CN100386709C - Dragon core-1 CPU network computer main board system and reset method - Google Patents
Dragon core-1 CPU network computer main board system and reset method Download PDFInfo
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- CN100386709C CN100386709C CNB03140698XA CN03140698A CN100386709C CN 100386709 C CN100386709 C CN 100386709C CN B03140698X A CNB03140698X A CN B03140698XA CN 03140698 A CN03140698 A CN 03140698A CN 100386709 C CN100386709 C CN 100386709C
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Abstract
The present invention relates to a network computer, particularly to a dragon core-1 CPU network computer main board system and a resetting method. The system comprises a dragon core-1 CPU, a north bridge, a south bridge and a basic input and output system. The resetting method comprises that a reset button is started, a circuit is generated by resetting, and a reset signal is generated and transmitted to the south bridge for resetting the south bridge. A new reset signal is generated from the south bridge, and is transmitted to the north bridge for resetting the north bridge; after the north bridge is reset, a reset signal is generated and transmitted to the dragon core 1-CPU for resetting the dragon core 1-CPU. The present invention substantially uses the prior art, and also creatively adopts a plurality of new techniques and modern ideas. The system has very high practicability.
Description
Technical field
The present invention relates to network computer, particularly relate to the repositioning method of the network computer main board system of a kind of Godson-1CPU.
Technical background
Network computer is as an important application branch of technical development of computer, in computer networking technology growing today, because it has very high security, be convenient to management, software upgrading and the simple and lower-cost advantage of maintenance, the application prospect at aspects such as Web education, E-Government, ecommerce, electronic farmings more and more is subject to people's attention.
This notion of network computer comes across nineteen nineties, starting point at that time is some equipment (such as hard disk, CD-ROM drive, floppy disk etc.) in the cutting personal computer as far as possible, reduce the cost of computing machine, at personal computer cost at that time than higher period, this thinking has certain meaning, but along with the raising day by day of the PC ratio of performance to price, in the price of PC very low today, from the angle that reduces cost, the advantage of network computer is not too obvious.Growing along with computer network on the contrary, the becoming increasingly conspicuous of safety problem, this moment network computer as safe as a house, be convenient to management, the simple advantage of software upgrading just appears suddenly out.
Have independent intellectual property right, have this consideration of network computer of extremely strong security in line with exploitation, we have designed and developed the network computer mainboard based on Godson-1CPU with own characteristic.
Summary of the invention
The object of the present invention is to provide the repositioning method of the network computer main board system of a kind of Godson-1CPU.
Network computer mainboard development plan based on Godson-1
Because network computer has very high security of system, uses simple, convenient management, and with low cost, is more and more used at aspects such as Web education and E-Government.Inst. of Computing Techn. Academia Sinica digitizing chamber is under the subsidy of country's " 15 " 863 Program main project, Chinese Academy of Sciences's major project, the calculating problem of innovating, research and developed have autonomous property right, stable performance, safe, cheap, can be widely used in network computer (NC)---sky, Divine Land network of vein network computing machine that the multiple industrial application of information technology of China is built.The present invention has specifically adopted following new technology and thinking:
1, (inventing by calculating, is the universal cpu of MIPS architecture, has applied for national patent, application number: 01135045.8), have high security to have adopted homemade Godson-1CPU;
2, the employing serial ports of computers is debugged system, and is early stage in system start-up, easily the ruuning situation of observing system;
3, adopt low power design technique, the power consumption that makes whole mainboard need not other radiation fin and radiator fan less than 30 watts on the mainboard;
4, display card BIOS (Basic Input or Output System (BIOS)) is incorporated into mainboard BIOS (Basic Input or Output System (BIOS)) lining, makes native system smaller and more exquisite
5, adopt DOC (disk on the sheet) technology, network computer system guiding speed is obviously accelerated;
6, use higher level lanquage-C language to write BIOS (Basic Input or Output System (BIOS)), increase the readability of code, be convenient to debug and the programmer between mutual interchange;
7, in BIOS (Basic Input or Output System (BIOS)) lining emulation based on the video card simulated program of X86 architecture, the video card that this makes other manufacturer's exploitations based on the X86 system, can be before entering linux kernel, video card is lighted, on screen, shown the startup situation of BIOS (Basic Input or Output System (BIOS));
8, the present invention is integrated intelligent card read/write device, it meets ISO 7816-3 character consensus standard (T=0), is used for the safety certification of network computer;
9, integrated intranet and extranet handoff functionalities.By panel button, can realize easily that intranet and extranet switch.
