,就会在数字上方加上一点;如果是低一个八度,就会数字下方加上一点;在中间的那一个就什么也不用加;如果要再高一个八度,就在上方垂直加上两点如：；要再低一个八度,就在下方垂直加上两点如：,如此类推;见下表所示：大调 ... ... 小调......音长通常只有数字的是;数字下加一条横线,就可令四分音符的长度减半,即成为；两条横线可令八分音符的长度减半,即成为,余此类推；简单来説,下音阶CDEFGAB唱名 do re mi fa so la si数字 1 2 3 4 5 6 7加横綫数目与五綫谱的符尾数目相对应;数字后方的横线延长音符,每加一条横线延长一个的长度;正如五綫谱的附点一样,数字后方加一点会将音符长度增加一半;休止符休止符用“0”来表示;比四分休止符长,就只需在每一个四分休止符再多加一个“0”,不需在后方加上横线;若整个小节均是休止状态的话,就在每个四分音符加一个“0”,就像是3拍4就写成“|000|”,而4拍4就写成“|0000|”;无音高音符就像敲击乐的乐器那样是没有音高的,这时,简谱就需要用“X”或“x”表达;例如拍手时,简谱上就需如此表达：小节线正如五綫谱一样,小节与小节之间以纵綫称分隔,乐曲终止以一粗一细的直綫表示但是一般不分粗细；重复乐段以纵綫后两点表示开始,纵綫前两点表示终止;拍号的表达方式为：“2/4”、“3/4”、“4/4”、“6/8”等等;拍号一般都是置于的后方;变调与调号表示有两种方法：可以直接写“C调”,“C小调”或“Key:C”,“Key:Cm”;亦可写清楚主音代表哪一个音,例如1=C,就是C大调大调以1为主音;6=C就是C小调小调以6为主音;2=D就是D多利安调以2为主音;五线谱有,简谱同样有升降号;在简谱中,若需表达升降号,就把符号加在数字1至7的前方,让该音升高或降低;若要把升降号加在调号跟CDEFGAB七个字母,就须加在它们的后方;在五綫谱中,C小调要把B-E-A三个音降低半音;所以表达它的和声小调时,就会把一个放在B前面;简谱就一定得写 5,因为5不能下降;延音线、圆滑线与其他音乐符号简谱Tie跟slur都是跟五线谱相同,一定得置在数字上方;表达staccato时需要特别小心,因为很容易会跟低八度的那一点混淆,因此在表达跳音时把那一点写得粗点及低点;简谱编码将简谱中的每个音符进行编码,每个音符用一个unsignedchar字符类型表示,简谱可用一个unsignedchar字符数组表示;字符的前四位表示音频,可以表示0-f共十六个音符;本实验中采用了中音区和高音区;中音do-si分别编码为1~7,高音do-si分别编码为8~E,停顿编为0;字符的后四位表示节拍,节拍以十六分音符为单位在本程序中为165ms,一拍即四分音符等于4个十六分音符,编为4,其它的播放时间以此类推;以0xff作为曲谱的结束标志;程序从数组中取出一个数,然后分离出高4位得到音调,将值赋给定时器0,得到音调；接着分离出该数的低4位,得到节拍;本实验中播放音乐使用简谱如下：将其编码成：ucharcodezbjbxf={0x64,0xA3,0xC1,0xA2,0x62,0x84,0x61,0x81,0x61,0xA4,0xA1,0x91,0xA1,0x81,0 x64,0xA3,0xC1,0xD2,0xD2,0xD2,0xA2,0xC4,0xA1,0xC1,0xA1,0xC1,0xD2,0xD2,0x D2,0xA2,0xC4,0xC2,0x62,0xC2,0x62,0xA2,0xA2,0x84,0x94,0x94,0x92,0x81,0x9 1,0xA2,0xC2,0xD4,0xE4,0xA4,0xE4,0xA2,0xE2,0xA2,0xE2,0xA2,0xA2,0x84,0x94 ,0x94,0x92,0x81,0x91,0xA2,0xC2,0xD8};程序流图及说明主程序流程图程序代码：include<> defineucharunsignedchardefineuintunsignedintsbitfm=P3^4;算机与单片机的连接不上问题计算机与单片机的连接需要在电脑端安装相应的USB转串的驱动,由于我组没有使用实验室windowsxp系统,而使用的是个人计算机windows7系统,所以需要针对win7的驱动;后来联网搜索下载相应的驱动之后解决了这一问题;2.如何使蜂鸣器发出声音而非Be-Be声为了解决这个问题,我们深入研究了蜂鸣器发声原理与乐谱相关的知识;通过学习相关知识发现,不同的音符对应不同的音高,音高取决于发声频率;所以可以通过构造不同频率的方波来使蜂鸣器发出不同频率的声音,具体实现时利用定时器计时,定时器每一次累加消耗一个机器周期,即12个时钟周期;本实验采用晶振频率为12MHz,即定时器每一次累加消耗1us,通过设置定时器初值设定蜂鸣器取法的时间间隔,从而产生相应的音频;每个音符不但有频率属性,还有节拍属性;对不同节拍的控制可以采用延迟一定的时间来得到; 5总结在本次课程设计中,我们进一步加深了对小型嵌入式系统的认识;实验初期单片机需要自己焊接,通过亲手焊接电路板,了解了如何将实验原理图转化为具体的硬件实物连接;通过使用TN单片机开发板和STC89C52RC系统,对单片机应用开发有了初步的熟悉;在实验的过程中,使用到了C51的编译环境KeilC和单片机通讯程序STC_ISP,两者是单片机开发所不可缺少的工具;在具体实施的过程中,通过一一解决遇到的问题,增强了动手实践能力;。

51单片机通过按键控制蜂鸣器发生详解

单片机开发报告院系：电子工程学院专业：自动化班级：自动化1401学号：姓名：赵越指导老师：刘星光2018年01 月04 日一.系统任务按键控制蜂鸣器发声二．电路原理图三．程序设计内容“叮咚”电子门铃实验程序：常见的家用电子门铃在有客人来访时候，如果按压门铃按钮时，室内会发出“叮咚”声音，本实验程序模拟电子门铃的发音，当我们按压实验板上的K1按钮时候，蜂鸣器发出“叮咚”音乐声，是一个比较实用的程序。

