单片机——串口中断

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我是靠谱客的博主踏实超短裙，这篇文章主要介绍单片机——串口中断，现在分享给大家，希望可以做个参考。

本程序的功能是通过串口中断进行串口数据的收发

#include <reg52.h>
#include "./delay/delay.h"

void uart_init()
{
   SCON = 0x50;
   TMOD |= 0x20;
   TH1 = 0xfd;
   TR1 = 1;
}

void uart_send_byte(unsigned char byte)
{
   SBUF = byte;
   while(!TI);
  TI = 0;
}

void uart_send_str(unsigned char *s)
{
   while(*s)
  {
     uart_send_byte(*s);
     s++;
    }
}

void main()
{
   unsigned char tmp[10];
    unsigned char i = 0;
   uart_init();
   uart_send_str("please input a char:n");
   while(1)
  {
    //uart_send_byte(0x22);
    if(RI)
    {

     if(i >= 10)
     {
       break;
         }
     if(SBUF == ' ')
     {
        break;
         }
        tmp[i] = SBUF;
      i++;
      RI = 0;
       }
    }
  uart_send_str(" char:");
  uart_send_str(tmp);
    uart_send_str("rn");
}