dizhi3#.lst

rs485多机通信

C51 COMPILER V7.06   DIZHI3_                                                               11/12/2007 00:24:55 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE DIZHI3_
OBJECT MODULE PLACED IN dizhi3#.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE dizhi3#.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

*** WARNING C500 IN LINE 1 OF DIZHI3#.C: MISSING DEVICE (SECURITY KEY NOT FOUND)
   1          
   2          #include<reg51.h>
   3          #include<absacc.h>
   4          #include<intrins.h>
   5          
   6          unsigned char serial_receiver;
   7          
   8          sbit P3_5=P3^5;
   9          
  10          /****************************************
  11          
  12          串行口中断子程序
  13          
  14          ****************************************/
  15          
  16          void serial (void) interrupt 4 using 1
  17          {
  18   1                      ES=0;
  19   1                      RI=0;
  20   1                      if(SBUF==0x03)
  21   1                      {       
  22   2                                      P3_5=1; //将487控制端置位准备好发送
  23   2                                      SM2=0;  //将数据发送控制位置0
  24   2                                      P1=P2;//将要发送的数据显示在P1口
  25   2                                      SBUF=P2;//发送数据
  26   2                                      while(TI!=1);TI=0;//等待并判断数据发送完毕
  27   2                      }
  28   1                      SM2=1;//将数据地址控制位置1为接收地址做准备
  29   1                      ES=1; //开中断
  30   1                      P3_5=0;//将487设置为接收模式
  31   1      }
  32          
  33          /*****************主程序******************/
  34          
  35          void main(void)
  36          {
  37   1               
  38   1                P1=0x00;
  39   1                TMOD=0x20;
  40   1                TL1=0xfd;
  41   1                TH1=0xfd;
  42   1                PCON=0x00;
  43   1                TR1=1;
  44   1                SCON=0xf0;
  45   1                EA=1;
  46   1                ES=1;
  47   1                P3_5=0;
  48   1            P2=0X00;
  49   1                while(1)
  50   1                {
  51   2                              _nop_();
  52   2                              
  53   2                }
  54   1      
C51 COMPILER V7.06   DIZHI3_                                                               11/12/2007 00:24:55 PAGE 2   

  55   1      }
  56          
  57          
  58          
  59          
  60          
  61          
  62          
  63          
  64          
  65          
  66          
  67          
  68          
  69          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     69    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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