Memory space self-adaptive allocation method of memory

Abstract

The invention relates to a memory space self-adaptive allocation method of a memory. The method comprises the following steps of: dividing all sectors of each memory chip in a memory into a data areaand a mark area, reading information of each memory chip one by one, mapping a hardware address space of an actual data area of each memory chip into a logic address space, and mapping the mark area of each memory chip into a mark space address table; executing an erase operation on the sectors which are displayed to be not erased, and updating mark bytes of the sectors in the mark space for the sectors which are already subjected to the erase operation in each storage chip; setting a data initial address needing to be written into the storage chip as a logic address of the storage chip; taking all the existing data of the to-be-written sector and the to-be-written data as final data of the to-be-written sector; erasing sector data or directly writing final data into a sector by a microcontroller according to whether the sector in the storage chip executes erasing operation, repeated erasing of the storage chip is avoided, and the service life of the memory is prolonged.

Description

technical field [0001] The invention relates to the field of memory, in particular to a storage space adaptive allocation method of the memory. Background technique [0002] In embedded products, there are more and more applications for big data processing. Due to the need to process large data, the memory in the product is frequently used. For example, memory is frequently used to record logs, save frozen data, record fault information, and so on. The current application operations for memory mainly include reading and writing operations and erasing operations for data. At the same time, due to the limit of the maximum number of erasing and writing of the memory (generally 100,000 times), how to optimize the application operation of the memory to prolong its service life appear more and more important. [0003] In order to effectively save its own storage space, the existing memory mainly follows the frequent execution of erasing and reading and writing operations for da...

AI Technical Summary

Problems solved by technology

In this way, it is necessary to perform multiple repeated erasing operations very frequently, which not only reduces the space usage efficiency of the memory, but also greatly shortens the service life of the memory

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