使用无源蜂鸣器输出7个基本音阶声音是由物体振动所产生的。

只是由于物体的材料以及振幅、频率不同，而产生不同的声音。

声音的响度是由振幅决定的，而音调则是由频率决定的，那么我们只需要控制物体振动的频率，就可以发出固定的声调。

五．汇编程序ORG 0000HAJMP STARTORG 000BHINC 20H ;中断服务,中断计数器加1MOV TH0,#0D8HMOV TL0,#0F0H 12M晶振，形成10毫秒中断RETIORG 001BHLJMP INTT1 ;跳转到T1中断服务程序START: MOV DPTR,#00H ;初始化程序MOV A,#00HOBUF1 EQU 30HOBUF2 EQU 31HOBUF3 EQU 32HOBUF4 EQU 33HFLAGB BIT 00HSTOPB BIT 01HMOV SP,#50HMOV TH0,#0D8HMOV TL0,#0F0HMOV TMOD,#21HMOV TH1,#09HMOV TL1,#09HMOV IE,#8AHAJMP LOOPLOOP: JNB P3.2,MUSIC0JNB P3.1,MAINAJMP LOOPMAIN:JB P3.1,MAIN ;检测p3.1按钮LCALL YS10M ;延时去抖动JB P3.1,MAINSETB TR1 ;按钮有效MOV OBUF1,#00HMOV OBUF2,#00HMOV OBUF3,#00HMOV OBUF4,#00HCLR FLAGBCLR STOPBJNB STOPB,$AJMP START ;发出“叮咚”完毕，返回重新检测按钮YS10M: ;10ms延时子程序MOV R6,#20MOV R7,#100DJNZ R7,$DJNZ R6,D1RETTING: AJMP STARTINTT1: ;定时器T1中断服务程序INC OBUF3 ;中断服务程序中发出一声“叮咚”响声MOV A,OBUF3CJNE A,#100,NEXTMOV OBUF3,#00HINC OBUF4MOV A,OBUF4CJNE A,#20,NEXTMOV OBUF4,#00HJB FLAGB,PGSTPCPL FLAGBAJMP NEXTPGSTP:SETB STOPBCLR TR1LJMP INT0RETJB FLAGB,SOU2INC OBUF2MOV A,OBUF2CJNE A,#04H,INT0RETMOV OBUF2,#00HCPL P1.5LJMP INT0RETSOU2:INC OBUF1MOV A,OBUF1CJNE A,#05H,INT0RETMOV OBUF1,#00HCPL P1.5INT0RET:RETIMUSIC0: JB p3.2,MUSIC0LCALL YS10MJB p3.2,MUSIC0NOPMOV DPTR,#DAT 表头地址送DPTRMOV 20H,#00H ;中断计数器清0MOV B,#00H ;表序号清0 MAIN2: JNB P3.3,TINGCLR AMOVC A,@A+DPTR ;查表取代码JZ END0 ;是00H,则结束CJNE A,#0FFH,MUSIC5LJMP MUSIC3MUSIC5:NOPMOV R6,AINC DPTRMOV A,BMOVC A,@A+DPTR ;取节拍代码送R7MOV R7,ASETB TR0 ;启动计数MUSIC2:NOPCPL P1.5MOV A,R6MOV R3,ALCALL DELMOV A,R7CJNE A,20H,MUSIC2 ;中断计数器(20H)=R7否;不等,则继续循环MOV 20H,#00H ;等于,则取下一代码INC DPTRINC BLJMP MAIN2MUSIC3: ;休止100毫秒NOPCLR TR0MOV R2,#0DHMUSIC4:NOPMOV R3,#0FFHLCALL DELDJNZ R2,MUSIC4INC DPTRLJMP MAIN2END0:NOPMOV R2,#0FFH ;歌曲结束,延时MUSIC6:MOV R3,#00HLCALL DELDJNZ R2,MUSIC6CLR TR0LJMP LOOPDEL:NOPDEL3:MOV R4,#03HDEL4:NOPDJNZ R4,DEL4NOPDJNZ R3,DEL3RETDENG1: MOV R3,#64HDJNZ R3,$AJMP MAINDAT:DB 30h,30h,26h,26h,20h,20h,1ch,1ch,1ah,1ah,18h,18h,00hEND六、程序下载及调试步骤：1．点击translate 按钮预编译2．点击build 按钮编译3．点击rebuild 按钮编译所有目标4．打开普中烧录软件四．程序流程图。

基于c51单片机编写简单蜂鸣器音乐程序的方法

{
uint i;
for(i=0;i<jp;i++)
{
sound(s);
if(s==0xff)break;
}
}
//*******************************************************************
void main()//主函数
{
while(1)
{
c=0;//用来使数组从头开始读取
/*3*/case 0x0d:j=s/330;break;case 0x0e:j=s/659;break;case 0x0f:j=s/1318;break;
/*4*/case 0x10:j=s/349;break;case 0x11:j=s/370;break;case 0x12:j=s/698;break;case 0x13:j=s/740;break;case 0x14:j=s/1379;break;case 0x15:j=s/1480;break;
0x01,0x0d,0x16,0x1c,0xff,0x1c,0x1c,0x16,0x07,0x07,0x10,0x0d,0xff, 0x01,0x0d,0x16,0x1c,0xff,
0x1c,0x1c,0x22,0x1c,0x16,0x10,0x0d,0x10,0x0d,0x07,0x01,0x00} ;//*
uint code music[]=//这是一个“童话”谱子的数组，与m_t()子程序中的十六进制数一一对应，0xff代表每次音乐的停顿，0x00表示音乐的结束
{0x16,0x10,0x0d,0xff, 0x0d,0x10,0x0d, 0xff, 0x0d,0x10,0x0d,0x10,0x0d,0x07,0x01,0xff,

