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標(biāo)題: 使用單片機(jī)定時(shí)器控制交通燈設(shè)計(jì) [打印本頁(yè)]
作者: 周春雨0321    時(shí)間: 2018-12-10 09:27
標(biāo)題: 使用單片機(jī)定時(shí)器控制交通燈設(shè)計(jì)
這是我課程設(shè)計(jì)需要的源代碼和原理圖，發(fā)給大家

單片機(jī)源程序如下:
  1. #include <reg51.h>
  2. #define SEG P2
  3. #define SCANP P1
  4. #define count_M1 50000
  5. #define TH_M1 (65535-count_M1)/256;
  6. #define TL_M1 (65535-count_M1)%256;
  7. int count_T0=0;
  8. #define count_M2 250
  9. #define TH_M2 (256-count_M2)
  10. #define TL_M2 (256-count_M2)

  12. char count_T1=0;
  13. char code TAB[10]={0xc0,0xf9,0xa4,0xb0,0x99,
  14.                    0x92,0x82,0xf8,0x80,0x98};
  15. char disp[2]={0x82,0xc0};
  16. bit red,green,yellow,turnred;  //定義紅綠黃燈的標(biāo)志位
  17. char scan=0;
  18. sbit hong=P3^2;
  19. sbit huang=P3^1;
  20. sbit lv=P3^0;
  21. main()
  22. {
  23. IE=0x8a;
  24. TMOD=0x21;
  25. TH0=TH_M1;TL0=TL_M1;
  26. TR0=1;
  27. TH1=TH_M2;TL1=TL_M2;
  28. TR1=1;
  29. red=1;
  30. green=0;
  31. yellow=0;
  32. hong=0;
  33. while(1);
  34. }

  36. void delay()
  37. {
  38. unsigned char a,b;
  39. for(a=100;a>0;a--)
  40. for(b=255;b>0;b--);
  41. }

  43. void TO_1s(void)interrupt 1
  44. {
  45. static char seconds = 60;
  46. TH0=TH_M1;TL0=TL_M1;
  47. if(++count_T0==20)
  48. {
  49. count_T0=0;
  50. seconds--;
  51. if(seconds==0)
  52. {if(red==1&green==0&yellow==0)
  53. {red=0;
  54. green=1;
  55. yellow=0;
  56. hong=1;
  57. lv=0;
  58. seconds=30;
  59. delay();
  60. }
  61. else if(red==0&green==1&yellow==0)
  62. {
  63. green=0;
  64. red=0;
  65. yellow=1;
  66. lv=1;
  67. huang=0;
  68. seconds=3;
  69. delay();
  70. }
  71. else if(red==0&green==0&yellow==1)
  72. {
  73. red=1;
  74. green=0;
  75. yellow=0;
  76. hong=0;
  77. huang=1;
  78. seconds=60;
  79. delay();
  80. }
  81. }
  82. disp[1]=TAB[seconds%10];
  83. disp[0]=TAB[seconds/10];
  84. }
  85. }

  87. void T1_8ms(void)interrupt 3
  88. {
  89. if(++count_T1==32)
  90. {
  91. count_T1=0;
  92. if(++scan==3)scan=1;
  93. SEG=0xff;
  94. SCANP=~scan;
  95. SEG=disp[scan-1];
  96. }
  97. }
復(fù)制代碼

所有資料51hei提供下載:
使用定時(shí)器的交通燈.rar (26.51 KB, 下載次數(shù): 12)






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