基于未知上位机串行通信波特率检测  

Baud Rate Detection of Serial Communication with Parity Bit Based on Unknown Dispatcher

作　　者：王红祥[1] 刘道文[1] 

机构地区：[1]许昌学院教育技术与信息部,河南许昌461000

出　　处：《现代电子技术》2008年第23期169-170,180,共3页Modern Electronics Technique

摘　　要：根据串行通信信号的有限速率特性,提出一种对波特率进行自动检测的方法,在研究串行通信的速率特性、帧结构及其接收到的字符信息特点的基础上,给出一种对未知上位机发送信息的串口通信的波特率检测方法,此方法简单、可靠、易行,并给出了软件实现的算法。According to the finite rate character of the serial communication signal, a method of automatically detecting Baud rate is presented, the speed character of serial communication, frame structure and character of accepted word imformation are studied. Based on that, a method of detecting Baud rate of serial communication sent by unknown dispatcher is provided. The method is simple, reliable and feasible. Moreover,the algorithm of implementing this method is presented.

关 键 词：自动检测 波特率 串口通讯 校验位 

分 类 号：TN919[电子电信—通信与信息系统]