基于SD卡的嵌入式Linux存储系统方案实现  

The Memory System Implementation for Embedded Linux Based on SD Memory Card

作　　者：周杰[1] 李齐[1] 邵惠鹤[1] 

机构地区：[1]上海交通大学自动化系

出　　处：《微型电脑应用》2006年第8期48-49,55,共3页Microcomputer Applications

摘　　要：本文基于以Freescale(R)的i.MX21为微处理器的硬件平台,介绍了一种以SD卡为主要存储介质,使用NorFlash作为BootFlash的存储系统方案。该方案采用了JFFS2、EXT2和FAT三种文件系统,展现了SD卡在嵌入式Linux中的典型应用,其有效性得到了充分的验证,具有很好的应用价值。A memory system implementation is introduced here, which uses SD memory card as its main storage media, and Nor Flash as its boot flash. This solution is demonstrated on a platform using i. MX21 from Freescale(r) as its MCU, and in this solution three kinds of file systems--JFFS2, EXT2 and FAT-are used. The solution here exhibits well the typical applications of SD cards in embedded Linux, and its validity has been proved sufficiently.

关 键 词：MX21 嵌入式LINUX SD JFFS2 EXT2 

分 类 号：TP316.81[自动化与计算机技术—计算机软件与理论]