A storage method of eeprom

A storage area and data storage area technology, applied in the direction of memory address/allocation/relocation, etc., can solve the problems of low utilization rate and short service life of data blocks, shorten the access time, reduce the addressing time, and improve the access efficiency Effect

Active Publication Date: 2015-12-02
HUIZHOU DESAY SV AUTOMOTIVE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to overcome the low utilization rate and short service life of the prior art static storage mode data blocks and defects, provide a storage method for EEPROM, improve the utilization rate of data blocks in the EEPROM, prolong the service life of the EEPROM

Method used

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  • A storage method of eeprom
  • A storage method of eeprom
  • A storage method of eeprom

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Embodiment Construction

[0062] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0063] Such as figure 1 Shown, a storage method of EEPROM, described EEPROM is divided into valid data storage area and bad block data storage area, and described valid data storage area is used for storing valid data, and described bad block data storage area is used for storing bad block Data, the bad block data is used to store the bad block information in the EEPROM; the valid data includes factory debugging data, manual operation data and wireless reception data, correspondingly, the valid data storage area is divided into blocks for The few update area for storing factory debugging data, the slow update area for storing manual operation data and the fast update area for storing wireless receiving data;

[0064] Described EEPROM comprises the following steps during...

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Abstract

The invention relates to a storage method for an electrically erasable programmable read only memory (EEPROM). The EEPROM is divided into an effective data storage region and a bad block data storage region; the bad block data storage region is used for storing bad block data; the bad block data are used for storing bad block information in the EEPROM; effective data comprises industry debugging data, manual operation data and wireless receiving data; the effective region is divided into an extremely seldom updating region, a slow updating region and a fast updating region by taking a data block as a unit; the effective data are captured and grouped into data packets according to types of effective data; the updated data packets serving as data packet to be updated are written into the corresponding data storage regions in the EEPROM; the data packets of the industry debugging data are written in a static storage manner; and the data packets of the manual operation data and the wireless receiving data are written in a dynamic storage manner. By the storage method, the utilization rate of the EEPROM is improved, the service life of the EEPROM is prolonged, the addressing time of accessing the EEPROM is shortened, and the write correctness is improved.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to an EEPROM storage method. Background technique [0002] At present, EEPROM generally uses a static storage method to store data. The static storage method is to divide the received data into several data packets whose size is not larger than the capacity of the data block in the EEPROM according to the correlation, and write the data packets into the data blocks of the EEPROM respectively. When a new data packet is received, the new data packet is written into the data block stored corresponding to the old data packet, that is, the new data packet covers its corresponding old data packet. In this way, the corresponding same address is erased and written every time a data packet is updated, and the data block corresponding to the data packet with a fast update frequency is also erased and written quickly, and the number of times of erasing and writing of a data block is limit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/06
Inventor 张羽萍
Owner HUIZHOU DESAY SV AUTOMOTIVE
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