标题: C51单片机电子琴与音乐盒设计(世上只有妈妈好) [打印本页]
作者: 加勒比还带    时间: 2018-5-1 16:51
标题: C51单片机电子琴与音乐盒设计(世上只有妈妈好)
单片机音乐盒仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）


单片机源程序如下:
  1. #include<reg51.h>
  2. int code Yinfu[]={63628,63835,64021,64103,64260,64400,64524,64580};
  3. unsigned char duanma[10]={0xc0,0xf9,0xa4,0XB0,0x99,0x92,0x82,0xF8,0x80,0x90};                  
  4. sbit beep = P3^3;
  5. unsigned char KEY;
  6. void delay()
  7. {
  8. int i;
  9. for(i=0;i<240;i++);
  10. }
  11. void play() interrupt 1
  12. {
  13. TH0 = Yinfu[KEY]/256;
  14. TL0 = Yinfu[KEY]%256;

  16. beep = ~beep;
  17. }
  18. unsigned char scan()
  19. {
  20. unsigned char res;
  21. switch(P1)
  22. {
  23. case 0xfe:res=0;P0=duanma[1];break;
  24. case 0xfd:res=1;P0=duanma[2];break;
  25. case 0xfb:res=2;P0=duanma[3];break;
  26. case 0xf7:res=3;P0=duanma[4];break;
  27. case 0xef:res=4;P0=duanma[5];break;
  28. case 0xdf:res=5;P0=duanma[6];break;
  29. case 0xbf:res=6;P0=duanma[7];break;
  30. case 0x7f:res=7;P0=duanma[8];break;
  31. }
  32. return res;
  33. }
  34. void main()
  35. {
  36. TMOD = 0x01;
  37. IE = 0x82;
  38. while(1)
  39. {
  40. P1 = 0xff;
  41. if(P1 != 0xff)
  42. {
  43. delay();
  44. if(P1 != 0xff)
  45. {
  46. KEY = scan();
  47. TR0 = 1;
  48. }
  49. }
  50. else
  51. {
  52. TR0 = 0;
  53. beep = 1;
  54. }
  55. delay();
  56. }
  57. }

复制代码
  1. #include <reg51.h>
  2. sbit speaker=P3^6;
  3. unsigned char timer0h,timer0l,time,led=1,j=0;
  4. unsigned char flagd=0;
  5. //世上只有妈妈好数据表
  6. code unsigned char sszymmh[]={ 6,2,3, 5,2,1, 3,2,2, 5,2,2, 1,3,2, 6,2,1, 5,2,1,
  7. 6,2,4, 3,2,2, 5,2,1, 6,2,1, 5,2,2, 3,2,2, 1,2,1,
  8. 6,1,1, 5,2,1, 3,2,1, 2,2,4, 2,2,3, 3,2,1, 5,2,2,
  9. 5,2,1, 6,2,1, 3,2,2, 2,2,2, 1,2,4, 5,2,3, 3,2,1,
  10. 2,2,1, 1,2,1, 6,1,1, 1,2,1, 5,1,6, 0,0,0
  11. } ;
  12. // 音阶频率表 高八位
  13. code unsigned char FREQH[]={
  14. 0xF2,0xF3,0xF5,0xF5,0xF6,0xF7,0xF8,
  15. 0xF9,0xF9,0xFA,0xFA,0xFB,0xFB,0xFC,0xFC, //1,2,3,4,5,6,7,8,i
  16. 0xFC,0xFD,0xFD,0xFD,0xFD,0xFE,
  17. 0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,
  18. } ;
  19. // 音阶频率表 低八位
  20. code unsigned char FREQL[]={
  21. 0x42,0xC1,0x17,0xB6,0xD0,0xD1,0xB6,
  22. 0x21,0xE1,0x8C,0xD8,0x68,0xE9,0x5B,0x8F, //1,2,3,4,5,6,7,8,i
  23. 0xEE,0x44, 0x6B,0xB4,0xF4,0x2D,
  24. 0x47,0x77,0xA2,0xB6,0xDA,0xFA,0x16,
  25. };
  26. void delay(unsigned char t)
  27. {
  28. unsigned char t1;
  29. unsigned long t2;
  30. for(t1=0;t1<t;t1++)
  31. {
  32. for(t2=0;t2<6000;t2++)
  33. {
  34. ;
  35. }
  36. }
  37. TR0=0;
  38. }
  39. void t0int() interrupt 1
  40. ……………………

  42. …………限于本文篇幅 余下代码请从51黑下载附件…………
复制代码



所有资料51hei提供下载:
单片机期中.rar (77.18 KB, 下载次数: 91)


作者: 学渣0.0    时间: 2018-9-15 12:46
没有proteus文件，图不完整



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