pc机与单片机互传数据程序.txt

实现单片机与pc机的通信

单片机接收：


#include"reg51.h"
unsigned int smg[]={0xfe,0xfd,0xfb,0xf7};
unsigned char display[]={0,0,0,0};
int i=0;

main()
{ TMOD=0X22;  //波特率为1200
  TH1=0Xe6;
  TL1=0Xe6;
  TR1=1;
  TH0=0x06;
  TL0=0x06;
  TR0=1;
  SCON=0X50;
  PCON=0X0;
  EA=1;
  ET0=1;
  ES=1;
 while(1);
}

void xianshi() interrupt 1 using 0    //定时器0用于显示，及波特率的设定
{ P2=0xff;
 if(i==4)
  i=0;  
  P0=display[i];
    P2=smg[i];
  i++;

  
}

void jieshou() interrupt 4       //串行口中断，接受完开中断
{  RI=0;
    display[0]=SBUF%10;
   display[1]=SBUF%100/10;
   display[2]=SBUF%1000/100;
   display[3]=SBUF/1000;
}




单片机发送：

#include"reg51.h"
unsigned int a[]={2,4,6,8,10,12,24,48,96,100},i=0,h=0;

main()
{ TMOD=0X20;
  TH1=0Xe6;
  TL1=0Xe6;
  TR1=1;
  SCON=0X52;
  PCON=0X00;
  EA=1; 
  ES=1;
 while(1);
}

fasong() interrupt 4 
{h++;
 if(h==4000)
{  h=0;
   TI=0;
   SBUF=a[i];
   i++;
   if(i==10)
   i=0;
}
  }