CN104102517B - The circuit and wiring method of basic input output system program code is written - Google Patents
The circuit and wiring method of basic input output system program code is written Download PDFInfo
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- CN104102517B CN104102517B CN201410349394.1A CN201410349394A CN104102517B CN 104102517 B CN104102517 B CN 104102517B CN 201410349394 A CN201410349394 A CN 201410349394A CN 104102517 B CN104102517 B CN 104102517B
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Abstract
The present invention discloses a kind of circuit and wiring method that basic input output system program code is written, which is connected to main circuit and basic input output system.Basic input output system stores bios program code and has BIOS identifier.The circuit of write-in basic input output system program code includes data source connecting interface, judges trigger module and writing module.The available bios program code of data source connecting interface storage matching basic input output system.Judge that trigger module judges whether basic input output system in completion load bios program code in the predetermined time and can carry out system initialization after the opening initialization stage starts.If basic input output system can not be completed in the given time, judge that trigger module issues trigger signal.After writing module receives trigger signal, available bios program code is downloaded according to BIOS identifier, and be written to basic input output system, to override current data.
Description
Technical field
Updating BIOS or recovery of the present invention about computer system, especially one kind do not need
The circuit and wiring method of basic input output system program code are written under computer system power-on state.
Background technique
In computer systems, basic input output system (Basic Input/ Output System, BIOS) is not
The firmware (firmware) that can or lack.Due to software program code most basic in BIOS storage computer system, enable
The hardware of any computer system all must be transmitted through basic input output system and be detected and be connected.In addition, modern BIOS
Program code is commonly stored in erasable storage unit, such as EEPROM, Flash ROM, stored by storage unit
Program code will not be closed because of computer system just to disappear, and can execute specific imprinting program through computer system,
New program code can be written to override (override) or restore old program code.But it this erasable deposits
Storage unit, the probability that data corruption occurs is relatively high, for example, being destroyed by computer virus, or new program is being written
It is written when code incomplete.If not having to find the pass with regard to carrying out computer system in real time when bios program code is destroyed
Machine or restarting, will lead to computer system can not enter back into open state, can not execute at this time through computer system
New program code is written to override or restore old program code in specific imprinting program.
In in the prior art, applicant it has been suggested that a kind of framework of double BIOS, two BIOS store program code,
And it can mutual redundant.When the program code for finding BIOS has been damaged, the BIOS of another redundant can be used to restore
The program code of main BIOS.But, however not excluded that two BIOS are damaged simultaneously and the state that can not repair.Meanwhile double BIOS are mutual
There is still a need for the interventions of computer system for the mechanism of phase redundant, that is, computer system must maintain open state.If computer
System cannot be started up, and can not still repair to the BIOS damaged.In this case, user still needs computer
System is transported at supplier and repairs.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of electricity that basic input output system program code is written
Road and wiring method can carry out the recovery of BIOS in the case where computer system is unable to complete in-cycle work.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of circuit that basic input output system program code is written, is connected to the main circuit and base of a computer system
This input-output system.Basic input output system stores basic input output system (BIOS) program code, so that substantially defeated
Enter output system and execute function, and basic input output system has a BIOS identifier.Basic input output system journey is written
The circuit of sequence code judges trigger module and a writing module comprising a data source connecting interface, one.
Data source connecting interface is to obtain an available bios program code for corresponding to BIOS identifier.Judgement triggering
Module is connected to main circuit, to judge whether basic input output system can be after the opening initialization stage starts, Yu Yi
Load bios program code is completed in predetermined time and carries out system initialization;If basic input output system can not be in pre- timing
Interior completion loads bios program code and carries out system initialization, judges that trigger module issues a trigger signal.Writing module
It is electrically connected at and judges trigger module, basic input output system and data source connecting interface;Wherein, when writing module receives
Trigger signal, writing module established with basic input output system it is online, to obtain BIOS identifier, writing module and data source
Connecting interface is established online, and according to BIOS identifier, downloads available bios program code, and writing module write-in is available
Bios program code is to basic input output system, to override the current data in basic input output system.
