text1.lst

单片机快速入门原程序

C51 COMPILER V7.50   TEXT1                                                                 05/27/2006 15:08:05 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE TEXT1
OBJECT MODULE PLACED IN Text1.OBJ
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE Text1.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg51.h>
   2          #include<stdio.h>
   3          Uart_Init();
   4          sbit P10=0x90;
   5          sbit P32=0xB2;
   6          sbit P33=0xB3;
   7          xdata int nCounter=0;
   8          main()
   9          { 
  10   1              Uart_Init();
  11   1              TH0=0x3C;       /* 计数初值写入TH0 */
  12   1              TL0=0xAF;       /* 写入计数初值到TL0 */
  13   1              ET0=1;          /* 定时器0中断允许 */
  14   1              EA=1;           /* 全局中断允许 */
  15   1              TF0=0;
  16   1              TR0=1;          /* 定时器0准备开始 */
  17   1              while(1)
  18   1              {       ;
  19   2              }
  20   1      }
  21          
  22          void Timer0_Overflow() interrupt 1 using 0
  23          {       
  24   1      
  25   1              TH0=0x3C;       /* 计数初值写入TH0 */
  26   1              TL0=0xAF;       /* 写入计数初值到TL0 */
  27   1      if(nCounter==20)
  28   1                      {nCounter=0;
  29   2                              P10=~P10;
  30   2                              /* 计数时间到1s时P10端口引脚取反 */
  31   2                              printf("LED blinked\n");
  32   2                      }
  33   1              nCounter++;
  34   1      }
  35          
  36          Uart_Init()
  37                  {SCON = 0x52;    /* 设置串行口控制寄存器SCON*/
  38   1               TMOD = 0x21;    /* 12M时钟时波特率为2400  */
  39   1               TCON = 0x69;    /* TCON */
  40   1               TH1 =  0xf3;    /* TH1 */
  41   1              }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    105    ----
   CONSTANT SIZE    =     13    ----
   XDATA SIZE       =      2    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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