Method and system for data writing of flash memory storage device
A technology for flash memory storage and device data, applied in memory systems, static memory, electrical digital data processing, etc., can solve problems such as data access errors, and achieve the effect of improving stability and reliability
Active Publication Date: 2017-06-30
SHENZHEN NETCOM ELECTRONICS CO LTD
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[0003] Based on this, it is necessary to provide a data writing method for a flash storage device that can ensure accurate data access for the problem that traditional flash storage devices are prone to data access errors due to repeated erasing and writing operations.
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[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0039] figure 1 It is a flowchart of a method for writing data to a flash storage device in an embodiment. Such as figure 1 As shown, the method for writing data of the flash memory storage device includes the following steps:
[0040] Step 102, receiving a data write operation command sent to the flash storage device, the data write operation command includes the data to be written and the logical address of the data to be written.
[0041] Specifically, the host sends a data write operation command to the flash memory storage device, and the flash memory storage device receives the data write ...
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The invention relates to a method and system for writing data in a flash storage device. The method includes the following steps: receiving a data write operation command issued to a flash storage device, the data write operation command including data to be written and a logical address of the data to be written; according to the data write operation command, the The data to be written is stored in one or more data cache areas; the data in the cache areas is written into the storage unit of the flash storage device pointed to by the logical address; ECC verification is performed on the data; when the number of error bytes verified exceeds the ECC threshold, the data in the data cache area is rewritten, and ECC verification is performed on the rewritten data until the number of error bytes verified is less than ECC threshold exceeded. The data written into the storage unit is checked multiple times until the data written into the storage unit is correct, which ensures the accuracy of data access and improves the stability and reliability of written data.
Description
technical field [0001] The invention relates to a storage device, in particular to a method and system for writing data in a flash memory storage device. Background technique [0002] When traditional flash storage devices are used for data storage and reading, they undergo repeated erasing and writing operations, that is, the process of charging and discharging, their lifespan will be shortened, and their performance will decrease, which may cause Data access errors are prone to occur when the flash memory storage device is continued to be used subsequently. Contents of the invention [0003] Based on this, it is necessary to provide a method for writing data in a flash storage device that can ensure accurate data access in view of the problem that traditional flash storage devices are prone to data access errors due to repeated erasing and writing operations. [0004] In addition, it is also necessary to provide a data writing system for flash storage devices that can e...
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IPC IPC(8): G06F3/06G06F11/10G11C29/42G06F12/0877
Inventor 梁小庆李志雄
Owner SHENZHEN NETCOM ELECTRONICS CO LTD