ex8-2ac.lst

《增强型8051单片机实用开发技术》例程代码

C51 COMPILER V8.18   EX8_2AC                                                               11/27/2009 22:08:14 PAGE 1   


C51 COMPILER V8.18, COMPILATION OF MODULE EX8_2AC
OBJECT MODULE PLACED IN ex8-2ac.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ex8-2ac.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "stc12c5a.h"        //包含STC12C5A60S2单片机寄存器定义文件
   2          
   3          unsigned char xdata ADDRT[128];
   4          unsigned char num=0,retval;
   5          unsigned char *mypdata;
   6          
   7          void main (void)
   8          {
   9   1              PCON=0x80;
  10   1              SCON=0x90;
  11   1              ES=1;
  12   1              EA=1;
  13   1              mypdata=ADDRT;
  14   1              ACC=*mypdata;   //将要发送的数据送到ACC中，以反映奇偶性
  15   1              TB8=P;                  //数据补偶，虽然在汇编语言中不能这样用，但在C语言中可以
  16   1              SBUF=ACC;
  17   1              while(1);
  18   1      }
  19          void Serial_ISR(void) interrupt 4 
  20          {
  21   1              if(RI)                                  //若RI=1，说明是接收中断
  22   1              {
  23   2                      RI=0;                           //将中断标志清零
  24   2                      retval = SBUF;          //将串行口缓冲器中的内容读到retval中
  25   2                      if(retval!=0)           //如果retval不等于0，重新发送原数据
  26   2                      {
  27   3                              ACC=*mypdata;   
  28   3                      TB8 = P; 
  29   3                      SBUF = ACC;
  30   3                      }
  31   2                      else
  32   2                      {
  33   3                              mypdata++;
  34   3                              ACC=*mypdata;
  35   3                              TB8=P;
  36   3                              SBUF=ACC;
  37   3                              if(num++ == 0x7F)       ES=0;
  38   3                      }
  39   2              }
  40   1          else
  41   1                      TI = 0;
  42   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    137    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =    128    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      5    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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