基于PowerPC芯片与天脉系统的地址空间分配开发研究

摘要

在国产化过程中,PowerPC芯片与天脉环境下的开发日益趋多,其中必须进行全地址空间配置.以上述环境为平台,阐述了从NAND Flash与Nor Flash上电到代码运行的原理与异同;结合应用,着重分析了上电引导过程中的地址空间配置并深入讨论了MMU及Cache的特性;研究了MSL与OS下地址空间间的联系与配置过程,为实际开发提供了帮助.%During the process of percentage of home-made parts,the development based on PowerPCand AcoreOS be common,the configration of address space is essential.Under the environment,First expoun-ding the course and different of code if electrified under the NAND Flash or Nor Flash;combine the appli-cation,then analyse the distributing address space of BOOT,canvass the characteristic of MMU and Cache;last introduce the address space of MSL and OS,the article will provide guides for development.