原创 单片机串口接收c程序

//该程序实现了
#include <reg51.h>
#define display_data P0
sbit display_bit=P2^2;
int i;
unsigned char receive_data;
unsigned char tab[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xFF};
void display(unsigned char data1)
{
 display_bit=0;
 display_data=tab[data1];
}

void serial() interrupt 4
 {
  RI="0";
  receive_data=SBUF;
 }

void main()
{
  i="0";
  P0=0x01;
  SCON="0x50";
  PCON="0x80";
  TMOD="0x20";
  TL1=0xf4;
  TH1=0xf4;
  EA="1";
  ES="1";
  TR1=1;
  while(1)
  {
   display(receive_data);
  }
}