摘要： 针对GPRS数据终端单元(DTU)的智能化需求，提出一种Cramfs+JFFS2+Initramfs的嵌入式混合文件系统设计方案。采用自顶向下和自底向上相结合的设计方法，以dropbear为例介绍组件的选择和实现。在系统集成设计中，给出一种软链接技术替代复制的设计方法，并对脚本设计进行说明。该嵌入式文件系统已成为智能化GPRS DTU的核心模块，运行稳定。
关键词:
嵌入式Linux,
混合文件系统,
智能化
Abstract: Aiming at intelligent requirement of GPRS Data Terminal Unit(DTU), this paper proposes a design scheme for embedded hybrid file system Cramfs+JFFS2+Initramfs. It adopts combination of top-down analysis and bottom-up analysis, takes dropbear as the example to introduce component choosing method and implementation process. In the design of system integration, it gives a design tactics to adopt soft link technology instead of copying, and illustrates the script design. It has become a key module of intelligent GPRS DTU and it runs steadly.
Key words:
embedded Linux,
hybrid file system,
intelligent
中图分类号:
刘庆敏;田 岚;何国圆;于元明. 智能化GPRS DTU的嵌入式混合文件系统[J]. 计算机工程, 2009, 35(12): 256-258.
LIU Qing-min; TIAN Lan; HE Guo-yuan; YU Yuan-ming. Embedded Hybrid File System for Intelligent GPRS DTU[J]. Computer Engineering, 2009, 35(12): 256-258.