VxWorks-operating-system-based file storage structure and storage method

The invention discloses a VxWorks-operating-system-based file storage structure and a VxWorks-operating-system-based file storage method. A true flash file system (TFFS) is implemented on two NORFLASHs, files to be stored are classified according to the importance degrees and read-write operation fr...

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Bibliographic Details
Main Authors LI ZHENG, JIA XIANGYU, SONG JINCHUAN, ZENG QINGZHAO, WANG CHUANQI
Format Patent
LanguageChinese
English
Published 27.06.2012
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a VxWorks-operating-system-based file storage structure and a VxWorks-operating-system-based file storage method. A true flash file system (TFFS) is implemented on two NORFLASHs, files to be stored are classified according to the importance degrees and read-write operation frequencies of the files to be stored, and important system files and data files are separately stored, so that physical influence between two file partitions is reduced, and the reliable running of the system is ensured. A high-priority task T1 quickly finishes caching massive burst data into a synchronous dynamic random access memory (SDRAM) to radically ensure the quick recording of the burst data, and informs a low-priority task T2 by a message. After receiving the message, the task T2 sequentially stores the data cached in the SDRAM into a specified TFFS2 file partition in a file form. The SDRAM caches the massive burst data, so that a conflict between the massive stored data and low-speed external equipment is
Bibliography:Application Number: CN20111445505