Method for managing Nandflash memory data

A memory data and data technology, applied in the field of Nandflash memory partition management, can solve problems such as failure, data loss storage, memory block damage, etc., to achieve the effect of convenient management and use, clear data partition, and reduce management difficulty

Inactive Publication Date: 2017-02-15
易充新能源(深圳)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the defects of the prior art, the purpose of the present invention is to provide a method of Nandflash memory data management, aiming to solve the problem of data loss or storage failure caused by memory block damage when reading and writing data in the prior art

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  • Method for managing Nandflash memory data
  • Method for managing Nandflash memory data
  • Method for managing Nandflash memory data

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] The invention provides a novel method for managing data in memory based on Nandflash. The invention includes Nandflash memory partitioning, data memory block initialization, data management parameter initialization, partition memory data writing, partition memory data reading, and partition data management parameter update; Valid data enables fast and correct writes and reads.

[0030] Such as figure 1 As shown, classify according to the type of data that actually needs to be stored, allocate the data with the maximum capacity in a single memory block according to the data capacity requir...

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Abstract

The invention discloses a method for managing Nandflash memory data. The method comprises the following steps: S1, partitioning a memory block, and initializing a data memory block; S2, initializing data parameters; S3, performing a write operation on data; S4, updating the data parameters; and S5, performing a reading operation on the data. Nandflash is used for storing data, has high adaptability to large-capacity storage space generally required by existing equipment, and is acceptable for people on the aspect of cost. The method for managing the Nandflash memory data has high convenience and practicability in management data applications. Specific to the defects that bad blocks tend to appear and memory blocks are erased frequently during a cross-block operation and the storage of important data is influenced due to storage of an Nandflash memory in blocks, effective data partition management is performed in conjunction with actual content and size of stored data; a unified operation interface is defined; and codes are convenient to transport.

Description

technical field [0001] The invention belongs to the technical field of Nandflash memory partition management, and more specifically relates to a method for managing Nandflash memory data. Background technique [0002] Nandflash has a fast writing speed, a small chip area, and especially a large capacity, which makes it an obvious advantage. A page is the basic storage unit in Nandflash. A page is generally 512 B (there is also a large page Nandflash with 2 kB per page), and multiple pages form a block. The number of pages in a block in different memories is not the same, usually 16 pages or 32 pages are more common. The block capacity calculation formula is relatively simple, which is the product of the page capacity and the number of pages in the block. According to the capacity of FLASH Memory, the size of blocks and pages in different memories may be different, and the number of pages in a block may also be different. Nandflash memory consists of multiple blocks arrang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/06
CPCG06F12/0653
Inventor 钟团娟彭文科
Owner 易充新能源(深圳)有限公司
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