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FLASH memory and storage file management method

A FLASH memory and file storage technology, which is applied in the direction of file system management, static memory, read-only memory, etc., can solve the problems of low indexing efficiency and large allocation of information storage space, so as to improve practicability, reduce storage space, and improve indexing efficiency effect

Active Publication Date: 2018-10-16
珠海极海半导体有限公司
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Problems solved by technology

[0005] The invention provides a FLASH memory and a storage file management method, which are used to solve the technical problems in the prior art that the storage space occupied by the allocation information is large and the indexing efficiency is low

Method used

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  • FLASH memory and storage file management method

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Embodiment Construction

[0040] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0041] In order to support operations such as random writing, reading, or deleting of FLASH file data, an embodiment of the present invention provides a FLASH memory, the FLASH memory includes a FLASH storage area, and the FLASH storage area is divided according to the minimum unit of FLASH erasing It is divided into multiple pages starting from number 0, and then the storage area of ​​FLASH is divided according to functions. In this embodiment, the FLASH memory chip can be applied to a near field communication card (NearFieldCommunication, NFC card for short). "Defined as one or more continuous "pages" used to store a type of data, each "page" has a storage capacity of 1...

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Abstract

The invention provides a FLASH memory and a storage file management method. The FLASH memory is used for writing, reading or deleting files. The FLASH memory includes a FLASH memory area, which is divided into a plurality of pages starting from a number 0 in the smallest unit of FLASH erasing. The FLASH memory area includes a boot area for describing information of the FLASH memory; a storage pagevolume comprising a plurality of items, wherein the address order stored by each item corresponds to the item number, each item is used for storing the page number of the next storage page of file data, and the item numbers correspond to the page numbers of the corresponding storage pages one by one; a file description volume used to describe the information of a storage file, wherein the information of the storage file includes: file information and the starting page number of the file; and a file data storage area used to store the file data. The FLASH memory and the storage file managementmethod provided by the invention can reduce the storage space required for the storage page volume and improve the index efficiency.

Description

technical field [0001] The invention relates to the technical field of FLASH memory, in particular to a FLASH memory and a storage file management method. Background technique [0002] FLASH memory is a non-volatile memory (Non-Volatile Memory) based on semiconductor technology. It has the advantages of low power consumption, large capacity, small size, light weight, and high access speed. It has gradually replaced other semiconductor memory devices and is widely used. in mobile electronic products. Any FLASH memory has a fixed storage capacity, and its write operation can only be performed in empty or erased cells, so in most cases, erasure must be performed before the write operation, but the FLASH chip The lifespan is limited, and the FLASH chip will be easily damaged if the maximum erasing times are exceeded. [0003] The commonly used FLASH chip divides the FLASH into several storage areas according to the FLASH capacity, the number of files and the size, and then rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G11C16/08
CPCG11C16/08G06F16/11
Inventor 楼鹏王旬贵谢跃书
Owner 珠海极海半导体有限公司
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