In a specific embodiment, data source connecting interface is connected with main circuit, to the data biography as main circuit
Defeated interface.
In a specific embodiment, after current data of the writing module in overriding basic input output system, compare
Whether met by the data of the data source connecting interface available bios program code downloaded and basic input output system;If symbol
It closes, then exports the information being updated successfully.
In a specific embodiment, the circuit of write-in basic input output system program code further includes BIOS control electricity
Lu Yuyi BIOS switching circuit.BIOS control circuit, which is connected to, judges trigger module and main circuit.The connection of BIOS switching circuit
In basic input output system, and writing module is connected to basic input output system via BIOS switching circuit;Wherein, when sentencing
When disconnected trigger module issues trigger signal, BIOS control circuit issues a switching signal to BIOS switching circuit, switches BIOS
Circuit is switched over to reach writing module with basic input output system and establish the link.
In a specific embodiment, the circuit of write-in basic input output system program code further includes bus switch electricity
Road, writing module are connected to basic input output system through bus converting circuit, wherein when writing module is triggered signal institute
It enables, bus converting circuit switches over, so that writing module is connected to basic input output system.
The present invention also proposes a kind of wiring method of basic input output system program code, in a computer system
When into start-up phase, the basic output system of one available bios program code of write-in to computer system.Method includes:
The open state for judging trigger module monitoring computer system with one judges whether basic input output system can be with
A load bios program code is completed within a predetermined time and carries out system initialization;If basic input output system can not be
Bios program code is loaded in predetermined time and carries out system initialization, issues a trigger signal;
Enable a writing module with trigger signal, and established with basic input output system with writing module it is online, to take
Obtain the BIOS identifier of basic input output system;
It is established with writing module with a data source connecting interface online, and is found out through data source connecting interface and meet BIOS
The available bios program code of the one of identifier;
Available bios program code is written in basic input output system with writing module, overrides basic input and output
The current data of system.
In a specific embodiment, after the current data of overriding basic input output system, a step is further included, than
Whether the current data of available program code and basic input output system is met.
The circuit and its wiring method of write-in basic input output system program code of the invention, mainly can be in BIOS
In the case where failing to so that computer system completes booting, ownership is obtained by writing module, drives necessary device
Bios program code is obtained, to override the data of BIOS, needs to transport computer system to the supply of material to reduce BIOS failure
The frequency repaired at quotient.
Detailed description of the invention
Fig. 1 is the system block diagrams that the circuit of basic input output system program code is written in the embodiment of the present invention.
Fig. 2 is the flow chart of the wiring method of basic input output system program code in the embodiment of the present invention.
Fig. 3 is the circuit block diagram that the circuit of basic input output system program code is written in the embodiment of the present invention.
Fig. 4 is the circuit block diagram that the circuit of basic input output system program code is written in the embodiment of the present invention.
[primary clustering symbol description]
The circuit of 100 write-in basic input output system program codes
110 judge 120 writing module of trigger module
130 data source connecting interface, 140 BIOS control circuit
150 BIOS switching circuit, 160 bus converting circuit
200 main circuit, 300 BIOS.
Specific embodiment
With reference to the accompanying drawing and the embodiment of the present invention is to write-in basic input output system program code of the invention
Circuit is described in further detail with wiring method.
Fig. 1 is the circuit 100 of the write-in basic input output system program code of the embodiment of the present invention, is connected to computer
The main circuit 200 of system and the basic input output system 300(BIOS 300 of computer system).The main circuit 200 is big
It is the circuit framework of the mainboard of computer system in cause, but does not include the BIOS 300 of mainboard.To store in BIOS 300
Bios program code, so that its function can be performed in BIOS 300.In other words, the BIOS 300 that main circuit 200 is connect with it,
Constitute the circuit framework of mainboard.
