单片机音乐设计.docx

1、单片机音乐设计 单片机音乐设计题 目： 龙的传人 作 者： 焦亚琪_ 一、龙的传人的简谱二、龙的传人的硬件结构：三、龙的传人的程序如下：#include AT89X52.H#define F1 10000 /1/4#define F2 20000 /1/2#define F3 40000 /1/1unsigned char t0_high=0x00; /T0高8位unsigned char t0_low=0x00; /T0低8位unsigned char YH21= 0xF7,0xF8,0xF9,0xF9,0xFA,0xFB,0xFB, 0xFB,0xFC,0xFC,0xFC,0xFD,0xF

2、D,0xFD, 0xFD,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE;unsigned char YL21= 0xD8,0xBC,0x85,0xE5,0x92,0x29,0xB0, 0xEF,0x62,0xC7,0xF5,0x4C,0x97,0xDC, 0xFB,0x34,0x67,0x7D,0xA8,0xCF,0xF1;sbit Q=P27;stop1(void) unsigned int i; TR0=0; for(i=0;i=4700;i+); TR0=1;stop2(void) unsigned int i; TR0=0; for(i=0;i=11400;i+); TR

3、0=1;delay(n) unsigned int i; for(i=0;i=n;i+);void timer0() interrupt 1 /用于产生音符的T0中断服务程序 TH0=t0_high; TL0=t0_low;Q=Q; /取反beep引脚，发声void main(void) TMOD=0X01; /T0方式1 TR0=0; /关闭T0（不发声） TH0=0xFF; TL0=0x00; ET0=1; /允许T0中断 EA=1; /允许总中断 TR0=1; while(1) t0_high=YH13; t0_low=YL13; delay(F3); stop1(); t0_high=

4、YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F3); stop1(); t0_high=YH17; t0_low=YL17; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F2); stop1(); stop2(); /第一节 t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH15

5、; t0_low=YL15; delay(F2); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH13; t0_low=YL13; delay(F3+F3+F3); stop1(); stop2(); /第二节 t0_high=YH13; t0_low=YL13; delay(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); t0_high=YH

6、16; t0_low=YL16; delay(F3); stop1(); t0_high=YH17; t0_low=YL17; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F2); stop1(); stop2(); /第三节 t0_high=YH15; t0_low=YL15; delay(F2); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); t0_high=YH16;

7、t0_low=YL16; delay(F2); stop1(); t0_high=YH17; t0_low=YL17; delay(F3+F3+F3); stop1(); stop2(); /第四节 t0_high=YH13; t0_low=YL13; delay(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F3); stop1(); t0_high=YH17

8、; t0_low=YL17; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F2); stop1(); stop2(); /第五节 t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH13; t0_low=YL13; delay(F3+F3+F3); stop1(); stop2(); /

9、第六节 t0_high=YH14; t0_low=YL14; delay(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); stop2(); /第七节 t0_high=YH13; t0_low=YL13; delay(F3); stop1();

10、t0_high=YH13; t0_low=YL13; delay(F2); stop1(); t0_high=YH12; t0_low=YL12; delay(F2); stop1(); t0_high=YH13; t0_low=YL13; delay(F3+F3+F3); stop1(); stop2(); /第八节 t0_high=YH17; t0_low=YL17; delay(F3); stop1(); t0_high=YH17; t0_low=YL17; delay(F3); stop1(); t0_high=YH17; t0_low=YL17; delay(F3); stop1()

11、; t0_high=YH16; t0_low=YL16; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); stop2(); /第九节 t0_high=YH16; t0_low=YL16; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F2); stop1(); t0_high=YH17; t0_low=YL17; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F3+F3+F3); stop1

12、(); stop2(); /第十节 t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH16; t0_low=YL16; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); stop2(); /第十一节 t0_high=YH14; t0_low=YL14; delay

13、(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); t0_high=YH14; t0_low=YL14; delay(F3+F3+F3); stop1(); stop2(); /第十二节 t0_high=YH17; t0_low=YL17; delay(F3); stop1(); t0_high=YH17; t0_low=YL17; delay(F3); stop1(); t0_high=YH17; t0_low=YL17; de

14、lay(F3); stop1(); t0_high=YH16; t0_low=YL16; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F2); stop1(); stop2(); /第十三节 t0_high=YH16; t0_low=YL16; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay(F2); stop1(); t0_high=YH17; t0_low=YL17; delay(F2); stop1(); t0_high=YH16; t0_low=YL16; delay

15、(F3+F3+F3); stop1(); stop2(); /第十四节 t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); t0_high=YH15; t0_low=YL15; delay(F3); stop1(); t0_high=YH14; t0_low=YL14; delay(F2); stop1(); stop2(); /第十五节 t0_high=YH13;

16、t0_low=YL13; delay(F2); stop1(); t0_high=YH13; t0_low=YL13; delay(F2); stop1(); t0_high=YH12; t0_low=YL12; delay(F2); stop1(); t0_high=YH13; t0_low=YL13; delay(F3+F3+F3); stop1(); stop2(); /第十六节 TR0=0; while(1); 四、单片机发声原理1、用单片机产生音频脉冲 音频脉冲激音符发出各种不同的声音，通过计算音频的周期可以得出频率的脉冲。首先算出某一音频的周期（1/频率），将此音频周期除以2，即为半周期的时间，利用定时器计时这半个周期，如到半个周期时间就将输出脉冲的I/O反相。重复此计时操作，每当到半周期时间就输出脉冲的I/O反相，这样就可以得到音频的脉冲。2、用单片机实现音乐的节拍 音符节拍依靠延时程序来实现，各调1/4节拍的延时为多少。3、于蜂鸣器并联的发光二极管会与蜂鸣器同步的亮灭，表明蜂鸣器的工作状态。