t2test.lst

该资料详细的介绍了T2定时器计数器的用法与作用

C51 COMPILER V7.02a   T2TEST                                                               03/01/2007 15:20:56 PAGE 1   


C51 COMPILER V7.02a, COMPILATION OF MODULE T2TEST
OBJECT MODULE PLACED IN t2test.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE t2test.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include "STC89C51RC_RD_PLUS.H"
   2          
   3          sbit led = P2^0;
   4          unsigned char count;
   5          
   6          void main()
   7          {
   8   1      /*TMOD = 0X01;
   9   1              TL0 = (65536-50000) % 256;
  10   1              TH0 = (65536-50000) / 256;
  11   1              EA = 1;
  12   1              TR0 = 1;
  13   1              ET0 = 1;*/
  14   1      count =0;
  15   1      T2CON=0x04;
  16   1            T2MOD=0x00;
  17   1      TH2=0x3C;
  18   1            TL2=0xB0;
  19   1            RCAP2H=0x3C;
  20   1            RCAP2L=0xB0;
  21   1            TR2=1;
  22   1            ET2=1;
  23   1      
  24   1              TL2 = (65536-50000) % 256;
  25   1              TH2 = (65536-50000) / 256;
  26   1              EA = 1;
  27   1              TR2 = 1;
  28   1              ET2 = 1;
  29   1      
  30   1              
  31   1      
  32   1              while(1)
  33   1              {
  34   2      
  35   2              }
  36   1      
  37   1      }
  38          
  39          
  40          void timer2 (void) interrupt 5
  41          {
  42   1      EA = 0; 
  43   1      TF2 = 0;
  44   1      
  45   1      TL2 = (65536-50000) % 256;
  46   1              TH2 = (65536-50000) / 256;
  47   1              
  48   1              count ++;
  49   1              
  50   1              if (count == 10)
  51   1              {
  52   2                      
  53   2                      count = 0;
  54   2                      led = !led;
  55   2                              
C51 COMPILER V7.02a   T2TEST                                                               03/01/2007 15:20:56 PAGE 2   

  56   2              }
  57   1                      
  58   1         EA = 1;
  59   1      }
  60          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     71    ----
   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)