星载即插即用协议转换模块的SOC设计与实现

微小型卫星即插即用技术的发展取决于不同总线标准接口设备能够快速集成到同一网络中的能力。SpaceWire总线技术是一种星载网络总线标准，已成为网络拓扑结构中的主干网络，而空间即插即用协议（Space plug-and-play architecture，SPA）是美国航空航天学会（American institute of aeronautics and astronautics，AIAA）在SpaceWire标准基础上为了实现快速响应计划而提出的微小型卫星即插即用标准。目前国内正在使用的卫星载荷的通信协议都是非SpaceWire接口的，比如许多小型卫星上的光纤陀螺载荷采用RS442串口通信标准，红外摄像头载荷一般采用1394b标准。本文研究了将1394b接口高速红外摄像头与RS422低速串口光纤陀螺接口集成到SPA网络的协议转换原理和片上处理器（System on chip，SOC）设计，并且在现场可编程门阵列（Field programmable gate array，FPGA）开发板上进行了软硬件验证。

Spaceborne Protocol Transition SOC Module of Space Plug-and-Play Architecture

The development of micro satellite space plug-and-play architecture technology depends on the ability of these protocols on the bus response in the communication network. SpaceWire is a protocol designed for spaceborne communication network as the main network in topological structure. Space plug-and-play architecture is proposed by AIAA for quick response satellite. However, most of the payload in use are non SpaceWire interface, for instance, 1394b for fiber gyro and RS422 for infrared camera. In this case, this article studied the data transition principle of 1394b and serial port protocol integrate into space plug-and-play architecture by SOC and validated its soft/hardware on FPGA.