基于VxWorks系统的BSP的研究与实现-控制理论与控制工程专业论文.docxVIP

摘 要 摘 要 随着信息化和网络化的到来，人们对以嵌入式系统为核心技术的电子产品的依赖 程度剧烈增加，VxWorks系统以其卓越的实时性、良好的可靠性以及高性能的内核成 为嵌入式实时操作系统的领导者，占据了嵌入式实时操作系统应用的大部分市场。但 VxWorks只提供组件供用户配置，因此，对于用户而言，VxWorks系统开发的重点和 难点在于板级支持包（Board Support Package，BSP）的制作。所以，在基于VxWorks 系统的应用中，对板级支持包进行研究就成为一个很有价值的课题。本论文主要完成 以下工作： 1）以“光接入交换系统”的底层硬件平台为背景完成系统的板级硬件结构和解 决方案。通过对系统的底层功能需求进行分析，得到板级硬件所需要的关键模块，然 后综合各个模块设计了系统的板级硬件结构和解决方案，并对各个模块的结构功能进 行了深入分析，最后根据所设计的板级结构方案对系统的内存空间进行了分配和规 划。 2）实现基于此板级硬件结构和解决方案的板级支持包软件。对系统启动流程进 行深入研究，设计和实现了系统的启动引导和初始化软件；对系统中的核心模块：串 口字符设备和网络设备，进行了深入研究，阐述了VxWorks系统下串口设备驱动和网 络设备驱动的开发方法，设计和实现了此方案中的串口设备驱动程序和网络设备驱动 程序，最后对系统进行了测试和验证。 关键词：VxWorks；板级硬件结构；板级支持包；设备驱动 – I – Abstract Abstract With the advent of information technology and networking, people rely on the electronic products with embedded system as the core technology heavily, Vxorks system become the leader of embedded real-time operating system with its excellent real-time, good reliability and high-performance kernel and occupy most of the market of embedded real-time operating system applications, But VxWorks only provide components to configure, thus, for the user, the focus and difficulty of development of VxWorks system lies in the production of the Board Support Package (Board Support Package, BSP). Therefore, the research of the board support package become a valuable subject for the application of VxWorks system. The main work of this paper is: Design the board-level hardware structure and solutions of the system with the background of “optical access switching system”. By analysis of the functional requirements of the optical access exchange system, get the board-level key hardware module.Then design the system board-level hardware structure and solutions by synthetic research on each module, deeply analysed the structure and function of them. Finally, allocate and plan system memory space according to the structure of the program of the board-level design. Achieve the board support package software of the board-level hardware architecture and the s