keyboard.lst

温度控制系统——毕业设计

C51 COMPILER V7.06   KEYBOARD                                                              12/30/2010 18:34:00 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE KEYBOARD
OBJECT MODULE PLACED IN .\keyboard.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ..\4.keyboard\keyboard.c BROWSE DEBUG OBJECTEXTEND PRINT(.\keyboard.lst) OB
                    -JECT(.\keyboard.obj)

stmt level    source

   1          #include "reg52.h"
   2          #include "delay.h"
   3          sbit key_int=P3^2;
   4          
   5          unsigned char key;              //全局变量，为中断函数返回的键值
   6          void ini_key()
   7          {
   8   1              IT0=1;          //下降沿触发
   9   1              EX0=1;          //开中断0
  10   1              EA=1;           //开总中断
  11   1      }
  12          
  13          void get_key()interrupt 0 using 1
  14          {
  15   1              unsigned char temp;
  16   1              if(!key_int)
  17   1              {
  18   2                      delay_ms(2);
  19   2                      temp=P1&0x0f;
  20   2                      key=0;
  21   2                      switch(temp)
  22   2                      {
  23   3                              case 0x0E: key=1;break;
  24   3                              case 0x0D: key=2;break;
  25   3                              case 0x0B: key=3;break;
  26   3                              case 0x07: key=4;break;
  27   3                      }
  28   2                      delay_ms(10);
  29   2              }
  30   1              while(!key_int);
  31   1              delay_ms(80);
  32   1              while(!key_int);
  33   1              delay_ms(40);
  34   1              IE0=0;
  35   1      }       
  36          
  37          
  38          
  39                  
  40          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    110    ----
   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)