lcd1602.lst

基于51的单片机设计的电容计的完整源代码

C51 COMPILER V7.06   LCD1602                                                               03/02/2006 23:49:39 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE LCD1602
OBJECT MODULE PLACED IN LCD1602.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE LCD1602.C BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /******************************************************************
   2             本程序只供学习使用，未经作者许可，不得用于其它任何用途
   3                我的邮箱：[e-mail]
   4                  欢迎访问我的blog：  http://computer00.21ic.org
   5          
   6          LCD1602.C文件 LCD1602的函数 
   7          
   8          Created by Computer-lov
   9          Date: 2004.11.12
  10          
  11          Edit date:2006.3.2
  12          
  13          Version V1.0
  14          Copyright(C) Computer-lov 2004-2014
  15          All rigths reserved      
  16          *******************************************************************/
  17          
  18          
  19          #include "hardware.h"
  20          #include "lcd1602.h"
  21          
  22          void LCD_check_busy(void)   //检测LCD状态，看它是不是还在忙呢
  23          {
  24   1       while(1)
  25   1        {
  26   2         LCD_EN=0;
  27   2         LCD_RS=0;
  28   2         LCD_RW=1;
  29   2         LCD_DATA=0xff;
  30   2         LCD_EN=1;
  31   2         if(!LCD_BUSY)break;
  32   2        }
  33   1       LCD_EN=0;
  34   1      }
  35          
  36          void LCD_cls(void)          //LCD清屏
  37          {
  38   1       ET2=0;
  39   1       LCD_check_busy();
  40   1       LCD_RS=0;
  41   1       LCD_RW=0;
  42   1       LCD_EN=1;
  43   1       LCD_DATA=1;
  44   1       LCD_EN=0;
  45   1       ET2=1;
  46   1      }
  47          
  48          void LCD_write_instruction(unsigned char LCD_instruction)   //写指令到LCD
  49          {
  50   1       ET2=0;
  51   1       LCD_check_busy();
  52   1       LCD_RS=0;
  53   1       LCD_RW=0;
  54   1       LCD_EN=1;
  55   1       LCD_DATA=LCD_instruction;
C51 COMPILER V7.06   LCD1602                                                               03/02/2006 23:49:39 PAGE 2   

  56   1       LCD_EN=0;
  57   1       ET2=1;
  58   1      }
  59          
  60          void LCD_write_data(unsigned char LCD_data)      //输出一个字节数据到LCD
  61          {
  62   1       ET2=0;
  63   1       LCD_check_busy();
  64   1       LCD_RS=1;
  65   1       LCD_RW=0;
  66   1       LCD_EN=1;
  67   1       LCD_DATA=LCD_data;
  68   1       LCD_EN=0;
  69   1       ET2=1;
  70   1      }
  71           
  72          void LCD_set_position(unsigned char x)            //LCD光标定位到x处
  73          {
  74   1       LCD_write_instruction(0x80+x);
  75   1      }
  76          
  77          /*
  78          void LCD_go_home(void)                         //LCD光标归位
  79          {
  80           LCD_write_instruction(LCD_GO_HOME);
  81          }
  82          */
  83          
  84          void LCD_printc(unsigned char lcd_data)          //输出一个字符到LCD
  85          {
  86   1       LCD_write_data(lcd_data);
  87   1      }
  88          
  89          void LCD_prints(unsigned char *lcd_string)       //输出一个字符串到LCD
  90          {
  91   1       unsigned char i=0;
  92   1       while(lcd_string[i]!=0x00)
  93   1        {
  94   2         LCD_write_data(lcd_string[i]);
  95   2         i++;
  96   2        } 
  97   1      }
  98          
  99          void LCD_initial(void)                        //初始化LCD
 100          {
 101   1       LCD_write_instruction(LCD_AC_AUTO_INCREMENT|LCD_MOVE_DISENABLE);
 102   1       LCD_write_instruction(LCD_DISPLAY_ON|LCD_CURSOR_OFF);
 103   1       LCD_write_instruction(LCD_DISPLAY_DOUBLE_LINE);
 104   1       LCD_cls();
 105   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    132    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       3
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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