CN102508683A - Embedded system starting method capable of implementing high-capacity storage - Google Patents
Embedded system starting method capable of implementing high-capacity storage Download PDFInfo
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- CN102508683A CN102508683A CN2011103568573A CN201110356857A CN102508683A CN 102508683 A CN102508683 A CN 102508683A CN 2011103568573 A CN2011103568573 A CN 2011103568573A CN 201110356857 A CN201110356857 A CN 201110356857A CN 102508683 A CN102508683 A CN 102508683A
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Abstract
The invention discloses an embedded system starting method capable of implementing high-capacity storage, which includes: configuring a first storage medium which is safe and stable and a second storage medium which is high in capacity and low in cost to an embedded system; and using the first storing medium for storing starting codes of the system and using the second storage medium for storing application software of the system. The embedded system starting method capable of implementing high-capacity storage solves the problems of cost, potential safety hazards and low storage medium access speed of storing the starting codes and application codes in one storage medium, and is simple, practical, lower in cost and widely applicable to starting storage schemes of embedded systems.
Description
Technical field
The present invention relates to memory technology, relate in particular to the method for the embedded system startup that realizes the high capacity storage.
Background technology
Embedded system startup storage scheme commonly used is that start-up code and application software all are stored in a kind of storage medium at present; Medium or price that this startup storage scheme is selected for use are more expensive; Hidden danger on the safety and stability is arranged, or can influence the performance of total system more slowly because of the access speed of storage medium.It is very unfavorable that this commercialization to field of embedded technology software is produced.
In traditional embedded system was used, start-up code and application software can leave in a kind of storage medium usually, and be as shown in Figure 1.When the more needs of storage space that take more greatly when software were selected jumbo storage medium for use, if above-mentioned two kinds of contents are left on the fast storage medium of safety and stability and access speed, it was a lot of to make cost of products improve.If above-mentioned two kinds of contents are left on the storage medium that capacity is big, cheap and access speed is fast, though cost of products can be very not high, existing hidden danger aspect the safety and stability of system start-up, might cause total system to start not.If above-mentioned two kinds of contents are left on the storage medium of cheap and safety and stability, when access storage media, then can influence the performance of total system slowly owing to speed.
For example, start-up code and application software are all left on the Nor flash, start-up code starts from Nor flash.Like this, when application software takies jumbo Nor flash more greatly, can make that the embedded system cost of products is higher.
For example, start-up code and application software are all left on the Nand flash.Because nand flash in use is easy to generate bad piece, so start-up code is left among the nand flash and can produce hidden danger to the security and stability of system start-up.
For example, start-up code and application software are all left on the serial flash.Because application software speed when visit serial flash is slower, so can influence the performance of total system.
Therefore; A kind of method that realizes that large-capacity storage media starts need be provided; Can overcome the existing problem of above-mentioned various prior art schemes; Not increasing under the prerequisite of embedded system cost of products, can guarantee the security and stability of system start-up, can guarantee that the performance of total system can not be affected simultaneously.
Summary of the invention
Technical matters to be solved by this invention provides a kind of method that realizes the embedded system startup of high capacity storage, can under the prerequisite that can not increase cost of products, guarantee the security and stability of system start-up.
In order to solve the problems of the technologies described above, the invention provides a kind of method that realizes the embedded system startup of high capacity storage, comprising:
Dispose first kind of storage medium and second kind of big and cheap storage medium of capacity of safety and stability respectively for embedded system;
With the start-up code of first kind of storage medium stores system, with the application software of second kind of storage medium stores system.
Further, first kind of storage medium still is cheap storage medium.
Further,
First kind of storage medium is serial flash or radium-shine dish, and second kind of storage medium is nand flash or safe digital card.
Further, the start-up code with first kind of storage medium stores system specifically comprises:
The start-up mode that configuration-system is selected for use is first kind of storage medium start-up mode, and in start-up code the driver of integrated second kind of storage medium;
Start-up code is stored on first kind of storage medium.
Further, this method also comprises:
In system start-up operation start-up code process, call the driver of second kind of integrated in this start-up code storage medium;
Read and be stored in second kind of application software on the storage medium, and guiding starts this application software.
The present invention is left the start-up code of embedded system and application software respectively on the big and cheap another kind of storage medium of safety and stability and cheap storage medium and capacity, solves thus start-up code and application code are stored in cost problem and security hidden trouble and the slower problem of access storage media access speed on a kind of storage medium.Method of the present invention is simple and practical, and cost is lower, can be widely used in the startup storage scheme of embedded system.
