结合嵌入式操作系统设计的主要特点,针对486 目标机上VxWorks 的定制,运用其BSP 技术解决了移植过程中底层硬件与上层软件无关性的问题。描述了BSP 的概念和启动流程,介绍了BSP 设计过程,并结合实际工程给出了486 目标机下VxWorks 的定制及应用程序加载方法。 关键词:嵌入式操作系统; VxWorks; Tornado; 板级支持包; 映像 Abstract: Combining with the features of the embedded operating system design and aiming at 486 target board, the independence between the software and the hardware is accomplished by its BSP during the transplanting of VxWorks OS. This paper describes the conception and the start-up flow of the BSP, and introduces its design process. Combining with the practical project, the implement of VxWorks grounded on 486 and the method of how to add applications are given.. Key words: embedded operating system; VxWorks; Tornado; BSP; image