The circuit 100 of write-in basic input output system program code judges trigger module 110, a writing module comprising one
120 and a data source connecting interface 130.Data source connecting interface 130 is electrically connected at main circuit 200, and constitutes aforementioned master
A part of plate, using the coffret as main circuit 200.Data source connecting interface 130 can be used for obtaining an available BIOS
Program code, the BIOS identifier of available bios program code matching BIOS 300, and can be used for overriding BIOS's 300
Data, and make BIOS 300 that its function can be performed.
Data source connecting interface 130 can be the coffret of local side, for example, USB port, 1394 port IEEE,
The port eSATA, Bluetooth wireless communication interface.That is, data source connecting interface 130 can be used for connecting a data source, such as
Flash disk, hard disk, NAS or another blue-tooth device, to obtain the available bios program code being stored in data source.Data source
Connecting interface 130 is also possible to connect the network interface of remote server, includes wired network interface and radio network interface, example
Such as WIFI, network card, can be online and remote server be logined, using remote server as data source.
As shown in Figure 1, judging that trigger module 110 is connected to main circuit 200, to monitor BIOS 300 in computer system
The opening initialization stage state.Judge that trigger module 110 judges whether BIOS 300 can open in the opening initialization stage
After beginning, in completion load bios program code in a predetermined time and system initialization is carried out.
If BIOS 300 can not complete load bios program code in the given time and carry out system initialization, judge to touch
Hair module 110 determines that BIOS 300 can not work normally (may be hardware damage, it is also possible to be program code damage), and
Trigger module 110 issues a trigger signal.
As shown in Figure 1, writing module 120, which is electrically connected at, judges trigger module 110, BIOS 300 and data source connection
Interface 130.When writing module 120 receives the trigger signal for judging that trigger module 110 issues, then writing module 120 is activated.
At this point, writing module 120 and BIOS 300 establish it is online, to obtain BIOS identifier.Then, writing module 120 and data source
Connecting interface 130 is established online, and according to BIOS identifier, whether the data source for checking that data source connecting interface 130 is connected is stored up
Deposit the available bios program code for meeting BIOS identifier.If there is the available bios program code for meeting BIOS identifier,
Then writing module 120 executes bios program code write operation, downloads available bios program code, and by bios program code
It is written in BIOS 300, to override the Current data in BIOS 300.
Finally, writing module 120 compares the available bios program code and BIOS downloaded by data source connecting interface 130
Whether the data in 300 meet.If meeting, the information that output one is updated successfully, and restart computer system, so that computer
System reaches normal boot-strap.If not meeting, the output of writing module 120 updates failure information, and restarts computer system or closing
Computer system.In general, usually may be that the hardware of BIOS 300 has been damaged if updating failure, failure information at this time
And computer shutdown, it may remind the user that computer system must be sent at supplier and repair.
As shown in Figures 1 and 2, the process of the wiring method of the specific basic input output system program code of the present invention is said
It is bright as follows.
As shown in Figures 1 and 2, when computer system enters start-up phase, write-in basic input and output system of the invention
The circuit 100 of system program code also starts simultaneously.At this point, BIOS 300 executes self detection (Power-On Self of booting
Test, POST), to carry out the initialization procedure of computer system items hardware, and booting computer system load operating system.
As step Step 110 judges trigger mode after the starting of circuit 100 of basic input output system program code is written
Block 110 is zeroed to the chronograph mechanism of its inside, and starts timing.This chronograph mechanism can be WatchDog Timer
(WatchDog Timer, WDT), one predetermined time of WDT inner setting, to judge that the BIOS 300 of computer system whether may be used
In completion load 300 program code of BIOS in the predetermined time.
Such as step Step 120, judge that trigger module 110 monitors the open state of computer system, and compares chronograph mechanism
The stress state by time and bios program code.If chronograph mechanism has arrived at the predetermined time by the time,
And BIOS 300 can not be loaded successfully and be started bios program code, then judges that trigger module 110 determines that BIOS 300 can not be
Load bios program code is completed in predetermined time and carries out system initialization, that is, BIOS 300 is for loading bios program generation
Code fails with POST operation is executed.
