標(biāo)題: 單片機+DAC0832產(chǎn)生波形程序 通過按鍵選擇 Proteus仿真 [打印本頁]
作者: 范小爺    時間: 2021-11-28 22:44
標(biāo)題: 單片機+DAC0832產(chǎn)生波形程序 通過按鍵選擇 Proteus仿真
上篇的升級版！proteus仿真圖和代碼：



單片機源程序如下:

  2. #include <reg51.h>
  3. #include <intrins.h>
  4. #include<ABSACC.H>         
  5. #define uchar unsigned char
  6. #define  data_OUT  XBYTE[0x7FFF]
  7. char code dat[]={
  8.      0x80,0x83,0x86,0x89,0x8D,0x90,0x93,0x96,0x99,0x9C,0x9F,0xA2,0xA5,0xA8,0xAB,0xAE,
  9.      0xB1,0xB4,0xB7,0xBA,0xBC,0xBF,0xC2,0xC5,0xC7,0xCA,0xCC,0xCF,0xD1,0xD4,0xD6,0xD8,
  10.      0xDA,0xDD,0xDF,0xE1,0xE3,0xE5,0xE7,0xE9,0xEA,0xEC,0xEE,0xEF,0xF1,0xF2,0xF4,0xF5,
  11.      0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFD,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  12.      0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFD,0xFD,0xFC,0xFB,0xFA,0xF9,0xF8,0xF7,0xF6,
  13.      0xF5,0xF4,0xF2,0xF1,0xEF,0xEE,0xEC,0xEA,0xE9,0xE7,0xE5,0xE3,0xE1,0xDF,0xDD,0xDA,
  14.      0xD8,0xD6,0xD4,0xD1,0xCF,0xCC,0xCA,0xC7,0xC5,0xC2,0xBF,0xBC,0xBA,0xB7,0xB4,0xB1,
  15.      0xAE,0xAB,0xA8,0xA5,0xA2,0x9F,0x9C,0x99,0x96,0x93,0x90,0x8D,0x89,0x86,0x83,0x80,
  16.      0x80,0x7C,0x79,0x76,0x72,0x6F,0x6C,0x69,0x66,0x63,0x60,0x5D,0x5A,0x57,0x55,0x51,
  17.      0x4E,0x4C,0x48,0x45,0x43,0x40,0x3D,0x3A,0x38,0x35,0x33,0x30,0x2E,0x2B,0x29,0x27,
  18.      0x25,0x22,0x20,0x1E,0x1C,0x1A,0x18,0x16,0x15,0x13,0x11,0x10,0x0E,0x0D,0x0B,0x0A,
  19.      0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
  20.      0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
  21.      0x0A,0x0B,0x0D,0x0E,0x10,0x11,0x13,0x15,0x16,0x18,0x1A,0x1C,0x1E,0x20,0x22,0x25,
  22.      0x27,0x29,0x2B,0x2E,0x30,0x33,0x35,0x38,0x3A,0x3D,0x40,0x43,0x45,0x48,0x4C,0x4E,
  23.      0x51,0x55,0x57,0x5A,0x5D,0x60,0x63,0x66,0x69,0x6C,0x6F,0x72,0x76,0x79,0x7C,0x7E
  24. };
  25. bit flag=0;
  26.   void delay(unsigned  int N)  
  27.   {
  28.   int i;
  29.   for(i=0;i<N;i++);
  30.   }

  32. void conversion_once_0832(unsigned char out_data)
  33.            {
  34.            data_OUT=out_data; //輸出數(shù)據(jù)
  35.            delay(10);         //延時等待轉(zhuǎn)換
  36.             }
  37. uchar  keyscan()
  38. {
  39. uchar key;
  40. if(P1!=0xff)
  41.   {
  42.    delay(61);
  43.    key=P1;
  44.    if(key!=0xff)
  45.     flag=~flag;
  46.     return(key);
  47.   }

  49. }
  50. void triangle()
  51. {
  52.   uchar k;
  53.   for(k=0;k<255;k++)
  54.     conversion_once_0832(k);
  55.   for(;k>0;k--)
  56.      conversion_once_0832(k);
  57. }
  58. void square()
  59. {
  60. conversion_once_0832(0xff);
  61. delay(1000);
  62. conversion_once_0832(0x00);
  63. delay(1000);

  65. }
  66. void juchibo()
  67. {
  68.   uchar j;
  69.   for(j=0;j<255;j++)
  70.    conversion_once_0832(j);
  71. }
  72. void sin()
  73. {
  74. uchar i;
  75. for(i=0;i<255;i++)
  76.    {
  77.     conversion_once_0832(dat[i]);
  78.    }
  79. }
  80. void main()
  81. {
  82. uchar temp;
  83. while(1)
  84.   {
  85.    temp=keyscan();
  86.    switch(temp)
  87.      {
  88.            case 0xfe: do{
  89.                                     triangle();
  90.                                         }while(keyscan()&&(flag==1));break;
  91.            case 0xfd: do{
  92.                                     square();
  93.                                         }while(keyscan()&&(flag==1));break;
  94.            case 0xfb: do{
  95.                                     juchibo();
  96.                                         }while(keyscan()&&(flag==1));break;
  97.        case 0xf7: do{
  98.                                     sin();
  99.                                         }while(keyscan()&&(flag==1));break;
  100.            default: break;
  101.          }
  102.   }

  104. }
  105.             
復(fù)制代碼

仿真代碼51hei附件下載:
DAC0832（總）.7z (70.4 KB, 下載次數(shù): 44)






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