51

计算机控制系统

#include    <reg51.h>
#include    <absacc.h>
#define		Out_port		XBYTE[0xcfa0]
#define		In_port			XBYTE[0xcfa8]
void delay(unsigned int time)
  {
   for(;time>0;time--);
  }
void main(void)
  {
   while(1)
     {
      Out_port = In_port;
      delay(10);
     }
  }