C51 COMPILER V8.02   SCH51                                                                 11/26/2006 21:57:40 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE SCH51
OBJECT MODULE PLACED IN SCH51.OBJ
COMPILER INVOKED BY: D:\Program Files\keil\C51\BIN\C51.EXE SCH51.c COMPACT BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include  "typedef.h"
   2          #include  <AT89X52.h>
   3          #define   SCH_MAX_TASKS    5
   4          
   5          typedef data struct     //定義任務結構
   6          {
   7             void (code * pTask)(void);    
   8             uint  Delay;         
   9             uint  Period;        
  10             uchar RunMe;                           
  11          }sTask;
  12          
  13          sTask SCH_tasks_G[SCH_MAX_TASKS];         //定義任務數據結構
  14          
  15          
  16          //-----------------------任務開始－－－－－－－－－－－－－－－－－－－－－
  17          void SCH_Start(void) 
  18          {
  19   1           EA = 1;
  20   1      }
  21          
  22          //-----------------------系統進入空閑模式，等待下一次刷新－－－－－－－－－
  23          void SCH_Go_To_Sleep()
  24          {
  25   1         PCON |= 0x01;   
  26   1         
  27   1      }
  28          //------------------------任務添加－－－－－－－－－－－－－－－－－－－－－
  29           
  30          uchar SCH_Add_Task(void (code * pFunction)(),const uint DELAY,const uint PERIOD)    
  31          {
  32   1         uchar Index = 0;
  33   1         
  34   1         while ((SCH_tasks_G[Index].pTask != 0) && (Index < SCH_MAX_TASKS))
  35   1         {
  36   2            Index++;                           //查找空的任務指針
  37   2         } 
  38   1         
  39   1           
  40   1         if (Index == SCH_MAX_TASKS)
  41   1          {
  42   2             return 0;  
  43   2          }
  44   1            
  45   1         
  46   1         SCH_tasks_G[Index].pTask  = pFunction;
  47   1         SCH_tasks_G[Index].Delay  = DELAY;            
  48   1         SCH_tasks_G[Index].Period = PERIOD;
  49   1      
  50   1         SCH_tasks_G[Index].RunMe  = 0;
  51   1      
  52   1         return Index; 
  53   1      }
  54          
  55          
C51 COMPILER V8.02   SCH51                                                                 11/26/2006 21:57:40 PAGE 2   

  56          //-----------------------任務刪除－－－－－－－－－－－－－－－－－－－－－－－
  57          
  58          bit SCH_Delete_Task(const uchar TASK_INDEX) 
  59          {
  60   1         
  61   1         if (SCH_tasks_G[TASK_INDEX].pTask == 0)
  62   1         {
  63   2              return 0;
  64   2          }
  65   1            
  66   1         SCH_tasks_G[TASK_INDEX].pTask   = 0x0000;
  67   1         SCH_tasks_G[TASK_INDEX].Delay   = 0;
  68   1         SCH_tasks_G[TASK_INDEX].Period  = 0;
  69   1         SCH_tasks_G[TASK_INDEX].RunMe   = 0;
  70   1      
  71   1         return 0;
  72   1      }
  73          
  74          //------------------------------任務調度－－－－－－－－－－－－－－－－－－－－－
  75          
  76          void SCH_Dispatch_Tasks(void) 
  77          {
  78   1               
  79   1         uchar Index;
  80   1      
  81   1         
  82   1         for (Index = 0; Index < SCH_MAX_TASKS; Index++)
  83   1         {
  84   2            if (SCH_tasks_G[Index].RunMe > 0) 
  85   2             {
  86   3                 (*SCH_tasks_G[Index].pTask)(); 
  87   3                  SCH_tasks_G[Index].RunMe -= 1;   
  88   3      
  89   3              
  90   3              
  91   3               if (SCH_tasks_G[Index].Period == 0)   //刪除只運行一次的任務
  92   3                  {
  93   4                      SCH_Delete_Task(Index);
  94   4                  }
  95   3              }
  96   2         }
  97   1           
  98   1         SCH_Go_To_Sleep();    //單片機進入空閑模式      
  99   1      }
 100          
 101          
 102          //－－－－－－－－－－－－－－－－－任務中斷刷新－－－－－－－－－－－－－－－－－－
 103          
 104          void SCH_Update(void) interrupt 5 
 105          {
 106   1      
 107   1         uchar Index;
 108   1      
 109   1         TF2 = 0; 
 110   1      
 111   1         
 112   1         for (Index = 0; Index < SCH_MAX_TASKS; Index++)
 113   1         {
 114   2           
 115   2            if (SCH_tasks_G[Index].pTask)
 116   2               {
 117   3               if (SCH_tasks_G[Index].Delay == 0)
C51 COMPILER V8.02   SCH51                                                                 11/26/2006 21:57:40 PAGE 3   

 118   3                  {
 119   4                 
 120   4                      SCH_tasks_G[Index].RunMe += 1;  
 121   4      
 122   4                      if (SCH_tasks_G[Index].Period)
 123   4                      {
 124   5                         SCH_tasks_G[Index].Delay = SCH_tasks_G[Index].Period;
 125   5                       }
 126   4                  }
 127   3               else
 128   3                {
 129   4                  
 130   4                              SCH_tasks_G[Index].Delay -= 1;
 131   4                 }
 132   3               }         
 133   2          }
 134   1      }   
 135          
 136          
 137          //－－－－－－－－－－－－－－－－系統初始化－－－－－－－－－－－－－－－－－－－
 138          void SCH_Init_T2(void) 
 139          {
 140   1          uchar i;
 141   1      
 142   1          for (i = 0; i < SCH_MAX_TASKS; i++) 
 143   1          {
 144   2            SCH_Delete_Task(i);
 145   2          }
 146   1      
 147   1           T2CON = 0x04;  
 148   1           T2MOD = 0x00;  
 149   1      
 150   1           TH2    = 0xFC; 
 151   1           RCAP2H = 0xFC; 
 152   1           TL2    = 0x18; 
 153   1           RCAP2L = 0x18;  
 154   1         
 155   1           ET2   = 1;  
 156   1           TR2   = 1;  
 157   1      }
 158          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    429    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----       3
   DATA SIZE        =     35    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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