基于CPCI系统的高速数字通信接口电路设计与应用  

Design and application of high-speed digital communication interface circuit based on CPCI system

作　　者：李国达[1] 

机构地区：[1]北京理工大学,北京100070

出　　处：《现代电子技术》2016年第7期75-78,82,共5页Modern Electronics Technique

摘　　要：随着航空电子系统的迅速发展,系统间频繁的信息交换和共享对数据传输实时性和可靠性的要求日益提高。针对这一要求,提出了一种基于CPCI系统下实现AFDX协议端系统接口功能的方法,为通用信号处理平台与AFDX网络的连接提供接口,实现AFDX协议数据的高速、可靠性传输。给出了采用FPGA实现该功能的整体方案,详细描述了基于FPGA硬件开发的各个模块的设计,介绍了基于Micro Blaze的嵌入式软件设计方法,在EDK中采用C语言实现AFDX协议IP层以上的封装和解封装。最后经过仿真验证和测试,验证了设计的正确性。In recent years,with the rapid development of avionics system,the requirements of frequent information exchange and sharing among system to real-time and reliable data transmission are increasingly increased. For this issue,a method based on CPCI system to implement the end system interface function of AFDX protocol is proposed,which can provide the interface to connect the general signal processing platform and AFDX network,and realize the high-speed and reliable transmission of AFDX protocol data. The overall plan of using FPGA to implement the function is given,in which the design of each module developed by FPGA hardware is described in detail,and the embedded software design method based on Micro Blaze is introduced. The C language is used to realize the capsulation and decapsulation above IP layer of the AFDX protocol in EDK.The correctness of the design was verified by simulation and test.

关 键 词：CPCI 航空全双工以太网 端系统 FPGA 嵌入式软件 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM417[自动化与计算机技术—控制科学与工程]