標題: 51單片機驅(qū)動adc0804 lcd1602液晶顯示程序 [打印本頁]
作者: das    時間: 2015-4-18 04:19
標題: 51單片機驅(qū)動adc0804 lcd1602液晶顯示程序
  1. #include <reg52.h>
  2. #include <intrins.h>
  3. #define uchar unsigned char
  4. #define uint unsigned int
  5. uchar code dis0[]={"Volter(V)"};
  6. uchar code dis1[]={"dianliuA"};
  7. sbit jia=P3^4;
  8. sbit jian=P3^5;
  9. sbit lcden=P3^2;
  10. sbit lcdrs=P3^0;
  11. sbit adwr=P3^6;
  12. sbit adrd=P3^7;
  13. sbit  wr1=P3^1;
  14. uchar num;
  15. uint ad_data,ad_data1,ad_data2,ad_data3,adval,ad_data4,da,rw1;
  16. unsigned char CYCLE; //定義周期 該數(shù)字X基準定時時間 如果是10 則周期是10 x 0.1ms
  17. unsigned char PWM_ON;//定義高電平時間
  18. sbit LED = P3^3;
  19. void delay(uint z)
  20. {
  21. // uint y;
  22. // for(y=110;y>0;y--);
  23.   while(z--);
  24. }
  25. key(uchar num)
  26. {if(jia==0)
  27. {delay(10);if(jia==0)
  28. {num++;
  29.      if(num==7)num=6;
  30.   while(jia==0);}
  31.    }
  32.   if(jian==0)
  33.   {delay(10);
  34.   if (jian==0)
  35.    {   if(num!=0)num--;else num=0;while(jian==0);}
  36.   }
  37.   return num;
  38. }
  39. dispose(unsigned char PWM_ON)
  40. {
  41.    switch(num)
  42.    {case 0:PWM_ON=20;break;
  43.    case 1:PWM_ON=40;break;
  44.    case 3:PWM_ON=80;break;
  45.    case 2:PWM_ON=60;break;
  46.    case 4:PWM_ON=100;break;
  47.    case 5:PWM_ON=120;break;
  48.    case 6:PWM_ON=140;break;
  49.    }
  50.    return PWM_ON;
  51.   }
  52. void dac0832()
  53. { int i;
  54. //lcden=1;delay(5);
  55. lcden=0;delay(50);
  56. wr1=1;delay(5);
  57. wr1=0;delay(50);
  58.   P2=ad_data;
  59. da=ad_data;
  60. for(i=0;i<5;i++)
  61. {
  62. if(PWM_ON>da) P2=--da;
  63. if(PWM_ON<da) P2=++da;
  64. if(PWM_ON==da)P2=da;
  65. }
  66. lcden=0;wr1=1;
  67. }
  68. /*void init0()    //初始化
  69. { TMOD =0x01;//定時器設(shè)置 0.1ms in 12M crystal
  70. TH0=(65536-100)/256;
  71. TL0=(65536-100)%256;//定時0.1mS
  72. IE= 0x82;  //打開中斷
  73. TR0=1;
  74. }   

  76. void tim(void) interrupt 1 using 1
  77. {
  78. static unsigned char count; //
  79. TH0=(65536-1000)/256;
  80. TL0=(65536-1000)%256;//定時1mS
  81. if (count==PWM_ON)
  82.     {
  83.      LED = 0; //燈滅
  84.     }
  85.   count++;
  86. if(count == CYCLE)
  87.     {
  88.     count=0;
  89. if(PWM_ON!=0) //如果左右時間是0 保持原來狀態(tài)
  90.     LED =1;//燈亮
  91.     }
  92. }     */


  95. void write_com(uchar com)
  96. {
  97.   lcdrs=0;P0=com;
  98.   delay(5);
  99.   lcden=1;
  100.   delay(5);
  101.   lcden=0;
  102. }
  103. void write_data(uchar dota)
  104. {
  105.   lcdrs=1;
  106.   P0=dota;
  107.   delay(5);
  108.   lcden=1;
  109.   delay(5);
  110.   lcden=0;
  111. }
  112. void init()
  113. {
  114.   lcden=0;
  115.   write_com(0x38);
  116.   write_com(0x0c);
  117.   write_com(0x06);
  118.   write_com(0x01);
  119. }
  120. void display0()
  121. { write_com(0x80);
  122.   for(num=0;num<10;num++)
  123. {
  124.   write_data(dis0[num]);
  125.   delay(5);
  126. }
  127.   delay(5);
  128.   write_data(ad_data1+0x30);delay(1);
  129.   write_data(ad_data2+0x30);delay(1);
  130.   write_data('.');delay(1);
  131.   write_data(ad_data3+0x30);delay(1);
  132. // write_data(ad_data4+0x30);delay(2);
  133.   write_com(0x80+0x40);
  134.   for(num=0;num<8;num++)
  135. {
  136.   write_data(dis1[num]);
  137.   delay(5);}

  139. }
  140. AD0804(uint ad_data)
  141. { adwr=1;_nop_();
  142.   adwr=0;_nop_();delay(5);
  143.   adwr=1;_nop_();
  144.   P1=0xff;
  145.   adrd=1;_nop_();
  146.   adrd=0;_nop_();
  147.   ad_data=P1;
  148.   adval=ad_data;
  149.   adval=adval*100/51;
  150.   ad_data1=adval/100;
  151.   ad_data2=adval%100/10;
  152.   ad_data3=adval%100%10;
  153. // ad_data4=adval%1000%100%10;
  154. return ad_data;

  156. }

  158. void main()
  159. {   init();
  160.     ad_data=1;
  161.     ad_data1=2;
  162. LED=0;
  163. num=0;
  164. CYCLE=200;
  165. PWM_ON=100;
  166. while(1)
  167.     {LED=0;
  168. display0();
  169. AD0804(ad_data);
  170.     key(num);
  171.     dispose(PWM_ON);
  172. dac0832();
  173.     LED=1;delay(CYCLE);
  174. }
  175.    
  176. }
復(fù)制代碼


作者: GG-路人乙    時間: 2015-5-10 10:02
好東西，學(xué)習(xí)一下，謝謝分享！



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