高速SpaceWire路由开关设计

Design of a High Speed SpaceWire Routing Switch

SpaceWire总线是欧空局2003年推出的一种高速、点对点、全双工的串行总线协议。自提出以来,SpaceWire以其在错误检测、异常处理、故障保护和故障恢复及时间确定性方面所表现出来的良好特性被广泛应用于航天领域。目前,SpaceWire技术在Mars Express、Rosetta Spacecraft和Smart-1等多个空间任务中都得到了成功应用。本文提出了一种8端口高速SpaceWire路由开关的设计,该路由开关的数据传送率可达到200Mb/s。

SpaceWire is a serial, high speed, bi-directional, full duplex, point to point data transfer protocol which is defined by ESA （Euro-pean Space Agency） in 2003. Its excellent performance in error detection, exception handling, fault protection and fault recovery makes this standard widely used in a variety of space missions such as JWST,LRO,Rosetta,Mars Express and so on. A 8-port high speed SpaceWire routing switch which is proposed in this paper can transfer data smoothly at the rate of 200Mb/s.