基于51单片机实现的音乐盒播放器

1、学士学位毕业设计（论文） 论文题目 学生姓名：学生姓名： 指导教师：指导教师： 所在学院：所在学院：信息技术学院 专专 业：业：计算机科学与技术 中国大庆 2007 年 6 月 黑龙江八一农垦大学黑龙江八一农垦大学 本科毕业设计（论文）任务书本科毕业设计（论文）任务书 学生姓名所在班级导师姓名导师职称 论文题目 题目 分类 1应用与非应用类：工程 科研 教学建设 理论分析模拟 2软件与软硬结合类：软件硬件软硬结合非软硬件 （1、2 类中必须各选一项适合自己题目的类型在内打） 主要研究内容及指标： 主要参考文献： 1(英)ian graham. object-oriented methods:

2、principles uchar i,timecount=0,timesec=0,timemin=0,timecheck=0; char r0=2; sbit beepio=p21; typedef unsigned char byte; typedef unsigned int word; typedef bit bool ; sbit rs= p16;/ sbit rw = p17;/rw 东北大学课程设计 sbit ep = p27;/lode sbit pausekey=p11; uchar k,q,f; uchar code dis1 =ai qing mai mai;/ uchar

3、 code dis2 = ji gong; uchar code dis3 = duan qiao can ;/17 uchar code dis33 = xue ; uchar code dis4 = dao jian ru meng; uchar code dis5 =liang zhi hu die ; uchar code dis6 = muo li hua; uchar code dis7 =qing hua ci ; uchar code dis8 = sheng lin kuang ;/ uchar code dis88 = xiang qu ; uchar code dis9

4、=sheng ri kuai le ; /16 uchar code dis10 = xing nian hao ;/14 uchar code dis11 =zhu ba jie qu ; uchar code dis1111 = xi fu ; uchar code dis222 = welcome! ; uchar code t492=0,0, 0 xf8,0 x8b,0 xf8,0 xf2,0 xf9,0 x5b,0 xf9,0 xb7,0 xfa,0 x14,0 xfa,0 x6 6,0 xfa,0 xb9,0 xfb,0 x03,0 xfb,0 x4a,0 xfb,0 x8f,0

5、xfb,0 xcf,0 xfc, 0 x0b, 0 xfc,0 x43,0 xfc,0 x78,0 xfc,0 xab,0 xfc,0 xdb,0 xfd,0 x08,0 xfd,0 x3 3,0 xfd,0 x5b,0 xfd,0 x81,0 xfd,0 xa5,0 xfd,0 xc7,0 xfd,0 xe7,0 xfe, 0 x05, 0 xfe,0 x21,0 xfe,0 x3c,0 xfe,0 x55,0 xfe,0 x6d,0 xfe,0 x84,0 xfe,0 x9 9,0 xfe,0 xad,0 xfe,0 xc0,0 xfe,0 x02,0 xfe,0 xe3,0 xfe,0

6、xf3,0 xff, 0 x02, 0 xff,0 x10,0 xff,0 x1d,0 xff,0 x2a,0 xff,0 x36,0 xff,0 x42,0 xff,0 x4 c,0 xff,0 x56,0 xff,0 x60,0 xff,0 x69,0 xff,0 x71,0 xff,0 x79,0 xff, 0 x81 ; uchar code music12=0,4, / 1 爱情买卖 22,4,22,4,17,4,15,4,15,4,17,12, 15,4,15,2,17,2,15,4,13,4,13,4,15,12,0,4, 20,4,20,4,20,4,17,4,20,4,20,

7、4,20,4,17,4, 22,4,17,4,17,4,15,4,15,4,17,12, 22,4,22,4,17,4,15,4,15,4,17,12, 15,4,15,2,17,2,15,4,13,4,13,4,15,12, 20,4,20,4,20,2,17,2,17,4,20,4,20,4,20,2,17,2,17,2, 17,2, 24,4,20,4,20,2,17,2,17,4,20,4,22,12, 东北大学课程设计 17,4,22,4,25,4,25,4,17,4,22,4,25,8, 24,4,22,2,24,2,22,4,20,4,15,4,17,12, 15,4,15,4,

8、15,4,10,4,15,4,17,4,20,8, 17,4,24,4,24,4,20,4,15,4,17,12, 17,4,22,4,25,4,25,4,17,4,22,4,25,8, 29,4,27,2,29,2,27,4,25,4,25,4,27,12, 29,4,29,2,27,4,25,4,27,6,27,2,25,4,24,4, 20,4,20,2,17,2,20,4,20,2,22,2,22,16, 0 xff,0 xff; uchar code music22=0,4, /2 济公 /*鞋儿破*/ 16,6,19,2,19,6,16,2,14,6,0,10,16,6,19,2,

