key.lst

2.4tft彩屏教程

C51 COMPILER V7.06   KEY                                                                   07/12/2010 23:49:26 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN KEY.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE KEY.c BROWSE DEBUG OBJECTEXTEND PRINT(.\obj\KEY.lst)

stmt level    source

   1          
   2          #include <reg52.h>
   3          #include <KEY_SWEEP.H>
   4          
   5          unsigned char Key_Value=0;
   6          unsigned char Key_flag =0;
   7          
   8          /*
   9          void Interrupt0_Key (void)
  10          {
  11                  IT0=1;            //设置下降沿中触发
  12                  EA=1;             //开总中断
  13                  EX0=1;            //开外部中断
  14                  Key_Port=0X0f;
  15          }
  16          */                                                         
  17          unsigned char code Key_code[]=
  18          {
  19                  //p0    p1   p2  p3
  20                  0xee,0xed,0xeb,0xe7,   //p4
  21                  0xde,0xdd,0xdb,0xd7,   //p5
  22                  0xbe,0xbd,0xbb,0xb7,   //p6
  23                  0x7e,0x7d,0x7b,0x77    //p7
  24          };
  25          
  26          //以上为键码，换他们排列顺序就可以坏氐
  27          void Key (void) 
  28          {
  29   1              unsigned char   KeyV_l,KeyV_h,KeyV,i;
  30   1                                      
  31   1              if(Key_Port!=0X0f)                //0000 1111  有按键的时候就可能是0000 1110；
  32   1              {
  33   2                      //Delay();
  34   2                      if(Key_Port!=0X0f)                //0000 1111  有按键的时候就可能是0000 1110；
  35   2                      {
  36   3                              KeyV_l=Key_Port&0x0f; //取出键码的 低4位
  37   3                              Key_Port=0XF0;
  38   3                              KeyV_h=Key_Port&0xf0; //取出键码的 高4位
  39   3                              KeyV=KeyV_h+KeyV_l;       //合并键码
  40   3              
  41   3                              /*************************************
  42   3                          按键编码         对应         键值
  43   3                              Ee   ed   eb  e7                 1      5  9   13
  44   3                              De   dd   db  d7                 2      6  10  14
  45   3                              Be   bd   bb  b7                 3      7  11  15
  46   3                              7e   7d   7b  77                 4      8  12  16
  47   3                              *************************************/
  48   3                              for(i=0;i<16;i++)       //利用键码查找键值
  49   3                              {
  50   4                                      if(Key_code[i]==KeyV)
  51   4                                      Key_Value=(i+1);
  52   4                              }
  53   3                              Key_Port=0X0f;
  54   3                      }
  55   2              }
C51 COMPILER V7.06   KEY                                                                   07/12/2010 23:49:26 PAGE 2   

  56   1      
  57   1              Key_flag =1;
  58   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     51    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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