CN106250262A - A kind of based on double-mirror prevent SD from using during the method surprisingly distorted of flash - Google Patents
A kind of based on double-mirror prevent SD from using during the method surprisingly distorted of flash Download PDFInfo
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- CN106250262A CN106250262A CN201610648536.3A CN201610648536A CN106250262A CN 106250262 A CN106250262 A CN 106250262A CN 201610648536 A CN201610648536 A CN 201610648536A CN 106250262 A CN106250262 A CN 106250262A
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- Prior art keywords
- mirror
- subregion
- parameter region
- flash
- verifying
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
- G06F11/1068—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices in sector programmable memories, e.g. flash disk
Abstract
The invention discloses a kind of based on double-mirror prevent SD from using during the method surprisingly distorted of flash, bootloader subregion is included in described flash, first parameter region of mirror configuration and the second parameter region, and the first system subregion of mirror configuration and second system subregion, wherein, first parameter region correspondence the first system subregion constitutes the first mirror-image system, and the second parameter region correspondence second system subregion constitutes the second mirror-image system；First mirror-image system start time to it in data verify, if verifying successfully, the most normally starting system, if verifying unsuccessfully, then changing the second mirror-image system and starting.The present invention is ingenious utilizes double-mirror system to be tampered problem to what the flash unstable properties solving SD caused, as long as the data in bootloader subregion are normal, even if data are surprisingly distorted in parameter region or system partitioning, system can also be started by the reading of another parameter region or system partitioning, not interfere with the normal use of SD equipment.
Description
Technical field
The present invention relates to technical field of intelligent equipment, specifically, relate to a kind of based on double-mirror prevent SD from using
During the method surprisingly distorted of flash.
Background technology
The most a lot of companies attempt smart machine (SD, Smart Device) field the most one after another, and SD functions of the equipments are increasingly
Many, hardware integration degree is more and more higher.But it is because some cost control or design is the most perfect, and some are difficult to
The reason avoided (as having a power failure suddenly) result in flash(flash memory during SD uses) upper firmware surprisingly distorted, SD equipment without
Method normally works.
SD in use, due to reasons such as the hardware device unexpected power-off of use aging, normal, result in flash
The firmware deposited surprisingly is distorted, and makes SD normally to use.Shown in Fig. 1, it is conventional flash layout, concrete SD equipment
Manufacturer may be slightly different.First subregion must be Bootloader subregion, guides system, simultaneity factor mirror
As subregion the most necessarily has, it is achieved the function that equipment is main.Depending on the demand according to each equipment of other regions.
Due to some cause specific (such as unexpected power-off), the image file in flash is tampered, and causes SD normally to open
Dynamic.Run into this situation user to select goods return and replacement or certainly accept one's bad luck.The situation that Flash is surprisingly distorted causes goods return and replacement
The most universal in SD device fabrication company.If able to effectively reduce the generation that flash is surprisingly distorted, can effectively reduce
The loss of company.From source, reduce flash surprisingly distorted, the effort of Ge great flash manufacturer go correct, but but
Cannot avoid.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the present invention provide a kind of based on double-mirror prevent SD use during
The method that flash is surprisingly distorted.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of based on double-mirror prevent SD from using during the method surprisingly distorted of flash, include in described flash
Bootloader subregion, the first parameter region of mirror configuration and the second parameter region, and the first system subregion of mirror configuration and
Second system subregion, wherein, the first parameter region correspondence the first system subregion constitutes the first mirror-image system, the second parameter region correspondence
Two system subregion constitutes the second mirror-image system；The method comprises the steps:
(S1) SD device power, by the bootloader bootstrap in bootloader subregion, meanwhile, configures the first parameter region
It is acquiescence startup system with the first system subregion；
(S2) in reading the first parameter region and the first system subregion, data carry out system start-up；
(S3) when system start-up, respectively the data in the first parameter region and the first system subregion are verified, and deposit in advance
The original checksums value of storage compares, if verifying successfully, the most normally starting system, if verifying unsuccessfully, then carrying out next step；
(S4) in reading the second parameter region and second system subregion, data carry out system start-up；
(S5) when system start-up, respectively the data in the second parameter region and second system subregion are verified, and deposit in advance
The original checksums value of storage compares, if verifying successfully, the most normally starting system, if verifying unsuccessfully, then entering the urgent of setting
Upgrade mode.