单片机控制蜂鸣器鸣奏音乐

单片机控制蜂鸣器鸣奏音乐——中北大学：马政贵首先介绍蜂鸣器的发声原理。

我们都知道，音调和音调的时长是音符的主要特征，通过产生不同的音调和音调的时长可以奏出不同的音符来。

然后一个个音符串联在一起就可以产生美妙的音乐来了。

音调主要由声音的频率决定，通过单片机给蜂鸣器不同的音频脉冲来产生不同的音调。

要产生音频脉冲，只要算出某一音频的周期（周期=1/频率），然后将此周期除以2即为半周期的时间。

利用单片机的定时器工作在计数模式MODE1下，设定TH0和TL0的值以产生这半个周期，每当计时到达时就将输出脉冲的I/O（即接蜂鸣器的那个管脚）反相，然后重复计时此半个周期再对I/O反相，就可以在I/O引脚上得到此频率的脉冲。

如果没有必要进行精确的计时，可以用for循环空语句来粗略计时即可（本文选用此法）。

当单片机使用11.0592Mhz的晶振时，for(i=0;i<115;i++);这个空循环延时约为1ms；当晶振选用12Mhz时，可使用for(i=0;i<125;i++);这个空循环来延时1ms。

在这个空循环外头再进行一次循环就可以实现延时若干ms。

如：知道如何产生不同的频率的音调和进行音调的延时的之后，我们便可以编写程序来让单片机控制蜂鸣器来鸣奏音乐了。

下面附上不同音调所对应的频率表：下文介绍了让单片机控制蜂鸣器进行鸣奏音乐的两种方法。

第一种方法是基础的方法，就是顺序地让蜂鸣器挨个地演奏每个音符。

方法一：（此歌曲是《莫斯哥郊外的晚上》的乐曲）#include <reg52.h>sbit fmq=P3^6;void delay(unsigned int a){unsigned char b;while(a--){for(b=0;b<115;b++) ;}}void yanzou(unsigned char i,unsigned int pai){unsigned char y;unsigned int j;for(j=0;j<pai;j++){fmq=0;for(y=0;y<i;y++) ;fmq=1;for(y=0;y<i;y++) ;}}void main(){while(1){yanzou(65,220); //1/2拍中音6yanzou(55,262); //1/2拍高音1yanzou(44,330); //1/2拍高音3yanzou(55,262); //1/2拍高音1yanzou(49,587); //1拍高音2yanzou(55,262); //1/2拍高音1yanzou(58,247); //1/2拍中音7yanzou(44,660); //1拍高音3yanzou(49,587); //1拍高音2yanzou(65,880); //2拍中音6yanzou(55,262); //1/2拍高音1yanzou(44,330); //1/2拍高音3yanzou(37,392); //1/2拍高音5yanzou(37,392); //1/2拍高音5yanzou(65,440); //1拍中音6yanzou(37,392); //1/2拍高音5yanzou(41,349); //1/2拍高音4yanzou(44,2640); //4拍高音3yanzou(41,698); //1拍高音4yanzou(37,784); //1拍高音5yanzou(29,492); //1/2拍高音7yanzou(33,440); //1/2拍高音6yanzou(44,660); //1拍高音3delay(250);yanzou(58,494); //1拍中音7yanzou(65,220); //1/2拍中音6yanzou(44,330); //1/2拍高音3yanzou(49,293); //1/2拍高音2yanzou(41,698); //1拍高音4yanzou(41,698); //1拍高音4yanzou(37,392); //1/2拍高音5yanzou(41,349); //1/2拍高音4yanzou(44,660); //1拍高音3yanzou(49,293); //1/2拍高音2yanzou(55,262); //1/2拍高音1yanzou(44,660); //1拍高音3yanzou(49,587); //1拍高音2yanzou(65,880); //2拍中音6yanzou(65,880); //2拍中音6yanzou(41,698); //1拍高音4yanzou(37,784); //1拍高音5yanzou(29,492); //1/2拍高音7yanzou(33,440); //1/2拍高音6yanzou(44,660); //1拍高音3delay(250);yanzou(58,494); //1拍中音7yanzou(65,220); //1/2拍中音6yanzou(44,330); //1/2拍高音3yanzou(49,293); //1/2拍高音2yanzou(41,698); //1拍高音4yanzou(41,698); //1拍高音4yanzou(37,392); //1/2拍高音5yanzou(41,349); //1/2拍高音4yanzou(44,660); //1拍高音3yanzou(49,293); //1/2拍高音2yanzou(55,262); //1/2拍高音1yanzou(44,660); //1拍高音3yanzou(49,587); //1拍高音2yanzou(65,880); //2拍中音6yanzou(65,880); //2拍中音6delay(5000);}}观察方法一的主函数可以发现，每个语句的形式和实现的功能都是一样的，于是可以想到用数组来进行代码的简化。