9、19,6,16,2, 14,8,0,8, 26,8,21,6,24,2,23,6,21,2,19,8,21,16,0,8, /*你笑我*/ 16,6,19,2,19,6,16,2,14,8,0,8,26,8,21,6,23,2,21,14, /*一把扇儿*/ 24,6,23,2,21,6,19,2,16,6,14,2,13,8,14,16,0,4, /*南无阿弥陀佛*/ 19,6,19,2,21,6,21,2,23,8,21,4,0,4,19,6,19,2,16,6, 19,2,16,8,14,6,0,4, 19,6,19,2,21,6,21,2,23,8,21,4,0,4,19,6,19,2

10、,16,6, 19,2,16,8,14,6,0,4, 26,16,21,4,26,4,21,4,26,16,21,4,26,16,0,4, /*无烦无恼*/ 16,8,16,8,14,8,16,8,21,4,26,4,21,4,26,4,0,8,16,8, 16,8,14,8,16,8,21,4,26,4,21,4,26,4,0,8, /走啊走乐啊乐 19,8,19,6,21,2,16,8,0,8,19,6,21,2,19,6,21,2,16,8, 0,8, /哪有不平哪有我 21,8,26,8,21,4,24,12,23,6,21,2,19,8,21,16, /哪有不平哪有我 14,4,21

11、,4,14,4,19,4,16,6,14,2,13,8,14,16, 0 xff,0 xff; uchar code music32=0,4,/3 断桥残雪 27,4,19,4,19,4,27,4,26,4,26,2,27,2,24,8, 22,4,17,4,24,4,22,4,19,16, 15,4,12,4,12,4,15,4,17,8,19,8, 26,6,26,2,26,4,24,4,24,4,19,4,19,8, 27,4,19,4,19,4,27,4,26,4,26,2,27,2,24,6,24,2, 22,4,17,4,24,4,22,4,19,16, 15,4,12,4,12,

12、4,15,4,17,8,19,8,19,6,19,2,19,4,17,4, 14,4,14,4,14,4,7,4,12,24, 东北大学课程设计 0 xff,0 xff; uchar code music42=0,4,/4 刀剑如梦 16,12,23,16,21,4,23,4,21,4,19,12,0,8,19,4,19,4,19, 4,18,4,16,8,14,4,16,16,0,16, 16,12,28,16,26,4,28,4,26,4,23,8,0,16, 21,4,21,4,21,4,21,4,19,8,16,4,18,16,0,12, 16,12,23,16,21,4,23,4,2

13、1,4,19,8,0,16, 19,4,19,4,19,4,18,4,16,8,14,4,16,16,0,12, 16,12,28,16,26,4,28,4,26,4,23,16,0,12, 28,4,28,4,28,4,30,4,28,8,26,4,28,24,0,12, 28,4,28,2,26,2,23,4,23,4,28,4,28,2,26,2,28,4,31,4, 26,6,23,2,26,4,28,4,26,16, 21,4,21,2,19,2,16,4,16,4,21,4,21,2,19,2,21,4,23,4, 19,6,16,2,19,4,16,4,14,16, 28,4,2

14、8,2,26,2,23,4,23,4,28,4,28,2,26,2,28,4,28,4, 31,4,31,2,28,2,26,4,26,4,31,4,31,2,26,2,31,4,31,4, 0,4,31,4,31,4,31,4,30,4,28,8,26,4,28,24, 28,4,28,2,26,2,23,4,23,4,28,4,28,2,26,2,28,4,31,4, 26,6,23,2,26,4,28,4,26,16, 21,4,21,2,19,2,16,4,16,4,21,4,21,2,19,2,21,4,23,4, 19,6,16,2,19,4,16,4,14,16, 28,4,28

15、,2,26,2,23,4,23,4,28,4,28,2,26,2,28,4,28,4, 31,4,31,2,28,2,26,4,26,4,31,4,31,2,26,2,31,4,31,4, 0,4, 31,4,31,4,31,4,30,4,28,8,26,4,28,20, 0,4,31,4,31,4,31,4,30,4,28,8,26,4,28,24, 0 xff,0 xff; uchar code music52=0,4, /5 两只蝴蝶 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、,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, 8,21,4,23,4,21,4,19,4,16,4,16,2,19,2,19,2

