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Data storage method and device in EEPROM

A technology of data storage and storage location, applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve the problems of insufficient data, bad block failure, affecting the service life of EEPROM, etc., to improve the service life, Delay the effect of bad blocks

Pending Publication Date: 2021-03-19
LAUNCH TECH CO LTD
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  • Claims
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Problems solved by technology

Under this method, for 1 million erasing times, there may be no problem for ordinary operations, but it is not enough for some frequent data. For example, if the mileage of a car is saved once for 0.1 kilometers, then the vehicle has driven 100,000 kilometers has already reached 1 million times, but the vehicle must not only travel 100,000 kilometers. In the prior art, the car mileage in this situation is stored in a few individual storage blocks in the EEPROM, and these storage blocks will soon be due to The number of erasing and writing is close to the limit, and bad block faults occur, which greatly affects the service life of the entire EEPROM

Method used

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  • Data storage method and device in EEPROM
  • Data storage method and device in EEPROM
  • Data storage method and device in EEPROM

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0054] The embodiment of the present application discloses a data storage method in EEPROM, see figure 1 As shown, the method includes:

[0055] S11: receiving current real-time data corresponding to the target data type;

[0056] S12: Determine the storage location of the last historical data stored in the EEPROM corresponding to the target data type to obtain the target historical storage location, and determine the logical block corresponding to the target historical storage locat...

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Abstract

The invention discloses a data storage method and device in an EEPROM. The data storage method comprises the following steps: receiving current real-time data corresponding to a target data type; determining a storage position of previous historical data stored in the EEPROM and corresponding to the target data type to obtain a target historical storage position, and determining a logic block corresponding to the target historical storage position as a target logic block; and storing the current real-time data to the next logic block adjacent to the target logic block in the EEPROM. Accordingto the method and the device, the new data is cyclically stored in the whole EEPROM instead of being repeatedly stored in the same logic block, so that the phenomenon of bad blocks in the EEPROM is delayed, and the service life of the EEPROM is integrally prolonged.

Description

technical field [0001] The invention relates to the field of computer storage, in particular to a data storage method and device in an EEPROM. Background technique [0002] EEPROM (Electrically Erasable Programmable read only memory, electrically erasable programmable read-only memory) due to its high reliability and long erasing times (for example, 1 million erasable times), data will not be lost after power failure, etc. It is widely used in embedded systems to save some important data that needs to be saved frequently. [0003] In the existing usage methods, usually the user only relies on the characteristics of the EEPROM itself to ensure the reliability of the data. Under this method, for 1 million erasing times, there may be no problem for ordinary operations, but it is not enough for some frequent data. For example, if the mileage of a car is saved once for 0.1 kilometers, then the vehicle has driven 100,000 kilometers has already reached 1 million times, but the ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0616G06F3/064G06F3/0644G06F3/0679
Inventor 刘均李森
Owner LAUNCH TECH CO LTD
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