景区闸机异步串行通信协议的设计与实现

摘要

With scenic gate as design platform,this paper introduces the method of implementation and design of serial communica-tion protocol,including the design of communication frame,communication diagram,communication state and the implementation of programme and the related technologies,such as the circular buffer,queues and state machine and describes the implementation method of the frame structure design and frame grabber. The method is of certain reference significance for the design and imple-mentation of the asynchronous serial communication protocol.%以景区闸机为设计平台,介绍了串行通讯协议的设计实现方法,包括通讯帧设计,通讯实现图设计,通讯状态设计及具体的编程实现.叙述了从帧结构设计到具体帧接收的实现方法,介绍了涉及到的相关技术,如环形缓冲区、队列和状态机.该方法对异步串行通讯协议的设计与实现有一定的参考意义.