标题: LCD12864、STC15 单片机并行连接方式多文件编程 [打印本页]
作者: YJZL    时间: 2019-7-21 09:15
标题: LCD12864、STC15 单片机并行连接方式多文件编程
  1. #ifndef __LCD12864_H__
  2. #define __LCD12864_H__
  3. #include<stc15.h>
  4. #define DataPort P0        //MCU P0<------> LCM
  5. sbit RS=P5^5;
  6. sbit RW=P4^2;
  7. sbit E=P4^1;
  8. sbit PSB=P1^1;
  9. sbit RES=P1^0;
  10. /*????????*/
  11. //??????λ
  12. void Check_Busy();
  13. //д???
  14. void Write_Cmd(unsigned char Cmd);
  15. //д????
  16. void Write_Data(unsigned char Data);
  17. //LCD?????????
  18. void Init_LCD12864();
  19. //???????????
  20. void CGRAM();
  21. //??????????????
  22. void DisplayCGRAM(unsigned char x,unsigned char y);
  23. //????????  x:???????????Χ0~8  y:???????????Χ1~4
  24. void LCD_PutString(unsigned char x,unsigned char y,unsigned char code *s);
  25. //????
  26. void ClrScreen();
  27. //?????
  28. void LCD_PutGraphic(unsigned char code *img);
  29. //??????????
  30. void SetGraphicMode();
  31. #endif



  35. #include"LCD12864.h"
  36. #include "delay.h"[/b]
  37. //????λ
  38. void Check_Busy()
  39. {  
  40.     RS=0;
  41.     RW=1;
  42.     E=1;
  43.     DataPort=0xff;
  44.     while((DataPort&0x80)==0x80);//?????
  45.     E=0;
  46. }

  48. //д????
  49. [b]void Write_Cmd(unsigned char Cmd)
  50. {
  51. Check_Busy();
  52. RS=0;
  53. RW=0;
  54. E=1;
  55. DataPort=Cmd;
  56. DelayUs2x(5);
  57. E=0;
  58. DelayUs2x(5);
  59. }
  60. //д????
  61. [b]void Write_Data(unsigned char Data)
  62. {
  63. Check_Busy();
  64. RS=1;
  65. RW=0;
  66. E=1;
  67. DataPort=Data;
  68. DelayUs2x(5);
  69. E=0;
  70. DelayUs2x(5);
  71. }[/b]
  72. [b]
  73. //??????????
  74. void Init_LCD12864()
  75. {  
  76.    DelayMs(40);           //????40MS?????????
  77.    PSB=1;                 //?????8BIT?????????
  78.    DelayMs(1);            //???
  79.    RES=0;                 //??λ
  80.    DelayMs(1);            //???
  81.    RES=1;                 //??λ???
  82.    DelayMs(10);
  83.    Write_Cmd(0x30);       //?????????
  84.    DelayUs2x(50);         //???????100us
  85.    Write_Cmd(0x30);       //???8bit??????
  86.    DelayUs2x(20);         //???????37us
  87.    Write_Cmd(0x0c);       //?????(???α???????)
  88.    DelayUs2x(50);         //???????100us
  89.    Write_Cmd(0x01);       //?????????????趨???????00H
  90.    DelayMs(15);           //???????10ms
  91.    Write_Cmd(0x06);       //??????????????д??????趨?α???????????????????λ?????????????1λ???
  92.    DelayUs2x(50);         //???????100us
  93. }
  94. //???????????
  95. void CGRAM()
  96. {
  97.      Write_Cmd(0x30);
  98.      Write_Cmd(0x40);
  99. }
  100. //??????????????
  101. void DisplayCGRAM(unsigned char x,unsigned char y)
  102. {
  103. switch(y)
  104.      {
  105.    case 1: Write_Cmd(0x80+x);break;
  106.    case 2: Write_Cmd(0x90+x);break;
  107.    case 3: Write_Cmd(0x88+x);break;
  108.    case 4: Write_Cmd(0x98+x);break;
  109.       default:break;
  110.   }
  111.     Write_Data(00);
  112.     Write_Data(00);[/b]
  113. }      
  114. //????????  x:???????????Χ0~8  y:???????????Χ1~4
  115. void LCD_PutString(unsigned char x,unsigned char y,unsigned char code *s)
  116. {
  117. switch(y)
  118.      {
  119.    case 1: Write_Cmd(0x80+x);break;
  120.    case 2: Write_Cmd(0x90+x);break;
  121.    case 3: Write_Cmd(0x88+x);break;
  122.    case 4: Write_Cmd(0x98+x);break;
  123.       default:break;
  124.   }
  125. while(*s>0)
  126.    {
  127.       Write_Data(*s);
  128.       s++;
  129.       DelayUs2x(50);
  130.    }
  131. }[/b]
  132. [b]//????
  133. void ClrScreen()
  134. {
  135.    Write_Cmd(0x01);
  136.    DelayMs(15);
  137. }
  138.    
  139. //?????
  140. void LCD_PutGraphic(unsigned char code *img)
  141. {
  142. int i,j;
  143.   //????????????????
  144.    for(i=0;i<32;i++)            
  145.     {
  146.       Write_Cmd(0x80 + i); //SET  ?????? VERTICAL ADD
  147.       Write_Cmd(0x80);     //SET  ????? HORIZONTAL ADD
  148.       for(j=0;j<16;j++)
  149.        {
  150.          Write_Data(*img);
  151.          img++;
  152.        }
  153.     }
  154.   //????°???????????
  155.    for(i=0;i<32;i++)            
  156.     {
  157.       Write_Cmd(0x80 + i); //SET ?????? VERTICAL ADD
  158.       Write_Cmd(0x88);     //SET ????? HORIZONTAL ADD
  159.       for(j=0;j<16;j++)
  160.        {
  161.          Write_Data(*img);
  162.          img++;
  163.        }
  164.     }  
  165.            
  166. }
  167. //??????????
  168. void SetGraphicMode()
  169. {
  170.    Write_Cmd(0x36);       //???8bit?????? ?????
  171.    DelayUs2x(20);
  172. }  
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