摘要
文件系统是嵌入式智能车辆控制器软件层的重要组成部分。从控制器的存储设备特性和功能出发,提出了一种cramfs+jffs2+yaffs2+tmpfs的混合文件系统设计方案。此方案以几种主流的嵌入式文件系统为基础,对选取的cramfs、jffs2、yaffs2和tmpfs几种文件系统的特点进行了较为详细地介绍,最终构建了一个以cramfs为根文件系统的混合文件系统。此文件系统能够在不同的存储介质上实现不同数据的存贮,使系统的存储资源得到了有效利用,使用户配置文件掉电保存的需要得以满足,提高了系统的性能。
File system is the important part of embedded intelligent vehicle eontroller software level. Considering the characteristics of the storage device and the functions of the controller, this paper proposes a design scheme for embedded hybrid file system cramfs＋jffs2＋ yaffs2＋tmpfs. This sclleme based on several mainstream embedded file systems.This article gives a more detailed introduction to the selected cl＇amfs ,jff;2 ,yaffs2 and tmpfs file systems, at last uses cramfs as root file system for hybrid file system. This file system realizes different data storage over different storage media, which improves system performance as well as effectively uses the system storage resources and matches the requiremellts of user configuration file preservation when-system is power off.
出处
《机械管理开发》
2011年第1期147-148,150,共3页
Mechanical Management and Development
