| 基于索引文件的U盘数据存储模块设计和实现 |
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| 引用本文： | 董培臣,孙振国,陈强,张文增.基于索引文件的U盘数据存储模块设计和实现[J].计算机工程,2008,34(7):251-253. |
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| 作者姓名： | 董培臣 孙振国 陈强 张文增 |
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| 作者单位： | 清华大学机械工程系先进成形制造教育部重点实验室,北京,100084 |
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| 摘 要： | 研制了基于索引文件的U盘数据存储模块。该模块在DSP控制系统基础上扩展了USB主控芯片CH375，通过在DSP内部嵌入USB主机的控制程序，实现对U盘的数据存储功能。针对一般Flash存储介质的U盘，该模块的嵌入式程序实现了基于索引文件的数据存储结构，提高了文件的存储效率。实验表明该模块运行可靠、可移植性好，能满足螺旋焊管截面参数在线测量系统的数据存储要求。
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| 关 键 词： | 在线测量 数据存储 FAT文件系统 |
| 文章编号： | 1000-3428(2008)07-0251-03 |
| 修稿时间： | 2007年6月14日 |
Design and Realization of Data Storage Module with U-Disk Based on Index File |
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| DONG Pei-chen,SUN Zhen-guo,CHEN Qiang,ZHANG Wen-zeng.Design and Realization of Data Storage Module with U-Disk Based on Index File[J].Computer Engineering,2008,34(7):251-253. |
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| Authors: | DONG Pei-chen SUN Zhen-guo CHEN Qiang ZHANG Wen-zeng |
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| Affiliation: | (Key Laboratory of Advanced Materials Processing Technology of Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing 100084) |
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| Abstract: | The paper designs a module of data storage with U-Disk based on index file. It meets the fast storing requirement of a great deal of original data gained in the on-line profile measurement system of spiral weld steel pipe with large diameter. The module consists of DSP control system and extended USB host chip named CH375. It realizes the function of data storage in the U-Disk, using the program that embedded in DSP. A format of data storage based on index file is applied to improve the speed of file storage, and it leaves out the searching work of FAT area and root area on the U-Disk. Experiments show that the module is stable and has excellent transplantation. The module can be used in many other systems that need the function of fast data storage. |
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| Keywords: | online measurement data storage FAT file system |
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