aa.c

串口仿真程序,适合C51单片机初学者,很有实际意义

#include "reg52.h"
#include "stdio.h"
#include "math.h"
#include "stdlib.h"

int testdate=-8;
int y,i;
char s[]="1234";

void main(void)
{
   SCON=0x50;
   TMOD=0x20;
   TH1=0xf3;
   TR1=1;
   TI=1;
   printf("Hello C51\n");
   while(1)
   {
      /*y=abs(testdate);
	  printf("-8ABS(%d)=%d\n",testdate,y);*/
	  /*i=atoi(s);
      printf("ATOI(%s)=%d\n",s,i);*/
   }
}