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Algorithm for reliably protecting NVRAM data content from being lost

A data content and reliable technology, applied in the direction of protecting storage content from loss, etc., can solve problems such as inability to protect data

Inactive Publication Date: 2020-10-27
嘉兴行适安车联网信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-volatile random access memory (NVRAM) appeared in order to avoid data loss that may be caused by sudden power failure of the computer. Protect data in the event of a crash

Method used

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  • Algorithm for reliably protecting NVRAM data content from being lost
  • Algorithm for reliably protecting NVRAM data content from being lost

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Embodiment Construction

[0034] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0035] see attached figure 1 , figure 1 It is the reading flowchart of the algorithm for reliably protecting NVRAM data content from loss of the present invention, figure 2 It is a writing flow chart of the algorithm for reliably protecting NVRAM data content from loss in the present invention.

[0036] In the preferred embodiment of the present invention, those skilled in the art should note that the NVRAM, ITEM, etc. involved in the present inventio...

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Abstract

The invention discloses an algorithm for reliably protecting data content of an NVRAM from being lost. The algorithm comprises the following steps: S1, the NVRAM divides an original data block into aPartA part and a PartB part; S2, the SEQ _ A is used for judging whether the PartA is the latest data or not, and the SEQ _ B is used for judging whether the PartB is the latest data or not; S3, the NVRAM reads the data block; and S4, the NVRAM writes in the data block. According to the algorithm for reliably protecting the NVRAM data content from being lost disclosed by the invention, the reliability of the NVRAM data content is improved, and the write-in service life of a memory can be prolonged by dividing the NVRAM data content into two parts of Part.

Description

technical field [0001] The invention belongs to the technical field of NVRAM data reliability, and in particular relates to an algorithm for reliably protecting NVRAM data content from loss. Background technique [0002] NVRAM (Non-Volatile Random Access Memory, non-volatile random access memory) refers to a random access memory whose stored data is not lost after power off. NVRAM in the vehicle system is generally used to store data such as SPSN (Sysom Product Serial Number), WIFI MAC, and BT MAC. When the data in NVRAM needs to be updated, if there is an abnormal power failure, etc., the saved data block may be incomplete, which will cause abnormal operation of the vehicle system. [0003] With the development of current computing equipment, the computing speed continues to increase, and the memory capacity continues to increase, which brings higher and higher requirements for data reliability. Non-volatile random access memory (NVRAM) appears to avoid data loss that may...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/16
CPCG06F12/16
Inventor 严张伟
Owner 嘉兴行适安车联网信息科技有限公司
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