Further, after system normally starts, set, every one, the mirror-image system that time upgrading is currently used.
Further, after system normally starts, to whether verifying before starting unsuccessfully detect, if there is verification
Failure, then repaired verifying failed mirror-image system by currently used mirror-image system.
Specifically, the described concrete side failed mirror-image system of verification repaired by currently used mirror-image system
Method is the content of currently used mirror-image system to be replicated and covered the content of the failed mirror-image system of described verification.
Preferably, carrying out described in verifying used check value is MD5 code.
Compared with prior art, the method have the advantages that
(1) present invention is ingenious utilizes double-mirror system to be tampered problem, effectively to what the flash unstable properties solving SD caused
Improve SD equipment in use because having a power failure, flash parameter is erasable the most frequent etc. cause being tampered and cannot start
Situation, as long as the data in bootloader subregion are normal, even if data are surprisingly distorted, also in parameter region or system partitioning
System can be started by the reading of another parameter region or system partitioning, not interfere with the normal use of SD equipment, and this
The ingenious novelty of inventive concept, it is easy to accomplish, application is good, and reliability is high, is with a wide range of applications, and is suitable for popularization and application.
Accompanying drawing explanation
Fig. 1 is the zoning's schematic diagram in prior art in flash.
Fig. 2 is the schematic flow sheet of the present invention.
Fig. 3 is the flash subarea schematic layout pattern in the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings, and embodiments of the present invention include but not limited to
The following example.
Embodiment
As shown in Figure 2 to Figure 3, the method that during based on double-mirror should preventing SD from using, flash is surprisingly distorted, institute
Bootloader subregion is included, the first parameter region of mirror configuration and the second parameter region, and the of mirror configuration in stating flash
One system partitioning and second system subregion, wherein, the first parameter region correspondence the first system subregion constitutes the first mirror-image system, and second
Parameter region correspondence second system subregion constitutes the second mirror-image system；Typical case's application of the technical program be frequently using, function
In less SD equipment, this kind of SD equipment, due to a large amount of erasable parameter regions, easily causes bit position in flash when system power failure
Redirect, cause flash to be tampered.Think that factor also easily causes firmware in flash and damages, such as SD device systems profit more simultaneously
Upgrading with wireless signal, due to jitter, update time is long, causes the flash that user dislikes and power-off causes to wipe
Writing half causes equipment to use.
The method comprises the steps:
(S1) SD device power, by the bootloader bootstrap in bootloader subregion, meanwhile, configures the first parameter region
It is acquiescence startup system with the first system subregion；
(S2) in reading the first parameter region and the first system subregion, data carry out system start-up；
(S3) when system start-up, respectively the data in the first parameter region and the first system subregion are verified, and deposit in advance
The original checksums value of storage compares, if verifying successfully, the most normally starting system, if verifying unsuccessfully, then carrying out next step；
(S4) in reading the second parameter region and second system subregion, data carry out system start-up；
(S5) when system start-up, respectively the data in the second parameter region and second system subregion are verified, and deposit in advance
The original checksums value of storage compares, if verifying successfully, the most normally starting system, if verifying unsuccessfully, then entering the urgent of setting
Upgrade mode.In emergency upgrade pattern, by the form being externally introduced data, the system data damaged can be repaired.
Further, after system normally starts, set, every one, the mirror-image system that time upgrading is currently used.
Further, after system normally starts, to whether verifying before starting unsuccessfully detect, if there is verification
Failure, then repaired verifying failed mirror-image system by currently used mirror-image system.
Specifically, the described concrete side failed mirror-image system of verification repaired by currently used mirror-image system
Method is the content of currently used mirror-image system to be replicated and covered the content of the failed mirror-image system of described verification.
Preferably, carrying out described in verifying used check value is MD5 code.
