标题: 基于51单片机制作的波形发生器Proteus仿真程序 [打印本页]
作者: 1007915414·    时间: 2019-12-1 22:16
标题: 基于51单片机制作的波形发生器Proteus仿真程序
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>

  3. sbit wr=P3^6;
  4. sbit rd=P3^2;

  6. sbit key0=P1^0;
  7. sbit key1=P1^1;
  8. sbit key2=P1^2;
  9. sbit key3=P1^3;
  10. sbit key4=P1^4;

  12. unsigned char flag;//flag为0、1、2、3、4时分别为正弦波、方波、三角波、梯形波、锯齿波

  14. unsigned char const code ZXB_code[256]={
  15. 0x80,0x83,0x86,0x89,0x8c,0x8f,0x92,0x95,0x98,0x9c,0x9f,0xa2,
  16. 0xa5,0xa8,0xab,0xae,0xb0,0xb3,0xb6,0xb9,0xbc,0xbf,0xc1,0xc4,
  17. 0xc7,0xc9,0xcc,0xce,0xd1,0xd3,0xd5,0xd8,0xda,0xdc,0xde,0xe0,
  18. 0xe2,0xe4,0xe6,0xe8,0xea,0xec,0xed,0xef,0xf0,0xf2,0xf3,0xf4,
  19. 0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfc,0xfd,0xfe,0xfe,0xff,
  20. 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfe,
  21. 0xfd,0xfc,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf3,0xf2,
  22. 0xf0,0xef,0xed,0xec,0xea,0xe8,0xe6,0xe4,0xe3,0xe1,0xde,0xdc,
  23. 0xda,0xd8,0xd6,0xd3,0xd1,0xce,0xcc,0xc9,0xc7,0xc4,0xc1,0xbf,
  24. 0xbc,0xb9,0xb6,0xb4,0xb1,0xae,0xab,0xa8,0xa5,0xa2,0x9f,0x9c,
  25. 0x99,0x96,0x92,0x8f,0x8c,0x89,0x86,0x83,0x80,0x7d,0x79,0x76,
  26. 0x73,0x70,0x6d,0x6a,0x67,0x64,0x61,0x5e,0x5b,0x58,0x55,0x52,
  27. 0x4f,0x4c,0x49,0x46,0x43,0x41,0x3e,0x3b,0x39,0x36,0x33,0x31,
  28. 0x2e,0x2c,0x2a,0x27,0x25,0x23,0x21,0x1f,0x1d,0x1b,0x19,0x17,
  29. 0x15,0x14,0x12,0x10,0xf,0xd,0xc,0xb,0x9,0x8,0x7,0x6,0x5,0x4,
  30. 0x3,0x3,0x2,0x1,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
  31. 0x0,0x1,0x1,0x2,0x3,0x3,0x4,0x5,0x6,0x7,0x8,0x9,0xa,0xc,0xd,
  32. 0xe,0x10,0x12,0x13,0x15,0x17,0x18,0x1a,0x1c,0x1e,0x20,0x23,
  33. 0x25,0x27,0x29,0x2c,0x2e,0x30,0x33,0x35,0x38,0x3b,0x3d,0x40,
  34. 0x43,0x46,0x48,0x4b,0x4e,0x51,0x54,0x57,0x5a,0x5d,0x60,0x63,
  35. 0x66,0x69,0x6c,0x6f,0x73,0x76,0x79,0x7c
  36. };        //用于生成正弦


  39. unsigned char keyscan()          //键盘扫描函数
  40. {
  41.   unsigned char keyscan_num,temp;

  43.   P1=0xff;
  44.   temp=P1;
  45.   if(~(temp&0xff))
  46.   {
  47.     if(key0==0)
  48.         {
  49.           keyscan_num=1;
  50.         }
  51.         else if(key1==0)
  52.         {
  53.           keyscan_num=2;
  54.         }
  55.         else if(key2==0)
  56.         {
  57.           keyscan_num=3;
  58.         }
  59.         else if(key3==0)
  60.         {
  61.           keyscan_num=4;
  62.         }
  63.         else if(key4==0)
  64.         {
  65.           keyscan_num=5;
  66.         }
  67.         else
  68.         {
  69.           keyscan_num=0;
  70.         }

