单片机串口通信,收发数据缓冲区示例,在中断中不处理接收的数据,只是按循环队的方式将数据存起来,标示Buf中有多少个数据,在主程序中去查询.-Microcontroller serial communication, send and receive data buffer example, in the interrupt does not handle the data received, but on a revolving team approach to store data toget