IEEE1394总线容错性研究

On Fault-tolerance of IEEE1394 PHY/Link Interface

IEEE1394总线正逐步应用于航天电子系统,因此对其容错性进行研究是非常必要的.本文对IEEE1394总线的物理层与链路层接口部分在信号传输中可能存在的错误以及如何容错进行了研究,重点分析了物理层控制双向总线时可能出现的各种错误,并给出了链路层的容错方法,这样可以在很大程度上提高网络系统运行的可靠性.

IEEE1394 bus is a high performance commercial bus standard. Today, it is gradually used in avionics. So it is necessary to study the fault tolerance of IEEE1394 to meet the avionics reliability and performance requirements. In this paper, the study is focused on the fault tolerance of PHY/link interface. All kinds of fault possibly presented in the interface signals between physical layer and link layer under PHY control, were analyzed. The techniques of how to avoid these faults for serious damage to avionics were provided.