文件名称:yaffs2文件系统映像制作工具
文件大小:1.58MB
文件格式:BZ2
更新时间:2020-10-02 04:55:48
yaffs2 文件系统映像 制作工具
YAFFS is a log-structured filesystem. It is designed particularly for NAND (as opposed to NOR) flash, to be flash-friendly, robust due to journalling, and to have low RAM and boot time overheads. File data is stored in 'chunks'. Chunks are the same size as NAND pages. Each page is marked with file id and chunk number. These marking 'tags' are stored in the OOB (or 'spare') region of the flash. The chunk number is determined by dividing the file position by the chunk size. Each chunk has a number of valid bytes, which equals the page size for all except the last chunk in a file.