51单片机蜂鸣器播放音乐代码

/*生日快乐歌曲*/#include <>#define uint unsigned int#define uchar unsigned charsbit beep = P1^5;uchar code SONG_TONE[]={212,212,190,212,159,169,212,212,190,212,142,159, 212,212,106,126,159,169,190,119,119,126,159,142,159,0};uchar code SONG_LONG[]={9,3,12,12,12,24,9,3,12,12,12,24,9,3,12,12,12,12,12,9,3,12,12,12,24,0};//延时!void DelayMS(uint x){uchar t;while(x--) for(t=0;t<120;t++);}void PlayMusic(){uint i=0,j,k;while(SONG_LONG[i]!=0||SONG_TONE[i]!=0){ //播放各个音符，SONG_LONG 为拍子长度%for(j=0;j<SONG_LONG[i]*20;j++){beep=~beep;//SONG_TONE 延时表决定了每个音符的频率for(k=0;k<SONG_TONE[i]/3;k++);}DelayMS(10);i++;}}~void main(){beep=0;while(1){PlayMusic(); //播放生日快乐DelayMS(500); //播放完后暂停一段时间}}两只蝴蝶：%#include <> // 这是单片机音乐代码生成器生成的代码#define uchar unsigned charsbit beepIO=P1^5; // 输出为可以修改成其它IO 口uchar m,n;uchar code T[49][2]={{0,0},{0xF8,0x8B},{0xF8,0xF2},{0xF9,0x5B},{0xF9,0xB7},{0xFA,0x14},{0xFA,0x66},{0xFA,0xB9},{0xFB,0x03 },{0xFB,0x4A},{0xFB,0x8F},{0xFB,0xCF},{0xFC,0x0B},{0xFC,0x43},{0xFC,0x78},{0xFC,0xAB},{0xFC,0xDB},{0xFD,0x08},{0xFD,0x33},{0xFD,0x5B},{0xFD,0x8 1},{0xFD,0xA5},{0xFD,0xC7},{0xFD,0xE7},{0xFE,0x05},{0xFE,0x21},{0xFE,0x3C},{0xFE,0x55},{0xFE,0x6D},{0xFE,0x84},{0xFE,0x99},{0xFE,0xAD},{0xFE,0xC0 },{0xFE,0x02},{0xFE,0xE3},{0xFE,0xF3},{0xFF,0x02},{0xFF,0x10},{0xFF,0x1D},{0xFF,0x2A},{0xFF,0x36},{0xFF,0x42},{0xFF,0x4C},{0xFF,0x56},{0xFF,0x60},{ 0xFF,0x69},{0xFF,0x71},{0xFF,0x79},{0xFF,0x81}};~uchar code music[][2]={{0,4},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19 ,4},{16,4},{19,4},{14,24},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,24},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19 ,4},{16,4},{19,4},{21,24},{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19 ,4},{16,4},{19,4},{14,24},{23,4},{26,4},{26,16},{26,4},{28,4},{26,4},{23,24},{21,4},{23,4},{21,8},{21,4},{23,4},{21,4},{19,4},{16 ,4},{16,2},{19,2},{19,24},{0,20},{26,4},{26,4},{28,4},{31,4},{30,4},{30,4},{28,4},{23,4},{21,4},{21,4},{23,16},{0,4},{23,4},{23,4},{26,4} ,{28,8},{28,12},{16,4},{23,4},{21,4},{21,24},{23,4},{26,4},{26,4},{23,4},{26,8},{0,4},{31,8},{30,4},{28,4},{30,4},{23,8},{0,4},{28,4},{28,4},{ 30,4},{28,4},{26,4},{23,4},{21,8},{23,4},{21,4},{23,4},{26,16},{0xFF,0xFF}};void delay(uchar p){.uchar i,j;for(;p>0;p--)for(i=181;i>0;i--)for(j=181;j>0;j--);}void pause(){uchar i,j;for(i=150;i>0;i--)for(j=150;j>0;j--);/}void T0_int() interrupt 1{beepIO=!beepIO;TH0=T[m][0]; TL0=T[m][1];}void main(){uchar i=0;TMOD=0x01; EA=1; ET0=1;、while(1){m=music[i][0];n=music[i][1];if(m==0x00){TR0=0;delay(n);i++;}else if(m==0xFF){TR0=0;delay(30);i=0;}else if(m==music[i+1][0]){TR0=1;delay(n);TR0=0;pause();i++;}else.{TR0=1;delay(n);i++;}}}祝你平安：#include ""unsigned char Count;sbit _Speak =P1^5 ;unsigned char code SONG[] ={ //祝你平安0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x10,0x20,0x10,0x20,0x80,0x26,0x20,0x30,0x20, 0x30,0x20,0x39,0x10,0x30,0x10,0x30,0x80,0x26,0x20,0x20,0x20,0x20,0x20,0x1c,0x20, %0x20,0x80,0x2b,0x20,0x26,0x20,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x80,0x26,0x20, 0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x60,0x40,0x10,0x39,0x10,0x26,0x20, 0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x80,0x26,0x20,0x2b,0x10,0x2b,0x10, 0x2b,0x20,0x30,0x10,0x39,0x10,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x20, 0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x18,0x20,0x18,0x20,0x26,0x20, 0x20,0x20,0x20,0x40,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x1c,0x20,0x20,0x20, 0x20,0x80,0x1c,0x20,0x1c,0x20,0x1c,0x20,0x30,0x20,0x30,0x60,0x39,0x10,0x30,0x10, 0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x10,0x26,0x10,0x26,0x10,0x2b,0x10,0x2b,0x80, 0x18,0x20,0x18,0x20,0x26,0x20,0x20,0x20,0x20,0x60,0x26,0x10,0x2b,0x20,0x30,0x20, 0x30,0x20,0x1c,0x20,0x20,0x20,0x20,0x80,0x26,0x20,0x30,0x10,0x30,0x10,0x30,0x20,￥0x39,0x20,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x10,0x40,0x10,0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x00}; void Time0_Init(){TMOD = 0x01;IE = 0x82;TH0 = 0xD8;TL0 = 0xEF; //12MZ晶振，10ms}void Time0_Int() interrupt 1({TH0 = 0xD8;TL0 = 0xEF;Count++; //长度加1}/*-------------------------------------------------功能:1MS延时子程序-------------------------------------------------*/void Delay_xMs(unsigned int x){）unsigned int i,j;for( i =0;i < x;i++ ){for( j =0;j<3;j++ );}}void Play_Song(unsigned char i){unsigned char Temp1,Temp2;unsigned int Addr;!Count = 0; //中断计数器清0Addr = i * 217;while(1){Temp1 = SONG[Addr++];if ( Temp1 == 0xFF ) //休止符{TR0 = 0;Delay_xMs(100);}:else if ( Temp1 == 0x00 ) //歌曲结束符{return;}else{Temp2 = SONG[Addr++];TR0 = 1;while(1){._Speak = ~_Speak;Delay_xMs(Temp1);if ( Temp2 == Count ){Count = 0;break;}}}}}/*-------------------------------------------------功能:主程序-------------------------------------------------*/ void main(){Time0_Init(); //定时器0中断初始化while(1){Play_Song(0); //播放}}。