17、4,0,20, 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, 0 xff,0 xff; 东北大学课程设计 uchar code music62=0,4,/6 茉莉花 21,8,21,4,24,4

18、,26,4,29,4,29,4,26,4,24,8,24,4,26,4, 24,16, 21,8,21,4,24,4,26,4,29,4,29,4,26,4,24,8,24,4,26,4, 24,16, 24,8,24,8,24,8,21,4,24,4,26,8,26,8,24,16, 21,8,19,4,21,4,24,8,21,4,19,4,17,8,17,4,19,4,17,16, 21,4,19,4,17,4,21,4,19,12,21,4, 24,8,26,4,29,4,24,16, 19,8,21,4,24,4,19,4,21,4,17,4,14,4,12,16,14,8,17,8

19、, 19,12,21,4,17,4,19,4,17,4,14,4,12,24,0,8, 0 xff,0 xff; uchar code music72=0,4,/7 青花瓷 0,4,24,4,24,4,21,4,19,4,21,4,14,8,19,4,21,4,24,4, 21,4,19,16,0,4,24,4,24,4,21,4,19,4,21,4,12,8,19,4, 21,4,24,4,19,4,17,16,0,4,17,4,19,4,21,4, 24,4,26,4,24,4,22,4,24,4,21,4,21,4,19,4,19,16,0,4, 17,4,19,4,17,4,17,4,

20、19,4,17,4,19,4,19,4,21,8,24,4, 21,4,21,12,0,4,24,4,24,4,21,4,19,4,21,4,14,8,19,4, 21,4,24,4,21,4,19,16,0,4,24,4,24,4,21,4, 19,4,21,4,12,8,19,4,21,4,24,4,19,4,17,16,0,4,17,4, 19,4,21,4,24,4,26,4,24,4,22,4,24,4,21,4,21,4,19,4, 19,12,12,4,21,8,19,4,19,8,17,16, 0 xff,0 xff; uchar code music82=0,4, /8 森林

21、狂想曲 14,4,17,4,21,4,24,4,21,8,21,4,19,4,21,8,21,4,19,4, 21,8,14,4,16,4,17,4,21,4,19,4,17,4,14,8,12,8,9,24, 14,4,17,4,21,4,24,4,21,8,21,4,19,4,21,8,21,4,19,4, 21,8,14,4,16,4,17,4,21,4,19,4,17,4,14,8,12,8,14,24, 14,4,16,4, 17,4,19,4,21,4,22,4,24,8,22,4,21,4,19,8,19,4,21,4, 19,16,14,4,16,4,17,4,19,4,21,

22、8,16,4,14,4,16,24,14,4, 16,4, 17,4,19,4,21,4,22,4,24,8,22,4,21,4,19,8,19,4,21,4, 19,8,14,4,16,4,17,4,21,4,19,4,17,4,14,8,12,8,14,24, 21,8,26,16,24,8,21,4,24,4,26,16,24,8,21,4,19,4,17, 4,14,4,17,4,19,4,21,8,21,4,19,4, 21,24,21,8,26,16,24,8,21,4,24,4,26,24,24,8,21,4,19,4 ,17,4,14,4,17,4,19,4,21,8, 26,

23、4,24,4,26,24, 0 xff,0 xff; uchar code music92=0,4,/9 生日愉乐 东北大学课程设计 17,6,17,2,19,8,17,8,22,8,21,16, 17,6,17,2,19,8,17,8,24,8,22,16,17,6,17,2,29,8,26,8, 22,8,21,8,19,8,27,6,27,2,26,8,22,8,24,8,22,16, 0 xff,0 xff; uchar code music102=0,4, /10 新年好 19,4,19,4,19,8,14,8,23,4,23,4,23,8,19,8, 19,4,23,4,26,8,

24、26,8,24,4,23,4,21,16,21,4,23,4,24,8, 24,8, 23,4,21,4,23,8,19,8,19,4,23,4,21,8,14,8,18,4,21,4, 19,16, 0 xff,0 xff; uchar code music112=0,4, /11 猪八戒娶媳妇 22,8,29,6,32,2,29,4,22,4,25,8,22,2,25,2,22,2,25,2, 29,8,29,2,27,2,29,2,25,2,22,8, 29,6,32,2,34,4,34,4,34,4,29,4,32,8, /第二行 29,2,32,2,29,2,32,2,34,4,34

