欧美极品高清xxxxhd,国产日产欧美最新,无码AV国产东京热AV无码,国产精品人与动性XXX,国产传媒亚洲综合一区二区,四库影院永久国产精品,毛片免费免费高清视频,福利所导航夜趣136

標(biāo)題: 求用at89c51單片機測LM331 V/F轉(zhuǎn)化后的頻率 我的沒有顯示 [打印本頁]
作者: 煩熱    時間: 2024-2-28 23:35
標(biāo)題: 求用at89c51單片機測LM331 V/F轉(zhuǎn)化后的頻率 我的沒有顯示
我的沒有顯示，幫一下，謝謝。
要仿真圖和程序
   


  1. #include <reg51.h>
  2. sbit Awei = P1^0;
  3. sbit Bwei = P1^1;
  4. sbit Cwei = P1^2;
  5. sbit Dwei = P1^3;

  7. void jisuan();
  8. void delay(int x);
  9. int change(int x);


  12. #define SHU_0 0X3F;
  13. #define SHU_1 0X06;
  14. #define SHU_2 0X5B;
  15. #define SHU_3 0X4F;
  16. #define SHU_4 0X66;
  17. #define SHU_5 0X6D;
  18. #define SHU_6 0X7D;
  19. #define SHU_7 0X07;
  20. #define SHU_8 0X7F;
  21. #define SHU_9 0X6F;

  23. int ge=0, shi=0, bai=0, qian=0;
  24. int count = 0, i = 0;
  25. int freq = 0;
  26. int main()
  27. {
  28. ge = 0; shi = 0; bai = 0; qian = 0;

  30. TMOD = 0X15;

  32. TH0 = 0;
  33. TL0 = 0;
  34. TH1 = (65535 - 50000)/256;
  35. TL1 = (65535 - 50000)%256;

  37. IT0 = 1;
  38. EX0 = 1;

  40. EA = 1;
  41. ET0 = 1;
  42. ET1 = 1;

  44. TR0 = 1;
  45. TR1 = 1;
  46. while(1)
  47. {

  49. jisuan();
  50. Awei = 1; Bwei = 1; Cwei = 1; Dwei = 0;
  51. P2 = change(ge);
  52. delay(10);
  53. P2 = 0X00;
  54. Awei = 1; Bwei = 1; Cwei = 0; Dwei = 1;
  55. P2 = change(shi);
  56. delay(10);
  57. P2 = 0X00;
  58. Awei = 1; Bwei = 0; Cwei = 1; Dwei = 1;
  59. P2 = change(bai);
  60. delay(10);
  61. P2 = 0X00;
  62. Awei = 0; Bwei = 1; Cwei = 1; Dwei = 1;
  63. P2 = change(qian);
  64. delay(10);
  65. P2 = 0X00;
  66. }
  67. }
  68. void service_timer0() interrupt 1 using 1
  69. {
  70. TH0 = 0;
  71. TL0 = 0;
  72. }
  73. void service_timer1() interrupt 3 using 3
  74. {
  75. TH1 = (65535 - 50000)/256;
  76. TL1 = (65535 - 50000)%256;
  77. i++;
  78. if (i == 20)
  79. {
  80. freq =TL0 + TH0*256;
  81. i = 0;
  82. TH0 = 0;
  83. TL0 = 0;
  84. }
  85. }

  87. void jisuan()
  88. {
  89. qian = freq /1000;
  90. bai = (freq%1000)/100;
  91. shi = (freq%100)/10;
  92. ge = freq%10;
  93. }
  94. void delay(int x)
  95. {
  96. int i, j;
  97. for(i = 0; i < x; i++)
  98. for(j = 0; j < 100; j++);
  99. }
  100. int change(int x)
  101. {
  102. int shu;
  103. switch(x)
  104. {
  105. case 0: shu = SHU_0; break;
  106. case 1: shu = SHU_1; break;
  107. case 2: shu = SHU_2; break;
  108. case 3: shu = SHU_3; break;
  109. case 4: shu = SHU_4; break;
  110. case 5: shu = SHU_5; break;
  111. case 6: shu = SHU_6; break;
  112. case 7: shu = SHU_7; break;
  113. case 8: shu = SHU_8; break;
  114. case 9: shu = SHU_9; break;
  115. }
  116. return shu;
  117. }
復(fù)制代碼





歡迎光臨 (http://www.raoushi.com/bbs/) Powered by Discuz! X3.1