基于51单片机蜂鸣器发声的-C语言程序

本例使用延时函数实精品文档按键发音/* 名称：按键发音说明：按下不同的按键会是SOUNDE 发出不同频率的声音。

现不同频率的声音输出，以后也可使用定时器*/#include<reg51.h>#define uchar unsigned char#define uint unsigned intsbit BEEP=P3A 7;sbit K 仁 P1A4;sbit K2=P1A5;sbit K3=P1A6;sbit K4=P1A7;// 延时void DelayMS(uint x){uchar t;while(x--) for(t=0;t<120;t++);}// 按周期 t 发音void Play(uchar t){uchar i;for(i=0;i<100;i++){BEEP=~BEEP;DelayMS(t);}BEEP=0;}void main(){P1=0xff;BEEP=0;while(1){if(K1==0) Play(1);if(K2==0) Play(2);if(K3==0) Play(3);if(K4==0) Play(4);}}精品文档播放音乐/* 名称：播放音乐说明：程序运行时播放生日快乐歌，未使用定时器中断，所有频率完全用延时实现*/#include<reg51.h>#define uchar unsigned char#define uint unsigned intsbit BEEP=P3A7;// 生日快乐歌的音符频率表，不同频率由不同的延时来决定uchar code SONG_TONE[]={212,212,190,212,159,169,212,212,190,212,142,159,212,212,106,126,159, 169,190,119,119,126,159,142,159,0};// 生日快乐歌节拍表，节拍决定每个音符的演奏长短uchar code SONG_LONG[]= {9,3,12,12,12,24,9,3,12,12,12,24,9,3,12,12,12,12,12,9,3,12,12,12,24,0};// 延时void DelayMS(uint x){uchar t;while(x--) for(t=0;t<120;t++);}// 播放函数void PlayMusic(){ uint i=0,j,k; while(SONG_LONG[i]!=0||SONG_TONE[i]!=0){ //播放各个音符，SONG_LON为拍子长度for(j=0;j<SONG_LONG[i]*20;j++){BEEP=~BEEP;〃SONG_TON延时表决定了每个音符的频率for(k=0;k<SONG_TONE[i]/3;k++);} DelayMS(10);i++;}}void main(){BEEP=0;while(1){PlayMusic(); // 播放生日快乐DelayMS(500); // 播放完后暂停一段时间}精品文档。

利用蜂鸣器和单片机演奏简单的音乐电路设计

利用蜂鸣器和单片机演奏简单的音乐电路设计利用蜂鸣器和单片机演奏简单的音乐实验原理图实验程序/* =========================================================== *//* ----------------------------------------------------------- *//* 曲谱存贮格式 uchar code 数组名{音高，音长，音高，音长....} *//* 音高由三位数字组成： *//* 个位是表示 1~7 这七个音符. *//* 十位是表示音符所在的音区，1-低音，2-中音，3-高音； *//* 百位表示这个音符是否要升半音 0(不写)-不升，1-升半音。

*//* 音长最多由三位数字组成： *//* 个位表示音符的时值，其对应关系是： *//* 数值(n) 0 1 2 3 4 5 6 *//* --------------------------------------------- *//* 几分音符 1 2 4 8 16 32 64 *//* 即：音符=2^n ,这样做的目的是为了节省曲谱的存贮空间。

*//* 十位表示音符的演奏效果(0-2)，0-普通，1-连音，2-顿音。

*//* 百位是符点位，0(不写)-无符点，1-有符点。

*//* ----------------------------------------------------------- */ /* 调用演奏子程序的方法为： *//* play(乐曲数组名,调号,升降八度,演奏速度,开始指针,结束指针) */ /* 调号(0-11)是指乐曲升多少个半音演奏;升降八度(1-3)是指在演奏 */ /* 在哪个八度演奏: 1-降八度,2-不升不降,3-升八度.开始指针(0- ) */ /* 是从哪个音符开始演奏,结束指针是演奏到哪个音符为止. *//* ----------------------------------------------------------- */ //本程序用T0 来产生音调，用T1 产生音长#include <reg51.h>#define uchar unsigned char#define yx 4/5 /* 定义普通音符演奏的长度分率 */#define plen 2 /* 定义晶振的时钟周期(us) */#define uchar unsigned char#define uint unsigned intsbit speaker=P3^5;/* ------------------下面是曲谱 ------------------------------ */uchar code sound[100]={25,2,23,3,25,3,31,1,26,2,31,3,26,3,25,1,25,2,21,3,22,3,23,2,22,3,21,3,22, 0,25,2,23,3,25,3,31,102,27,3,26,2,31,2,25,1,25,2,22,3,23,3,24,102,17,3, 21,0};uchar tc0,tc1,sc0,sc1; /* 音长和音符两个计数器初值暂存 */void play(sound,dh,sj,speed,point1,point2)uchar code sound[]; /* 接受乐曲数组的地址 */uchar speed,sj,dh; /* 速度、八度、调号 */uint point1,point2; /* 乐曲开始、结束指针 */{uint code fftab[12]={262,277,294,311,330,349,369,392,415,440,466,494}; /* 频率表*/uchar code stab[7]={0,2,4,5,7,9,11}; /* 1~7 在频率表中的位置 */uchar code ltab[7]={1,2,4,8,16,32,64};uchar tl,ts,sl,sm,sh,slen,xg,ii,fd;uint point,hz,tc,sc,len,len0,len1,len2,len4,i,ftab[12]; speaker=1;for(i=0;i<12;i++) /* 根据调号及升降八度来计算音符频率 */ {ii=i+dh;if(ii>11){ii=ii-12;ftab[i]=fftab[ii]*2;}elseftab[i]=fftab[ii];if(sj==1) ftab[i]>>=2;if(sj==3) ftab[i]<<=2;}point=point1;ts=sound[point];tl=sound[point+1]; /* 读出第一个音符和它时时值 */tc=65535-10000/plen; /* 算出10ms 的初装值 */tc0=tc%256; /* 计算TL1 应装入的初值 */tc1=tc/256; /* 计算TH1 应装入的初值 */len0=12000/speed; /* 算出1 分音符的长度(几个10ms) */ len4=len0/4; /* 算出4 分音符的长度 */len4=len4-len4*yx; /* 普通音最长间隔标准 */TMOD=0x11;TH1=tc1; TL1=tc0;ET0=1; EA=1;TR0=0; TR1=1;while(point<=point2){sl=ts%10; /* 计算出音符 */sh=ts/100; /* 计算出是否升半 */sm=ts/10%10; /* 计算出高低音 */hz=ftab[stab[sl-1]+sh]; /* 查出对应音符的频率 */if(sl!=0){if (sm==1) hz>>=2; /* 若是低音 */if (sm==3) hz<<=2; /* 若是高音 */sc=(50000/hz)*10/plen; /* 计算脉冲个数 */sc=65536-sc; /* 计算计数器初值 */sc0=sc%256; /* 算出TL0 应装初值 */sc1=sc/256; /* 算出TH0 应装初值 */TH0=sc1; /* 装入初值 */TL0=sc0+12; /* 加12 是对中断延时的补偿 */}slen=ltab[tl%10]; /* 算出是几分音符 */xg=tl/10%10; /* 算出音符类型(0 普通1 连音2 顿音) */fd=tl/100;len=len0/slen; /* 算出连音音符演奏的长度(多少个10ms)*/ if (fd==1) len=len+len/2;if(xg!=1)if(xg==0) /* 算出普通音符的演奏长度 */if (slen<=4)len1=len-len4;elselen1=len*yx;elselen1=len/2; /* 算出顿音的演奏长度 */elselen1=len;if(sl==0) len1=0;len2=len-len1; /* 算出不发音的长度 */if (sl!=0)TR0=1;for(i=len1;i>0;i--) /* 发规定长度的音 */{while(TF1==0);TH1=tc1; TL1=tc0;TF1=0;}}if(len2!=0){TR0=0; speaker=1;for(i=len2;i>0;i--) /* 音符间的间隔 */{while(TF1==0);TH1=tc1; TL1=tc0;TF1=0;}}point+=2; /* 音符指针下移 */ts=sound[point]; tl=sound[point+1]; /* 读出下一个音符和它时时值 */}void yin() interrupt 1 /* 音符发生程序（中断服务程序）*/ {speaker=~speaker;TH0=sc1; TL0=sc0;}//==============================================main(){while(1){play(sound,0,2,60,0,57);play(sound,0,1,60,0,57);play(sound,0,3,60,0,57);play(sound,0,2,40,0,57);play(sound,5,2,60,0,57);play(sound,0,2,80,0,57);}}。

