delay.lst

QH_MCU_V1.1单片机C源码. 内含实验程序 这是修改版.

C51 COMPILER V7.07   DELAY                                                                 09/21/2007 13:44:01 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE DELAY
OBJECT MODULE PLACED IN delay.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE delay.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REG51.H>
   2          #include <sys.h>
   3          #include <intrins.h>
   4          
   5          bit  read_flag;
   6          void delay (uchar utimes);
   7          void ISRSER() interrupt 4 using 3
   8            {
   9   1          uchar a;
  10   1               
  11   1        if (RI)
  12   1          {
  13   2                  
  14   2             RI=0;
  15   2                 a=SBUF;
  16   2            if (a==0xac)
  17   2                 read_flag=1;
  18   2                else 
  19   2                  read_flag=0;
  20   2                SBUF=a;
  21   2                while(TI==0);
  22   2                TI=0;
  23   2          }
  24   1        }
  25            
  26          void isr_ex0(void)interrupt 0 using 0
  27          {
  28   1              EA = 0;
  29   1              read_flag = 1;
  30   1              EA = 1;
  31   1      }
  32          
  33          void isr_ex1(void)interrupt 2 using 0
  34          {
  35   1              EA = 0;
  36   1              read_flag = 0;
  37   1              EA = 1;
  38   1      }
  39          
  40          
  41          void main()
  42          {
  43   1        delay(10);
  44   1              SCON |= 0x50;  /* mode 1: 8-bit UART, enable receiver */ 
  45   1              TMOD |= 0x20; /* timer 1 mode 2: 8-Bit reload */ 
  46   1              PCON |= 0x80; // baud x2
  47   1              TH1 = 0xfd;   //串口初始化 0xfd=19200,0xfa=9600,0xf4=4800,0xe8=2400,0xd0=1200  
  48   1              TR1 = 1;
  49   1              EA = 1;
  50   1              ES = 1;  // Turn on Series Interrupte;
  51   1        EX0 = 1;
  52   1        EX1 = 1;
  53   1      
  54   1      
  55   1              while(1)
C51 COMPILER V7.07   DELAY                                                                 09/21/2007 13:44:01 PAGE 2   

  56   1              {
  57   2      
  58   2                   if (read_flag==1) 
  59   2      
  60   2                         {
  61   3                                 delay (250);                  
  62   3                               P0 = 0x4f;
  63   3                           P2 = 0xf7;
  64   3                                 delay (250);
  65   3                                 delay (250);
  66   3                                 P0 = 0x00;
  67   3                                 P2 = 0xff;
  68   3                                 delay (250);
  69   3                         }
  70   2         
  71   2      
  72   2              }
  73   1      }
  74          
  75          void delay(uchar utimes)
  76          {
  77   1        uchar i = 0;
  78   1              uchar j = 0;
  79   1        for (j=0;j<utimes;j++)
  80   1         {
  81   2          for (i=0; i<250; i++)
  82   2                ;
  83   2         }
  84   1      }
  85          
  86          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    126    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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