wdt.lst

51单片机用c语言实例 包括ad

C51 COMPILER V7.09   WDT                                                                   07/27/2005 14:54:55 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE WDT
OBJECT MODULE PLACED IN WDT.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE WDT.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /*************************************************************/
   2          /* 文件名称: WDT.C                                           */
   3          /* 功能描述: */
   4          /*************************************************************/
   5          
   6          #include "SST89x5x4.h"
   7          sfr WDTC = 0xC0;                                //定义特殊功能寄存器
   8          sbit WDT = 0xC1;                                //定义位寻址变量
   9          sbit WDTS = 0xC2;
  10          bit bdata WDTFlag = 1;                  //定义位类型变量
  11          void delay(void)                                //延时函数
  12          {
  13   1              unsigned int i;
  14   1              for(i=0; i<0xFFFF; i++);
  15   1      }
  16          
  17          void int0_isr() interrupt 0             //外部中断0服务函数
  18          {
  19   1              P1 = 0x00;
  20   1              WDTFlag = 0;
  21   1      }
  22          
  23          void main(void)
  24          {
  25   1              WDTD = 0x9F;                            //WDT重载值
  26   1              WDTC = 0x1F;
  27   1              IT0 = 1;                                        //外部中断0初始化
  28   1              EX0 = 1;
  29   1              EA = 1;
  30   1              while(WDTFlag==1)
  31   1              {
  32   2                      P1 = 0xFF;
  33   2                      delay();
  34   2                      P1 = 0x00;
  35   2                      delay();
  36   2                      WDT = 1;                                //喂狗
  37   2              }
  38   1              while(1);
  39   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     54    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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