lcd1602.lst

单片机控制LCD1602液晶显示的驱动程序

C51 COMPILER V7.20   LCD1602                                                               06/17/2007 22:04:18 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE LCD1602
OBJECT MODULE PLACED IN lcd1602.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE lcd1602.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "reg52.h" 
   2          #include "lcd1602.h"
   3          /*void checkbusy(void)
   4          {lcd=0xff;
   5           enable=0;
   6           rw=1;
   7           rs=0;
   8           enable=1;
   9           delay(100);
  10           while(lcd&busy);
  11           enable=0;
  12          }*/
  13          /************延时函数*/
  14          void Delay(uint i)
  15          {
  16   1        while(i--);
  17   1      }
  18          /*写指令函数*/
  19          void Write_Instruction(uchar x)
  20          {
  21   1       Delay(1000);
  22   1       E=0;
  23   1       RW=0;
  24   1       RS=0;
  25   1       LCDData=x;
  26   1       E=1;
  27   1       Delay(20);
  28   1       E=0;
  29   1       }
  30          /*写单个数据的函数*/
  31          void Write_Data(uchar x)
  32          {
  33   1       Delay(1000);
  34   1       E=0;
  35   1       RW=0;
  36   1       RS=1;
  37   1       E=1;
  38   1       LCDData=x;
  39   1       E=0;
  40   1      }
  41          /*清屏函数*/
  42          void Cls(void)
  43          {
  44   1        Write_Instruction(0x01);
  45   1      }
  46          /*写入一串字符串函数*/
  47          void Write_String(uchar x,uchar *p)
  48          { Write_Instruction(x);
  49   1        while(*p!=0x00)
  50   1       {Write_Data(*p);
  51   2        p++;
  52   2        if (x++==0x8f)
  53   2        {Write_Instruction(0xc0);}
  54   2       }
  55   1      }
C51 COMPILER V7.20   LCD1602                                                               06/17/2007 22:04:18 PAGE 2   

  56          /*初始化函数*/
  57          void InitLCD(void)
  58          {Write_Instruction(0x38);
  59   1       Delay(200);
  60   1       Write_Instruction(0x0e);
  61   1       Delay(200);
  62   1       Write_Instruction(0x06);
  63   1       Delay(200);
  64   1      }
  65          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    132    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)