Erasure time acquisition method and device, electronic equipment and storage medium

Abstract

The invention discloses an erasing time acquisition method and device, electronic equipment and a storage medium, and the acquisition method comprises the following steps: carrying out a preset number of periodic cycle operations of pre-programming, checking, erasing, over-erasing repair and data repair on a chip; during the period of the periodic cycle operation, continuously reading the current enable signal in each sector in the chip; according to the read enable signals, recording the duration time of each enable signal in each sector until the end of the periodic cycle operation. According to the acquisition method, the duration of the enable signal of each sector in the chip in the periodic cycle operation is read to acquire the time of each sector in each stage of the periodic cycle operation, the time can be used as an important basis for chip design and debugging, and chip development and manufacturing are facilitated.

Description

technical field [0001] The present application relates to the field of chip technology, in particular, to a method, device, electronic device and storage medium for acquiring erasing time. Background technique [0002] The erase operation of the Nor Flash chip includes sector erase (Sector Erase, the smallest unit of erasure, 512 bytes is a sector), block erase (Block Erase, generally a unit of 64K) and full chip erase ( Chip Erase). The typical sector erasing time is 45ms, but as the number of erasing and writing operations continues to increase, the sector erasing time will also continue to increase. [0003] The erasing and writing cycle of the storage unit (pre-programming-checking-erasing-over-erasing repairing-data repairing, Cycle) can generally support a minimum of 100,000 times. According to the erasing standard of the chip, the sector during the entire Cycle process The erasing time cannot exceed 300ms. [0004] In the prior art, it is generally only possible to...

AI Technical Summary

Problems solved by technology

This method can only know the time of the entire erasing operation, but cannot obtain the time distribution of each operation stage in the entire cycle process, and can only obtain the erasing time of the entire operation object, and cannot distinguish the operation time corresponding to a specific area, but these data It can be used as an important adjustment reference in the design and manufacture of chips

[0006] For the above problems, there is no effective technical solution

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