CN1184563C - Operation system starting method of electronic book or on-palm computer - Google Patents
Operation system starting method of electronic book or on-palm computer Download PDFInfo
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- CN1184563C CN1184563C CNB031371515A CN03137151A CN1184563C CN 1184563 C CN1184563 C CN 1184563C CN B031371515 A CNB031371515 A CN B031371515A CN 03137151 A CN03137151 A CN 03137151A CN 1184563 C CN1184563 C CN 1184563C
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- operating system
- flash memory
- sdram
- palm
- quick flash
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000006837 decompression Effects 0.000 claims description 2
- 230000010076 replication Effects 0.000 claims description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The present invention relates to a starting method for an operating system of an electronic book or a palm computer, which comprises the steps: an operating system is stored by the NANDFLASH of an electronic book or a palm computer; NORFLASH is write in the operating system for starting codes; codes are started to complete the initialization of a device; the content of the operating system in the NANDFLASH is replicated to the specified position of SDRAM; the operating system is started from the SDRAM. The operating system of the present invention can be compressed for saving and be upgraded at any time; the present invention reduces the cost of a device, and the operating system can be upgraded at any time; when system power supply is exhausted, the operating system can not lose; the starting speed of the operating system meets requirements. The present invention can be widely used for the field of electronic books or palm computers.
Description
Technical field:
The present invention relates to field of computer technology, relate in particular to the os starting method of a kind of e-book (EBOOK) or palm PC (PDA).
Background technology:
EBOOK in the market and PDA great majority adopt operating system are kept at NORFLASH Memory (or not quick flash memory), among ROM (Read-only memory ROM (read-only memory)) or the SDRAM (Synchronous Dynamic RAM Synchronous Dynamic Random Access Memory).Adopt NORFLASH to preserve the equipment of operating system and since the operating system size most at several MB between tens MB, need very high cost.Adopt ROM to preserve the equipment of operating system, though cost is low, operating system has just write and can not change, and the user can not upgrade.Adopt SDRAM to preserve the equipment of operating system, though cost is low, operating system is scalable, in case system power supply exhausts, operating system will be lost, and needs down operation system again.
Summary of the invention:
Target of the present invention provides a kind of equipment cost, operating system are difficult for losing, toggle speed meets the demands the e-book or os starting method of palm PC of reducing.
The present invention also aims to make operating system to upgrade at any time.
Os starting method of the present invention, by NANDFLASH Memory (with not quick flash memory) the preservation operating system of e-book or palm PC, NORFLASH write operation system start-up code, its step comprises:
1) NORFLASH operation start-up code is finished device initialize;
2) the operating system content replication that NANDFALSH is preserved is to the SDRAM assigned address;
3) program is jumped to the SDRAM assigned address, start the operating system by SDRAM.
Go back the writing system ROMPaq among the described NORFLASH, when system upgrade, from NORFLASH, move upgrade code, link to each other with PC, new operating system is copied among the NANDFLASH upgrading of complete operation system by input equipments such as USB.
For saving the space, NANDFLASH preserves the operating system after the compression, and NORFLASH comprises gunzip, copies to the SDRAM assigned address after the operating system content decompression with the NANDFALSH preservation.
Because the price of NANDFLASH can be compressed operating system again well below the NORFLASH price, further reduces the capacity of the required memory device of operating system.The NORFLASH capacity that adopts is very little, and the SDRAM price is very low, so can reduce equipment cost.
NANDFLASH can carry out erasable at any time, and power supply when exhausting data do not lose, can guarantee operating system be difficult for lose, and can upgrade at any time.
Data based service time of difference with in the operating system copies to respectively among the SDRAM, reduces one time doubling time, and the SDDAM travelling speed is far faster than NORFLASH, so total boot time still can meet the demands.
The present invention:
1, reduce cost more than 50%, and the operating system requisite space is big more, cost reduces many more;
2, operating system speed is higher than in NORFLASH or ROM and moves;
3, the user can upgrade to operating system, and can upgrade again as upgrading is unsuccessful, makes ROMPaq safer.
Description of drawings:
Os starting process flow diagram of the present invention
Embodiment:
The present invention packs operating system among the NANDFLASH of EBOOK, when the space is nervous, can compress.With NANDFLASH as the storage device storage operating system, but because due to the NANDFLASH device property, operating system can not directly be moved at NANDFLASH, and device start must begin from NORFLASH or ROM, operating system must be at NORFLASH, moves among ROM or the SDRAM.So a bit of os starting code of in the low capacity NORFLASH of one tens KB, packing into and writing, this start-up code initialization CPU base register, SDRAM and NANDFLASH; Duplicate among the NANDFLASH operating system content to the SDRAM assigned address; Then program is jumped to the SDRAM assigned address, the operating system that from SDRAM, brings into operation (compress as operating system, operating system is decompressed reinstalls SDRAM earlier).
