通信协议： 第1字节，MSB为1，为第1字节标志，第2字节，MSB为0，为非第一字节标志，其余类推……，最后一个字节为前几个字节后7位的异或校验和。



　　测试方法：可以将串口调试助手的发送框写上 95 10 20 25，并选上16进制发送，接收框选上16进制显示，如果每发送一次就接收到95 10 20 25，说明测试成功。



//这是一个单片机C51串口接收（中断）和发送例程，可以用来测试51单片机的中断接收

//和查询发送，另外我觉得发送没有必要用中断，因为程序的开销是一样的-Communications protocol: the first one byte, MSB is 1, for the first signs one-byte, 2 bytes, MSB is 0, non-first byte marks, and the rest and so on ... ..., the last byte words for the former Day 7 XOR the checksum. Test Methods: Serial debugging assistant can send the Writing on the box 95 10 20 25, and 16 M on the election sent, received on 16 M框选shows that if every one on the receiver to send 95 10 20 25 on the test Succeed.// This is a C51 single-chip serial reception (disruptions) and send routine can be used to test the suspension of 51 single-chip receiver// and query sent, I also feel that there is no need to use to send interruption, because the cost of the procedure is the same as