005b.lst

盛方学习板单片机实验全部源码 新手宝典

C51 COMPILER V7.01  005B                                                                   04/13/2006 17:43:27 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE 005B
OBJECT MODULE PLACED IN 005B.OBJ
COMPILER INVOKED BY: D:\学习软件\单片机编译软件\keilc51\C51\BIN\C51.EXE 005B.C BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg51.h>
   2          #define uchar unsigned char
   3          uchar *p=0x20;          /*指针p指向内部RAM 20h单元*/
   4          void com_init()         /*串口初始化程序*/
   5          {
   6   1         TMOD=0x20;
   7   1         TH1=0xfa;
   8   1         TL1=0xfa;
   9   1         TR1=1;
  10   1         SCON=0x50;
  11   1      }
  12          
  13          reciv()
  14          {
  15   1         uchar i;                     /*发送长度*/
  16   1         uchar j=0;           /*累加和清0*/
  17   1      recivDT:  
  18   1         while( !RI);
  19   1         i=SBUF;              /*接收发送长度*/
  20   1         for(; i; i--)
  21   1           {
  22   2              while( !RI);
  23   2              *p=SBUF;
  24   2               p++;
  25   2               j=j+ *p;               /*计算累加效验和*/
  26   2           }
  27   1          while( !RI);                /*等待接收效验码*/
  28   1          if (j==SBUF)                /*接收正确则发送0，否则发送ff*/
  29   1             {
  30   2               SBUF=0x00;
  31   2                       j=0;
  32   2               while( !RI);
  33   2               return;
  34   2              }
  35   1          else
  36   1             {
  37   2                SBUF=0xff;
  38   2                        j=0;
  39   2                while( !RI);
  40   2                goto recivDT;
  41   2              }
  42   1      
  43   1      }
  44             
  45          main()
  46          {
  47   1        com_init();
  48   1        reciv();
  49   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     96    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
C51 COMPILER V7.01  005B                                                                   04/13/2006 17:43:27 PAGE 2   

   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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