NORFLASH comprises the system upgrade program, and during system upgrade, the operation upgrade code links to each other with PC by input equipments such as USB from NORFLASH, and new operating system is copied among the NANDFLASH.If upgrading failure in this process owing to do not change operation upgrade code upgrading operation system from NORFLASH again, makes ROMPaq safer.
Claims (4)
1, the os starting method of a kind of e-book or palm PC, by e-book or palm PC preserve operating system with not quick flash memory, or not quick flash memory write operation system start-up code, its step comprises:
1) by or not quick flash memory operation start-up code, finish device initialize;
2) will arrive the SDRAM assigned address with the operating system content replication that not quick flash memory is preserved;
3) program is jumped to the SDRAM assigned address, start the operating system by SDRAM.
2, the os starting method of e-book as claimed in claim 1 or palm PC, it is characterized in that described device initialize comprise CPU base register, SDRAM and with the initialization of not quick flash memory.
3, the os starting method of e-book as claimed in claim 1 or palm PC is characterized in that writing system ROMPaq in described or not quick flash memory, when system upgrade, with new operating system copy to not quick flash memory in.
4, as the os starting method of described e-book of one of claim 1-3 or palm PC, it is characterized in that preserving operating system after the compression with not quick flash memory, or not quick flash memory comprises gunzip, copies to the SDRAM assigned address after the operating system content decompression that will preserve with not quick flash memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031371515A CN1184563C (en) | 2003-06-06 | 2003-06-06 | Operation system starting method of electronic book or on-palm computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031371515A CN1184563C (en) | 2003-06-06 | 2003-06-06 | Operation system starting method of electronic book or on-palm computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1460929A CN1460929A (en) | 2003-12-10 |
| CN1184563C true CN1184563C (en) | 2005-01-12 |
Family
ID=29591317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031371515A Expired - Fee Related CN1184563C (en) | 2003-06-06 | 2003-06-06 | Operation system starting method of electronic book or on-palm computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1184563C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454248C (en) * | 2005-07-29 | 2009-01-21 | 联想(北京)有限公司 | Method for regulating starting speed of portable data processing system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371898C (en) * | 2006-03-28 | 2008-02-27 | 华为技术有限公司 | Automatic loading method for movable terminal software |
| CN100377086C (en) * | 2006-03-31 | 2008-03-26 | 浙江大学 | Method for realizing operating procedure directly from file system in embedded system |
| CN1946210B (en) * | 2006-10-17 | 2010-05-12 | 青岛海信移动通信技术股份有限公司 | TD-SCDMA mobile phone for quick open, start and display and its realizing method |
| TWI417789B (en) | 2009-07-07 | 2013-12-01 | Via Tech Inc | Computer system and booting method |
| CN107025073B (en) * | 2017-04-19 | 2019-12-10 | 浪潮集团有限公司 | NAND FLASH array Mapping information storage method |
-
2003
- 2003-06-06 CN CNB031371515A patent/CN1184563C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454248C (en) * | 2005-07-29 | 2009-01-21 | 联想(北京)有限公司 | Method for regulating starting speed of portable data processing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1460929A (en) | 2003-12-10 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Fangzheng Information System Co., Ltd. Assignor: Beida Fangzheng Science & Technology Computer System Co., Ltd., Shanghai Contract fulfillment period: 2008.10.21 to 2013.10.21 Contract record no.: 2008990001262 Denomination of invention: Operation system starting method of electronic book or on-palm computer Granted publication date: 20050112 License type: Exclusive license Record date: 20081121 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.21 TO 2013.10.21; CHANGE OF CONTRACT Name of requester: SHENZHEN CITY FANGZHENG INFORMATION SYSTEM CO., LT Effective date: 20081121 |
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| ASS | Succession or assignment of patent right |
Owner name: ACER COMPUTER (CHINA) CO., LTD. Free format text: FORMER OWNER: BEIDA FANGZHENG SCIENCE + TECHNOLOGY COMPUTER SYSTEM CO., LTD., SHANGHAI Effective date: 20101029 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 102200 ROOM 204, SECONDARY BUILDING, FANGZHENG BUILDING, NO.9, SHANGDI STREET 5, HAIDIAN DISTRICT, BEIJING TO: 200001 3/F, NO.168, XIZANG MIDDLE ROAD, HUANGPU DISTRICT, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20101029 Address after: 3, No. 168 middle Tibet Road, No. 200001, Shanghai, Huangpu District Patentee after: Acer Computer (Shanghai) Co., Ltd. Address before: 102200, Room 204, building nine, fangzheng building, five street, Haidian, Beijing Patentee before: Beida Fangzheng Science & Technology Computer System Co., Ltd., Shanghai |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050112 Termination date: 20210606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |