A method for improving data writing speed of electronic hard disk

Abstract

A method for increasing data writing speed of an electronic hard disk includes that a cache with capacity of 128MByte is externally connected to a controller of the electronic hard disk and used as a temporary memory space for interface data; when the data writing speed of an interface of the electronic hard disk is higher than writing speed for flash memory of a flash memory controller, the data are temporarily stored in the cache; and when the flash memory is idle, the data are read from the cache and are further written into the flash memory. The method for increasing data writing speed of the electronic hard disk has the advantages that integral data writing speed of the electronic hard disk is fast and stable, the problem that the data writing speed of the hard disk is suddenly reduced when a certain amount of capacity of the hard disk is used is avoided, data throughput rate of a port can be increased, an integral capacitor array is added in the system to be used as a standby power source, accordingly data cannot be lost assuredly even in an abnormal power-down condition, and normal operation of the electronic hard disk is guaranteed after power-on.

Description

technical field [0001] The invention relates to a method for increasing the data writing speed of an electronic hard disk. Background technique [0002] As a new non-volatile storage medium, flash memory has become very popular in the field of consumer electronics due to its many advantages such as high storage density, easy portability, low power consumption, long data retention time after power failure, and good shock resistance. In the field of industry and military industry, it has also received more and more attention and popularity. In some large-capacity data storage applications, there are often multiple slices of flash memory cascaded or used as an entire column to expand storage space and improve data throughput. However, since the flash memory needs to wait for a long time after data is written, to ensure that the data is written correctly. Typically, a write needs to wait for 200us, and the maximum waiting time needs to be 700us. If you follow the normal opera...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for increasing the writing speed of electronic hard disk data, which solves the technical problem in the prior art that the writing speed will suddenly decrease when the capacity of the electronic hard disk is used to a certain extent

Images