STC-B学习板蜂鸣器播放音乐

功能：单片机烧录好程序后，按key1按键播放《IF YOU》，再次按key1可暂停播放，按key2可切换歌曲到《国际歌》，再按key3可切换歌曲到《孤勇者》

芯片：STC15F2K61S2

完整工程文件和hex文件在这
提取码：1111

前言：相信大家焊好板子后最喜欢玩的就是蜂鸣器播放音乐，路过每个教室基本都是各种杂音，毕竟这玩意真挺好玩的，于是我就根据老师的代码和谱子写了播放其他歌曲的文件（国际歌是我直接拿往届学长的音乐代码，来凑个数的），说实话这玩意看起来挺简单的，实际上挺难的，还得学一遍乐理知识，然后对着各种拍子和音调不断调试才能得到一个比较理想的状态，但是if you和孤勇者这两首曲子总感觉有些地方不是很完美，但对于摆烂人来说能听就行了。反正也是娱乐娱乐

废话不多说，代码如下：（谱子在最后）

/********************** 文件名称：beep.c 说明：进行音乐播放的例程,按下key1键后开始播放音乐 修改记录： ***********************//********************** 基于STC15F2K60S2系列单片机C语言编程实现 使用如下头文件，不用另外再包含"REG51.H" ***********************/ #include <STC15F2K60S2.h> #define uint unsigned int #define uchar unsigned char sbit beep=P3^4; //蜂鸣器 sbit key1=P3^2; //按键1 sbit key2=P3^3; //按键2 uchar timeh,timel,jindu=0,gequ=0; //定义定时器的重装值 bit flag; //播放标志位 uchar code music1[] = //音乐代码，歌曲为《IF YOU》，格式为: 音符, 节拍, 音符, 节拍, {0x26,0x10,0x25,0x10,0x23,0x10,0x21,0x10,0x22,0x10,0x23,0x10,0x16,0x20,0x22,0x08,0x21,0x08,0x22,0x08,0x21,0x08,0x22,0x08,0x21,0x08,0x22,0x10,0x21,0x08,0x22,0x08,0x22,0x08,0x21,0x08,0x23,0x20,0x26,0x10,0x25,0x10,0x23,0x10,0x21,0x10,0x22,0x10,0x23,0x10,0x16,0x20,0x16,0x08,0x17,0x10,0x21,0x08,0x21,0x08,0x16,0x08,0x21,0x08,0x16,0x08,0x21,0x08,0x22,0x08,0x23,0x08,0x22,0x08,0x22,0x10,0x21,0x08,0x21,0x08,0x21,0x10,0x15,0x08,0x21,0x20,0x31,0x10,0x31,0x08,0x31,0x08,0x27,0x08,0x26,0x08,0x21,0x10,0x32,0x10,0x33,0x10,0x36,0x10,0x35,0x10,0x33,0x10,0x32,0x10,0x31,0x10,0x32,0x30,0x32,0x08,0x31,0x08,0x32,0x08,0x23,0x08,0x32,0x10,0x25,0x24,0x25,0x08,0x32,0x08,0x31,0x08,0x32,0x08,0x33,0x24,0x31,0x08,0x31,0x10,0x32,0x10,0x33,0x10,0x36,0x10,0x35,0x10,0x33,0x10,0x32,0x10,0x31,0x08,0x31,0x08,0x32,0x10,0x31,0x30,0x26,0x08,0x26,0x08,0x31,0x08,0x26,0x08,0x31,0x08,0x31,0x24,0x31,0x08,0x31,0x08,0x32,0x08,0x31,0x08,0x31,0x08,0x31,0x24,0x00,0x10,}; uchar code music2[] = //歌曲为国际歌 {0x25, 0x10, 0x31, 0x18, 0x27, 0x08, 0x32, 0x08, 0x31, 0x08, 0x25, 0x08, 0x23, 0x08, 0x26, 0x18, 0x26, 0x08, 0x24, 0x10, 0x20, 0x08,0x26, 0x08, 0x32, 0x18, 0x31, 0x08, 0x27, 0x08, 0x26, 0x08, 0x25, 0x08, 0x24, 0x08, 0x23, 0x30,0x25, 0x10, 0x31, 0x18, 0x27, 0x08, 0x32, 0x08, 0x31, 0x08, 0x25, 0x08, 0x23, 0x08, 0x26, 0x20, 0x24, 0x08,0x26, 0x08, 0x32, 0x08, 0x31, 0x08, 