lesson 8.lst

有51单片机C语言基础后在较短时间内学会51单片机C。

C51 COMPILER V8.05a   LESSON_8                                                             02/05/2009 10:21:09 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE LESSON_8
OBJECT MODULE PLACED IN lesson 8.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE lesson 8.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          sbit rs=P3^0;
   5          sbit en=P3^1;
   6          void delay(uint z);               //延时声明
   7          void write_cmd(uchar cmd);       //写命令声明
   8          void write_data(uchar data1);  //写数据声明
   9          void initial();                           //初始化声明
  10          uchar table1[]="I like MCU!";
  11          uchar table2[]="How are you!";
  12          
  13          void main()
  14          {
  15   1              uchar i;
  16   1              initial();
  17   1          for(i=0;i<11;i++)
  18   1              {
  19   2                      write_data(table1[i]);
  20   2                      delay(20);        //加大延时实现动态显示
  21   2              }
  22   1              //write_cmd(0x01);      //清屏
  23   1              write_cmd(0xd0);    //数据指针设置
  24   1              for(i=0;i<12;i++)
  25   1              {
  26   2                      write_data(table2[i]);
  27   2                      delay(20);              //加大延时实现动态显示
  28   2              }
  29   1              for(i=0;i<16;i++)
  30   1              {
  31   2                      write_cmd(0x1c); //0x18为右移动  0x1c为左移动
  32   2                      delay(200);
  33   2              }
  34   1              while(1);
  35   1      }
  36          
  37          void initial()
  38          {
  39   1              en=0;
  40   1              write_cmd(0x38);        // 16X2 5X8显示
  41   1              write_cmd(0x0f);        //开显示 光标 闪烁
  42   1              write_cmd(0x06);        //地址指针自动加一，不移动
  43   1              write_cmd(0x01);        //清屏
  44   1              write_cmd(0x90);    //数据指针设置
  45   1      }
  46          
  47          void write_cmd(uchar cmd_data)
  48          {
  49   1              rs=0;
  50   1              P2=cmd_data;    delay(1);
  51   1              en=1;   delay(1);
  52   1              en=0;
  53   1      }
  54          
  55          void write_data(uchar data1)
C51 COMPILER V8.05a   LESSON_8                                                             02/05/2009 10:21:09 PAGE 2   

  56          {
  57   1              rs=1;
  58   1              P2=data1;       delay(1);
  59   1              en=1;   delay(1);
  60   1              en=0;
  61   1      }
  62          void delay(uint z)
  63          {
  64   1              uint x,y;
  65   1              for(x=z;x>0;x--)
  66   1                      for(y=110;y>0;y--);
  67   1      }
  68          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    181    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     25       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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