simple_eos.lst

使用Keil uVision2下C语言开发的防盗报警系统

C51 COMPILER V6.21  SIMPLE_EOS                                                             04/16/2007 01:05:51 PAGE 1   


C51 COMPILER V6.21, COMPILATION OF MODULE SIMPLE_EOS
OBJECT MODULE PLACED IN Simple_EOS.OBJ
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE Simple_EOS.c OPTIMIZE(6,SPEED) BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*------------------------------------------------------------------*-
   2          
   3             Simple_EOS.C (v1.00)
   4          
   5            ------------------------------------------------------------------
   6          
   7             Main file for Simple Embedded Operating System (sEOS) for 8051. 
   8          
   9             Part of intruder alarm case study (Chapter 10).
  10          
  11          
  12             COPYRIGHT
  13             ---------
  14          
  15             This code is associated with the book:
  16          
  17             EMBEDDED C by Michael J. Pont 
  18             [Pearson Education, 2002: ISBN: 0-201-79523-X].
  19          
  20             This code is copyright (c) 2001 by Michael J. Pont.
  21           
  22             See book for copyright details and other information.
  23          
  24          -*------------------------------------------------------------------*/
  25          
  26          #include "Main.H"
  27          #include "Simple_EOS.H"
  28          
  29          #include "PC_O.H"
  30          #include "Intruder.H"
  31          
  32          // ------ Private variable definitions -----------------------------
  33          static tByte Call_count_G;
  34          
  35          
  36          /*------------------------------------------------------------------*-
  37            
  38            sEOS_ISR()
  39          
  40            Invoked periodically by Timer 2 overflow: 
  41            see sEOS_Init_Timer2() for timing details.
  42          
  43          -*------------------------------------------------------------------*/
  44          void sEOS_ISR() interrupt INTERRUPT_Timer_2_Overflow
  45             {
  46   1         TF2 = 0;  // Must manually reset the T2 flag   
  47   1      
  48   1         //===== USER CODE - Begin =======================================
  49   1         // Call RS-232 update function every 5ms
  50   1         PC_LINK_O_Update();
  51   1      
  52   1         // This ISR is called every 5 ms
  53   1         // - only want to update intruder every 50 ms
  54   1         if (++Call_count_G == 10)
  55   1            {
C51 COMPILER V6.21  SIMPLE_EOS                                                             04/16/2007 01:05:51 PAGE 2   

  56   2            // Time to update intruder alarm
  57   2            Call_count_G = 0;
  58   2      
  59   2            // Call intruder update function
  60   2            INTRUDER_Update();
  61   2            }
  62   1         //===== USER CODE - End =========================================
  63   1         }
  64          
  65          /*------------------------------------------------------------------*-
  66            
  67            sEOS_Init_Timer2()
  68          
  69            Sets up Timer 2 to drive the simple EOS.
  70          
  71            Parameter gives tick interval in MILLISECONDS.
  72          
  73            Max tick interval is ~60ms (12 MHz oscillator).
  74          
  75            Note: Precise tick intervals are only possible with certain 
  76            oscillator / tick interval combinations.  If timing is important,
  77            you should check the timing calculations manually. 
  78          
  79          -*------------------------------------------------------------------*/
  80          void sEOS_Init_Timer2(const tByte TICK_MS)
  81             {
  82   1         tLong Inc;
  83   1         tWord Reload_16;
  84   1         tByte Reload_08H, Reload_08L;
  85   1      
  86   1         // Timer 2 is configured as a 16-bit timer,
  87   1         // which is automatically reloaded when it overflows
  88   1         T2CON   = 0x04;   // Load Timer 2 control register
  89   1      
  90   1         // Number of timer increments required (max 65536)
  91   1         Inc = ((tLong)TICK_MS * (OSC_FREQ/1000)) / (tLong)OSC_PER_INST;   
  92   1      
  93   1         // 16-bit reload value
  94   1         Reload_16 = (tWord) (65536UL - Inc);
  95   1      
  96   1         // 8-bit reload values (High & Low)
  97   1         Reload_08H = (tByte)(Reload_16 / 256);
  98   1         Reload_08L = (tByte)(Reload_16 % 256);
  99   1      
 100   1         // Used for manually checking timing (in simulator)
 101   1         //P2 = Reload_08H;
 102   1         //P3 = Reload_08L;
 103   1      
 104   1         TH2     = Reload_08H;   // Load T2 high byte
 105   1         RCAP2H  = Reload_08H;   // Load T2 reload capt. reg. high byte
 106   1         TL2     = Reload_08L;   // Load T2 low byte
 107   1         RCAP2L  = Reload_08L;   // Load T2 reload capt. reg. low byte
 108   1      
 109   1         // Timer 2 interrupt is enabled, and ISR will be called 
 110   1         // whenever the timer overflows.
 111   1         ET2     = 1;
 112   1      
 113   1         // Start Timer 2 running
 114   1         TR2   = 1;     
 115   1      
 116   1         EA = 1;            // Globally enable interrupts
 117   1         }
C51 COMPILER V6.21  SIMPLE_EOS                                                             04/16/2007 01:05:51 PAGE 3   

 118          
 119          /*------------------------------------------------------------------*-
 120            
 121            sEOS_Go_To_Sleep()
 122          
 123            This operating system enters 'idle mode' between clock ticks
 124            to save power.  The next clock tick will return the processor
 125            to the normal operating state.
 126          
 127            *** ADAPT AS REQUIRED FOR YOUR HARDWARE ***
 128          
 129          -*------------------------------------------------------------------*/
 130          void sEOS_Go_To_Sleep(void)
 131             {
 132   1         PCON |= 0x01;    // Enter idle mode (generic 8051 version)
 133   1         }
 134          
 135          /*------------------------------------------------------------------*-
 136            ---- END OF FILE -------------------------------------------------
 137          -*------------------------------------------------------------------*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    136    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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