点对点通信 (从单片机).lst

在keilc和proteus下进行点对点通信的开发模拟

C51 COMPILER V7.09   点对点蚠信__从单片籣_                                                 05/24/2008 00:22:24 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE 点对点蚠信__从单片籣_
OBJECT MODULE PLACED IN 点对点通信 (从单片机).OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE 点对点通信 (从单片机).c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg51.h>
   2          unsigned char data Rdata[10];
   3          unsigned char data cnt=0,sum=0,CM;
   4          unsigned char data linksignal,resendsignal;
   5          
   6          void delay1s(void)
   7          {
   8   1        unsigned char i,j,k;
   9   1        for(k=100;k>0;k--)
  10   1        for(i=20;i>0;i--)
  11   1        for(j=248;j>0;j--);
  12   1      }
  13          
  14          void main(void)
  15          {
  16   1      TH1=0xf4;
  17   1      TL1=0xf4;
  18   1      EA=0;
  19   1      TR1=1;
  20   1      TMOD=0x20;
  21   1      PCON=0x00;
  22   1      SCON=0x50;
  23   1      //等待从单片机联系信号0xE0，并返回应答信号0xE1
  24   1        do
  25   1        {
  26   2        while(RI==0);
  27   2        RI=0;
  28   2        linksignal=SBUF;
  29   2        }
  30   1        while(linksignal!=0xE0);
  31   1        SBUF=0xE1;
  32   1        while(TI==0);
  33   1        TI=0;
  34   1      //从单片机接收数据，并验证校验和
  35   1        do
  36   1        {
  37   2          do
  38   2          {
  39   3           while(RI==0);
  40   3           RI=0;
  41   3           Rdata[cnt]=SBUF;
  42   3           sum=sum+Rdata[cnt];
  43   3           cnt++;
  44   3          }
  45   2          while(cnt<10);
  46   2        
  47   2        while(RI==0);
  48   2        RI=0;
  49   2        CM=SBUF;
  50   2        
  51   2        if(sum!=CM)
  52   2          {
  53   3          resendsignal=1;
  54   3          }
  55   2        else
C51 COMPILER V7.09   点对点蚠信__从单片籣_                                                 05/24/2008 00:22:24 PAGE 2   

  56   2          {
  57   3          resendsignal=0;
  58   3          }
  59   2        
  60   2        SBUF=resendsignal;
  61   2        while(TI==0);
  62   2        TI=0;
  63   2        
  64   2        if(resendsignal==1)
  65   2          {
  66   3          sum=0;
  67   3          cnt=0;
  68   3          }
  69   2        }
  70   1        while(resendsignal==1);
  71   1        while(1)
  72   1        {
  73   2          for(cnt=0;cnt<10;cnt++)
  74   2          {
  75   3          P2=Rdata[cnt];
  76   3          delay1s();
  77   3          }
  78   2        }
  79   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    155    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     15    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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