led.lst

来自「C51程序设计及应用,程序源码,L03.TwoLED.rar」· LST 代码 · 共 41 行

C51 COMPILER V8.08   LED                                                                   09/10/2008 11:36:52 PAGE 1   


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

line level    source

   1          #include <AT89X51.h>            //预处理命令
   2          void main(void)         //主函数名
   3          { 
   4   1              unsigned int a; //定义变量a 为unsigned int 类型
   5   1              unsigned char b;        //定义变量b 为unsigned char 类型
   6   1              do
   7   1              {
   8   2                      for (a=0; a<65535; a++)
   9   2                              P1_0 = 0;       //65535 次设P1.0 口为低电平，点亮LED
  10   2                      P1_0 = 1;               //设P1.0 口为高电平，熄灭LED 
  11   2                      for (a=0; a<30000; a++);        //空循环
  12   2                      for (b=0; b<255; b++) 
  13   2                              P1_1 = 0;       //255 次设P1.1 口为低电平，点亮LED 
  14   2                      //P1_1 = 1;             //设P1.1 口为高电平，熄灭LED 
  15   2                      for (a=0; a<30000; a++);        //空循环 
  16   2              }while(1);
  17   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     72    ----
   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)