Description of drawings
Fig. 1 is the synoptic diagram of the embedded system startup method of existing realization high capacity storage;
Fig. 2 is the synoptic diagram of the method embodiment that starts of the embedded system of realization high capacity of the present invention storage.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment technical scheme of the present invention is at length set forth.Should be appreciated that the embodiment that below gives an example only is used for explanation and explains the present invention, and does not constitute the restriction to technical scheme of the present invention.
As shown in Figure 2, represented the method embodiment that the embedded system of realization high capacity of the present invention storage starts, comprising:
Dispose first kind of storage medium and second kind of big and cheap storage medium of capacity of safety and stability respectively for embedded system;
With the start-up code of first kind of storage medium stores system, with the application software of second kind of storage medium stores system.
In said method embodiment, first kind of storage medium also is the cheap storage medium that gets.
In said method embodiment, first kind of storage medium comprises serial flash (serial flash) or radium-shine dish (Small-sized C D), and second kind of storage medium comprises nand flash or safe digital card (SD Card).
In said method embodiment, the start-up code with first kind of storage medium stores system specifically comprises:
The start-up mode selected for use of configuration embedded system is first kind of storage medium start-up mode, and in start-up code the driver of integrated second kind of storage medium;
Start-up code is stored on first kind of storage medium.
Said method embodiment also comprises:
In system start-up operation start-up code process, call the driver of second kind of integrated in start-up code storage medium;
Read and be stored in second kind of application software on the storage medium, and guiding starts this application software.
To those skilled in the art; After having understood content of the present invention and principle; Can be under the situation that does not deviate from the principle and scope of the present invention; Carry out various corrections and change on form and the details according to the method for the invention, but these are based on correction of the present invention with change still within claim protection domain of the present invention.
Claims (5)
1. method that the embedded system that realizes high capacity storage starts comprises:
Dispose first kind of storage medium and second kind of big and cheap storage medium of capacity of safety and stability respectively for said embedded system;
With the start-up code of first kind of said system of storage medium stores, with the application software of second kind of said system of storage medium stores.
2. according to the described method of claim 1, it is characterized in that first kind of storage medium still is cheap storage medium.
3. according to the described method of claim 1, it is characterized in that,
First kind of storage medium is serial flash or radium-shine dish, and second kind of storage medium is nand flash or safe digital card.
4. according to each described method of claim 1 to 3, it is characterized in that the start-up code with first kind of said system of storage medium stores specifically comprises:
Disposing the start-up mode that said system selects for use is first kind of storage medium start-up mode, and in said start-up code the driver of integrated second kind of storage medium;
Said start-up code is stored on first kind of storage medium.
5. according to the described method of claim 4, it is characterized in that, also comprise:
Move in the said start-up code process in said system start-up, call the driver of second kind of integrated in this start-up code storage medium;
Read the said application software that is stored on second kind of storage medium, and guiding starts said application software.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103568573A CN102508683A (en) | 2011-11-11 | 2011-11-11 | Embedded system starting method capable of implementing high-capacity storage |
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| CN2011103568573A CN102508683A (en) | 2011-11-11 | 2011-11-11 | Embedded system starting method capable of implementing high-capacity storage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105893051A (en) * | 2016-04-12 | 2016-08-24 | 福州瑞芯微电子股份有限公司 | System firmware storage method and device of car driving recorder |
| WO2021238407A1 (en) * | 2020-05-29 | 2021-12-02 | Oppo广东移动通信有限公司 | Chip and electronic device |
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| CN1508710A (en) * | 2002-12-19 | 2004-06-30 | 联想(北京)有限公司 | Embedded application system and application method thereof |
| US20050283598A1 (en) * | 2004-06-22 | 2005-12-22 | International Business Machines Corporation | Method and system for loading processor boot code from serial flash memory |
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| WO2002013003A2 (en) * | 2000-08-04 | 2002-02-14 | Marconi Communications, Inc. | System and method for implementing a self-activating embedded application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893051A (en) * | 2016-04-12 | 2016-08-24 | 福州瑞芯微电子股份有限公司 | System firmware storage method and device of car driving recorder |
| CN105893051B (en) * | 2016-04-12 | 2019-04-30 | 福州瑞芯微电子股份有限公司 | A kind of the system firmware storage method and device of automobile data recorder |
| WO2021238407A1 (en) * | 2020-05-29 | 2021-12-02 | Oppo广东移动通信有限公司 | Chip and electronic device |
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Application publication date: 20120620 |