0x27, 0x10, 0x32, 0x10, 0x34, 0x10, 0x27, 0x10, 0x31, 0x20, 0x31, 0x08, 0x30, 0x08,0x33, 0x08, 0x32, 0x08, 0x27, 0x20, 0x26, 0x08, 0x27, 0x08, 0x31, 0x08, 0x26, 0x08, 0x27, 0x20, 0x25, 0x08,0x25, 0x08, 0x24, 0x08, 0x25, 0x08, 0x26, 0x18, 0x26, 0x08, 0x32, 0x18, 0x31, 0x08, 0x27, 0x20, 0x27, 0x08, 0x20, 0x08,0x32, 0x10, 0x32, 0x18, 0x27, 0x08, 0x25, 0x08, 0x25, 0x08, 0x24, 0x08, 0x25, 0x08, 0x33, 0x20, 0x31, 0x08,0x26, 0x08, 0x27, 0x08, 0x31, 0x08, 0x27, 0x10, 0x32, 0x10, 0x31, 0x10, 0x26, 0x10, 0x25, 0x20, 0x25, 0x08, 0x20, 0x08,0x33, 0x08, 0x32, 0x08, 0x31, 0x20, 0x25, 0x18, 0x23, 0x08, 0x26, 0x20, 0x24, 0x08, 0x20, 0x08,0x32, 0x0c, 0x31, 0x04, 0x27, 0x20, 0x26, 0x10, 0x25, 0x10, 0x25, 0x20, 0x25, 0x08, 0x20, 0x08,0x25, 0x10, 0x33, 0x20, 0x32, 0x10, 0x25, 0x10, 0x31, 0x20, 0x27, 0x18,0x27, 0x08, 0x26, 0x18, 0x25, 0x08, 0x26, 0x10, 0x32, 0x10, 0x32, 0x20, 0x32, 0x08, 0x30, 0x08,0x33, 0x0c, 0x32, 0x04, 0x31, 0x20, 0x25, 0x18, 0x23, 0x08, 0x26, 0x20, 0x24, 0x08, 0x20, 0x08,0x32, 0x0c, 0x31, 0x04, 0x27, 0x20, 0x26, 0x10, 0x25, 0x10, 0x33, 0x30,0x33, 0x10, 0x35, 0x20, 0x34, 0x10, 0x33, 0x10, 0x32, 0x18, 0x33, 0x08, 0x34, 0x10, 0x30, 0x08,0x34, 0x08, 0x33, 0x18, 0x33, 0x08, 0x32, 0x18, 0x32, 0x08, 0x31, 0x30,0x00, 0x00 }; uchar code music3[] = //歌曲为孤勇者 {0x16,0x08,0x17,0x08,0x21,0x08,0x22,0x08,0x17,0x08,0x21,0x08,0x21,0x10,0x21,0x08,0x17,0x08,0x21,0x08,0x22,0x08,0x17,0x08,0x21,0x08,0x21,0x10,0x21,0x08,0x22,0x08,0x23,0x08,0x22,0x08,0x23,0x08,0x22,0x08,0x23,0x10,0x23,0x08,0x22,0x08,0x23,0x10,0x25,0x10,0x23,0x10,0x16,0x08,0x17,0x08,0x21,0x08,0x22,0x08,0x17,0x08,0x21,0x08,0x21,0x10,0x21,0x08,0x17,0x08,0x21,0x08,0x22,0x08,0x17,0x08,0x21,0x08,0x21,0x10,0x21,0x08,0x22,0x08,0x23,0x08,0x22,0x08,0x23,0x08,0x22,0x08,0x23,0x10,0x23,0x08,0x22,0x08,0x23,0x10,0x25,0x10,0x23,0x10,0x25,0x10,0x23,0x14,0x25,0x08,0x23,0x14,0x25,0x08,0x23,0x08,0x25,0x08,0x26,0x08,0x23,0x08,0x25,0x10,0x25,0x08,0x23,0x14,0x25,0x08,0x23,0x14,0x25,0x08,0x23,0x08,0x25,0x08,0x26,0x08,0x23,0x08,0x25,0x10,0x25,0x08,0x25,0x08,0x23,0x08,0x22,0x08,0x22,0x10,0x22,0x10,0x21,0x08,0x23,0x08,0x23,0x08,0x22,0x08,0x22,0x10,0x22,0x10,0x21,0x08,0x21,0x08,0x16,0x20,0x25,0x08,0x25,0x08,0x23,0x08,0x22,0x08,0x22,0x10,0x22,0x10,0x21,0x08,0x23,0x08,0x23,0x08,0x22,0x08,0x22,0x10,0x22,0x10,0x21,0x08,0x21,0x08,0x16,0x20,0x00 }; uchar code quzi[] = //此数组数据为各个音符在定时器中的重装值，第一列是高位，第二列是低位 //时间 {0xf8,0x8c, //低八度，低10xf9,0x5b,0xfa,0x15, //低30xfa,0x67,0xfb,0x04, //低50xfb,0x90,0xfc,0x0c, //低70xfc,0x44, //中央C调0xfc,0xac, //中20xfd,0x09,0xfd,0x34, //中40xfd,0x82,0xfd,0xc8, //中60xfe,0x06,0xfe,0x22, //高八度，高10xfe,0x56,0xfe,0x6e, //高30xfe,0x9a,0xfe,0xc1, //高50xfe,0xe4,0xff,0x03 //高7 }; /********************** 函数名称：void delay(unsigned int xms) 功能描述：延时 入口参数：xms：输入需要延时的毫秒值 出口参数：无 备注：***********************/ void delay(unsigned int xms) {uint i,j;for(i=xms; i>0; i--)for(j=124; j>0; j--); } /********************** 函数名称：uchar quyin(uchar tem) 功能描述：在quzi数组中，找到music数组定义的简谱音符的重装值，并返回其在quzi数组中的位置 入口参数：tem：music数组中定义的简谱音符 出口参数：返回的是tem音符在quzi数组中的位置值 备注：***********************/ uchar quyin(uchar tem) {uchar qudiao,jp,weizhi; //定义曲调，音符和位置qudiao=tem/16; //高4位是曲调值jp=tem%16; //低4位是音符if(qudiao==1) //当曲调值为1时，即是低八度，低八度在quzi数组中基址为0qudiao=0;else if(qudiao==2) //当曲调值为2时，即是中八度，中八度在quzi数组中基址为14qudiao=14;else if(qudiao==3) //当曲调值为3时，即是高八度，高八度在quzi数组中，基址为28qudiao=28;weizhi=qudiao+(jp-1)*2; //通过基址加上音符作为偏移量，即可定位此音符在quzi数组中的位置return weizhi; //返回这一个位置值 } /********************** 函数名称：void playmusic() 功能描述：播放音乐 入口参数：无 出口参数：无 备注：***********************/ void playmusic() {uchar p,m,tem; //m为节拍while(1){if(flag==1) //若播放的标志位为1则播放音乐{if(gequ==0) //歌曲选择位为0，则播放同一首歌{p=music1[jindu];if(p==0x00) //如果碰到结束符,延时1秒,回到开始再来一遍{jindu=0;delay(1000);break;}else if(p==0xff) //若碰到休止符,延时100ms,继续取下一音符{jindu=jindu+1;delay(100);TR0=0;break;}else //正常情况下取音符和节拍{tem=quyin(music1[jindu]); //取出当前音符在quzi数组中的位置值timeh=quzi[tem]; //把音符相应的计时器重装载值赋予timeh和timeltimel=quzi[tem+1];jindu++;TH0=timeh; //把timeh和timel赋予计时器TL0=timel;m=music1[jindu]; //取得节拍jindu++;}TR0=1; //开定时器1delay(m*180); //等待节拍完成, 通过P3^4口输出音频TR0=0; //关定时器1beep=0; //使beep端口置0，起保护蜂鸣器作用}else if(gequ==1) //歌曲选择位为1，则播放小毛驴{p=music2[jindu];if(p==0x00) //如果碰到结束符,延时1秒,回到开始再来一遍{jindu=0;delay(1000);break;}else if(p==0xff) //若碰到休止符,延时100ms,继续取下一音符{jindu=jindu+1;delay(100);TR0=0;break;}else //正常情况下取音符和节拍{tem=quyin(music2[jindu]); //取出当前音符在quzi数组中的位置值timeh=quzi[tem]; //把音符相应的计时器重装载值赋予timeh和timeltimel=quzi[tem+1];jindu++;TH0=timeh; //把timeh和timel赋予计时器TL0=timel;m=music2[jindu]; //取得节拍jindu++;}TR0=1; //开定时器1delay(m*300); //等待节拍完成, 通过P3^4口输出音频TR0=0; //关定时器1beep=0; //使beep端口置0，起保护蜂鸣器作用}else if(gequ==2) //歌曲选择位为2，则播放天空之城{p=music3[jindu];if(p==0x00) //如果碰到结束符,延时1秒,回到开始再来一遍{jindu=0;delay(1000);break;}else if(p==0xff) //若碰到休止符,延时100ms,继续取下一音符{jindu=jindu+1;delay(100);TR0=0;break;}else //正常情况下取音符和节拍{tem=quyin(music3[jindu]); //取出当前音符在quzi数组中的位置值timeh=quzi[tem]; //把音符相应的计时器重装载值赋予timeh和timeltimel=quzi[tem+1];jindu++;TH0=timeh; //把timeh和timel赋予计时器TL0=timel;m=music3[jindu]; //取得节拍jindu++;}TR0=1; //开定时器1delay(m*200); //等待节拍完成, 通过P3^4口输出音频TR0=0; //关定时器1beep=0; //使beep端口置0，起保护蜂鸣器作用}}else //播放标志位不为1时，暂停播放音乐while(flag!=1);} } /********************** 函数名称：void init_sys() 功能描述：系统初始化，功能是配置IO口 入口参数：无 出口参数：无 备注：***********************/ void init_sys() {P0M0=0xff; //设置推挽模式P0M1=0x00;P2M0=0x08;P2M1=0x00;P3M0=0x10;P3M1=0x00;P4M0=0x00;P4M1=0x00;P5M0=0x00;P5M1=0x00; } /********************** 函数名称：void init() 功能描述：定时器和外部中断的初始化 入口参数：无 出口参数：无 备注：***********************/ void init() {TMOD=0x01; //设置定时器0，定时方式1，16位手动重装模式TH0=0xD8; //设置定时初值TL0=0xEF;IE=0x87; // 1000 0111 EA=1,EX0=1,ET0=1,EX1=0;IP=0x02; // 0000 0010 PT0=1; 定时器0优先级高TR0=0; //定时器0开始运行beep=0; //使beep端口置0，起保护蜂鸣器作用 } void main() {init_sys(); //系统初始化init();P0=0x00;key1=1; //两个按键设为输入状态，检测中断key2=1;flag=0; //播放标志位清零while(1){playmusic(); //播放音乐函数} } /********************** 函数名称：void tim1() interrupt 1 功能描述：定时器0中断处理，重新装值，并把beep值取反，产生方波 入口参数：无 出口参数：无 备注：***********************/ void tim1() interrupt 1 //计时器控制频率 {TH0=timeh; //赋初值TL0=timel;beep=~beep; //中断使得beep翻转产生方波 } /********************** 函数名称：void ex1() interrupt 0 功能描述：按下按键1的外部中断，对标志位取反，功能是暂停和播放音乐 入口参数：无 出口参数：无 备注：***********************/ void ex1() interrupt 0 {delay(5);if(key1==0) //判断key1是否按下{delay(5);if(key1==0){while(!key1);flag=~flag; //播放中断位取反，播放或者暂停}} } /********************** 函数名称：void ex2() interrupt 2 功能描述：按下按键2的外部中断，作用为切换歌曲 入口参数：无 出口参数：无 备注：***********************/ void ex2() interrupt 2 {delay(5);if(key2==0) //按键key2按下，切换歌曲{jindu=0; //歌曲的进度清零，从头开始演唱gequ++; //下一曲if(gequ==3) //到达最后一首调到第一首gequ=0;} }

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