【摘要】 分析了FAT文件系统的原理及其各部分结构组成。在此基础上,介绍了ST方案机顶盒上文件系统的实现,包括任意路径的访问、文件的读写和特定类型文件的搜索。通过一段时间的测试,该文件系统能很好地运行于机顶盒上,并能通过与USB层的配合正确地读写U盘文件。该文件系统的实现为ST机顶盒的基于文件功能进一步开发奠定了基础。更多还原

【Abstract】 The principle of FAT file system and the structure and composition of each part are analyzed.The realization of a file system on ST set-top-box is described.The content includes any path access,the reading and writing of files,and the searching of some certain types of files.By testing,this file system runs well on this set-top-box,and can read or write files in USB disk correctly by cooperating with USB layer.The realization of this file system has laid foundation for further development based on the file system on ST set-top-box.更多还原