【作者】 赵懿； 朱庄生； 李红；

【Author】 Zhao Yi Zhu Zhuangsheng Li Hong (School of Instrument Science and Opto-electronics Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China)

【机构】 北京航空航天大学仪器科学与光电工程学院；

【摘要】 星载计算机是星上电子系统的核心单元,它负责完成对星上其他各分系统的控制,并对星上个传感器的数据信息进行融合处理。而完成这些基本功能的前提是,星载计算机和其它分系统之间必须建立起一条可靠且高效的通信链路。本文介绍了如何在MPC8280和VxWorks操作系统所构建的星载计算机平台上设计并开发基于任务需求的通信总线,以及如何编写相应的总线设备驱动程序,并通过冗余备份的方式实现星载计算机通信接口的可靠性设计。更多还原

【Abstract】 Onboard computer is the kernel of the satellite electronic system,his function is the control of the subsystem and disposal of the data from transducer on the satellite.The completion of these basic functions on the premise that the on-board computers and other sub-systems must be established between a reliable and efficient communication links.This paper describes how to design and develop the communication bus based on the needs of the mission on the on-board computer platform which is constructed by MPC8280 and VxWorks operating system an,and how to realize the reliability design of Onboard computer communication interface through redundancy and backup means.更多还原