NAND FLASH file system

A file system and file information technology, applied in the field of NAND FLASH file system, can solve the problems of small capacity and low storage speed of NAND FLASH

Inactive Publication Date: 2013-03-20
JIANGSU LEMAIDAO NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the capacity of single-chip flash memory NAND FLASH is relatively small, the storage speed is relatively low, and there are problems such as random invalid blocks

Method used

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Embodiment Construction

[0017] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] Usually, block 0 of NAND FLASH storage space must be a valid block. Therefore, you can choose to establish the corresponding system information area and status identification area in the 0th block, and at the same time, you should also reasonably establish the file information area and parameter setting area. The system inf...

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Abstract

The invention discloses a NAND FLASH file system which comprises a system information area, a state identification area, a file information area, a parameter setting area and a data storage area. The system information area is used for saving system information of a node and information about a storage device. The state identification area is used for identifying good states and bad states of all FLASH blocks, and therefore, in a data storing process, good-bad state identification bits of the blocks can be read from the state identification area at first, a valid block is found, then data is stored, and therefore the data can be prevented from being stored in an invalid block. The file information area is created in a valid block starting from the first block of the first sheet of Flash, and every time when file information is stored, a sheet is used as a unit. The parameter setting area is used for setting acquisition parameters, and mainly used for acquiring the number of channels, sampling frequency, sampling lengths and the like. The data storage area starts from the sixteenth block to the last block of relevant modules and is used for storing testing data. By means of the NAND FLASH file system, enlargement of storage capacity and improvement of storage speed are achieved.

Description

technical field [0001] The invention relates to the field of computer storage, in particular to a NAND FLASH file system. Background technique [0002] At present, in domestic and foreign storage technologies, the storage capacity is getting larger and faster, the storage speed is getting faster and faster, the flash memory technology is becoming more and more prominent, and the solid-state memory is developing faster and faster. With the increasing development of solid-state memory, FLASH memory has been widely used due to its characteristics of non-volatility, low cost, high density, low power consumption, and online reprogrammable and erasable. Compared with traditional disk storage devices, FLASH is more resistant to temperature changes, mechanical vibrations and shocks, has higher reliability, and is easy to achieve high speed, low power consumption and miniaturization, and is becoming the mainstream of memory. [0003] However, the single-chip flash memory NAND FLASH ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02
Inventor 宗竞
Owner JIANGSU LEMAIDAO NETWORK TECH
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