Method and related apparatus for detecting whether flash data is corrupted or not
A data and flash memory technology, applied in the field of detecting whether flash memory data is damaged, it can solve problems such as system failure to read files, damage to data stored in flash memory, affecting system operation, etc.
Inactive Publication Date: 2018-05-18
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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Problems solved by technology
[0004] But the flash memory is prone to bad blocks after being used for a period of time
And as the time of use gradually extends, the data stored in the flash memory will be damaged
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[0037] The core of the present invention is to provide a method for detecting whether flash memory data is damaged. Flash memory is prone to bad blocks after being used for a period of time. And as the time of use is gradually extended, the flash memory may have leakage and other similar situations, resulting in damage to the data stored in the flash memory. When the flash memory data is damaged, when the firmware in the flash memory communicates with the host, the system will fail to read the file, which will affect the operation of the entire system.
[0038] However, a method for detecting whether flash memory data is damaged provided by the present invention can calculate the identification information of the data in the read-only partition in the flash memory, and compare the identification information with the original identification information previously stored, thereby obtaining Whether the data of the read-only partition in the current flash memory is complete. Tha...
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The invention discloses a method for detecting whether flash data is corrupted or not. The method comprises the steps of scanning data of a read-only partition in a flash; calculating identifier information of the data; and when the identifier information is inconsistent with pre-stored original identifier information, determining that the data is corrupted. According to the detection method disclosed by the invention, by calculating the identifier information of the data of the read-only partition in the flash and comparing the identifier information with the originally stored original identifier information, whether the data of the read-only partition in the current flash is complete or not is obtained; namely, when the identifier information is inconsistent with the original identifierinformation, it is determined that the data is corrupted; and through the method, whether the data stored in the flash is corrupted or not can be detected in advance. The invention furthermore provides a related apparatus, which also has the abovementioned beneficial effects.
Description
technical field [0001] The invention relates to the field of data detection, in particular to a method and a related device for detecting whether flash memory data is damaged. Background technique [0002] With the continuous advancement of science and technology in recent years, the storage medium of flash memory is more and more widely used in people's daily life. [0003] With the wide application and development of storage media such as flash memory, the access speed of flash memory is getting faster and faster, and the storage capacity is also increasing. At present, the storage capacity of flash memory has grown to tens of terabytes. [0004] But flash memory is prone to bad blocks after being used for a period of time. And as the time of use is gradually extended, the data stored in the flash memory will be damaged. When the flash memory data is damaged, when the firmware in the flash memory communicates with the host, the system will fail to read the file, which wi...
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IPC IPC(8): G06F3/06
CPCG06F3/0619G06F3/0679
Inventor 闫晓峰
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD