serial.lst

单片机控制串口通信

C51 COMPILER V7.08   SERIAL                                                                02/13/2006 15:25:42 PAGE 1   


C51 COMPILER V7.08, COMPILATION OF MODULE SERIAL
OBJECT MODULE PLACED IN serial.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE serial.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          
   2          
   3          #include<reg51.h>
   4          //------------------------------------------------
   5          char getData(void)
   6          {
   7   1      char c;
   8   1        while (!RI);
   9   1        c=SBUF;
  10   1        RI=0;
  11   1        return (c);
  12   1      }
  13          //-------------------------------------------------
  14          char sendData(char c)
  15            {
  16   1        while (!TI);
  17   1        TI = 0;
  18   1        return (SBUF = c);
  19   1      }
  20          //-------------------------------------------------
  21          void init(void)
  22          {
  23   1        TMOD=0x20;//mode 2 auto reload
  24   1        TL1=0xfd;
  25   1        TH1=0xfd;//baudRate:9600
  26   1      
  27   1        SCON=0x52; //sm0,sm1,sm2,ren,tb,rb8,ti,ri
  28   1        PCON&=0x7f;//smod=0;
  29   1        TR1=1;//timer1 reset
  30   1      }
  31          
  32          main()
  33          {
  34   1        char c;
  35   1        init();
  36   1        while(1)
  37   1        {
  38   2          c=getData();
  39   2          switch (c)
  40   2          {
  41   3            case '1':
  42   3              sendData('\n');
  43   3                  sendData('a');
  44   3              sendData('\n');
  45   3                  break;
  46   3                case '2':
  47   3              sendData('\n');
  48   3                  sendData('b');
  49   3              sendData('\n');
  50   3                  break;
  51   3                case '3':
  52   3              sendData('\n');
  53   3                  sendData('c');
  54   3              sendData('\n');
  55   3                      break;
C51 COMPILER V7.08   SERIAL                                                                02/13/2006 15:25:42 PAGE 2   

  56   3                default:
  57   3              sendData('\n');
  58   3                  sendData('M');
  59   3              sendData('a');
  60   3              sendData('r');
  61   3              sendData('s');
  62   3              sendData('-');
  63   3              sendData('E');
  64   3              sendData('D');
  65   3              sendData('A');
  66   3              sendData('-');
  67   3              sendData('S');
  68   3              sendData(' ');
  69   3              sendData('W');
  70   3              sendData('e');
  71   3              sendData('l');
  72   3              sendData('c');
  73   3              sendData('o');
  74   3              sendData('m');
  75   3              sendData('!');
  76   3              sendData('\n');
  77   3                      break;
  78   3          }
  79   2        }
  80   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    188    ----
   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)