25、,4,34,4,29,4,32,8, 32,4,22,4,32,4,22,4,29,4,29,4,25,8, 27,8,27,8,27,4,25,2,27,2,29,4,32,4, /第三行原版 34,8,41,8,29,8,41,8,29,4,41,4,29,4,41,4, 29,8,41,8,0,2,27,8,27,8,27,4,25,2,27,2,29,4,32,4, 34,12, 0 xff,0 xff; uchar timetable =00:00; void delay(uchar p) uchar i,j; for(;p0;p-) for(i=181;i0;i-) for(j=1

26、81;j0;j-); /*.lcd 液晶.*/ /*.lcd 液晶.*/ bool lcd_bz() / 测试 lcd 忙碌状态 bool result; rs = 0; rw = 1; ep = 1; _nop_(); _nop_(); _nop_(); 东北大学课程设计 _nop_(); result = (bool)(p0 ep = 0; return result; void lcd_wcmd(byte cmd) / 写入指令数据到 lcd while(lcd_bz(); rs = 0; rw = 0; ep = 0; _nop_(); _nop_(); p0 = cmd; _nop_

27、(); _nop_(); _nop_(); _nop_(); ep = 1; _nop_(); _nop_(); _nop_(); _nop_(); ep = 0; void lcd_pos(byte pos) /设定显示位置 lcd_wcmd(pos | 0 x80); void lcd_wdat(byte dat) /写入字符显示数据到 lcd while(lcd_bz(); rs = 1; rw = 0; ep = 0; p0 = dat; _nop_(); _nop_(); _nop_(); _nop_(); ep = 1; 东北大学课程设计 _nop_(); _nop_(); _no

28、p_(); _nop_(); ep = 0; void lcd_init() /lcd 初始化设定 lcd_wcmd(0 x38);/ delay(1); lcd_wcmd(0 x0c);/ delay(1); lcd_wcmd(0 x06);/ delay(1); lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); /*.lcd 液晶.*/ void pause() uchar i,j; for(i=150;i0;i-) for(j=150;j0;j-); /*.键盘扫描.*/ void timecount_init() interrupt 3 th1=(6553

29、5-45872)/256; tl1=(65535-45872)%256; timecount+; if(timecount=20) timesec+; timecount=0; if(timesec=60) timesec=0; timemin+; 东北大学课程设计 void adfa() interrupt 0 timesec=0; timemin=0; r0+; delay(5); if(r011) r0=11; void adfii() interrupt 2 if(pausekey=0) beepio=0; while(pausekey=0); while(pausekey=1); w

30、hile(pausekey=0); delay(8); else timesec=0; timemin=0; r0-; delay(5); if(r0=0) r0=1; void t0_int() interrupt 1 beepio=!beepio; th0=tm0; tl0=tm1; void zhuanhuan() timetable3=timesec/10+0; timetable4=timesec%10+0; timetable2=:; timetable0=timemin/10+0; timetable1=timemin%10+0; 东北大学课程设计 /*.时间显示函数 .*/ v

31、oid timedis() if(timecheck!=timesec) timecheck=timesec; zhuanhuan(); lcd_pos(0 x49); lcd_wdat(timetable0); lcd_wdat(timetable1); lcd_wdat(timetable2); lcd_wdat(timetable3); lcd_wdat(timetable4); void main() uchar i=0,lcd_check=0; tmod=0 x11; th1=(65535-45872)/256; tl1=(65535-45872)%256; px0=1; px1=1

32、; ex0=1; ex1=1; ea=1; et0=1; et1=1; tr1=1; pausekey=1; lcd_init(); while(1) if(r0=0) delay(1); lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis1i != 0) / 显示字符welcome! lcd_wdat(dis222i); 东北大学课程设计 i+; if(r0=1) timedis(); if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0

33、);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis1i != 0) / 显示字符welcome! lcd_wdat(dis1i); i+; m=music1i0;n=music1i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music1i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;delay(n);i+; if(r0=2) timedis(); if(

34、lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis2i != 0) / 显示字符welcome! lcd_wdat(dis2i); i+; 东北大学课程设计 m=music2i0;n=music2i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music

35、2i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;delay(n);i+; if(r0=3) timedis(); if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis3i != 0) / 显示字符welcome! lcd_wdat(dis3i); i+; lcd_pos(0 x41);/ 设置显示位置为第二行第二 个字符 i = 0; while(dis2

36、i != 0) lcd_wdat(dis33i);/ 显示字符 www.prechin.com i+; m=music3i0;n=music3i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music3i+10) tr0=1;delay(n);tr0=0;pause();i+; 东北大学课程设计 else tr0=1;delay(n);i+; if(r0=4) timedis(); if(lcd_check!=r0) lcd_wcmd

