YAFFS2在嵌入式系统中的实现  

Realization of YAFFS2 in the Embedded System

作　　者：韦峰[1] 卢再奇[1] 刘伟[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《现代电子技术》2010年第8期30-34,37,共6页Modern Electronics Technique

摘　　要：针对某系统程序量大,需要长时间实时存储大量数据,而目前的嵌入式系统存储容量小,不能满足需要的问题,根据FLASH具有可反复擦除和永久保存数据的特性,提出了大页NAND FLASH和YAFFS2文件系统相结合的解决方案。通过对Bootloader和嵌入式Linux内核的移植以及YAFFS2文件系统的制作,很好地解决了系统的海量存储问题。测试结果验证了该方案的可行性。Aiming at the characteristics of a large amount of system programs and real-time storage of a great deal of data for a long time, while the small capacity storage of current embedded system can not meet the requirements, the solution of combining big page NAND FLASH with YAFFS2 file system is put forward based on the characteristics of FLASH which can repeatedly erase and permanently preserve data.The problem of the system′s mass storage is solved satisfactoryly by the transplantation of the Bootloader and embedded Linux kernel, and the establishment ofYAFFS2 file system. The results verify the feasibility of the program.

关 键 词：嵌入式系统 NAND FLASH YAFFS2 LINUX ECC 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]