51单片机

20X7微型点阵屏，可切换字体。

2020-02-04 09:15发布

站内问答 / 51单片机
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本帖最后由 oufuqiang 于 2012-4-11 13:19 编辑

20X7微型点阵屏，可切换字体。 595控制的。

http://v.youku.com/v_show/id_XMzc5NDMyNDI0.html

IMG_0594.jpg (750.83 KB, 下载次数: 0) 下载附件 2012-4-11 13:18 上传

  2. #include <reg52.h>

  4. sbit scl = P1^0;
  5. sbit sda = P1^1;
  6. sbit upd = P1^2;
  7. sbit dpy = P1^7;

  9. sbit key1 = P2^0;
  10. sbit key2 = P2^1;
  11. sbit key3 = P2^2;
  12. sbit key4 = P2^4;
  13. sbit key5 = P2^5;

  15. unsigned char line,c1,c2,c3,c4;
  16. unsigned char code scantab[5]={0x02,0x04,0x08,0x10,0x20};
  17. bit charface,dot;
  18. unsigned char code numdot1[]={
  19. 0x00,0x60,0xFA,0x60,0x00,0x08,0x70,0x08,0x70,0x00,0x28,0x7C,0x28,0x7C,0x28,0x20,
  20. 0x54,0xFE,0x54,0x08,0x64,0x68,0x10,0x2C,0x4C,0x1C,0x62,0xBA,0x64,0x3A,0x00,0x02,
  21. 0x0C,0x00,0x00,0x00,0x38,0x44,0x82,0x00,0x82,0x44,0x38,0x00,0x00,0x48,0x30,0xFC,
  22. 0x30,0x48,0x00,0x10,0x7C,0x10,0x00,0x00,0x02,0x0C,0x00,0x00,0x00,0x08,0x08,0x08,
  23. 0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x02,0x1C,0x60,0x80,0x00,0x7C,0x92,0xA2,0x7C,
  24. 0x00,0x42,0xFE,0x02,0x00,0x00,0x66,0x8A,0x92,0x62,0x00,0x44,0x92,0x92,0x6C,0x00,
  25. 0x38,0x4A,0xFE,0x0A,0x00,0xE4,0x92,0x92,0x8C,0x00,0x7C,0x92,0x92,0x0C,0x00,0xC0,
  26. 0x9E,0xA0,0xC0,0x00,0x6C,0x92,0x92,0x6C,0x00,0x60,0x92,0x92,0x7C,0x00,0x00,0x44,
  27. 0x00,0x00,0x00,0x02,0x4C,0x00,0x00,0x10,0x28,0x44,0x82,0x00,0x00,0x24,0x24,0x24,
  28. 0x24,0x00,0x82,0x44,0x28,0x10,0x00,0x60,0x8A,0x90,0x60,0x7C,0x82,0x9A,0xAA,0x7A,
  29. 0x00,0x3E,0xC8,0x78,0x0E,0x00,0x82,0xFE,0x92,0x6C,0x00,0x7C,0x82,0x82,0x44,0x00,
  30. 0x82,0xFE,0x82,0x7C,0x00,0xFE,0x92,0x92,0x82,0x00,0xFE,0x90,0x90,0x80,0x00,0x7C,
  31. 0x82,0x8A,0x4C,0x00,0xFE,0x10,0x10,0xFE,0x00,0x82,0xFE,0x82,0x00,0x00,0x06,0x82,
  32. 0xFC,0x80,0x00,0xFE,0x10,0x28,0x44,0x00,0xFE,0x02,0x02,0x02,0xFE,0xF0,0x0E,0xF0,
  33. 0xFE,0xFE,0x20,0x10,0x08,0xFE,0x00,0x7C,0x82,0x82,0x7C,0x00,0xFE,0x88,0x88,0x70,
  34. 0x00,0x7C,0x82,0x84,0x7A,0x00,0xFE,0x90,0x98,0x66,0x00,0x64,0x92,0x92,0x4C,0x80,
  35. 0x80,0xFE,0x80,0x80,0x00,0xFC,0x02,0x02,0xFC,0x00,0xF8,0x06,0x1C,0xE0,0xE0,0x1E,
  36. 0xF0,0x1E,0xE0,0x82,0x6C,0x10,0x6C,0x82,0x80,0xE2,0x1E,0xE2,0x80,0x00,0x00,0x8E,
  37. 0x92,0xE2};
  38. unsigned char code numdot2[]={
  39. 0x00,0x60,0xFA,0x60,0x00,0x08,0x70,0x08,0x70,0x00,0x28,0x7C,0x28,0x7C,0x28,0x20,
  40. 0x54,0xFE,0x54,0x08,0x64,0x68,0x10,0x2C,0x4C,0x1C,0x62,0xBA,0x64,0x3A,0x00,0x02,
  41. 0x0C,0x00,0x00,0x00,0x38,0x44,0x82,0x00,0x82,0x44,0x38,0x00,0x00,0x48,0x30,0xFC,
  42. 0x30,0x48,0x00,0x10,0x7C,0x10,0x00,0x00,0x02,0x0C,0x00,0x00,0x00,0x08,0x08,0x08,
  43. 0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x02,0x1C,0x60,0x80,0x00,0xFE,0x82,0x82,0xFE,
  44. 0x00,0x00,0x00,0x00,0xFE,0x00,0x9E,0x92,0x92,0xF2,0x00,0x92,0x92,0x92,0xFE,0x00,
  45. 0xF0,0x10,0x10,0xFE,0x00,0xF2,0x92,0x92,0x9E,0x00,0xFE,0x92,0x92,0x9E,0x00,0xE0,
  46. 0x80,0x80,0xFE,0x00,0xFE,0x92,0x92,0xFE,0x00,0xF2,0x92,0x92,0xFE,0x00,0x00,0x44,
  47. 0x00,0x00,0x00,0x02,0x4C,0x00,0x00,0x10,0x28,0x44,0x82,0x00,0x00,0x24,0x24,0x24,
  48. 0x24,0x00,0x82,0x44,0x28,0x10,0x00,0x60,0x8A,0x90,0x60,0x7C,0x82,0x9A,0xAA,0x7A,
  49. 0x00,0x3E,0xC8,0x78,0x0E,0x00,0x82,0xFE,0x92,0x6C,0x00,0x7C,0x82,0x82,0x44,0x00,
  50. 0x82,0xFE,0x82,0x7C,0x00,0xFE,0x92,0x92,0x82,0x00,0xFE,0x90,0x90,0x80,0x00,0x7C,
  51. 0x82,0x8A,0x4C,0x00,0xFE,0x10,0x10,0xFE,0x00,0x82,0xFE,0x82,0x00,0x00,0x06,0x82,
  52. 0xFC,0x80,0x00,0xFE,0x10,0x28,0x44,0x00,0xFE,0x02,0x02,0x02,0xFE,0xF0,0x0E,0xF0,
  53. 0xFE,0xFE,0x20,0x10,0x08,0xFE,0x00,0x7C,0x82,0x82,0x7C,0x00,0xFE,0x88,0x88,0x70,
  54. 0x00,0x7C,0x82,0x84,0x7A,0x00,0xFE,0x90,0x98,0x66,0x00,0x64,0x92,0x92,0x4C,0x80,
  55. 0x80,0xFE,0x80,0x80,0x00,0xFC,0x02,0x02,0xFC,0x00,0xF8,0x06,0x1C,0xE0,0xE0,0x1E,
  56. 0xF0,0x1E,0xE0,0x82,0x6C,0x10,0x6C,0x82,0x80,0xE2,0x1E,0xE2,0x80,0x00,0x00,0x8E,
  57. 0x92,0xE2};

