Detection method and system applied to Flash intelligent analysis detection, intelligent terminal and computer readable storage medium

A detection method, a technology of intelligent analysis, applied in computing, static memory, error detection/correction, etc., which can solve problems such as reduction of effective capacity, poor accuracy of badPage and/or badColumn, etc.

Pending Publication Date: 2021-06-29
SHENZHEN SANDIYIXIN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the development of the Flash process, people pay more and more attention to the detection and analysis of Bad Page and / or Bad Column, but the inventor believes that the detection and analysis method in the related technology is relatively simple, and the Flash is analyzed through the detection and analysis method in the related technology. After the bad Page and / or bad Column inside, the accuracy of bad Page and / or bad Column is poor, which may reduce the effective capacity of Flash

Method used

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  • Detection method and system applied to Flash intelligent analysis detection, intelligent terminal and computer readable storage medium
  • Detection method and system applied to Flash intelligent analysis detection, intelligent terminal and computer readable storage medium
  • Detection method and system applied to Flash intelligent analysis detection, intelligent terminal and computer readable storage medium

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Embodiment 1

[0092] The embodiment of the present application provides a detection method applied to Flash intelligent analysis and detection, and the main flow of the method is described as follows:

[0093] refer to figure 1 , S1, extract the template Block from all the Blocks of Flash, based on the template Block, obtain the original Column subset, the original Page subset, the total Column set including all the original Column subsets, and the Page total set including all the original Page subsets, As well as the Block collection including the Column collection and the Page collection, the default bad Column collection, the bad Page collection, the error threshold that can be updated following the number of iterations, and the initial bad Block containing the bad Column collection and the bad Page collection Template, the error threshold includes the Column error threshold corresponding to the total set of bad Columns and the Page error threshold corresponding to the total set of bad P...

Embodiment 2

[0184] refer to Figure 8 , in one embodiment, provide a kind of detection system that is applied to Flash intelligent analysis detection, correspond to the detection method in the above-mentioned embodiment one, be applied to the analysis detection of the effective capacity of Nand Flash, this system comprises initial template establishment Module 1, template update module 2, template iteration module 3 and final template generation module 4. The detailed description of each functional module is as follows:

[0185] The initial template building module 1 is used to obtain the Column collection, Page collection, and the Block collection including the Column collection and the Page collection, and preset bad Column collection, bad Page collection, and errors that can be updated following the number of iterations Threshold, and the initial bad Block template including the total set of bad Columns and the total set of bad Pages;

[0186] Template update module 2 is used to alte...

Embodiment 3

[0190] In one embodiment, an intelligent terminal is provided, which includes a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the memory stores training data, algorithm formulas and filtering mechanisms in the training model Wait. The processor is used to provide computing and control capabilities, and the processor implements the following steps when executing a computer program:

[0191] S1. Get the total set of Column, the total set of Page, and the total set of Blocks containing the total set of Column and the total set of Page, preset the total set of bad Column, the total set of bad Page, the error threshold that can be updated with the number of iterations, and include bad Column The initial bad block template of the total collection and the bad Page collection;

[0192] S2. Alternately follow the bad page selection strategy and bad column selection strategy, alternately obtain bad Page elements and bad Column e...

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Abstract

The invention relates to a detection method and system applied to Flash intelligent analysis and detection, an intelligent terminal and a computer readable storage medium. The detection method comprises the steps: S1, acquiring a Column total set, a Page total set and a Block total set, and presetting a bad Column total set, a bad Page total set, an error threshold value and an initial bad Block template; S2, alternately acquiring bad Page elements and bad Column elements in sequence from the Block total set based on an error threshold value, and alternately updating a bad Page total set and a bad Column total set in sequence; S3, on the basis of all the bad Column total sets corresponding to different error thresholds and all the bad Page total sets corresponding to different error thresholds, updating the error thresholds according to a bad template iteration strategy, obtaining a final Column total set from all the bad Column total sets, and obtaining a final Page total set from all the bad Page total sets; S4, obtaining a final bad Block template. The method has the advantages that the influence of the bad Page on follow-up operation of selecting bad Column elements is reduced, generation of false bad Column is reduced, and then the effective capacity of Nand Flash after analysis and detection is improved.

Description

technical field [0001] The present invention relates to the technical field of Flash analysis and detection methods, in particular to a detection method, system, intelligent terminal and computer-readable storage medium applied to Flash intelligent analysis and detection. Background technique [0002] Flash, also known as flash memory, is a memory that allows multiple erasing or writing during operation. At present, Flash is mainly divided into Nand Flash and Nor Flash. Compared with Nor Flash, Nand Flash has the advantages of fast erasing and writing speed, large storage capacity, and low unit cost. Therefore, Nand Flash is more widely used. Our commonly used Nand Flash Products include flash drives and digital memory cards. [0003] Nand Flash can be physically divided into blocks (also called Block), pages (also called Page), columns (also called Column) or physical units (also called Cell). Nand Flash is composed of several blocks, and each block is composed of several...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C29/04G11C29/10
CPCG11C29/04G11C29/10G11C29/76G11C29/42G11C29/4401G06F11/0727G06F11/0751G06F11/0793
Inventor 张如宏胡来胜陈向兵张辉
Owner SHENZHEN SANDIYIXIN ELECTRONICS CO LTD
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