cloc_mx4.lst

时间触发嵌入式系统设计模式:使用8051系列微控制器开发可靠应用

C51 COMPILER V6.10  CLOC_MX4                                                               04/09/2001 15:01:25 PAGE 1   


C51 COMPILER V6.10, COMPILATION OF MODULE CLOC_MX4
OBJECT MODULE PLACED IN .\Cloc_Mx4.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE .\Cloc_Mx4.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*------------------------------------------------------------------*-
   2          
   3             Cloc_Mx4.C (v1.00)
   4          
   5            ------------------------------------------------------------------
   6          
   7             Simple library function for keeping track of elapsed time 
   8            
   9             This version for (Mx) LED display
  10          
  11          
  12             COPYRIGHT
  13             ---------
  14          
  15             This code is from the book:
  16          
  17             PATTERNS FOR TIME-TRIGGERED EMBEDDED SYSTEMS by Michael J. Pont 
  18             [Pearson Education, 2001; ISBN: 0-201-33138-1].
  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 "Port.h"
  28          
  29          #include "Cloc_Mx4.h"
  30          
  31          // ------ Public variable declarations -----------------------------
  32          
  33          extern tByte LED_Mx4_Data_G[4];
  34          extern tByte code LED_Table_G[20];
  35          
  36          // ------ Private variable definitions------------------------------
  37          
  38          // Time variables
  39          static tByte Hou_G, Min_G, Sec_G; 
  40          
  41          /*------------------------------------------------------------------*-
  42          
  43            CLOCK_LED_Time_Update()
  44          
  45            Updates the global time variables.
  46          
  47            *** Must be scheduled once per second ***
  48          
  49          -*------------------------------------------------------------------*/
  50          void CLOCK_LED_Time_Update(void)     
  51             {
  52   1         bit Min_update = 0;
  53   1         bit Hou_update = 0;
  54   1      
  55   1         if (++Sec_G == 60)  
C51 COMPILER V6.10  CLOC_MX4                                                               04/09/2001 15:01:25 PAGE 2   

  56   1            { 
  57   2            Sec_G = 0;
  58   2            Min_update = 1;
  59   2            
  60   2            if (++Min_G == 60)  
  61   2               {
  62   3               Min_G = 0;
  63   3               Hou_update = 1;
  64   3                 
  65   3               if (++Hou_G == 24)  
  66   3                  { 
  67   4                  Hou_G = 0;
  68   4                  }
  69   3               }
  70   2            }
  71   1      
  72   1         if (Min_update)
  73   1            {
  74   2            // Need to update the minutes data
  75   2            // (both digits)
  76   2            LED_Mx4_Data_G[1] = LED_Table_G[Min_G / 10];
  77   2            LED_Mx4_Data_G[0] = LED_Table_G[Min_G % 10];
  78   2            }
  79   1      
  80   1         // We don't display seconds in this version.
  81   1         // We simply use the seconds data to turn on and off the decimal
  82   1         // point between hours and minutes 
  83   1         if ((Sec_G % 2) == 0)
  84   1            {
  85   2            LED_Mx4_Data_G[2] = LED_Table_G[Hou_G % 10];
  86   2            }
  87   1         else
  88   1            {
  89   2            LED_Mx4_Data_G[2] = LED_Table_G[(Hou_G % 10) + 10];
  90   2            }
  91   1         
  92   1         if (Hou_update)
  93   1            {
  94   2            // Need to update the 'tens of hours' data
  95   2            LED_Mx4_Data_G[3] = LED_Table_G[Hou_G / 10];
  96   2            }
  97   1         }
  98          
  99          /*------------------------------------------------------------------*-
 100            ---- END OF FILE -------------------------------------------------
 101          -*------------------------------------------------------------------*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    115    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       2
END OF MODULE INFORMATION.


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