main.lst

some reference exercise of C language

C51 COMPILER V7.08   MAIN                                                                  11/27/2006 23:20:45 PAGE 1   


C51 COMPILER V7.08, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN Main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Main.c BROWSE DEBUG OBJECTEXTEND TABS(8)

line level    source

   1          // Khai bao cac file header
   2          #include        <AT89X52.H>
   3          #include        <Kit8051.h>
   4          
   5          // Khai bao cac bien toan cuc
   6          unsigned char code string1[] = "Truong CDSP HN";
   7          unsigned char code string2[] = "8051 Starter Kit";
   8          
   9          // Khai bao cac ham
  10          void InitSystem(void);
  11          void Delay(unsigned int n);
  12          void InitLCD(void);
  13          void WriteCommand(unsigned char command);
  14          void WriteCharacter(unsigned char character);
  15          void WriteLCD(unsigned char x);
  16          void SendString2LCD(unsigned char code *p);
  17          void DisplayText(void);
  18          
  19          // Dinh nghia cac ham
  20          void InitSystem(void)
  21          {
  22   1              // Cam LCD
  23   1              LCD_E = 0;
  24   1              // Sang den backlight
  25   1              LCD_BL = 0;
  26   1              // Tre de LCD tu khoi tao ben trong (it nhat 15ms)
  27   1              Delay(100);
  28   1              // Tat den backlight
  29   1              LCD_BL = 1;
  30   1              InitLCD();
  31   1      }
  32          void Delay(unsigned int n)
  33          {
  34   1              unsigned int i,j;
  35   1              for(i=0;i<n;i++)
  36   1                      for(j=0;j<100;j++);
  37   1      }
  38          void InitLCD(void)
  39          {
  40   1              WriteCommand(0x30);
  41   1              WriteCommand(0x30);
  42   1              WriteCommand(0x30);
  43   1              
  44   1              // 8 bit, 2 lines, font 5x7
  45   1              WriteCommand(0x38);
  46   1              // Display on, hide cursor
  47   1              WriteCommand(0x0C);
  48   1      
  49   1              // Xoa man hinh
  50   1              WriteCommand(0x01);
  51   1      }
  52          void DisplayText(void)
  53          {
  54   1              // Dich con tro den vi tri thu 2, dong thu nhat
  55   1              WriteCommand(0x81);
C51 COMPILER V7.08   MAIN                                                                  11/27/2006 23:20:45 PAGE 2   

  56   1              SendString2LCD(string1);
  57   1              // Dich con tro den dau dong thu hai
  58   1              WriteCommand(0xC0);
  59   1              SendString2LCD(string2);
  60   1      }
  61          void WriteLCD(unsigned char x)
  62          {
  63   1              LCD_RW = 0;
  64   1              LCD_DATA = x;
  65   1      
  66   1              LCD_E = 1;
  67   1              LCD_E = 0;
  68   1              Delay(5);
  69   1      }
  70          void WriteCommand(unsigned char command)
  71          {
  72   1              LCD_RS = 0;
  73   1              WriteLCD(command);
  74   1      }
  75          void WriteCharacter(unsigned char character)
  76          {
  77   1              LCD_RS = 1;
  78   1              WriteLCD(character);
  79   1      }
  80          void SendString2LCD(unsigned char code *p)
  81          {
  82   1              unsigned char i=0;
  83   1              while(p[i]!=0)
  84   1              {
  85   2                      WriteCharacter(p[i]);
  86   2                      i++;
  87   2                      Delay(200);
  88   2              }
  89   1      }
  90          // Chuong trinh chinh
  91          void main(void)
  92          {
  93   1              // Khoi tao he thong
  94   1              InitSystem();
  95   1              DisplayText();
  96   1              // Vong lap vo tan
  97   1              while(1);
  98   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    170    ----
   CONSTANT SIZE    =     32    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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