37、(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis4i != 0) / 显示字符welcome! lcd_wdat(dis4i); i+; m=music4i0;n=music4i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;/ else if(m=music4i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;d

38、elay(n);i+; if(r0=5) timedis(); if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis5i != 0) / 显示字符welcome! lcd_wdat(dis5i); i+; m=music5i0;n=music5i1; 东北大学课程设计 if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;ti

39、mesec=0;timemin=0;/ else if(m=music5i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;delay(n);i+; if(r0=6) timedis(); if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis6i != 0) / 显示字符welcome! lcd_wdat(dis6i); i+; m=music6i0;n=mus

40、ic6i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music6i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;delay(n);i+; if(r0=7) timedis(); if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符

41、 i = 0; 东北大学课程设计 while(dis7i != 0) / 显示字符welcome! lcd_wdat(dis7i); i+; m=music7i0;n=music7i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music7i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;delay(n);i+; if(r0=8) timedis(); if(lcd_check!=r0

42、) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis8i != 0) / 显示字符welcome! lcd_wdat(dis8i); i+; m=music8i0;n=music8i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music8i+10) tr0=1;delay(n);

43、tr0=0;pause();i+; else tr0=1;delay(n);i+; if(r0=9) timedis(); 东北大学课程设计 if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis9i != 0) / 显示字符welcome! lcd_wdat(dis9i); i+; m=music9i0;n=music9i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m

44、=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music9i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;delay(n);i+; if(r0=10) timedis(); if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1); lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis10i != 0) / 显示字符welcome! lcd_w

45、dat(dis10i); i+; m=music10i0;n=music10i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay(30);i=0;timesec=0;timemin=0;/ else if(m=music10i+10) tr0=1;delay(n);tr0=0;pause();i+; 东北大学课程设计 else tr0=1;delay(n);i+; if(r0=11) timedis(); if(lcd_check!=r0) lcd_wcmd(0 x01);/清除 lcd 的显示内容 delay(1);

46、 lcd_check=r0; lcd_pos(0);/ 设置显示位置为第一行的第 5 个字符 i = 0; while(dis11i != 0) / 显示字符welcome! lcd_wdat(dis11i); i+; lcd_pos(0 x41);/ 设置显示位置为第二行第二 个字符 i = 0; while(dis2i != 0) lcd_wdat(dis1111i);/ 显示字符 www.prechin.com i+; m=music11i0;n=music11i1; if(m=0 x00) tr0=0;delay(n);i+;/ else if(m=0 xff) tr0=0;delay

47、(30);i=0;timesec=0;timemin=0;/ else if(m=music11i+10) tr0=1;delay(n);tr0=0;pause();i+; else tr0=1;delay(n);i+; 东北大学课程设计 参考文献参考文献 1马忠梅,籍顺心,张凯,马岩.单片机的 c 语言应用程序设计.北京航空航天大 学出版社.2003 年 2李朝青.单片机原理及接口技术.北京航空航天大学出版社.1998 年 3. 赵建领.51 系列单片机开发宝典.电子工业出版社.2007 年 致谢致谢 本次课程设计全部工作是在老师悉心指导下完成的。老师严谨的治学态度， 渊博的学识，身体力行的

48、作风使我们受益匪浅。在整个课题研究期间，方案实 施，材料查找，课程设计的编写，protel 原理图绘制和校对，一直到程序的编 写和调试,无不凝聚着老师辛勤的汗水与殷切的关怀。在此，谨向老师致以最真 挚的谢意！ 衷心感谢在课程设计期间给予我们组帮助的所有同学！ 东北大学课程设计 心得体会心得体会 历时四天的课程设计结束了，我收获了很多在课堂上无法学到的知识，不 仅是硬件发设计能力，软件的编程能力也得到了大幅度的提高，可谓受益匪浅。 本次课程设计的题目是音乐播放器，其要求是运用 c51 语言进行编程，实现可 以播放十首歌曲，通过数字键进行控制播放歌曲的曲目，并且在 lcd 液晶显示 器上显示播放歌曲的曲名和滚动歌词，并且用一个开关键控制歌曲的播放。 刚拿到这个题目时，我们觉得挺简单，但当我们着手做的时候，却毫无头 绪。在 lcd 液晶显示器上显示歌曲名还比较容易，要加上滚动歌词很难。我们 在网络上下载了一些关于用单片机设计音乐播发器的内容。对课题有了大体的 了解。之后