AutoOSEK developed on MC9S12DP256 hardware platform is an embedded real-time operating system based on the OSEK / VDX specifications. To extend AutoOSEK applications in the automotive field) it' s necessary to port AutoOSEK to different hardware platforms. This paper investigates the theory and technology of porting embedded operating system to different hardware flats, and advances a sheme which can be used to portembedded operating system with the means of blocking and layered. It described the realization of porting AutoOSEK to MPC5634, 32 bit MCU based on PowerPC s architecture with this method. To verify the rationality of porting, function and performance of AutoOSEK were tested. Test results show that task switching time is 2. 90μs, and it can well meet the needs in real-time automotive electronics filed. After verification we know the porting method is simple and proven effective, can effectively speed up the development process.%AutoOSEK是基于OSEK/VDX规范的在MC9S12DP256硬件平台上开发的嵌入式实时操作系统;为扩展AutoOSEK在汽车电子领域的应用,需将其移植到不同的硬件平台;文章研究了嵌入式操作系统在不同平台移植的理论与技术,提出一种采用层次化和模块化的思想对AutoOSEK进行移植的通用方法；采用该方法实现了AutoOSEK在基于PowerPC架构32位处理器MPC5634上的移植;为验证移植方法的合理性,对移植后的AutoOSEK进行了功能和性能测试,测试结果显示任务切换时间达到2.90μs,能够很好满足汽车电子领域实时性的需要；经验证该操作系统移植方法简单高效,可有效加快开发进程.
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