51单⽚机播放青花瓷（源码）
1. 蜂鸣器没有特定的引脚，随便定义⼀个就OK。
2. 单⽚机的内部RAM容量⽐较⼩，所以常数数组⼀般放在程序存储区处，以减少RAM数据区的使⽤。
3. ⾳律和谱曲数组是copy⼤佬的。
4. ⽤的T0中断请求
#include <REG51.H>
#define uchar unsigned char
sbit beepIO=P1^5;//定义蜂鸣器端⼝为p1^5，根据单⽚机实际蜂鸣器实际接⼝改变
uchar m,n;//定义4个⼋度每⼋度12分⾳律共48⾳律
uchar code T[49][2]={{0,0},//定义⾳律49个⼆维数组
{0xF9,0x1F},{0xF9,0x82},{0xF9,0xDF},{0xFA,0x37},{0xFA,0x8A},{0xFA,0xD8},{0xFB,0x23},{0xFB,0x68},{0xFB,0xAA},{0xFB,0xE9},{0xFC,0x24},{0xFC,0 x5B},
{0xFC,0x8F},{0xFC,0xC1},{0xFC,0xEF},{0xFD,0x1B},{0xFD,0x45},{0xFD,0x6C},{0xFD,0x91},{0xFD,0xB4},{0xFD,0xD5},{0xFD,0xF4},{0xFE,0x12},{0xFE ,0x2D},
{0xFE,0x48},{0xFE,0x60},{0xFE,0x78},{0xFE,0x86},{0xFE,0xA3},{0xFE,0xB6},{0xFE,0xC9},{0xFE,0xDA},{0xFF,0xEB},{0xFE,0xFA},{0xFF,0x09},{0xFF,0 x17},
{0xFF,0x24},{0xFF,0x30},{0xFF,0x3C},{0xFF,0x47},{0xFF,0x51},{0xFF,0x5B},{0xFF,0x64},{0xFF,0x6D},{0xFF,0x75},{0xFF,0x7D},{0xFF,0x84},{0xFF,0 x8B}
};
uchar code music[][2]={{0,4},//定义曲谱数组，前数为⾳律，后数为⾳符节拍，要换歌改变简谱对应的⾳律号即可
{0,1},{1,1},{3,1},{5,1},{6,1},{8,1},{10,1},{12,1},{13,1},//演⽰超低⾳⼋度 123457671
智慧树歌曲{0,1},{13,1},{15,1},{17,1},{18,1},{20,1},{22,1},{24,1},{25,1},//演⽰低⾳⼋度12345671
{0,1},{25,1},{27,1},{29,1},{30,1},{32,1},{34,1},{36,1},{37,1},//演⽰中⾳⼋度12345671
{0,1},{37,1},{39,1},{41,1},{42,1},{44,1},{46,1},{48,2},//演⽰⾼⾳⼋度 1234567
{0,4},{24,4},{24,4},{21,4},{19,4},{21,4},{14,8},{19,4},{21,4},{24,4},{21,4},{19,16},//记录菊花台简谱歌词：0553236 23532 天青⾊等烟⾬⽽我在等你{0,4},{24,4},{24,4},{21,4},{19,4},{21,4},{12,8},{19,4},{21,4},{24,4},{19,4},{17,16},//简谱歌词：0553235 23521 炊烟袅袅升起隔江千万⾥
{0,4},{17,4},{19,4},{21,4},{24,4},{26,4},{24,4},{22,4},{24,4},{21,4},{21,4},{19,4},{19,16},//简谱歌词：01235654 53322 在平地书刻你房间上的飘影
{0,4},{17,4},{19,4},{17,4},{17,4},{19,4},{17,4},{19,4},{19,4},{21,8},{24,4},{21,4},{21,12},//简谱歌词：就当我为遇见你伏笔胡兵国籍>爱情悠悠药草香下载
{0,4},{24,4},{24,4},{21,4},{19,4},{21,4},{14,8},{19,4},{21,4},{24,4},{21,4},{19,16},//简谱歌词：0553236 23532 天青⾊等烟⾬⽽我在等你
{0,4},{24,4},{24,4},{21,4},{19,4},{21,4},{12,8},{19,4},{21,4},{24,4},{19,4},{17,16},//简谱歌词：0553235 23521 ⽉⾊被打捞起掩盖了结局
{0,4},{17,4},{19,4},{21,4},{24,4},{26,4},{24,4},{22,4},{24,4},{21,4},{21,4},{19,4},{19,12},//简谱歌词：0123 5654 5332 25 322 11 如传世的青花瓷在独⾃美丽
{12,4},{21,8},{19,8},{19,4},{17,20},//简谱歌词：你眼带笑意
{0xFF,0xFF}
};//歌曲结尾标识
void delay(uchar p)//延时函数⽆符号字符型变量
{
my soul your beatsuchar i,j;//定义⽆符号字符型变量J和I
for(; p>0; p--)// 此处P值即主函数的n值节拍个数
for(i=181; i>0; i--)//延时181*181个机器周期约35毫秒，即⼀个1/16节拍
for(j=181; j>0; j--);
}
void T0_int() interrupt 1
{
beepIO=!beepIO;//蜂鸣器翻转发声
TH0=T[m][0];
TL0=T[m][1];
//⾳律延时周期次数码表赋给定时寄存器作为计数初始值，每TH0TL0个机器周期触发蜂鸣器端⼝翻转，演奏出不同⾳符
}
void main()
{
uchar i=0;//定义⽆符号字符型变量i，初始值为0
TMOD=0x01;
EA=1;
ET0=1;//开启T0定时16位⽅式，总中断开启，开启T0外部中断请求
while(1)//开始曲谱演奏，循环⽆限重复
{
m=music[i][0];//将⾳律号赋值给m
n=music[i][1];//将节拍号赋值给n
if(m==0x00)//如果⾳律号为0，
{
TR0=0;
delay(n);
i++;
}//关闭计时器，延迟n拍，将循环数I加1 ，准备读下⼀个⾳符
else if(m==0xFF)//否则如果⾳律数为FF
{
TR0=0;
delay(30);
i=0;
}//开启节拍延时30个1/16节拍，歌曲停顿2秒，将循环数I置0
else if(m==music[i+1][0])// 否则如果把下⼀个⾳律号数给变量m
{
TR0=1;
delay(n);
TR0=0;
i++;
隆重登场
}//定时器0打开延迟n拍，关闭定时器T0，读下⼀个⾳符，循环数加1读下⼀个⾳律else//⾳符若不为零
鱼 歌词{
TR0=1;
delay(n);
i++;
}//打开定时器，延时n个1/16拍，循环数I加1 ，准备演奏下⼀个⾳符
}
}