time.lst

这是DS1620温度传感器的读写温度程序

C51 COMPILER V8.02   TIME                                                                  07/25/2007 14:04:25 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE TIME
OBJECT MODULE PLACED IN time.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE time.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <time.h>
   2          
   3          unsigned int timeerout=0;
   4          
   5          void DelayMs( unsigned int ms )
   6          {
   7   1              StartTimer( ms );
   8   1              while(  timeerout );
   9   1              StopTimer( );
  10   1      }
  11          
  12          void timer0 (void) interrupt 1 
  13          {
  14   1              if( timeerout!=0 ) timeerout--;
  15   1              
  16   1              TL0 =240;      //12mhz.10ms
  17   1              TH0 =216;
  18   1      }
  19          
  20          
  21          
  22          
  23          void StartTimer( unsigned int ms ) 
  24          {
  25   1              TR0 = 0;//stop timer0
  26   1              ET0 = 0;//disable timer0
  27   1      
  28   1              timeerout = ms;
  29   1      
  30   1              //start timer 0
  31   1              TMOD &= 0xf0;
  32   1              TMOD |= 0x01;//timer0 mod = 1
  33   1      
  34   1              TL0 =240;      //12mhz.10ms
  35   1              TH0 =216;
  36   1      
  37   1              TF0 = 0;//clear int. flag
  38   1              TR0 = 1;//start timer0
  39   1              ET0 = 1;//enable timer
  40   1      }
  41          
  42          void StopTimer( )
  43          {
  44   1              TR0 = 0;//stop timer0
  45   1              ET0 = 0;//disable timer0
  46   1      }
  47          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     69    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
C51 COMPILER V8.02   TIME                                                                  07/25/2007 14:04:25 PAGE 2   

   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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