  72.         return keyscan_num;
  73.   }
  74. }

  76. void init_DA0832()//DA芯片准备函数
  77. {
  78.   rd=0;
  79.   wr=0;
  80. }

  82. void ZXB()//正弦波函数
  83. {
  84.   unsigned int i;
  85.   
  86.   do{
  87.     P2=ZXB_code[i];
  88.         i=i+1;
  89.         }while(i<256);
  90. }

  92. void FB()//方波
  93. {
  94.   EA=1;
  95.   ET0=1;
  96.   TMOD=1;
  97.   TR0=1;
  98.   TH0=0xff;
  99.   TL0=0x83;
  100. }

  102. void SJB()//三角波
  103. {
  104.   P2=0x00;
  105.   do{
  106.     P2=P2+1;
  107.   }while(P2<0xff);
  108.   P2=0xff;
  109.   do{
  110.     P2=P2-1;
  111.   }while(P2>0x00);
  112.   P2=0x00;
  113. }

  115. void JCB()//锯齿波
  116. {
  117.   P2=0x00;
  118.   do{
  119.     P2=P2+1;
  120.   }while(P2<=0xff);
  121. }

  123. void TXB()//梯形波
  124. {
  125.   unsigned char i;

  127.   P2=0x00;
  128.   do{
  129.     P2=P2+1;
  130.   }while(P2<0xff);
  131.   P2=0xff;
  132.   for(i=255;i>0;i--)
  133.   {
  134.     P2=0xff;
  135.   }
  136.   do{
  137.     P2=P2-1;
  138.   }while(P2>0x00);
  139.   P2=0x00;
  140. }

  142. void main()
  143. {
  144.   init_DA0832();
  145.   do
  146.     {
  147.       flag=keyscan();
  148.     }while(!flag);//等待按键按下
  149.   while(1)
  150.   {
  151.     switch(flag)
  152.     {
  153.       case 1:
  154.             do{
  155.               flag=keyscan();
  156.               ZXB();
  157.              }while(flag==1);
  158.             break;
  159.           case 2:
  160.             FB();
  161.             do{
  162.               flag=keyscan();
  163.                   }while(flag==2);
  164.                   TR0=0;
  165.             break;
  166.           case 3:
  167.             do{
  168.               flag=keyscan();
  169.               SJB();
  170.                   }while(flag==3);
  171.             break;
  172.           case 4:
  173.             do{
  174.               flag=keyscan();
  175.               TXB();
  176.                   }while(flag==4);
  177.             break;
  178.           case 5:
  179.             do{
  180.               flag=keyscan();
  181.               JCB();
  182.                   }while(flag==5);
  183.             break;
  184.           default:
  185.             flag=keyscan();
  186.             break;
  187.     }       
  188.   }
  189. }

  191. void timer0(void) interrupt 1
  192. {
  193.   P2=~P2;
  194.   TH0=0xff;
  195.   TL0=0x83;
  196.   TR0=1;
  197. }
复制代码

所有资料51hei提供下载:
波形发生器.zip (93.28 KB, 下载次数: 141)


作者: 李胜起    时间: 2019-12-2 17:48
这个proteus仿真是吧！
作者: 雨未遥    时间: 2019-12-11 10:10
楼主你的程序能调幅度吗
作者: w110365154    时间: 2019-12-15 23:14
感谢楼主分享，我下载下来学习学习
作者: fhhh5    时间: 2019-12-16 10:31
非常感谢
作者: 最靓仔的陆哥    时间: 2020-4-29 21:27
万分感谢
作者: 马梦圆    时间: 2020-5-2 12:30
怎么下载啊楼主
作者: 混元不灭圣人    时间: 2020-5-28 12:03
马梦圆 发表于 2020-5-2 12:30
怎么下载啊楼主

用黑币下载
作者: 混元不灭圣人    时间: 2020-5-28 12:04
李胜起 发表于 2019-12-2 17:48
这个proteus仿真是吧！

对的，这个是波形发生器的仿真



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