求大佬看看单片机双机通信有没有错

ID:568764 · 发表于 2019-6-26 19:08

下面注释的是乙机，结果应该是：甲机按下中断按键后，乙机联排数码管有显示，但结果出不来按下按键没反应，我怀疑是单片机坏了。。。

#include <AT89X51.H>
#define uchar unsigned char
#define unit unsigned int
void delay(unsigned char delay_time)
{
   unsigned char i;
   while(delay_time--)
   for(i=0;i<125;i++)
   ;
}
void main()
{
   IT0=1;
   EX0=1;
   EA=1;
   SCON=0x51;
   TMOD=0x20;  TH0=0xf3;TL0=0xf3;
   TR1=1;
   EA=1;
   ES=1;
   while(1);
}
void jian() interrupt 0
{
            delay(10);
            if(P3^2!=1)
            {
                     ACC=1;
                     SBUF=ACC;
            }
}
void ser()interrupt 4
{
   if(RI==1)
   {
            RI=0;
   }
   else TI=0;
}
//#include<AT89X51.H>
//#define uchar unsigned char
//#define unit unsigned int
//bit receive_flag;
//unsigned int i;
//void mini_delay()
//{
//  for(i=0;i<100;i++);
//}
//void main(void)
//{
//       unsigned char led[8]={0x1c,0xfc,0x7c,0x9e,0x1c,0xfc,0x7c,0x9e};
//       unsigned char wei[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
//       unsigned int a;
//       unsigned int b;
//       SCON=0x50;
//       TMOD=0x20;TH0=0xf3;TL0=0xf3;
//       ET1=1;
//       TR1=1;
//       EA=1;
//       ES=1;
//       receive_flag = 0;
//       while(1)
//       {
//             if(receive_flag)
//             {
//                      for(a=0;a<8;a++)
//                      {
//                               for(b=0;b<=a;b++)
//                               {
//                                     P1=wei[ b];
//                                     P0=led[ b];
//                                     mini_delay();
//                               }
//             }
//             }
// }
//}
//void ser()interrupt 4
//{
//       if(RI)
//       {
//
//             receive_flag=1;
//             RI=0;
//       }
//       else TI=0;
//}

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