Method and apparatus for extending life of erasable chip

Abstract

The present invention discloses a method and an apparatus for extending the life of an erasable chip, and belongs to the technical field of chips. The method comprises: allocating N discontinuous read and write spaces for a specified file according to the size of the specified file in the erasable chip, and storing the spatial address of each read and write space, wherein the N is greater than or equal to 2; writing initial data of the specified file into the first read and write space, setting the read and write identification of the spatial address of the first read and write space to be valid, and setting the read and write identification of the spatial address of other read and write spaces excluding the first read and write space to be invalid; and carrying out new padding data writing on the specified file, writing the new padding data of the specified file into the second read and write space, updating the read and write identification of the second read and write space to be valid, and updating the read and write identification of the first read and write space to be invalid. According to the method and apparatus disclosed by the present invention, the life of the whole chip is greatly improved, and requirements of the practical application are better satisfied.

Description

technical field [0001] The invention relates to the field of chip technology, in particular to a method and a device for prolonging the service life of a rewritable chip. Background technique [0002] Rewritable chips, such as flash memory chips, electrified erasable programmable read-only memory EEPROM, security chip SE, etc., are widely used in various fields because the existing information in the rewritable chip can be erased and reprogrammed. The writing operation of the rewritable chip must be performed in the blank area. If the target area already has data, it must be erased first and then written. Therefore, the erasing operation is the basic operation of flash memory. But every erasure and re-operation of the chip will consume the life of the chip. In order to prolong the service life of the chip as much as possible, professional chips are generally used to replace ordinary chips. For example, for the security chip SE, industrial-grade M2M chips or car-level M2M ch...

AI Technical Summary

Problems solved by technology

But every erasing and re-operation of the chip will consume the life of the chip

In order to prolong the service life of the chip as much as possible, professional chips are generally used to replace ordinary chips. For example, for the security chip SE, industrial-grade M2M chips or car-level M2M chips can be used. In terms of field applications, even industrial-grade or automotive-grade chips cannot meet the application requirements, and the price of professional chips is relatively expensive, which greatly increases the cost of using this chip and the equipment using this chip

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