The problem that can be solved the various system data errors of individual system by this programme, the most in actual applications,
After a mirror-image system upgrading, SD equipment just saves the system of two versions, if user is to the system after upgrading not
Satisfied, it is also possible to return back in the oldest version use by corresponding means, be very easy to Consumer's Experience.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as using
The design principle of the present invention, and carry out non-creativeness work on this basis and the change made, all should belong to the present invention's
Within protection domain.
Claims (5)
1. one kind based on double-mirror prevent SD from using during the method surprisingly distorted of flash, it is characterised in that described
Bootloader subregion is included, the first parameter region of mirror configuration and the second parameter region, and the first of mirror configuration in flash
System partitioning and second system subregion, wherein, the first parameter region correspondence the first system subregion constitutes the first mirror-image system, the second ginseng
Number district correspondence second system subregion constitutes the second mirror-image system；The method comprises the steps:
(S1) SD device power, by the bootloader bootstrap in bootloader subregion, meanwhile, configures the first parameter region
It is acquiescence startup system with the first system subregion；
(S2) in reading the first parameter region and the first system subregion, data carry out system start-up；
(S3) when system start-up, respectively the data in the first parameter region and the first system subregion are verified, and deposit in advance
The original checksums value of storage compares, if verifying successfully, the most normally starting system, if verifying unsuccessfully, then carrying out next step；
(S4) in reading the second parameter region and second system subregion, data carry out system start-up；
(S5) when system start-up, respectively the data in the second parameter region and second system subregion are verified, and deposit in advance
The original checksums value of storage compares, if verifying successfully, the most normally starting system, if verifying unsuccessfully, then entering the urgent of setting
Upgrade mode.
The most according to claim 1 a kind of based on double-mirror prevent SD from using during the side surprisingly distorted of flash
Method, it is characterised in that after system normally starts, sets, every one, the mirror-image system that time upgrading is currently used.
The most according to claim 2 a kind of based on double-mirror prevent SD from using during the side surprisingly distorted of flash
Whether method, it is characterised in that after system normally starts, to verifying before starting unsuccessfully detecting, verifying unsuccessfully if existing,
Then repaired verifying failed mirror-image system by currently used mirror-image system.
The most according to claim 3 a kind of based on double-mirror prevent SD from using during the side surprisingly distorted of flash
Method, it is characterised in that the described concrete side failed mirror-image system of verification repaired by currently used mirror-image system
Method is the content of currently used mirror-image system to be replicated and covered the content of the failed mirror-image system of described verification.
The most according to claim 4 a kind of based on double-mirror prevent SD from using during the side surprisingly distorted of flash
Method, it is characterised in that described in carry out verifying used check value be MD5 code.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610648536.3A CN106250262A (en) | 2016-08-10 | 2016-08-10 | A kind of based on double-mirror prevent SD from using during the method surprisingly distorted of flash |
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| CN201610648536.3A CN106250262A (en) | 2016-08-10 | 2016-08-10 | A kind of based on double-mirror prevent SD from using during the method surprisingly distorted of flash |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631626A (en) * | 2020-12-02 | 2021-04-09 | 广东中兴新支点技术有限公司 | System upgrading method and device based on dual systems and storage medium |
| CN114138343A (en) * | 2020-09-04 | 2022-03-04 | 青岛海信移动通信技术股份有限公司 | Terminal and terminal starting method |
| CN115328563A (en) * | 2022-10-09 | 2022-11-11 | 荣耀终端有限公司 | System starting method and electronic equipment |
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| CN101763279A (en) * | 2010-01-15 | 2010-06-30 | 上海维宏电子科技有限公司 | BootLoader architectural design method |
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| CN112631626A (en) * | 2020-12-02 | 2021-04-09 | 广东中兴新支点技术有限公司 | System upgrading method and device based on dual systems and storage medium |
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| CN115328563A (en) * | 2022-10-09 | 2022-11-11 | 荣耀终端有限公司 | System starting method and electronic equipment |
| CN115328563B (en) * | 2022-10-09 | 2023-04-14 | 荣耀终端有限公司 | System starting method and electronic equipment |
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Application publication date: 20161221 |