摘要:

操作系统的移植是嵌入式开发的基础。介绍了嵌入式实时操作系统VxWorks的BSP概念,分析了VxWorks的启动顺序和系统存储布局,然后简述了英贝德EBD9200开发板的组成和硬件结构,在此基础上给出了EBD9200开发板的BSP设计和实现步骤,包括软硬件初始化和驱动程序设计以及引导模块和工程映象的下载。最后阐述了在调试BootROM时采用的小技巧,为方便操作系统的移植提供了参考。

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Porting operation system is the basis of embedded-system's development. The conception of the embedded real-time operating system VxWorks BSP( Board Support Package), the VxWorks start-up flow and the memory layout is introduced firstly. Then the hardware members of the board EBD9200, and the design and step to realize the BSP for EBD9200 is presented, including the initialization of hardware and software, the design of several important drivers, and the download of the bootrom and the project image. Lastly, a tip is recommended to debug the bootrom and to be refered by operation system's porting.