dsjs.lst

51定时器常用例子包括测频率测脉宽产生波形

C51 COMPILER V6.23a  DSJS                                                                  03/20/2006 11:31:32 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE DSJS
OBJECT MODULE PLACED IN dsjs.OBJ
COMPILER INVOKED BY: e:\mcs51\Keil\C51\BIN\C51.EXE dsjs.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1                  #include"at89x52.h"
   2                  #define uchar unsigned char
   3                  #define uint  unsigned int
   4                  sbit m=P1^0;
   5              sbit key=P3^4;
   6                  uchar code  tv[]={0xfe,0xfd,0xfb,0xf7};
   7                  uchar code  a[]={0x3f,0x06,0x5b,0x4f,
   8                           0x66,0x6d,0x7d,0x07,0x7f,
   9                           0x6f,0x00,0x7c};
  10                  uchar data  led[];
  11                  uchar data  tvdata;
  12          
  13                  
  14                  void delay(void)
  15                 {
  16   1                      uint i;
  17   1                      for(i=0;i<100;i++);
  18   1              
  19   1             }
  20          
  21              ledxianshi()
  22                 {
  23   1                uchar k,i;
  24   1                led[0]=tvdata/100;
  25   1                        led[1]=tvdata%100/10;
  26   1                        led[2]=tvdata%10;
  27   1                        led[3]=10;
  28   1                      
  29   1                      for(k=0;k<4;k++)
  30   1                       { 
  31   2                         i=led[k];
  32   2                         P0=a[i];
  33   2                         P2=tv[k];
  34   2                     delay();
  35   2                       }
  36   1                      
  37   1                 }
  38          
  39                  void main()
  40               {   uchar data l;
  41   1                   while(1)
  42   1                 {
  43   2                   TMOD=0X01;
  44   2                   TR0=1;
  45   2                   if(key==0)
  46   2                   {
  47   3                       TH0=(-2000)>>8;
  48   3                               TL0=-2000;
  49   3                             do{ledxianshi();}
  50   3                             while(TF0==0);
  51   3                         TF0=0;
  52   3                         l=l+1;
  53   3                         if(l==10)
  54   3                         {
  55   4                          m=!m;
C51 COMPILER V6.23a  DSJS                                                                  03/20/2006 11:31:32 PAGE 2   

  56   4                          l=0;
  57   4                          tvdata=tvdata+1;
  58   4                         }
  59   3                   }
  60   2                 }
  61   1           }
  62          
  63          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    116    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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