sumled.lst

本人收集的一些C语言程序

C51 COMPILER V7.50   SUMLED                                                                02/22/2006 12:57:56 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE SUMLED
OBJECT MODULE PLACED IN sumled.OBJ
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE sumled.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          //单个数码管从0-9循环跳变
   2          #include<reg51.h>
   3          
   4          unsigned char Sum_Tab[] = {0x41, 0xf5, 0x29, 0x31, 0x95, 0x13, 0x03, 0x75, 0x01, 0x11};//0-9数字
   5          
   6          /******************************************************************************/        
   7          void Delay(unsigned char a)//延时函数
   8          {
   9   1              unsigned char i;
  10   1              while( --a != 0)
  11   1              {
  12   2                      for(i = 0; i < 125; i++);//125大概为1MS
  13   2              }
  14   1      }
  15          
  16          /******************************************************************************/ 
  17          void main(void)
  18          {
  19   1              unsigned char a;//定义局部变量a
  20   1      
  21   1              while(1)
  22   1              {
  23   2                      for(a=0;a<10;a++)
  24   2                      {
  25   3                              P0 = Sum_Tab[a];  //取 0-9 的字模数值
  26   3                      P2 = 0Xfd; //确定数码管显示的位置
  27   3                              Delay(250);//延时
  28   3                              P2 = 0X00;//短暂的关闭显示，若不关闭，可能会造成显示模糊不清。
  29   3                      }
  30   2              }
  31   1      
  32   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     42    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     10    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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