1602.lst

５１实例大全

C51 COMPILER V7.06   1602                                                                  06/10/2010 22:02:25 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE 1602
OBJECT MODULE PLACED IN .\obj\1602.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE 1602.c BROWSE DEBUG OBJECTEXTEND PRINT(.\obj\1602.lst) OBJECT(.\obj\1602.ob
                    -j)

stmt level    source

   1          /*-----------------------------------------------
   2            名称：LCD1602
   3            论坛：www.doflye.net
   4            编写：shifang
   5            日期：2009.5
   6            修改：无
   7            内容：
   8            引脚定义如下：1-VSS 2-VDD 3-V0 4-RS 5-R/W 6-E 7-14 DB0-DB7 15-BLA 16-BLK
   9          ------------------------------------------------*/
  10          #include "1602.h"
  11          #include "delay.h"
  12          
  13          #define CHECK_BUSY
  14          
  15          sbit RS = P2^4;   //定义端口 
  16          sbit RW = P2^5;
  17          sbit EN = P2^6;
  18          
  19          #define RS_CLR RS=0 
  20          #define RS_SET RS=1
  21          
  22          #define RW_CLR RW=0 
  23          #define RW_SET RW=1 
  24          
  25          #define EN_CLR EN=0
  26          #define EN_SET EN=1
  27          
  28          #define DataPort P0
  29          
  30          /*------------------------------------------------
  31                        判忙函数
  32          ------------------------------------------------*/
  33           bit LCD_Check_Busy(void) 
  34           { 
  35   1      #ifdef CHECK_BUSY
  36   1       DataPort= 0xFF; 
  37   1       RS_CLR; 
  38   1       RW_SET; 
  39   1       EN_CLR; 
  40   1       _nop_(); 
  41   1       EN_SET;
  42   1       return (bit)(DataPort & 0x80);
  43   1      #else
               return 0;
              #endif
  46   1       }
  47          /*------------------------------------------------
  48                        写入命令函数
  49          ------------------------------------------------*/
  50           void LCD_Write_Com(unsigned char com) 
  51           {  
  52   1       while(LCD_Check_Busy()); //忙则等待
  53   1       RS_CLR; 
  54   1       RW_CLR; 
C51 COMPILER V7.06   1602                                                                  06/10/2010 22:02:25 PAGE 2   

  55   1       EN_SET; 
  56   1       DataPort= com; 
  57   1       _nop_(); 
  58   1       EN_CLR;
  59   1       }
  60          /*------------------------------------------------
  61                        写入数据函数
  62          ------------------------------------------------*/
  63           void LCD_Write_Data(unsigned char Data) 
  64           { 
  65   1       while(LCD_Check_Busy()); //忙则等待
  66   1       RS_SET; 
  67   1       RW_CLR; 
  68   1       EN_SET; 
  69   1       DataPort= Data; 
  70   1       _nop_();
  71   1       EN_CLR;
  72   1       }
  73          
  74          /*------------------------------------------------
  75                          清屏函数
  76          ------------------------------------------------*/
  77           void LCD_Clear(void) 
  78           { 
  79   1       LCD_Write_Com(0x01); 
  80   1       DelayMs(5);
  81   1       }
  82          /*------------------------------------------------
  83                        写入字符串函数
  84          ------------------------------------------------*/
  85           void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s) 
  86           {     
  87   1             
  88   1       while (*s) 
  89   1              {     
  90   2       LCD_Write_Char(x,y,*s);     
  91   2       s ++;  x++;   
  92   2              }
  93   1       }
  94          /*------------------------------------------------
  95                        写入字符函数
  96          ------------------------------------------------*/
  97          void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data) 
  98           {     
  99   1       if (y == 0) 
 100   1              {     
 101   2              LCD_Write_Com(0x80 + x);     
 102   2              }    
 103   1       else 
 104   1              {     
 105   2              LCD_Write_Com(0xC0 + x);     
 106   2              }        
 107   1       LCD_Write_Data( Data);  
 108   1       }
 109          /*------------------------------------------------
 110                        初始化函数
 111          ------------------------------------------------*/
 112           void LCD_Init(void) 
 113           {
 114   1         LCD_Write_Com(0x38);    /*显示模式设置*/ 
 115   1         DelayMs(5); 
 116   1         LCD_Write_Com(0x38); 
C51 COMPILER V7.06   1602                                                                  06/10/2010 22:02:25 PAGE 3   

 117   1         DelayMs(5); 
 118   1         LCD_Write_Com(0x38); 
 119   1         DelayMs(5); 
 120   1         LCD_Write_Com(0x38);  
 121   1         LCD_Write_Com(0x08);    /*显示关闭*/ 
 122   1         LCD_Write_Com(0x01);    /*显示清屏*/ 
 123   1         LCD_Write_Com(0x06);    /*显示光标移动设置*/ 
 124   1         DelayMs(5); 
 125   1         LCD_Write_Com(0x0C);    /*显示开及光标设置*/
 126   1         }
 127             
 128          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    188    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       5
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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