计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (16): 70-72.

• 研发、设计、测试 • 上一篇    下一篇

实现实时FAT文件系统的一种简单方法

刘可嘉1,梁阿磊2   

  1. 上海交通大学 软件学院,上海 200240
  • 收稿日期:2007-11-21 修回日期:2008-02-25 出版日期:2008-06-01 发布日期:2008-06-01
  • 通讯作者: 刘可嘉

Simple approach to implement real time FAT file system

LIU Ke-jia1,LIANG A-lei2   

  1. School of Software,Shanghai Jiao Tong University,Shanghai 200240,China
  • Received:2007-11-21 Revised:2008-02-25 Online:2008-06-01 Published:2008-06-01
  • Contact: LIU Ke-jia

摘要: 出于兼容性等方面的考虑,目前市面上常见的嵌入式智能设备多采用FAT文件系统。然而FAT文件系统由于设计上的缺陷导致实时性比较差。针对这个问题提出了一套简单易行的方案,在不影响兼容性的前提下大幅度改善了FAT文件系统的响应时间(实时性)。

关键词: FAT, 文件系统, 实时性, 压缩FAT表, 空闲簇索引

Abstract: Most embedded smart devices in the market now use the FAT file system because of its compatibility.However,the FAT was not well designed to meet real time requirements.This article proposes a simple solution that greatly improves the response time of the FAT file system,without hurting its compatibility.

Key words: FAT, file system, real time, compressed FATfree-cluster index