IP在IEEE1394高速串行总线上的应用研究

摘要

High speed data bus technology is one of the core techniques in avionics.IEEE 1394 is a novel high-speed serial data bus,and has been applied in avionics successfully.Its asynchronous transfer mechanism guarantees the reliability of data transferred and is widely used to transfer command and status data.Isochronous transfer also can meet the need of avionics system demanding for real-time transmission of mass data.IP is the basic communication protocols of intemet,using the IP protocol over 1394 and making the best of high speed and reliability of 1394 which will make it widely used.Mainly discuss the necessary methods,data structures and 1394 address resolution protocol(ARP) for the transport of internet protocol datagrams over IEEE 1394.%高速数据总线技术是航空电子中的关键技术之一.IEEE 1394是一种新型的高速串行数据总线,并已成功用于航空电子中.其异步传输保证数据传输的可靠性,广泛用于命令、状态数据的传输;等时传输又能满足航电系统中大容量数据实时传输的需求.IP是互联网中最基本的通信协议,把IP运用在1394串行总线上(IP over 1394),充分利用1394的高速可靠等特点,将使IEEE 1394的应用更加广泛.文中主要讨论了通过1394串行总线传输IP数据包所必然的方法、数据格式和1394 ARP.