C51 COMPILER V8.02   LCD                                                                   03/06/2007 17:42:15 PAGE 1   


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

line level    source

   1          #include <reg51.H>
   2          #include <lcd.h>
   3          
   4          char code int2charLCD[]="0123456789";
   5                  
   6          void write_LCD_command(unsigned command)
   7          {
   8   1              rw=WRITE;
   9   1              rs=COMMAND;       //寫入指令寄存器
  10   1              enable=ENABLE;
  11   1              P1=command;
  12   1              delay100us(20);
  13   1              enable=DISABLE;
  14   1              rw=1;
  15   1      }
  16          void write_LCD_data(unsigned LCDdata)
  17          {
  18   1              rw=WRITE;
  19   1              rs=DATA;//選擇數據寄存器
  20   1              enable=ENABLE;
  21   1              P1=LCDdata;
  22   1              delay100us(20);
  23   1              enable=DISABLE;
  24   1              rw=1;
  25   1      }
  26          void init_LCD(void)
  27          {
  28   1              write_LCD_command(TwoLine_8bit);// 0x38,數據以8位方式傳送和接收,雙行顯示        
  29   1              write_LCD_command(CURSOR_OFF);  // 0x0C,顯示屏關閉,光標出現
  30   1              write_LCD_command(CURSOR_RIGHT);// 0x06,顯示屏不移動,每次讀入數據后,地址加1,光標右移一位
  31   1      }
  32          void clear_LCD()
  33          {
  34   1              write_LCD_command(CLEAR);//清除顯示器   
  35   1              write_LCD_command(CURSOR_HOME);//光標移到左上角 
  36   1      }
  37          void display_LCD_string(char *p) //顯示字符串
  38          {
  39   1              while(*p)
  40   1              {
  41   2                      write_LCD_data(*p);
  42   2                      p++;
  43   2              }
  44   1      }
  45          void display_LCD_number(char number) //顯示一個數字
  46          {
  47   1              unsigned char x,y;
  48   1              x=number;
  49   1      //      y=number-10*x;
  50   1              write_LCD_data(int2charLCD[x]);
  51   1      //      write_LCD_data(int2charLCD[y]);
  52   1      }
*** WARNING C280 IN LINE 47 OF LCD.C: 'y': unreferenced local variable
  53          void gotoxy(unsigned x,unsigned y)       //設置光標到第Y行第X個字的位置
  54          {
C51 COMPILER V8.02   LCD                                                                   03/06/2007 17:42:15 PAGE 2   

  55   1              if(x==1)  
  56   1                      write_LCD_command(GOTO_LINE_1+y);
  57   1              else
  58   1              write_LCD_command(GOTO_LINE_2+y);
  59   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    156    ----
   CONSTANT SIZE    =     11    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  1 WARNING(S),  0 ERROR(S)