series_all.lst

本程序为单片机控制程序

C51 COMPILER V7.50   SERIES_ALL                                                            10/02/2007 08:57:52 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE SERIES_ALL
OBJECT MODULE PLACED IN series_all.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE series_all.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /*********************************************
   2          本程序意在检测按键，将按键对应的值指从串口输出
   3          **********************************************/
   4          #include "STC89C51.h"
   5          #define uch unsigned char
   6          
   7              sbit  P20=P2^0;
   8                  sbit  P21=P2^1;
   9                  sbit  P22=P2^2;
  10                  sbit  P23=P2^3; 
  11                  uch key=0;
  12          
  13                  void init()
  14                  {
  15   1              P20=1;
  16   1              P21=1;
  17   1              P22=1;
  18   1              P23=1;
  19   1              }
  20          
  21                  void keyscan()
  22                  {
  23   1                      {
  24   2                      P23=0;
  25   2                              if (P23==0)
  26   2                              {
  27   3                                      if (P22==0)
  28   3                                      key=3;
  29   3                                      if (P21==0)
  30   3                                      key=5;
  31   3                                      if (P20==0)
  32   3                                      key=1;
  33   3                                      init();
  34   3                              }
  35   2                              P22=0;
  36   2                              if (P22==0)
  37   2                              {
  38   3                                      if (P21==0)
  39   3                                      key=4;
  40   3                                      if (P20==0)
  41   3                                      key=2;
  42   3                                      init();
  43   3                              }
  44   2                      }
  45   1              
  46   1              }
  47                  
  48                  void series()
  49                  {
  50   1                      TMOD=0X20;  //t1工作于方式2自动重装8位计数器
  51   1                      TL1=0xfd;
  52   1                      TH1=0xfd;
  53   1                      SCON=0x50;  //01010000,方式一，允许接收
  54   1                      PCON=0x00; 
  55   1                      TR1=1;      //允许T1运行
C51 COMPILER V7.50   SERIES_ALL                                                            10/02/2007 08:57:52 PAGE 2   

  56   1                      SBUF=key;   /*启动数据发送*/
  57   1                      while(TI==0);//检测发送状态
  58   1                      TI=0;
  59   1              }
  60                  
  61          
  62              void main()
  63                  {
  64   1                      if (RI==1)
  65   1                      {
  66   2                              key=SBUF;
  67   2                              RI=0;
  68   2                      }
  69   1              keyscan();
  70   1              if (key==1)
  71   1                      series();
  72   1              
  73   1              }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    102    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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