19.lst

单片机C语言程序设计实训100例

C51 COMPILER V8.08   19                                                                    08/12/2009 10:37:11 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE 19
OBJECT MODULE PLACED IN 19.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 19.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /***************   writer:shopping.w   ******************/
   2          #include <reg52.h>
   3          #define uint unsigned int
   4          #define uchar unsigned char
   5          
   6          sbit CLK = P2^4;
   7          sbit ST  = P2^5;
   8          sbit EOC = P2^6;
   9          sbit OE  = P2^7;
  10          sbit PWM = P3^0;
  11          
  12          void DelayMS(uint ms)
  13          {
  14   1              uchar i;
  15   1              while(ms--)
  16   1              {
  17   2                      for(i=0;i<120;i++);
  18   2              }
  19   1      }
  20          
  21          void main()
  22          {
  23   1              uchar Val;
  24   1              TMOD = 0x02;
  25   1              TH0 = 0x14;
  26   1              TL0 = 0x00;
  27   1              IE  = 0x82;
  28   1              TR0 = 1;
  29   1              while(1)
  30   1              {
  31   2                      ST = 0;
  32   2                      ST = 1;
  33   2                      ST = 0;
  34   2                      while(!EOC);
  35   2                      OE  = 1;
  36   2                      Val = P1;
  37   2                      OE  = 0;
  38   2                      if(Val == 0)
  39   2                      {
  40   3                              PWM = 0;
  41   3                              DelayMS(0xff);
  42   3                              continue;
  43   3                      }
  44   2                      if(Val == 0xff)
  45   2                      {
  46   3                              PWM = 1;
  47   3                              DelayMS(0xff);
  48   3                              continue;
  49   3                      }
  50   2                      PWM = 1;
  51   2                      DelayMS(Val);
  52   2                      PWM = 0;
  53   2                      DelayMS(0xff - Val);
  54   2              }
  55   1      }
C51 COMPILER V8.08   19                                                                    08/12/2009 10:37:11 PAGE 2   

  56          
  57          void Timer0_INT() interrupt 1
  58          {
  59   1              CLK = !CLK;
  60   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    105    ----
   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)