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標題: Prteus秒表設計LCD實現 [打印本頁]
作者: ohhh    時間: 2020-6-24 16:04
標題: Prteus秒表設計LCD實現

/*txt1.c*/
  1. #include <reg52.h>
  2. #include<intrins.h>
  3. #define uchar unsigned char
  4. #define uint unsigned int
  5. #define DelayNOP(){_nop_();_nop_();_nop_();_nop_();}
  6. uchar Time_Buffer[]={0,0,0,0};
  7. uchar LCD_Display_Buffer[] = {"00:00:00:00"};
  8. void LCD_Initialize();
  9. void LCD_Set_POS(uchar);
  10. void LCD_Write_Data(uchar);
  11. void Display_String(uchar *,uchar);
  12. void Beep();
  13. sbit K1=P1^0;
  14. sbit K2=P1^1;
  15. sbit BEEP=P3^0;
  16. sbit LCD_RS=P2^0;
  17. sbit LCD_RW=P2^1;
  18. sbit LCD_EN=P2^2;
  19. char KeyCount=0;
  20. uchar code msg1[]= {"Second Watch 0 "};
  21. uchar code msg2[]= {"####       "};
  22. uchar code Prompts[][16]=
  23. {{"##1--> "},{"##1-->##2    "},{"##3-->    "},{"##3-->4   "}};

  25. void Beep()
  26. {
  27. uchar i,j=70;
  28. for(i=0;i<180;i++)
  29. {while(--j);BEEP=~BEEP;}
  30. BEEP=0;}
  31. void DelayX(uint MS)
  32. {
  33. uchar i;
  34. while(MS--) for(i=0;i<120;i++);}
  35. void Show_Second()
  36. {
  37. uchar i;
  38. LCD_Set_POS(0X45); //設置 LCD顯示起點
  39. for (i=3;i!=0xff;i--)
  40. {
  41. //將兩位整數的1、100s, 秒，分，時轉換為8位數字字符
  42. LCD_Display_Buffer[2*i+1]=Time_Buffer[i]/10+'0';
  43. LCD_Display_Buffer[2*i]=Time_Buffer[i]%10+'0';
  44. //在i=3,2,1,0時分別顯示時，分，秒，1/100s
  45. LCD_Write_Data(LCD_Display_Buffer[2*i+1]);
  46. LCD_Write_Data(LCD_Display_Buffer[2*i]);
  47. LCD_Write_Data(':');
  48. }}
  49. //Time0中斷
  50. void Time0() interrupt 1 using 0
  51. {
  52. TH0=-10000/256;
  53. TL0=-10000%256;
  54. Time_Buffer[0]++;
  55. if(Time_Buffer[0]==100)
  56. {
  57. Time_Buffer[0]=0; Time_Buffer[1]++;
  58. }
  59. if(Time_Buffer[1]==60)//秒
  60. {
  61. Time_Buffer[1]=0; Time_Buffer[2]++;
  62. }
  63. if(Time_Buffer[2]==60)  //分
  64. {
  65. Time_Buffer[2]=0; Time_Buffer[3]++;
  66. }
  67. if(Time_Buffer[3]==24)  //時
  68. Time_Buffer[3]=0;
  69. }
  70. void main()
  71. {
  72. uchar i;
  73. IE=0x82;
  74. TMOD=0x01;
  75. TH0=-10000/256;
  76. TL0=-10000%256;
  77. LCD_Initialize();
  78. Display_String(msg1,0x00);
  79. Display_String(msg2,0x40);
  80. while(1)
  81. {
  82. if(K1==0)
  83. {
  84. DelayX(100);
  85. i=++KeyCount;        
  86. switch(i)
  87. {
  88. case 1:        
  89. case 3: TR0=1;
  90. Display_String(Prompts[i-1],0);
  91. break;
  92. case 2:        
  93. case 4: TR0=0;
  94. Display_String(Prompts[i-1],0);
  95. break;
  96. default:TR0=0;
  97. break;
  98. }
  99. while (K1==0);
  100. Beep();
  101. }
  102. else
  103. if(K2==0)
  104. {
  105. TR0=0;
  106. KeyCount=0;
  107. for(i=0;i<4;i++)
  108. Time_Buffer[i]=0;
  109. Display_String(msg1,0);
  110. Beep();
  111. DelayX(100);
  112. while(K2==0);
  113. }
  114. Show_Second();
  115. }
  116. }

  118. /*txt2.c*/
  119. #include <reg52.h>
  120. #include<intrins.h>
  121. #define uchar unsigned char
  122. #define uint unsigned int
  123. #define DelayNOP(){_nop_();_nop_();_nop_();_nop_();}
  124. sbit LCD_RS=P2^0;
  125. sbit LCD_RW=P2^1;
  126. sbit LCD_EN=P2^2;
  127. bit LCD_Busy_Check();
  128. void LCD_Initialize();
  129. void LCD_Write_Data(uchar);
  130. void LCD_Write_Command(uchar);

  132. void DelayMS(unit);
  133. void DelayMS(uint MS)
  134. {
  135. uchar t;
  136. while(MS--) for(t=0;t<120;t++);
  137. }
  138. bit LCD_Busy_Check()
  139. {
  140. bit Result;
  141. LCD_RS=0;LCD_RW=1;LCD_EN=1;
  142. DelayNOP();
  143. Result=(bit)(P0&0x80);
  144. LCD_EN=0;
  145. return Result;
  146. }
  147. void LCD_Write_Command(uchar cmd)
  148. {
  149. while(LCD_Busy_Check());
  150. LCD_RS=0;LCD_RW=0;LCD_EN=0;
  151. _nop_();_nop_();
  152. P0=cmd;DelayNOP();
  153. LCD_EN=1;DelayNOP();
  154. LCD_EN=0;
  155. }
  156. void LCD_Write_Data(uchar str)
  157. {
  158. while(LCD_Busy_Check());
  159. LCD_RS=1;LCD_RW=0;LCD_EN=0;
  160. P0=str;DelayNOP();
  161. LCD_EN=1;DelayNOP();
  162. LCD_EN=0;
  163. }
  164. void LCD_Initialize()
  165. {
  166. DelayMS(5);LCD_Write_Command(0x38);
  167. DelayMS(5);LCD_Write_Command(0x0c);
  168. DelayMS(5);LCD_Write_Command(0x06);
  169. DelayMS(5);LCD_Write_Command(0x01);
  170. DelayMS(5);
  171. }
  172. void LCD_Set_POS(uchar Position)
  173. {
  174. LCD_Write_Command(Position|0x80);
  175. }
  176. void Display_String(uchar*str,uchar LineNo)
  177. {
  178. uchar k;
  179. LCD_Set_POS(LineNo);
  180. for(k=0;k<16;k++)
  181. LCD_Write_Data(str[k]);
  182. }
復制代碼






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