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標題: 單片機波形發生器（6種）源程序+仿真電路 [打印本頁]
作者: ziyin    時間: 2019-12-20 14:22
標題: 單片機波形發生器（6種）源程序+仿真電路
波形發生器（6種）源程序+仿真電路


單片機源程序如下:
  1. #include<reg51.h>
  2. #include<absacc.h>
  3. #define uchar unsigned char
  4. #define uint unsigned int
  5. #define DAC0832 XBYTE[0xfffe]

  7. sbit k0=P1^0; //產生方波
  8. sbit k1=P1^1; //產生鋸齒波
  9. sbit k2=P1^2; //產生三角波
  10. sbit k3=P1^3; //產生階梯波
  11. sbit k4=P1^4; //產生正弦波
  12. sbit k5=P1^5;//產生梯形波
  13. uchar mm=0,x=0,y=0;
  14. uchar flag=0;//不同值對應不同波形
  15. uchar code SETTAB[256]={0x80,0x82,0x85,0x88,0x8b,0x8e,0x91,0x94,0x97,0x9a,0x9d,
  16. 0xa0,0xa3,0xa6,0xa9,0xac,0xaf,0xb2,0xb6,0xb9,0xbc,0xbf,0xc2,0xc5,0xc7,0xca,0xcc,0xcf,
  17. 0xd1,0xd4,0xd6,0xd8,0xda,0xdd,0xdf,0xe1,0xe3,0xe5,0xe7,0xe9,0xea,0xec,
  18. 0xee,0xef,0xf1,0xf2,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,
  19. 0xfd,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
  20. 0xfe,0xfd,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf2,0xf1,
  21. 0xef,0xee,0xec,0xea,0xe9,0xe7,0xe5,0xe3,0xe1,0xde,0xdd,0xda,0xd8,0xd6,
  22. 0xd4,0xd1,0xcf,0xcc,0xca,0xc7,0xc5,0xc2,0xbf,0xbc,0xba,0xb7,0xb4,0xb1,
  23. 0xae,0xab,0xa8,0xa5,0xa2,0x9f,0x9c,0x99,0x96,0x93,0x90,0x8d,0x89,0x86,
  24. 0x83,0x80,0x80,0x7c,0x79,0x76,0x72,0x6f,0x6c,0x69,0x66,0x63,0x60,0x5d,
  25. 0x5a,0x57,0x55,0x51,0x4e,0x4c,0x48,0x45,0x43,0x40,0x3d,0x3a,0x38,0x35,
  26. 0x33,0x30,0x2e,0x2b,0x29,0x27,0x25,0x22,0x20,0x1e,0x1c,0x1a,0x18,0x16,
  27. 0x15,0x13,0x11,0x10,0x0e,0x0d,0x0b,0x0a,0x09,0x08,0x07,0x06,0x05,0x04,
  28. 0x03,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  29. 0x00,0x00,0x01,0x02,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,
  30. 0x0d,0x0e,0x10,0x11,0x13,0x15,0x16,0x18,0x1a,0x1c,0x1e,0x20,0x22,0x25,
  31. 0x27,0x29,0x2b,0x2e,0x30,0x33,0x35,0x38,0x3a,0x3d,0x40,0x43,0x45,0x48,
  32. 0x4c,0x4e,0x51,0x55,0x57,0x5a,0x5d,0x60,0x63,0x66,0x69,0x6c,0x6f,0x72,
  33. 0x76,0x79,0x7c,0x80};

  35. void delay(uint ms)
  36. {uchar i;
  37. while(ms--)for(i=0;i<120;i++);}
  38. void sin()         //正弦波發生函數
  39. {DAC0832=SETTAB[y];
  40. x++;y++;}

  42. void fangbo( )    //方波發生函數
  43. {  DAC0832=y;
  44.    x++;
  45.    if(flag==0)
  46.    {y=0xff;
  47.     if(x==128){flag=1;y=0x00;}}//方波+
  48.         else {y=0x00;
  49.     if(x==0){flag=0;y=0xff;}}}//方波-

  51. void sanjiaobo( )          //三角波發生函數
  52. { DAC0832=y;
  53.    x++;
  54.    if(flag==0)
  55.    {y+=2;
  56.     if(x==128){flag=1;y-=2;}}//三角波+
  57.         else {y-=2;
  58.     if(x==0){flag=0;y=0;}}}//三角波-

  60. void juchibo() //鋸齒波發生函數
  61. {DAC0832=y;        y++;}

  63. void jietibo()//階梯波發生函數
  64. {DAC0832=y;
  65. y+=25;}
  66. void tixing( )    //梯形波發生函數
  67. {uint i;
  68. DAC0832=y;

  70. if(flag==0){y+=2;x++;if(x==128){flag=1;y-=2;}}
  71.   else {y-=2;x--;if(x==0){for(i=0;i<5000;i++)y=0x00;flag=0;}}}

  73. void read_key()
  74. {if(k0==0){delay(10);if(k0==0){mm=1;while(k0==0);}}
  75. else if(k1==0){delay(10);if(k1==0){mm=2;while(k1==0);}}
  76.   else if(k2==0){delay(10);if(k2==0){mm=3;while(k2==0);}}
  77.   else if(k3==0){delay(10);if(k3==0){mm=4;while(k3==0);}}
  78.   else if(k4==0){delay(10);if(k4==0){mm=5;while(k4==0);}}
  79.   else if(k5==0){delay(10);if(k5==0){mm=6;while(k5==0);}}}

  81. void main()
  82. {TMOD=0x02;
  83. TH0=TL0=156;
  84. TR0=1;ET0=1;EA=1;
  85. mm=0;
  86. for(;;)read_key();}

  88. void timer0() interrupt 1 using 2
  89. {{switch(mm)
  90.   {case 1:fangbo();break;
  91.    case 2:juchibo();break;
  92.    case 3:sanjiaobo();break;
  93.    case 4:jietibo();break;
  94.    case 5:sin();break;
  95.    case 6:tixing();break;}} }
復制代碼

所有資料51hei提供下載:
波形發生器（6種）.zip (52.42 KB, 下載次數: 116)


作者: 保持沉默    時間: 2019-12-25 11:00
不好用，只顯示一種錯誤波形啊，
作者: 113265    時間: 2019-12-25 13:49
剛好需要謝謝啦
作者: HWL0541    時間: 2019-12-27 12:05
謝謝樓主分享
作者: pangshe    時間: 2019-12-27 16:48
仿真只有一個波形，有錯誤。
作者: 埃斯頓林米    時間: 2020-2-25 18:55
感謝樓主分享
作者: p1364090187    時間: 2020-4-25 04:12
雖然可以參考，但是仿真的只有一個波形，應該是只編寫一個波形的么？



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