Consider the safety of network computer, we have used the Godson-1CPU with independent intellectual property right, and this is the foundation stone of security of system.Godson-1CPU has following characteristics: the CPU that is domestic 32 RISC of first item (Reduced Instruction Set Computer) structure; Dynamic pipeline technology and superscalar architecture have been adopted; The particularly important is the design of in system hardware, having carried out secure context, make its big class of the criminal of preventing network attack of using the buffer zone overflow technique to carry out effectively, make this a network computer (NC) mainboard have the basis of high-performance, high safety like this.
For the ease of debugging, this mainboard has adopted the adjustment method based on the RS232 interface, before video card point bright display, can export by serial ports, on another computing machine, see the startup situation of BIOS (Basic Input or Output System (BIOS)), also can debug or the like the configuration space of PCI (peripheral element extension interface) etc. simultaneously by serial ports, very convenient.
The present networks computer motherboard has adopted the CPU (Godson-1) based on low power dissipation design, the north bridge BONITO32 of NEC Corporation and these low power consumption integrated circuits such as south bridge VT82C686A of VIA company, make that the power consumption of whole mainboard is extremely low, need not to use heat radiator and fan, the total power consumption of this mainboard is less than 30W, and the design of low-power consumption has further improved the reliability of system.
BIOS (Basic Input or Output System (BIOS)) adopts the SST28SF040 model.
Godson-1 network computer mainboard has used brand-new reset timing method also initiatively.After pressing reset button, through reset generation circuit, produce reset signal, deliver to south bridge (VIA south bridge 686A) earlier, allow south bridge reset; Then, produce a new reset signal from south bridge and deliver to north bridge (the north bridge BONITO32 of NEC Corporation), north bridge is resetted; After north bridge resets, produce a reset signal, pass to Godson-1CPU, allow CPU produce and reset, this mentality of designing is very unique, and whole flow process is very clear, and system sequence is also very clear and definite, is easy to debugging.
We have also creatively used the system architecture of Godson-1CPU+BONITO (north bridge)+VT82C686A (south bridge), this structure has adopted the north and south bridge of different company, especially the south bridge of VIA, it is integrated equipment such as AC97 audio interface, USB (USB (universal serial bus)) interface, ide interface, PS2 interface, parallel port and serial ports, have lower cost, and can satisfy the requirement that network computer is used fully.
In order to protect the intellectual property better; on the network card equipment of this system (93C46); adopted the hardware encipher measure; write specific data recording in the specific memory address; the method that combines by software and hardware; can realize the system encryption visit well, protecting system resources is not subjected to illegal use, safeguards developer's rights and interests.
Because the complicacy of video card design and exploitation, the video card of being developed for compatible video card manufacturer better simultaneously based on the X86 system, in the BIOS of native system (Basic Input or Output System (BIOS)) part, solidified video card simulated program based on X86, the driver based on the video card of X86 system of other manufacturers exploitation before entering linux kernel, just can be lighted video card like this, show the startup situation of BIOS (Basic Input or Output System (BIOS)), allow the user understand the initialization progress of computing machine.In BIOS (Basic Input or Output System (BIOS)) exploitation, we have also adopted the development scheme based on higher level lanquage-C language, its maximum characteristics are to be easy to exploitation and to be convenient to revise, be convenient to exchange between reading and the programmer, we are developed prototype apace, played very big facilitation.In system design, this mainboard adopts 8 and the optional mode of 16 BIOS (Basic Input or Output System (BIOS)), the range of choice that has expanded BIOS (Basic Input or Output System (BIOS)) chip; Simultaneously, system is solidificated in BIOS (Basic Input or Output System (BIOS)) lining to the parameter of SDRAM (synchronous DRAM) and part hardware, like this, seem and reduced the revisable parameter area of BIOS (Basic Input or Output System (BIOS)), but the reliability that has strengthened network computer is (because on network computer, SDRAM, on all integrated mainboard of network interface card and sound card and video card, upgradeable hardware seldom on the mainboard, so the alterability of BIOS (Basic Input or Output System (BIOS)) is unimportant), the user use and safeguard very simple, could give prominence to like this network computer be convenient to the management, be easy to safeguard, safe and reliable maximum characteristics.
Basic Input or Output System (BIOS) (3) is incorporated in the main board system.
The design has adopted DOC (disk on chip) technology, the guiding speed of quickening system, also alleviated load of server simultaneously, on the flash memory (flash) of 64MB, loaded network computer embedded OS (comprising network computer application software and driver), in network computer opening initialization process, directly from the DOC channeling conduct, rather than guide from server, reduce the load of network and server, also accelerated the stability of system start-up speed and startup simultaneously.In addition, on hardware, take measures, after system development is finished, DOC is made read-only form, and like this, the user just can use network computer more reliably, and the content of not worrying DOC is subjected to having a mind to or distorting unintentionally, has strengthened reliability and security that network computer uses.
Network computer mainboard based on Godson-1CPU has also used the measure of other miniaturizations, such as the memory bar that has used 144 line DIMM, crop the parallel port, memory bank and two PCI slots of having kept a serial ports, 144 lines, all these measures make the area of network computer mainboard further reduce.
This piece has adopted 4 layers of PCB (printed circuit board (PCB)) wiring technique based on the network computer mainboard of Godson-1CPU, has reduced the cost of mainboard plate-making, has made things convenient for later batch process.
Description of drawings
Fig. 1 is based on the network computer main board system structural drawing of Godson-1CPU;
Fig. 2 is Godson-1CPU inner structure block scheme;
Fig. 3 is a north bridge BONITO inner structure block scheme;
Fig. 4 is a south bridge VT82C686A inner structure block scheme;
Embodiment
Among Fig. 1, GODSON-1 (Godson-1) the 1st, the central processing unit of total system is responsible for the operation of program, and it is the core of system.It communicates by oneself data line and north bridge 2, needs data of handling and the data of having handled, all delivers in the internal memory by north bridge 2.North bridge 2 is responsible for providing the steering logic of internal memory, and is responsible for providing the reset timing of CPU, and also having a critical function is primary controller as PCI equipment.And be mounted with BIOS 3 chips of whole network computer on the local bus on the north bridge 2 (local bus), at the system start-up initial stage, be responsible for the initialization of total systems by BIOS 3.Pci bus on the north bridge 2 (BUS) also is connected to south bridge 4 and other PCI equipment (as video card and network interface card etc.), and north bridge 2 is responsible for the functions such as arbitration on the pci bus as the master controller of pci bus (BUS).And on the south bridge 4 except the hard disk that is connected to ide interface, also be responsible for providing the steering logic of low speed peripherals such as keyboard, mouse, serial ports, parallel port, USB mouth and AC97 6.And intelligent card read/write device is connected on the serial ports, and it can realize reading of smart card information by serial ports and compunication, thereby realizes the safety certification of network computer.
The 7th, ide interface.8 is two PCI slots.
The present invention had both utilized prior art fully, but also had creatively adopted many new technologies and new thought, and system has very high practicality.
Claims (7)
1. the repositioning method of the network computer main board system of a Godson-1CPU, this network computer main board system comprises Godson-1CPU (1), north bridge (2) and south bridge (4) at least, it is characterized in that this method comprises:
Start reset button,, produce reset signal, deliver to south bridge (4) south bridge (4) is resetted through reset generation circuit;
Produce new reset signal from south bridge (4) and deliver to north bridge (2), north bridge (2) is resetted;
Produce a reset signal after north bridge (2) resets, deliver to Godson-1CPU (1), Godson 1-CPU (1) is resetted.
2. the repositioning method of the network computer main board system of Godson-1CPU according to claim 1, it is characterized in that, described south bridge (4) adopts VT82C686A, integrated AC97 audio interface, general-purpose serial bus USB interface, ide interface, PS2 interface, parallel port and serial ports are used for the steering logic of low speed peripheral keyboard, mouse, serial ports, parallel port, USB mouth and AC97.
3. the repositioning method of the network computer main board system of Godson-1CPU according to claim 2, it is characterized in that, serial ports on the described south bridge (4) is connected with intelligent card read/write device, this intelligent card read/write device is by serial ports and compunication, realize reading of smart card information, thereby realize the safety certification of network computer.