  59. //void yanshi(unsigned int time)
  60. // {
  61. // while(--time);
  62. // }
  63. void send595(unsigned char dat)
  64.   {
  65.   unsigned char i;
  66.   i=8;
  67.   do{
  68.         sda=dat&0x01;
  69.         scl=1;
  70.         scl=0;
  71.         dat=dat>>1;
  72.         }while(--i);
  73.   }
  74. void scandot(void)
  75.   {
  76.   if(charface)
  77.     {
  78.         send595(numdot1[c1*5+line]);
  79.         send595(numdot1[c2*5+line]);
  80.         send595(numdot1[c3*5+line]|dot);
  81.         send595(numdot1[c4*5+line]);
  82.         }
  83.   else
  84.     {
  85.         send595(numdot2[c1*5+line]);
  86.         send595(numdot2[c2*5+line]);
  87.         send595(numdot2[c3*5+line]|dot);
  88.         send595(numdot2[c4*5+line]);
  89.         }
  90.   send595(scantab[line]);
  91.   upd=1;
  92.   upd=0;
  93.   line++;
  94.   if(line>=5)
  95.     {
  96.     line=0;
  97.     }
  98.   }
  99. void main(void)
  100. {
  101.   TMOD=0X01;
  102.   TR0=1;
  103.   EA=1;
  104.   ET0=1;
  105.   scl=sda=upd=0;
  106.   c1=c2=c3=c4=15;
  107.   send595(0xFF);
  108.   send595(0xFF);
  109.   send595(0xFF);
  110.   send595(0xFF);
  111.   send595(0xFF);
  112.   upd=1;
  113.   upd=0;
  114.   while(key5);
  115. while(1)
  116.   {
  117.   scandot();
  118.   if(key1==0)
  119.     {
  120.         c4++;
  121.         if(c4>=25){c4=15;}
  122.         while(key1==0)
  123.           {
  124.           scandot();
  125.           }
  126.     }
  127.   if(key2==0)
  128.     {
  129.         c3++;
  130.         if(c3>=25){c3=15;}
  131.         while(key2==0)
  132.           {
  133.           scandot();
  134.           }
  135.     }
  136.   if(key3==0)
  137.     {
  138.         c2++;
  139.         if(c2>=25){c2=15;}
  140.         while(key3==0)
  141.           {
  142.           scandot();
  143.           }
  144.     }
  145.   if(key4==0)
  146.     {
  147.         c1++;
  148.         if(c1>=25){c1=15;}
  149.         while(key4==0)
  150.           {
  151.           scandot();
  152.           }
  153.     }
  154.   if(key5==0)
  155.     {
  156.         charface=!charface;
  157.         while(key5==0)
  158.           {
  159.           scandot();
  160.           }
  161.         }
  162.   }
  163. }

  165. void timer0(void) interrupt 1
  166. {
  167. static count,sec;
  168. TH0=(65536-49990)/256;
  169. TL0=(65536-49990)%256;
  170. count++;
  171. if(count>=40)
  172.   {
  173.   count=0;
  174.   dot=!dot;
  175.   sec++;
  176.   if(sec>=60)
  177.     {
  178.         sec=0;
  179.         c1++;
  180.         if(c1>=25)
  181.           {
  182.           c1=15;
  183.           c2++;
  184.           if(c2>=21)
  185.             {
  186.                 c2=15;
  187.                 c3++;
  188.                 if(c3>=25)
  189.                   {
  190.                   c3=15;
  191.                   c4++;
  192.                   if(c4>=21)
  193.                     {
  194.                         c1=c2=c3=c4=15;
  195.                         }
  196.                   }
  197.                 }
  198.           }
  199.         }
  200.   }
  201. }
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3条回答
cu_ice
2020-02-04 13:39
不错不错，这种小点阵貌似我公司有，有空做来玩玩

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