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Method and device for page self-adaption of NAND Flash

A self-adaptive, page technology, applied in the field of storage, can solve problems such as maintenance difficulties, and achieve the effect of simplifying software code design

Active Publication Date: 2014-06-04
高新兴物联科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a method and device for NAND Flash page self-adaptation, aiming to solve the problem that existing NAND Flash needs different codes to cause maintenance difficulties when accessing

Method used

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  • Method and device for page self-adaption of NAND Flash
  • Method and device for page self-adaption of NAND Flash
  • Method and device for page self-adaption of NAND Flash

Examples

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Embodiment 1

[0051] Embodiment 1 of the present invention proposes a method for NAND Flash page self-adaptation. Such as image 3 As shown, the method of Embodiment 1 of the present invention includes the following steps:

[0052] S1, when carrying out NAND Flash page reading and writing operation, and when the page size of described NAND Flash is first numerical value and second numerical value, the space of the 3rd numerical value of described NAND Flash page starting position is carried out reading and writing operation; So said third value is less than the first value and the second value;

[0053] S2. When the page read / write operation of the NAND Flash is performed, and the page size of the NAND Flash is a third value, the read / write operation is performed on the entire space of the NAND Flash.

[0054] Embodiment 1 of the present invention is illustrated by taking the EFS file system, the first numerical value is 2KB, the second numerical value is 4KB, and the third numerical valu...

Embodiment 2

[0064] Embodiment 2 of the present invention provides a device for NAND Flash page self-adaptation. Such as Figure 5 As shown, the device of Embodiment 2 of the present invention includes a large page read-write module 10 and a small page read-write module 20, wherein the large page read-write module 10 is used for NAND Flash page read and write operations, and the page size of the NAND Flash is the first When a numerical value and the second numerical value, the space of the 3rd numerical value of the NAND Flash page start position is read and written, and the 3rd numerical value is less than the first numerical value and the second numerical value; Write operation, and when the page size of the NAND Flash is the third value, read and write operations are performed on the entire space of the NAND Flash.

[0065] The device of the second embodiment of the present invention is applied to the EFS file system, the first value is 2KB, the second value is 4KB, and the third value...

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Abstract

The invention is applicable to the technical field of storage, and provides a method and a device for page self-adaption of an NAND Flash. The method includes the following steps: when read-write operations of NAND Flash pages are performed and the page size of the NAND Flash is equal to a first numerical value and a second numerical value, performing a read-write operation on a space of a third numerical value of an initial position of the NAND Flash pages; when the read-write operations of the NAND Flash pages are performed and the page size of the NAND Flash is smaller than the third numerical value, performing read-write operations on all spaces of the NAND Flash. The third numerical value is smaller than the first numerical value and the second numerical value. The method and the device are applicable to read-write operations of NAND Flashes with different page sizes.

Description

technical field [0001] The invention belongs to the technical field of storage, and in particular relates to a method and device for NAND Flash page self-adaptation. Background technique [0002] With the rapid development of embedded technology, various applications have higher requirements for storage devices. Due to factors such as cost and size, embedded devices usually need to use a large-capacity non-volatile storage device. NAND Flash memory is currently widely used in electronic products such as mobile phones, digital cameras, and TV set-top boxes due to its advantages of large storage capacity, low price, and no loss of data when power is turned off. [0003] The structure of the NAND Flash device is divided into multiple storage blocks (Block), and each Block is composed of multiple pages (Page). Block is the smallest erasable unit of NAND Flash, and the basic unit of Block, Page is the smallest programmable unit of NAND Flash. Page is further divided into main ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
Inventor 徐凯
Owner 高新兴物联科技股份有限公司