(原创)51单片机C语言程序设计--速学教程实例(进阶篇)之蜂鸣器奏乐

/******************************************************************//*名称：蜂鸣器奏乐演示程序*//*作者：苏涛*//*时间：2011-01-18*//*单位：安徽建筑工业学院电子与信息工程学院*//*07级电子信息工程专业二班*//******************************************************************/#include<reg52.h>//头文件调用，写程序时都要加上#include"SoundPlay.h"/******************************************************************//*名称：延时函数*//*功能：C语言中常用的for循环延时方法*//*延时长短可以通过变量初值来改变*//******************************************************************/void Delay1ms(uint count){uint i,j;for(i=0;i<count;i++)for(j=0;j<120;j++);}/*****************************Music***************************************************/ //挥着翅膀的女孩unsigned char code Music_Girl[]={0x17,0x02,0x17,0x03,0x18,0x03,0x19,0x02,0x15,0x03,0x16,0x03,0x17,0x03,0x17,0x03,0x17,0x03,0x18,0x03,0x19,0x02,0x16,0x03,0x17,0x03,0x18,0x02,0x18,0x03,0x17,0x03,0x15,0x02,0x18,0x03,0x17,0x03,0x18,0x02,0x10,0x03,0x15,0x03,0x16,0x02,0x15,0x03,0x16,0x03,0x17,0x02,0x17,0x03,0x18,0x03,0x19,0x02,0x1A,0x03,0x1B,0x03,0x1F,0x03,0x1F,0x03,0x17,0x03,0x18,0x03,0x19,0x02,0x16,0x03,0x17,0x03,0x18,0x03,0x17,0x03,0x18,0x03,0x1F,0x03,0x1F,0x02,0x16,0x03,0x17,0x03,0x18,0x03,0x17,0x03,0x18,0x03,0x20,0x03,0x20,0x02,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x20,0x03,0x21,0x03,0x20,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x1F,0x03,0x1B,0x03,0x19,0x03,0x19,0x03,0x15,0x03,0x1A,0x66,0x1A,0x03,0x19,0x03,0x15,0x03,0x15,0x03,0x17,0x03,0x16,0x66,0x17,0x04,0x18,0x04,0x18,0x03,0x19,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x20,0x03,0x21,0x03,0x20,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x1F,0x03,0x1B,0x03,0x19,0x03,0x19,0x03,0x15,0x03,0x1A,0x66,0x1A,0x03,0x19,0x03,0x19,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x00,0x1A,0x03,0x1A,0x03,0x1A,0x03,0x1B,0x03,0x1B,0x03,0x1A,0x03,0x19,0x03,0x19,0x02,0x17,0x03,0x15,0x17,0x15,0x03,0x16,0x03,0x17,0x03,0x18,0x03,0x17,0x04,0x18,0x0E,0x18,0x03,0x17,0x04,0x18,0x0E,0x18,0x66,0x17,0x03,0x18,0x03,0x17,0x03,0x18,0x03,0x20,0x03,0x20,0x02,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x20,0x03,0x21,0x03,0x20,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x1F,0x04,0x1B,0x0E,0x1B,0x03,0x19,0x03,0x19,0x03,0x15,0x03,0x1A,0x66,0x1A,0x03,0x19,0x03,0x15,0x03,0x15,0x03,0x17,0x03,0x16,0x66,0x17,0x04,0x18,0x04,0x18,0x03,0x19,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x20,0x03,0x21,0x03,0x20,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x66,0x1F,0x03,0x1B,0x03,0x19,0x03,0x19,0x03,0x15,0x03,0x1A,0x66,0x1A,0x03,0x19,0x03,0x19,0x03,0x1F,0x03,0x1B,0x03,0x1F,0x00,0x18,0x02,0x18,0x03,0x1A,0x03,0x19,0x0D,0x15,0x03,0x15,0x02,0x18,0x66,0x16,0x02,0x17,0x02,0x15,0x00,0x00,0x00}; //同一首歌unsigned char code