key.lst

tea5767_102模块,i2c总线控制方式

C51 COMPILER V7.07   KEY                                                                   08/22/2008 23:25:40 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN key.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE key.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include "key.h"
   2          #include "global.h"
   3          #include <reg52.h>
   4          #include <intrins.h>
   5          
   6          //P04,P05;二键
   7          
   8          
   9          unsigned char Read_Key(void)
  10          {
  11   1        unsigned char Key = 0x00;
  12   1      
  13   1        P0 |= 0x30;
  14   1      
  15   1        delay_us(10);
  16   1      
  17   1        Key = P0 & 0x30;
  18   1        switch  ( Key )
  19   1        {
  20   2        case 0x10: return 1;
  21   2        case 0x20: return 2;
  22   2        case 0x00: return 3;
  23   2        default: return 0xF0;
  24   2        }
  25   1        
  26   1      
  27   1      
  28   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     36    ----
   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)