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Mapping table storage method and device, electronic equipment and storage medium

A mapping table and preset value technology, applied in the field of mapping table storage, can solve the problems of complex eMMC mapping table storage methods, low eMMC operating speed and work efficiency, so as to improve operating speed and work efficiency, speed up storage speed, reduce The effect of storage space

Pending Publication Date: 2021-06-29
GIGADEVICE SEMICON (BEIJING) INC +1
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  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, for eMMC, especially for eMMC product firmware (FW), the management of various mapping tables is very important. The establishment and storage of a mapping table will affect the operating speed and work efficiency of eMMC. , the storage method of the current eMMC mapping table is relatively complicated, resulting in low operating speed and work efficiency of eMMC

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  • Mapping table storage method and device, electronic equipment and storage medium
  • Mapping table storage method and device, electronic equipment and storage medium

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Embodiment Construction

[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, only a part of the embodiments of the present invention, not all the embodiments, and are not intended to limit the present invention.

[0050] The inventors found that there are many types of mapping tables in eMMC at present, and the storage is more complicated. Currently, the mapping tables in eMMC generally include: zone mapping table (zone table), segment mapping table (segment table), root mapping table (root table), system Mapping table (meta table), basic mapping table (basic table), system management mapping table (metamanage table) and system root mapping table (metaroot table), these mapping tables have corr...

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Abstract

The invention provides a mapping table storage method and device, electronic equipment and a storage medium. The method comprises the steps that when a first physical block is fully stored by a system mapping table and a basic mapping table for the first time and a new system mapping table and a new basic mapping table need to be stored, the new system mapping table and the new basic mapping table are directly stored in a second physical block, and an updated system management mapping table is updated and stored; and when the second physical block is fully stored by the new system mapping table and the new basic mapping table and the subsequent new system mapping table and the new basic mapping table need to be stored, the first physical block is erased, the subsequent new system mapping table and the new basic mapping table are continuously stored by the first physical block, and the updated system management mapping table is updated and stored. The storage speed of the mapping table in the eMMC is increased, the storage space occupied by the mapping table is greatly reduced, and the operation speed and the working efficiency of the eMMC are improved.

Description

technical field [0001] The invention relates to the field of memory, in particular to a method, device, electronic equipment and storage medium for storing a mapping table. Background technique [0002] eMMC (Embedded Multi Media Card) is an embedded multimedia card. eMMC is established by the MMC Association, mainly for embedded memory standards for electronic products such as mobile phones or tablet computers. eMMC integrates a controller in the package, which provides standard Interfacing and managing flash memory allows manufacturers to focus on other parts of product development and shorten time-to-market. [0003] At present, for eMMC, especially for eMMC product firmware (FW), the management of various mapping tables is very important. The establishment and storage of a mapping table will affect the operating speed and work efficiency of eMMC. , the storage method of the current eMMC mapping table is relatively complicated, resulting in low operating speed and work e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/061G06F3/064G06F3/0679
Inventor 刘颖
Owner GIGADEVICE SEMICON (BEIJING) INC