摘要
随着北斗三号导航卫星系统开始组网运行,星上系统对星载计算机系统提出了更快的数据传输和运算速度需求。中国科学院研制的北斗卫星采用高运算性能和高数据传输性能的星上计算机系统,其核心部件全部自主可控,即以龙芯中科公司生产的龙芯1E高性能宇航级处理器芯片为主构建的硬件环境,以实时操作系统VxWorks为软件环境。为适应龙芯中科1E系列的新型升级芯片,本文通过开发BSP和串口驱动,并在设备驱动管理上配置支持VxBus型驱动架构,实现VxWorks在新型芯片上的移植和运行,同时使驱动程序的可靠性、可移植性、独立性等性能得到有效提升。
With the Beidou-3 global navigation satellites system starting to operate in network, the on-board system requires faster speed of data transmission and data operation for the on-board computer systems. The core components of on-board computers for Beidou-3 satellites developed by CAS are all made or autonomously controlled by China. The on-board computers adopt the Godson 1 E high-performance aerospace-class processing chip produced by Godson Corporation as the main hardware environment, and the real-time operating system VxWorks as the software environment, which constitute an on-board computer system with high performance of data computing and data transmission. In order to adapt to the new Godson 1 E chips, this paper not only develop Board Support Package(BSP) and serial port drivers, but also configure the VxBus-type driver architecture on device driver management, in order to realize the porting and operation of VxWorks on the new chips. Meanwhile, the reliability, portability, and independence of the driver are effectively improved.
作者
徐帅
林宝军
刘迎春
赵帅
XU Shuai;LIN Bao-jun;LIU Ying-chun;ZHAO Shuai(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094;University of Chinese Academy of Sciences,Beijing 100094;Institute of Microsatellite Innovation,Chinese Academy of Sciences,Shanghai 201203;School of Information Science and Technology,Shanghai University of Science and Technology,Shanghai 201203,China)
出处
《计算机工程与科学》
CSCD
北大核心
2020年第4期571-579,共9页
Computer Engineering & Science
作者简介
徐帅(1993-),男,河北沧州人,硕士生,研究方向为嵌入式软件。E-mail:xushuai17@mails.ucas.ac.cn;通信作者:林宝军(1963-),男,吉林长岭人,博士,研究员,研究方向为计算机控制与应用。E-mail:linbaojun@aoe.ac.cn;刘迎春(1975-),女,江苏丹阳人,博士,研究员,研究方向为飞行器总体设计。E-mail:liuyingchun@csu.ac.cn;赵帅(1987-),男,山东济宁人,硕士生,工程师,研究方向为航天通用产品研发。E-mail:472230319@qq.com。
