【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。更多还原

【Abstract】 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.更多还原