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A device and method for simulating nandflash

A technology of metadata and flash memory, which is applied in the field of NandFlash-simulating devices, and can solve problems such as inconvenient test operations

Active Publication Date: 2018-06-12
GIGADEVICE SEMICON (BEIJING) INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, in the testing process of FTL, it is necessary to constantly ask the data on the NandFlash, and judge the stability and efficiency of the FTL through the feedback results, but this test method is applied to the NandFlash in the hardware, which is inconvenient for the test operation

Method used

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  • A device and method for simulating nandflash
  • A device and method for simulating nandflash
  • A device and method for simulating nandflash

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0049] figure 1 A block diagram of a device structure for simulating NandFlash provided in Embodiment 1 of the present invention, such as figure 1 As shown, the device 100 includes: an information data module 101, a metadata module 102, a user data module 103, a first file access storage module 104, a second file access storage module 105, a third file access storage module 106, a An access interface 107 , a second access interface 108 and a third access interface 109 .

[0050] Wherein, the information data module 101 is used for information data management. Wherein the information data includes information such as the address identification and ID of the NandFlash, and the information data is stored in the first file access storage module 104 .

[0051] The metadata module 102 is used for metadata management. Wherein, the metadata is stored in a file in units of Blocks, forming a Block file of metadata; wherein, the metadata includes a mapping table from a logical address...

Embodiment 2

[0068] image 3 It is a flow chart of a method for simulating NandFlash provided in Embodiment 2, which is executed by a device for simulating NandFlash. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as A process or method depicted by a flowchart. Although the flowcharts describe various operations (or steps) as sequential processing, many of the operations may be performed in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figures, and in some alternative implementations, the functions / acts noted may be in a different order than noted in the figures occur. like image 3 As shown, the method includes:

[0069] S301: Manage information data through the information data module.

[0070] S302: Manage metadata through the meta...

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Abstract

The present invention discloses an apparatus and a method for simulating NandFlash. The apparatus comprises an information data module, a metadata module, a user data module, a first file access storage module, a second file access storage module, a third file access storage module, a first access interface, a second access interface and a third access interface, wherein the information data module is used for management of information data; the metadata module is used for management of metadata; the user data module is used for management of user data; the first file access storage module is used for storing the information data; the second file access storage module is used for storing the metadata; the third file access storage module is used for storing the user data; the first access interface is used for carrying out data transmission between the information data module and peripheral equipment; the second access interface is used for carrying out data transmission between the metadata module and the peripheral equipment; and the third access interface is used for carrying out data transmission between the user data module and the peripheral equipment. According to the present invention, high-efficiency storage and management functions of data can be realized.

Description

technical field [0001] The invention relates to the field of analog storage, in particular to a device and method for simulating NandFlash. Background technique [0002] eMMC (Embedded Multi Media Card, embedded memory) is an embedded memory mainly for electronic devices such as mobile phones or tablet computers. Among them, eMMC contains non-linear flash memory (NandFlash). At present, NandFlash has gradually become one of the main storage media of embedded systems. It is unimaginable to manage data on NandFlash without a file system. [0003] In order to facilitate the management of data on NandFlash, FTL (Flash Translation Layer, file transfer layer) is introduced. Once there is a problem with FTL, it will cause errors in data reading and writing, and more seriously, eMMC cannot be accessed. Therefore, the stability and efficiency of FTL are crucial to eMMC. When using FTL to manage data on NandFlash in eMMC, FTL should be tested first. [0004] In the prior art, during...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 庄开锋
Owner GIGADEVICE SEMICON (BEIJING) INC