pp40.lst

51单片机开发与应用技术详解(珍藏版)PPT及源码

C51 COMPILER V8.08   PP40                                                                  06/27/2008 23:15:05 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE PP40
OBJECT MODULE PLACED IN PP40.OBJ
COMPILER INVOKED BY: C:\Program Files\keil\C51\BIN\C51.EXE PP40.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>                                               //头文件
   2          
   3          sbit STROBE=P1^7;                                               //STROBE引脚
   4          sbit BUSY=P3^6;                                         //BUSY引脚
   5          sbit ACK=P3^7;                                          //ACK引脚
   6          
   7          unsigned char code Message[]=                   //一行消息
   8              {0x48,0x65,0x6c,0x6c,0x6f,0x20,0x77,0x6f,0x6c,0x6d,0x21}; 
   9          
  10          void PP40Char(unsigned char ch)                         //PP40打印单个字符
  11          {
  12   1         P1=ch;                                       //字符输出到DATA
  13   1         STROBE=0;                                            //STROBE低电平
  14   1         STROBE=1;                            //STROBE上升沿
  15   1         while(BUSY);                                         //查询等待PP40打印结束
  16   1      }
  17          
  18          void PP40Line(void)                                     //PP40打印一行
  19          { 
  20   1        unsigned char i;
  21   1         for (i=0;i<=10;i++)                                  //循环打印输出一行信息
  22   1      { 
  23   2             P1=Message[i];                                   //字符输出到DATA
  24   2             STROBE=0;                                                //STROBE低电平
  25   2             STROBE=1;                                                //STROBE高电平
  26   2             while(BUSY);                                     //查询等待PP40打印结束
  27   2         }
  28   1      }
  29          
  30          void main(void) 
  31          {
  32   1         int i;
  33   1         for(i=0;i<10;i++)
  34   1         {
  35   2              PP40Char(0x2A);                                 //打印输出"*"
  36   2      }
  37   1         PP40Char(0x0D);                                      //换行
  38   1         PP40Line();                                          //打印输出一行消息"Hello world!"
  39   1         PP40Char(0x0D);                                      //换行
  40   1         PP40Char(0x57);                                      //打印输出字符"W"
  41   1         PP40Char(0x45);                                      //打印输出字符"E"
  42   1         PP40Char(0x4C);                                      //打印输出字符"L"
  43   1         PP40Char(0x43);                                      //打印输出字符"C"
  44   1         PP40Char(0x4F);                                      //打印输出字符"O"
  45   1         PP40Char(0x4D);                                      //打印输出字符"M"
  46   1         PP40Char(0x45);                                      //打印输出字符"E"
  47   1         PP40Char(0x0D);                                      //换行
  48   1         while(1)                                                     //空循环
  49   1         {
  50   2         }
  51   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    105    ----
C51 COMPILER V8.08   PP40                                                                  06/27/2008 23:15:05 PAGE 2   

   CONSTANT SIZE    =     11    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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