sysinit.lst

单片机的下位端

C51 COMPILER V7.09   SYSINIT                                                               10/12/2006 14:21:46 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE SYSINIT
OBJECT MODULE PLACED IN sysinit.OBJ
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE sysinit.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <regx52.h>
   2          
   3          void Sys_Init(void)
   4          {
   5   1      /****************************************************************************
   6   1                EA    -    (ET2)     ES       ET1    EX1    ET0    EX0        IE
   7   1             -----------------------------------------------------------     ------  
   8   1                ALL   -    (T2)    SERIAL     T1     INT1   T0     INT0       0XA8
   9   1      *****************************************************************************
  10   1             EA will be set at the end of the function.
  11   1      ****************************************************************************/   
  12   1      
  13   1          IE = 0x12;//ENABLE THE SERIAL AND T0 INTERUPTION
  14   1      
  15   1      /*************************************************************************** 
  16   1                 -    -    (PT2)    PS       PT1    PX1    PT0    PX0        IP
  17   1                 ----------------------------------------------------------     ------
  18   1                     -    -    (T2)   SERIAL     T1     INT1   T0     INT0       0XB8
  19   1      
  20   1      ****************************************************************************
  21   1          while the nature order is:
  22   1                            INT0 > T0 > INT1 > T1 > SERIAL
  23   1      ***************************************************************************/
  24   1         
  25   1          IP = 0x00;
  26   1      
  27   1      /***************************************************************************
  28   1                |<----------T1--------->|<----------T0--------->|           TMOD
  29   1                ----------------------------------------------------------     -------
  30   1                         GATE     C/T     M1 M0 |GATE     C/T     M1 M0             0X89
  31   1      ****************************************************************************
  32   1                 GATE=0,TRX=1             the timer will work
  33   1                 GATE=1,TRX=1,INTX=1      the timer will work
  34   1                 C/T=1     counter   
  35   1                 C/T=0     timer
  36   1                 M1M0=00   method 0(13bit)
  37   1                 M1M0=01   method 1(16bit)
  38   1                 M1M0=10   method 2(8bit autoload)
  39   1                 M1M0=11   method 3(two 8bit)
  40   1      ***************************************************************************/
  41   1      
  42   1          TMOD = 0x21 ;
  43   1      
  44   1      /*********************************************************************************************
  45   1               TF1         TR1    TF0    TR0     IE1          IT1       IE0    IT0            TCON
  46   1          ---------------------------------------------------------------------------       --------  
  47   1               T1 overflow   T1 work             INT1 request  INT1 method                        0X88   
  48   1              1/0       start/stop               1/0        edge/level
  49   1      *********************************************************************************************/
  50   1      
  51   1          TR1 = 0;         //TR1 will work until set TH1 & TL1
  52   1          TR0 = 0;
  53   1      
  54   1      /**************************************************************************
  55   1         TODO:if the MCU is 52 serial and you want to use T2,
C51 COMPILER V7.09   SYSINIT                                                               10/12/2006 14:21:46 PAGE 2   

  56   1              you will configure T2MOD ,T2CON yourself.
  57   1                      make reference to the <regx52.h>.
  58   1      **************************************************************************/
  59   1      
  60   1      /******************************************************************************************
  61   1              <SM0  SM1>     SM2     REN      TB8      RB8         TI        RI             SCON
  62   1               -----------------------------------------------------------------------       --------
  63   1                   method     multiple  receive  sending  receiving   send     receive          0X98
  64   1                       select      select   enable   9th bit  9th bit   interrupt interrupt
  65   1      *******************************************************************************************
  66   1              SM2 just use in the method 2 and 3.
  67   1                      TI and RI must use software clear.
  68   1      ******************************************************************************************/
  69   1      
  70   1          SCON = 0xf0;
  71   1          
  72   1      /**************************************************************************
  73   1         TODO:you will configure PCON yourself.
  74   1      **************************************************************************/
  75   1      
  76   1          PCON = 0x00; 
  77   1      
  78   1      /**************************************************************************
  79   1         TODO:please initial THX and TLX.
  80   1      **************************************************************************/
  81   1          TH1 = 0xe6;
  82   1          TL1 = 0xe6;                 //the baud rate is 1200;when 12MHz & SMOD=0; 
  83   1              
  84   1              TR1 = 1;
  85   1              EA  = 1;
  86   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     29    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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