cmain_19.lst

rs232测试程序

C51 COMPILER V7.01  CMAIN_19                                                               12/20/2006 01:15:08 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE CMAIN_19
OBJECT MODULE PLACED IN cmain_19.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE cmain_19.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg51.h>
   2          void delay(void)//延时
   3          {
   4   1         unsigned int i=600;
   5   1           while(--i);
   6   1      }
   7          void main()
   8          {
   9   1       unsigned char a;
  10   1       TMOD=0x20;//方式2,定时器1自动装入时间常数
  11   1       TL1=0xF3;//波特率为2400的初值
  12   1       TH1=0xF3;
  13   1       SCON=0x50;//串口工作在方式1
  14   1       PCON=0x00;//SMOD=0
  15   1       TR1=1;
  16   1       a=SBUF;
  17   1       while(RI==0);//接收
  18   1       RI=0;
  19   1       SBUF=a;
  20   1       while(TI==0);//发送
  21   1       TI=0;
  22   1       delay();
  23   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     48    ----
   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)