key.lst

移植于51单片机上的ucos。SCH51-OS是整个工程项目

C51 COMPILER V8.05a   KEY                                                                  11/09/2008 23:18:20 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN key.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE key.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "ExtDef.h"
   2          
   3          uchar xdata  RowOut  _at_ 0x8000;
   4          uchar xdata  ColIn  _at_  0x8003;
   5          uchar Key=Nothing;                //键盘缓冲寄存器（公有数据）
   6          uchar Fn_Key;                    //功能键
   7          
   8          extern void delay(int c);
   9          //*********************************************************************
  10          //= 函数原型: void KEYPAD_Scan(char* const Key, char* const Fn_Key)
  11          //= 功    能: 扫描键盘
  12          //= 参    数: 普通键New_Key，功能键New_FuncKey,缓存器的指针
  13          //= 返 回 值:
  14          //= 函数性质：私有函数
  15          //**********************************************************************
  16          
  17          void KEYPAD_Scan(char* const Key, char* const Fn_Key)
  18          {
  19   1        RowOut = 0x70;   //Scan Row4
  20   1       //       delay(1);
  21   1            if ((ColIn&0xF0) == 0xE0) *Fn_Key = 'o'; //ON键
  22   1            if ((ColIn&0xF0) == 0xD0) *Key    =  0;
  23   1            if ((ColIn&0xF0) == 0xB0) *Fn_Key = '=';
  24   1            if ((ColIn&0xF0) == 0x70) *Key    = '+';
  25   1      
  26   1        RowOut = 0xB0;   //Scan Row3
  27   1       //       delay(1);
  28   1            if ((ColIn&0xF0) == 0xE0) *Key = 1;
  29   1            if ((ColIn&0xF0) == 0xD0) *Key = 2;
  30   1            if ((ColIn&0xF0) == 0xB0) *Key = 3;
  31   1            if ((ColIn&0xF0) == 0x70) *Key = '-';
  32   1      
  33   1        RowOut = 0xD0;   //Scan Row2
  34   1        //      delay(1);
  35   1            if ((ColIn&0xF0) == 0xE0) *Key = 4;
  36   1            if ((ColIn&0xF0) == 0xD0) *Key = 5;
  37   1            if ((ColIn&0xF0) == 0xB0) *Key = 6;
  38   1            if ((ColIn&0xF0) == 0x70) *Key = '*';
  39   1      
  40   1        RowOut = 0xE0;   //Scan Row1   
  41   1       //     delay(1);
  42   1            if ((ColIn&0xF0) == 0xE0) *Key = 7;
  43   1            if ((ColIn&0xF0) == 0xD0) *Key = 8;
  44   1            if ((ColIn&0xF0) == 0xB0) *Key = 9;
  45   1            if ((ColIn&0xF0) == 0x70) *Key = '/';
  46   1      
  47   1        RowOut = 0xF0; 
  48   1        //      delay(1);     
  49   1      }
  50          //*********************************************************************
  51          //= 函数原型: void KEY_Update()
  52          //= 功    能: 键盘缓冲寄存器更新程序. 普通键Key, 功能键Fn_Key
  53          //= 参    数: 
  54          //= 返 回 值:
  55          //= 函数性质：公有函数
C51 COMPILER V8.05a   KEY                                                                  11/09/2008 23:18:20 PAGE 2   

  56          //**********************************************************************
  57          void KEY_Update() 
  58          {
  59   1         static uchar delay=20;               //去抖动延时
  60   1         static bit delaying=0;               //标识是否正在延时
  61   1      
  62   1         if(delaying==0)
  63   1         {
  64   2             if(Key==Nothing)            //如果Key缓存器中的数据未被读取，则不扫描键盘
  65   2                 {
  66   3                    KEYPAD_Scan(&Key,&Fn_Key);           //扫描键盘
  67   3                        if(Key!=Nothing)
  68   3                        {
  69   4                           delaying=1; 
  70   4                               Key=Nothing; 
  71   4      
  72   4                         }
  73   3                      }
  74   2         }
  75   1         else
  76   1         {
  77   2            if(delay==0)                               //延时结束
  78   2                {
  79   3                   KEYPAD_Scan(&Key,&Fn_Key);    //读取键盘
  80   3                       delay=20;
  81   3                       delaying=0;
  82   3                }
  83   2                else   delay--;                       //延时减一
  84   2         }
  85   1      }                                                  
  86          
  87          
  88            
  89          
  90          
  91              


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    425    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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