一种面向DSP嵌入式系统的Nandflash文件管理方法  

A Nandflash File Management Technique for DSP-Oriented Embedded System

作　　者：刘秀娟[1,2] 王浩[1,2] 齐建宇[1,2] 聂磊[2] 

机构地区：[1]宇航智能控制技术国家级重点实验室,北京100854 [2]北京航天自动控制研究所,北京100854

出　　处：《航天控制》2013年第6期76-81,共6页Aerospace Control

摘　　要：针对以DSP为核心的嵌入式系统需要实时可靠管理数据,而FAT文件系统不适合直接应用于Nandflash的情况,提出了一种基于二元组的Nandflash实时数据文件管理方法。该方法文件表信息小,且文件表不需要频繁重写,便于节约空间并能延长Nandflash使用寿命;数据存储无延时,CPU资源消耗少,简捷可靠,适合于各种无操作系统支持的嵌入式系统,已在多个项目中获得工程应用,具有较高实用价值。To fulfill the reliable and real-time data storage demands of the DSP oriented embedded sys- tems, a file management technique based on the duality group is proposed in this paper due to the FAT file management system not suitable for Nandflash. The proposed approach takes advantage of memory saving and short file table that does not need to be erased frequently. Due to its real-time, reliable data storage and CPU resource saving, this approach is already adopted by some projects and is especially suitable for such embedded systems without operating System.

关 键 词：文件管理 NANDFLASH 嵌入式系统 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]