飞管1394总线接口模块设计实现

Design and implementation of aerocraft management 1394 bus interface module

在面向新一代飞机管理系统的1394总线应用中,为满足节点标准化设计,提高电气特性信号质量,降低节点的维护成本,提出了一种基于1394总线协议的飞管1394总线接口模块。该模块具有功耗低、体积小、重量轻、可靠性高的特点,并且1394总线3个端口分别通过3根1394专用电缆以辫接方式引出,实现了接口的标准化和统一化。在充分理解1394总线协议的基础上,分别从硬件架构、逻辑设计和软件设计方面介绍了飞管1394总线接口模块的设计与实现,通过测试与验证,表明该接口模块功能与性能满足机载环境的应用需求。

In the 1394 bus application for a new generation of aerocraft management system, in order to satisfy the standard node design, improve the electrical characteristics signal quality, and reduce the node ′ s maintenance costs, this paper puts forward a aerocraft management 1394 bus interface module based on 1394 bus protocol. The module has characteristics of low power, small volume, light weight and high reliability, and 1394 bus three ports are fetched respectively by three 1394 special cable with plait format, to achieve the standardization and unification of interface. In the full understanding of 1394 bus protocol, the article introduces the aerocraft management 1394 bus interface module design and implementation from the hardware architecture, logic design and software design repectively. The test and verification show that the interface module function and performance meet the demands of the application of avionic.