waterlight.lst

51单片机的流水灯代码

C51 COMPILER V7.08   WATERLIGHT                                                            02/13/2006 15:30:49 PAGE 1   


C51 COMPILER V7.08, COMPILATION OF MODULE WATERLIGHT
OBJECT MODULE PLACED IN waterlight.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE waterlight.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /********************************************************************************
   2          *  描述:                                                                       *
   3          *         LED流水灯                                                            *
   4          *                                                                              *
   5          *                                                                              *
   6          *                                                                              *
   7          ********************************************************************************
   8          * 【声明】 此程序仅用于学习与
   9          *******************************************************************************/
  10          
  11          #include<reg51.h>
  12          #include <intrins.h>
  13          
  14          
  15          void delayms(unsigned char ms)  
  16          // 延时子程序
  17          {                                               
  18   1              unsigned char i;
  19   1              while(ms--)
  20   1              {
  21   2                      for(i = 0; i < 120; i++);
  22   2              }
  23   1      }
  24          
  25          main()
  26          {
  27   1              unsigned char LED;
  28   1              LED = 0xc0;
  29   1              P1 = LED;
  30   1              
  31   1              while(1)
  32   1              {
  33   2                      delayms(250);                   
  34   2                      LED = _crol_(LED,1);            //循环右移1