key.lst

键盘的测试功能

C51 COMPILER V7.00  KEY                                                                    09/08/2007 17:46:25 PAGE 1   


C51 COMPILER V7.00, 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 <REG52.H>   
   2          
   3                                   /* 8MHz下,定时器方式1的10MS时间中断初值为:e5f5*/
   4          #define INT0TL0 0xf5     /* 11.0592MHz下,定时器方式1的10MS时间中断初值为:DC00 *///5ms--0xee00
   5          #define INT0TH0 0xe5     /* 22.1184MHz下,定时器方式1的10MS时间中断初值为:B800 *///
   6          
   7          sbit led = P2^2;
   8          sbit key = P2^3;
   9          
  10          unsigned char delay, delayd;
  11          
  12          
  13          //MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM 中断程序 MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  14          //*** T0 中断，10ms一次**********************************************************/
  15           void int_time0(void) interrupt 1
  16          {
  17   1          TL0 = INT0TL0;
  18   1          TH0 = INT0TH0;
  19   1      /*
  20   1               if(++delay == 50) 
  21   1               {
  22   1                      delay = 0;
  23   1                      led = !led;
  24   1               }
  25   1      */
  26   1              if(key == 0) 
  27   1              {
  28   2                      if(delay != 255) delay++;               
  29   2              }
  30   1      
  31   1              else
  32   1              {
  33   2                      if(delayd != 255) delayd++;
  34   2                      if(delayd == 200) 
  35   2                      {
  36   3                              delay = 0;
  37   3                              delayd = 0;
  38   3                              led = 1;
  39   3                      }
  40   2              }
  41   1      
  42   1              if(delay == 200) led = 0;
  43   1      
  44   1              
  45   1      
  46   1      
  47   1      }
  48          
  49          main()
  50          {
  51   1              TMOD  = 0x01;                     /* timer 1 mode 2: 8-Bit reload; timer 0 mode 1: 16-Bit timer */
  52   1         TL0 = INT0TL0;    TH0 = INT0TH0;
  53   1              TR0 = 1;  TR2 = 1;
  54   1         IE = 0x82;
  55   1      
C51 COMPILER V7.00  KEY                                                                    09/08/2007 17:46:25 PAGE 2   

  56   1              while(1)
  57   1              {
  58   2      ;
  59   2              }
  60   1      }
  61          
  62          
  63          
  64          
  65          
  66          
  67          
  68          
  69          
  70          
  71          
  72          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     72    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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