机载计算机RS422A通讯的软硬件设计与实现

›› 2013, Vol. 26 ›› Issue (7): 116-.

机载计算机RS422A通讯的软硬件设计与实现

王梅,王凌伟,姬进

(中国航空工业西安航空计算技术研究所第8研究室,陕西西安 710000)

出版日期:2013-07-15 发布日期:2013-07-16
作者简介:王梅(1979—),女,工程师。研究方向:航空机载计算机研究。E-mail:tree_[KG-2mm]ha@tom.com

Hardware and Software Design and Implementation of the Airborne Computer RS422A Communications

WANG Mei,WANG Lingwei,JI Jin

(The 8^thResearch Center,China Aviation Institute of Computing Technology,Xi'an 710000,China)

Online:2013-07-15 Published:2013-07-16

摘要/Abstract

摘要：

RS422A、RS485等异步串行通讯技术广泛应用于机载计算机实时控制系统,提高了飞机的可维护性和可扩展性。为使其稳定工作,不仅需要可靠硬件平台,还需严密的软件算法。文中描述了某机载计算机为实现与多个设备进行实时异步串行通讯,设计了统一的硬件平台,并根据每个设备不同的通讯协议,给出了不同的软件算法,重点阐述了软件设计及原理。根据该原理研制的产品已经过试验、联试和用户使用,证明其工作可靠、性能良好。

关键词: RS422A, RS485, 通讯软件设计

Abstract:

RS422A and RS485 asynchronous serial communication technologies are widely used real-time control of the onboard computer system to improve the maintainability and scalability of the aircraft.Its stable operation requires both reliable hardware platform and software algorithms.This paper describes an onboard computer to achieve asynchronous serial communication with multiple devices in real time,and designs a unified hardware platform and software algorithms based on different communication protocols for each device with emphasis on the software design and principle.Products developed under the principle have been tested,united tested and put into practical uses,and prove to be reliable and good in performance.

Key words: RS422A;RS485;communication software design

中图分类号:

TN915

王梅,王凌伟,姬进. 机载计算机RS422A通讯的软硬件设计与实现[J]. , 2013, 26(7): 116-.

WANG Mei,WANG Lingwei,JI Jin. Hardware and Software Design and Implementation of the Airborne Computer RS422A Communications[J]. , 2013, 26(7): 116-.

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