FC-AE-1553设备光纤接口电路的设计与实现

Design and implementation of FC-AE-1553 equipment fibre channel interface circuit

随着航空电子技术的发展,航空电子系统对数据通信在可靠性、数据吞吐率、实时性等方面的要求越来越高,基于光纤通道的FC-AE-1533总线可以很好的满足航电系统的要求,因而它成为新一代航电总线的发展方向。在分析光纤通道协议基础上,提出了FC-AE-1553设备光纤接口电路的总体方案,完成了其中各模块的设计并开发了光纤通道接口IP核。利用该接口电路完成了NC模块的设计,并利用光纤交换机搭建了实验平台,通过与交换机进行架构登录的方法对接口电路的功能进行了测试及验证。从实验结果可以看出,光纤接口电路可以实现FC-0、FC-1的功能以及部分FC-2层的功能,满足FC-AE-1553设备对底层光纤协议的功能要求;利用本方案可以灵活构建网络控制器(NC)、网络终端(NT)或者协议桥模块,这为开发FC-AE-1553协议设备提供了便利条件。

With the development of Avionics, avionics system is getting higher and higher requirements for data communication in reliability, data throughput rate and performance of real-time, the FC-AE-1553 bus based on fibre channel can meet the requirements of avionics system well, thus making it the development direction of the new generation avionics bus. On the basis of analyzing the fibre channel protocol, this paper proposed a general scheme of FC-AE-1553 equipment fibre channel interface circuit, completed the design of each module of the circuit and developed the IP core of fibre channel interface. Then, based on the hardware design, completed the design of NC module and set up a fibre channel switched network to verify the circuit. According to the outcome of the experiment, this scheme can implement the functions of FC-0, FC-1 and part of FC-2 layers in fibre channel protocol, it can also well meet the demands of low-layer fibre channel protocol functions for FC-AE-1553 equipment. Net controller （NC）, net terminal （NT） or protocol bridge module can be flexibly built using this scheme, thus providing convenient conditions for developing FC AE-1553 protocol devices.