key_int1_share.lst

EasyStudy51-II单片机开发系统的库函数源代码.包含了EasyStudy51-II硬件的全部驱动.

C51 COMPILER V7.06   KEY_INT1_SHARE                                                        11/06/2008 01:10:16 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE KEY_INT1_SHARE
OBJECT MODULE PLACED IN key_int1_share.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE c51\key_int1_share.c INCDIR(.\Target\INC\) DEBUG OBJECTEXTEND PRINT(.\key_i
                    -nt1_share.lst) OBJECT(key_int1_share.obj)

stmt level    source

   1          
   2          
   3          #include "AT89X52.h"
   4          #include "ES51_II.h"
   5          #include "ES51_II_LIB.h"
   6          
   7          
   8          unsigned char KeyVal = 0x0f;
   9          
  10          
  11          //      外部中断1初始化程序,KEY1~KEY4共享
  12          void INT1_Init_KeyShare(void)
  13          {
  14   1              KEYPORT |= 0x0f;                //      写1到端口,不改变高四位状态(为数码管控制端)
  15   1              IT1 = 1;                                //      中断触发方式选择:下降沿触发
  16   1              EX1 = 1;                                //      允许INT0中断
  17   1      }
  18          
  19          
  20          
  21          //      外部中断1中断程序，四个键[KEY1~KEY4]共享
  22          void INT1_Key(void)     interrupt 2 //using 0
  23          {
  24   1              unsigned char i = 200;
  25   1              while(i--);                             //      延时,
  26   1              KeyVal = KEYPORT&0x0f;  //      读取键值
  27   1              i = 100;
  28   1              while(i--);                             //      延时,
  29   1      }
  30          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     50    ----
   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)