Music_Same[]={0x0F,0x01,0x15,0x02,0x16,0x02,0x17,0x66,0x18,0x03,0x17,0x02,0x15,0x02,0x16,0x01,0x15,0x02,0x10,0x02,0x15,0x00,0x0F,0x01,0x15,0x02,0x16,0x02,0x17,0x02,0x17,0x03,0x18,0x03,0x19,0x02,0x15,0x02,0x18,0x66,0x17,0x03,0x19,0x02,0x16,0x03,0x17,0x03,0x16,0x00,0x17,0x01,0x19,0x02,0x1B,0x02,0x1B,0x70,0x1A,0x03,0x1A,0x01,0x19,0x02,0x19,0x03,0x1A,0x03,0x1B,0x02,0x1A,0x0D,0x19,0x03,0x17,0x00,0x18,0x66,0x18,0x03,0x19,0x02,0x1A,0x02,0x19,0x0C,0x18,0x0D,0x17,0x03,0x16,0x01,0x11,0x02,0x11,0x03,0x10,0x03,0x0F,0x0C,0x10,0x02,0x15,0x00,0x1F,0x01,0x1A,0x01,0x18,0x66,0x19,0x03,0x1A,0x01,0x1B,0x02,0x1B,0x03,0x1B,0x03,0x1B,0x0C,0x1A,0x0D,0x19,0x03,0x17,0x00,0x1F,0x01,0x1A,0x01,0x18,0x66,0x19,0x03,0x1A,0x01,0x10,0x02,0x10,0x03,0x10,0x03,0x1A,0x0C,0x18,0x0D,0x17,0x03,0x16,0x00,0x0F,0x01,0x15,0x02,0x16,0x02,0x17,0x70,0x18,0x03,0x17,0x02,0x15,0x03,0x15,0x03,0x16,0x66,0x16,0x03,0x16,0x02,0x16,0x03,0x15,0x03,0x10,0x02,0x10,0x01,0x11,0x01,0x11,0x66,0x10,0x03,0x0F,0x0C,0x1A,0x02,0x19,0x02,0x16,0x03,0x16,0x03,0x18,0x66,0x18,0x03,0x18,0x02,0x17,0x03,0x16,0x03,0x19,0x00,0x00,0x00};//两只蝴蝶unsigned char code Music_Two[]={0x17,0x03,0x16,0x03,0x17,0x01,0x16,0x03,0x17,0x03,0x16,0x03,0x15,0x01,0x10,0x03,0x15,0x03,0x16,0x02,0x16,0x0D,0x17,0x03,0x16,0x03,0x15,0x03,0x10,0x03,0x10,0x0E,0x15,0x04,0x0F,0x01,0x17,0x03,0x16,0x03,0x17,0x01,0x16,0x03,0x17,0x03,0x16,0x03,0x15,0x01,0x10,0x03,0x15,0x03,0x16,0x02,0x16,0x0D,0x17,0x03,0x16,0x03,0x15,0x03,0x10,0x03,0x15,0x03,0x16,0x01,0x17,0x03,0x16,0x03,0x17,0x01,0x16,0x03,0x17,0x03,0x16,0x03,0x15,0x01,0x10,0x03,0x15,0x03,0x16,0x02,0x16,0x0D,0x17,0x03,0x16,0x03,0x15,0x03,0x10,0x03,0x10,0x0E,0x15,0x04,0x0F,0x01,0x17,0x03,0x19,0x03,0x19,0x01,0x19,0x03,0x1A,0x03,0x19,0x03,0x17,0x01,0x16,0x03,0x16,0x03,0x16,0x02,0x16,0x0D,0x17,0x03,0x16,0x03,0x15,0x03,0x10,0x03,0x10,0x0D,0x15,0x00,0x19,0x03,0x19,0x03,0x1A,0x03,0x1F,0x03,0x1B,0x03,0x1B,0x03,0x1A,0x03,0x17,0x0D,0x16,0x03,0x16,0x03,0x16,0x0D,0x17,0x01,0x17,0x03,0x17,0x03,0x19,0x03,0x1A,0x02,0x1A,0x02,0x10,0x03,0x17,0x0D,0x16,0x03,0x16,0x01,0x17,0x03,0x19,0x03,0x19,0x03,0x17,0x03,0x19,0x02,0x1F,0x02,0x1B,0x03,0x1A,0x03,0x1A,0x0E,0x1B,0x04,0x17,0x02,0x1A,0x03,0x1A,0x03,0x1A,0x0E,0x1B,0x04,0x1A,0x03,0x19,0x03,0x17,0x03,0x16,0x03,0x17,0x0D,0x16,0x03,0x17,0x03,0x19,0x01,0x19,0x03,0x19,0x03,0x1A,0x03,0x1F,0x03,0x1B,0x03,0x1B,0x03,0x1A,0x03,0x17,0x0D,0x16,0x03,0x16,0x03,0x16,0x03,0x17,0x01,0x17,0x03,0x17,0x03,0x19,0x03,0x1A,0x02,0x1A,0x02,0x10,0x03,0x17,0x0D,0x16,0x03,0x16,0x01,0x17,0x03,0x19,0x03,0x19,0x03,0x17,0x03,0x19,0x03,0x1F,0x02,0x1B,0x03,0x1A,0x03,0x1A,0x0E,0x1B,0x04,0x17,0x02,0x1A,0x03,0x1A,0x03,0x1A,0x0E,0x1B,0x04,0x17,0x16,0x1A,0x03,0x1A,0x03,0x1A,0x0E,0x1B,0x04,0x1A,0x03,0x19,0x03,0x17,0x03,0x16,0x03,0x0F,0x02,0x10,0x03,0x15,0x00,0x00,0x00};/*************************************************************************************/ void main(){InitialSound();while(1){Play(Music_Girl,0,3,360);Delay1ms(500);Play(Music_Same,0,3,360);Delay1ms(500);Play(Music_Two,0,3,360);Delay1ms(500);}}/******************************************************************//*头文件：SOUNDPLAY.H*//*说明：此头文件来源于网络*//******************************************************************//*说明**************************************************************曲谱存贮格式unsigned char code MusicName{音高，音长，音高，音长....,0,0};末尾:0,0表示结束(Important)音高由三位数字组成：个位是表示1~7这七个音符十位是表示音符所在的音区:1-低音，2-中音，3-高音;百位表示这个音符是否要升半音:0-不升，1-升半音。

