44.lst

44键盘液晶显示程序

C51 COMPILER V8.02   44                                                                    10/21/2007 13:08:57 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE 44
OBJECT MODULE PLACED IN 44.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 44.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg51.h>
   2          
   3          #define uchar unsigned char
   4          #define uint  unsigned int
   5                                                                
   6          #define LCD_Data  P0
   7          #define Busy    0x80  //用于检测LCD状态字中的Busy标识
   8          
   9          unsigned char temp; 
  10          unsigned char key; 
  11          unsigned char i,j;
  12           
  13            
  14          sbit RS = P3^5;  //定义LCD引脚
  15          sbit RW = P3^6; 
  16          sbit E  = P3^7;
  17          
  18          sbit P2_4 = P2^4;
  19          sbit P2_5 = P2^5;
  20          sbit P2_6 = P2^6;
  21          sbit P2_7 = P2^7;
  22          
  23          void System_Initial(void);
  24          void Delay5Ms(void);
  25          void Delay400Ms(void);
  26          
  27          void LCDInit(void);
  28          void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);  //指定位置显示一个字符
  29          void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);   //指定位置显示一串字