4. the repositioning method of the network computer main board system of Godson-1CPU according to claim 1, it is characterized in that, described Godson-1CPU (1) is connected in north bridge (2), the central data that is used for total system is handled, data line and north bridge (2) by oneself communicate, and the data of needs processing and the data of having handled are delivered in the internal memory by north bridge (2).
5. the repositioning method of the network computer main board system of Godson-1CPU according to claim 1, it is characterized in that, described north bridge (2) adopts BONITO32, be connected in south bridge (4) and Basic Input or Output System (BIOS) (3), the steering logic that is used for internal memory provides the control of reset timing and the peripheral element extension interface equipment of CPU.
6. the repositioning method of the network computer main board system of Godson-1CPU according to claim 5 is characterized in that, described Basic Input or Output System (BIOS) (3) adopts SST28SF040, is used for the initialization of total system; This Basic Input or Output System (BIOS) (3) is incorporated in the main board system, solidified video card simulated program, based on the driver of the video card of X86 system, before entering linux kernel based on X86, can light video card, show the startup situation of basic input-output system BIOS.
7. the repositioning method of the network computer main board system of Godson-1CPU according to claim 1 is characterized in that, described network computer main board system has adopted disk DOC technology on the sheet, accelerates the guiding speed of system, has alleviated load of server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB03140698XA CN100386709C (en) | 2003-06-06 | 2003-06-06 | Dragon core-1 CPU network computer main board system and reset method |
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| CNB03140698XA CN100386709C (en) | 2003-06-06 | 2003-06-06 | Dragon core-1 CPU network computer main board system and reset method |
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| CN100386709C true CN100386709C (en) | 2008-05-07 |
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| CNB03140698XA Expired - Fee Related CN100386709C (en) | 2003-06-06 | 2003-06-06 | Dragon core-1 CPU network computer main board system and reset method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102253704A (en) * | 2011-07-21 | 2011-11-23 | 曙光信息产业股份有限公司 | Device for meeting electrifying time sequence requirement of LoongSon CPU (central processing unit) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI273412B (en) * | 2004-11-25 | 2007-02-11 | Via Tech Inc | Basic input/output system and computer reset method |
| CN100375941C (en) * | 2004-12-10 | 2008-03-19 | 威盛电子股份有限公司 | Computer system, basic input output system and system reset method |
| CN100357934C (en) * | 2005-05-30 | 2007-12-26 | 威盛电子股份有限公司 | Main board and control method thereof |
| CN101365046B (en) * | 2007-08-10 | 2013-05-08 | 康佳集团股份有限公司 | Integrated machine of television and computer |
| CN101661323B (en) * | 2008-08-29 | 2011-09-21 | 智微科技股份有限公司 | Main control device |
| CN101727426B (en) * | 2008-10-17 | 2013-11-06 | 深圳市朗科科技股份有限公司 | Computer system based on high-speed serial bus |
| CN103440194B (en) * | 2011-05-16 | 2017-07-14 | 曙光信息产业股份有限公司 | A kind of device for debugging Godson CPU and north and south bridge chip |
| CN102214132B (en) * | 2011-05-16 | 2014-07-02 | 曙光信息产业股份有限公司 | Method and device for debugging Loongson central processing unit (CPU), south bridge chip and north bridge chip |
| CN102270029A (en) * | 2011-07-21 | 2011-12-07 | 曙光信息产业(北京)有限公司 | Method for warmly starting mainboard of Loongson blade |
| CN102707782A (en) * | 2012-05-15 | 2012-10-03 | 江苏中科梦兰电子科技有限公司 | Multi-core central processing unit (CPU) based computer mainboard reset system and method |
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| CN1455307A (en) | 2003-11-12 |
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Owner name: BEIJING SHENZHOUTIANMAI NETWORK COMPUTER CO., LTD. Free format text: FORMER OWNER: INST. OF COMPUTING TECHN. ACADEMIA SINICA Effective date: 20090508 |
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Effective date of registration: 20090508 Address after: Four floor, No. 10 South Road, Haidian District Academy of Sciences, Beijing Patentee after: Beijing Skyvein Net Computer Co., Ltd. Address before: No. 6 South Road, Zhongguancun Academy of Sciences, Beijing Patentee before: Institute of Computing Technology, Chinese Academy of Sciences |
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