51单片机通过按键控制蜂鸣器发生详解

单片机开发报告院系：电子工程学院专业：自动化班级：自动化1401学号： 2姓名：赵越指导老师：刘星光2018年 01 月04 日.系统任务按键控制蜂鸣器发声二．电路原理图三．程序设计内容“叮咚”电子门铃实验程序：常有的家用电子门铃在有客人来访时候，假如按压门铃按钮时，室内会发出“叮咚”声音，本实验程序模拟电子门铃的发音，当我们按压实验板上的K1按钮时候，蜂鸣器发出“叮咚”音乐声，是一个比较适用的程序。

使用无源蜂鸣器输出7个基本音阶声音是由物体振动所产生的。

不过因为物体的资料以及振幅、频次不同，而产生不一样的声音。

声音的响度是由振幅决定的，而音调则是由频次决定的，那么我们只要要控制物体振动的频次，就能够发出固定的腔调。

五．汇编程序ORG0000HAJMPSTARTORG 000BH INCM OV 20H ;中止服务TH0,#0D8H,中止计数器加1MOVTL0,#0F0H 12M晶振，形成10毫秒中止RETIORG001BHLJMPINTT1;跳转到T1中止服务程序START: MOV DPTR,#00H;初始化程序MOV A,#00HOBUF1 EQU30HOBUF2 EQU31HOBUF3 EQU32HOBUF4 EQU33HFLAGB BIT00HSTOPB BIT01HMOV SP,#50HMOV TH0,#0D8HMOV TL0,#0F0HMOV TMOD,#21HMOV TH1,#09HMOV TL1,#09HMOV IE,#8AHAJMPLOOPLOOP:JNB P3.2,MUSIC0JNB P3.1,MAINAJMPLOOPMAIN:JBP3.1,MAIN;检测按钮LCALLJBYS10MP3.1,MAIN;延时去颤动SETB MOV MOV MOV MOV CLR CLRJNBTR1OBUF1,#00HOBUF2,#00HOBUF3,#00HOBUF4,#00HFLAGBSTOPBSTOPB,$;按钮有效AJMP START ;发出“叮咚”完成，返回从头检测按钮YS10M: ;10ms延时子程序MOVR6,#20 D1:MOVDJNZDJNZ R7,#100 R7,$R6,D1RETTING:AJMPSTARTINTT1:;准时器T1中止服务程序INCMOVCJNEMOVINCMOVCJNEMOVJBCPLAJMPOBUF3 ;中止服务程序中发出一声“叮咚”响声A,OBUF3A,#100,NEXTOBUF3,#00HOBUF4 A,OBUF4A,#20,NEXT OBUF4,#00H FLAGB,PGSTP FLAGB NEXTPGSTP:SETBCLRSTOPBTR1LJMPINT0RET NEXT:JBINCMOVCJNEMOVCPLLJMP FLAGB,SOU2 OBUF2A,OBUF2A,#04H,INT0RET OBUF2,#00HINT0RETSOU2: INCMOVCJNEMOVCPL OBUF1A,OBUF1A,#05H,INT0RET OBUF1,#00HINT0RET:RETIMUSIC0:JBLCALLJBp3.2,MUSIC0YS10Mp3.2,MUSIC0NOPMOV DPTR,#DAT表头地点送DPTRM OV20H,#0 0H;中止计数器清MOVMAIN2: JNBB,#00H ;表序号清P3.3,TINGCLRAMOVCA,@A+DPTR;查表代替码JZ END0 ;是00H,则结束CJNEA,#0FFH,MUSIC5LJMPMUSIC3MUSIC5:NOPMOV R6,AINC DPTRMOV A,BMOVCA,@A+DPTR;取节拍代码送R7MOV R7,ASETBTR0 MUSIC2: NOP CPL MOV A,R6MOV R3,A;启动计数LCALLDELMOVA,R7CJNEA,20H,MUSIC2;中止计数器(20H)=R7否?MOV 20H,#00HINC DPTRINCBLJMPMAIN2;不等,则持续循环;等于,则取下一代码MUSIC3:;休止100毫秒NOPCLRTR0MOV R2,#0DHMUSIC4:NOPMOV R3,#0FFHLCALLDELDJNZR2,MUSIC4INC DPTRLJMPMAIN2END0:NOPMOV R2,#0FFH;歌曲结束,延时MUSIC6:MOV R3,#00HLCALLDELDJNZR2,MUSIC6CLR TR0LJMPLOOPDEL:NOPDEL3:MOV R4,#03HDEL4:NOPDJNZR4,DEL4NOPDJNZR3,DEL3RETDENG1: MOV R3,#64HDJNZR3,$AJMPMAINDAT:DB 30h,30h,26h,26h,20h,20h,1ch,1ch,1ah,1ah,18h,18h,00hEND六、程序下载及调试步骤：1．点击translate按钮预编译2．点击build 按钮编译3．点击rebuild 按钮编译全部目标4．翻开普中烧录软件5．点击程序下载四．程序流程图开始初始化设置中止程序按键判断Yes中止变电平循环体中止51单片机通过按键控制蜂鸣器发生详解结束判断NoYes结束21 / 2121。

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