嵌入式FAT12文件系統(tǒng)

論文字?jǐn)?shù):11595,頁數(shù):37

摘 要
 隨著電子技術(shù)的快速發(fā)展，特別是大規(guī)模集成電路的產(chǎn)生而出現(xiàn)的微型機(jī)，使現(xiàn)代科學(xué)研究得到了質(zhì)的飛躍，而嵌入式微控制器技術(shù)的出現(xiàn)則是給現(xiàn)代工業(yè)控制領(lǐng)域帶來了一次新的技術(shù)革命。由嵌入式微控制器組成的系統(tǒng)，最明顯的優(yōu)勢就是可以嵌入到任何微型或小型儀器、設(shè)備中。本論文介紹的是在LPC2214為核心的變壓器綜合測試儀系統(tǒng)中實現(xiàn)嵌入式FAT12文件系統(tǒng),使得該系統(tǒng)能夠采用文件格式來進(jìn)行測試數(shù)據(jù)的存儲.論文內(nèi)容主要包括掌握嵌入式系統(tǒng)中FAT12文件系統(tǒng)的基本知識，用C語言編寫部分程序。程序功能包括建立目錄、刪除目錄、改變當(dāng)前目錄、用戶文件/目錄名轉(zhuǎn)換成系統(tǒng)名、獲取指定目錄開始簇號等等一系列操作，本論文涉及的程序只是文件系統(tǒng)中的一部分，結(jié)合其它程序能夠?qū)崿F(xiàn)嵌入式系統(tǒng)的文件操作。本論文介紹了以上相關(guān)部分軟件的設(shè)計。
 
關(guān)鍵詞： ARM系統(tǒng), 嵌入式, 文件系統(tǒng)
Abstract
 Along with the rapid development of electronic technology, especially for the appearance of microcomputer with large scale integrated circuit, the research of modern technology has made a essential progress. The show up of embedded micro-controller technology has brought a newly technical revolution to the modern industrial control area. The most obvious advantage of a system built up with the embedded micro-controller is that it can be embedded into any micro or little scale device and equipment. This study introduces the implement of embedded FAT12 documental system onto the transformer integrated test system whose core is LPC2214, which makes this system capable of using documental format for test data storage. This study includes the mastery of the basic knowledge of FAT12 documental system in the embedded system, and part of the programs in C language. The functions of this program includes building a catalog, deleting a catalog, changing current catalog, converting user’s document/catalog name into system name, acquiring the beginning cluster number of specific catalog and other series of operations. The program covered in this dissertation is just a part of the documental system.  The documental operation of embedded system can be realized combining with other part. This paper also presents the design of the related parts of software mentioned above.
 
Keyword: ARM System,   Embedded  System,   File System

目  錄

摘 要 I
Abstract II
第一章 緒論 1
1.1 概述 1
1.2 開發(fā)背景 2
1.3 開發(fā)環(huán)境 2
1.4 開發(fā)語言 3
第二章 文件系統(tǒng)目錄操作知識 5
2.1 FAT12文件系統(tǒng) 5
2.1.1 FAT12基礎(chǔ)知識的熟悉 5
2.2  FDT介紹 6
2.2.1 FDT簡介 6
2.2.2 FDT數(shù)據(jù)結(jié)構(gòu) 6
2.3 FAT磁盤文件管理系統(tǒng)的組成 7
2.3.1 磁盤數(shù)據(jù)的物理存儲 7
2.3.4磁盤目錄文件的管理方式 9
2.4 目錄操作 10
第三章  目錄函數(shù)操作程序設(shè)計 12
3.1 各目錄函數(shù)程序設(shè)計 12
3.1.1 尋找空目錄項函數(shù)操作 12
3.12尋找名稱相同的目錄項 17
3.13刪除目錄 18
3.14創(chuàng)建子目錄 19
3.15在已有的目錄下創(chuàng)建文件名 19
第四章 總結(jié) 21
致謝 22
參考文獻(xiàn) 23
附錄一  程序代碼 24
1.在父目錄下查找子目錄 24
2.在已有父目錄下創(chuàng)建文件 29