串行双工.lst

本程序是用C51编写的

C51 COMPILER V8.02   串行薩工                                                              05/14/2009 11:18:44 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE 串行薩工
OBJECT MODULE PLACED IN 串行双工.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 串行双工.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <REGX51.H>
   2          #define uchar unsigned char
   3          void main()
   4          {
   5   1              uchar temp;
   6   1              
   7   1              SCON=0x50;      //设置串口工作在模式1
   8   1              TMOD=0x20;      // 定时器1工作在模式2
   9   1              TH1=0x0e6;         //设定波特率1200波特
  10   1              TR1=1;             //启动定时器1
  11   1              P1=0xff;
  12   1              temp=P1;
  13   1              P2=0xff;
  14   1      //      EA=1;
  15   1      //      ES=1;
  16   1              while(1)
  17   1                      {
  18   2                              if(RI==1)                               //查询方式工作 ，接收
  19   2                                      {
  20   3                                              P2=SBUF;
  21   3                                              RI=0;
  22   3                                       }
  23   2                   else                                                        //发送
  24   2                                       {
  25   3                                              
  26   3                                              if(temp!=P1)
  27   3                                              {       
  28   4                                                      temp=P1;
  29   4                                                      SBUF=P1;
  30   4                              while(TI==0);
  31   4                                                      TI=0;
  32   4                                              }       
  33   3                                        }
  34   2                      }
  35   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     46    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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