As step Step 130 judges to trigger after determining load bios program code and executing POST operation failure
Module 110 issues trigger signal to writing module 120, to enable writing module 120.
As step Step 140, writing module 120 and BIOS 300 establish it is online, to obtain BIOS identifier.This one
BIOS identifier may include the ardware model number of the ardware model number of 300 system of BIOS, main circuit 200, this information is to download
Correct bios program code.Writing module 120 first checks that BIOS identifier whether there is, and if it exists, then reads BIOS mark
Symbol, and perform the next step rapid.
Such as step Step 150, then, writing module 120 is established online with data source connecting interface 130, and penetrates data
Source connecting interface 130 finds out the bios program code for meeting BIOS identifier, to judge whether to obtain available BIOS journey
Sequence code.
Such as step Step 160, writing module 120 executes bios program code write operation, by available bios program generation
In code write-in BIOS 300, the Current data in BIOS 300 is override.
Such as step Step 170, writing module 120, which compares available program code and the Current data in BIOS 300, is
It is no to meet, if meeting, Step180 is thened follow the steps, otherwise, executes step Step190.
If step Step 180 exports the information being updated successfully, and restart computer system if meeting, so that meter
Calculation machine system reaches normal boot-strap.
Such as step Step 190, if not meeting, the output of writing module 120 updates failure information, and restarts department of computer science
It unites or shuts down computer system.
It usually may be that the hardware of BIOS 300 has been damaged or data source connects as previously mentioned, if updating failure
Mouthfuls 130 error in data, failure information and computer shutdown at this time, may remind the user that must be sent to computer system the supply of material
It is repaired at quotient.
Fig. 3 is the specific of the circuit 100 of write-in basic input output system program code disclosed by the embodiment of the present invention
State sample implementation, is connected to the main circuit 200 of computer system, and main circuit 200 is connected to BIOS 300.It is stored in BIOS 300
Bios program code, so that its function can be performed in BIOS 300, to execute POST operation to main circuit 200.
As shown in figure 3, the circuit 100 of write-in basic input output system program code further includes BIOS control circuit
140, BIOS switching circuit 150.
BIOS control circuit 140, which is connected to, judges trigger module 110 and main circuit 200, and switches electricity via BIOS
Road 150 connects BIOS 300, to change the on line state of BIOS 300.
BIOS switching circuit 150 is connected to BIOS 300, and writing module 120 is connected to via BIOS switching circuit 150
BIOS 300。
Under normal open state, judge that trigger module 110 will not be issued trigger signal, and is tieed up by main circuit 200
It holds online with BIOS 300.If there is no driving main circuits 200 to carry out POST by BIOS 300, and to judge trigger module
When 110 sending trigger signal, then BIOS control circuit 140 issues switching signal to BIOS switching circuit 150, BIOS switching circuit
150 switch over to reach writing module 120 and BIOS 300 and establish and link.
Fig. 4 is the another specific embodiment that the circuit 100 of basic input output system program code is written, and is written substantially defeated
The circuit 100 for entering output system program code further includes bus converting circuit 160.Writing module 120 penetrates bus switch
Circuit 160 is connected to BIOS 300.When the signal that is triggered of writing module 120 is enabled, bus converting circuit 160 makes that mould is written
Block 120 is connected to BIOS 300;In the case where 300 normal operation of BIOS, bus converting circuit 160 maintains writing module 120
In off-line state.
The circuit 100 and its wiring method of write-in basic input output system program code of the invention, mainly can be
In the case that BIOS 300 is failed to so that computer system completes booting, ownership, driving are obtained by writing module 120
Necessary device obtains bios program code, to override the data of BIOS 300, needs to transport to reduce the failure of BIOS 300
Send the frequency repaired at computer system to supplier.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (7)
1. a kind of circuit that basic input output system program code is written, it is connected to the main circuit of a computer system and basic
Input-output system, the basic input output system stores basic input-output system BIOS program code, so that the base
This input-output system executes function, and the basic input output system has a BIOS identifier;It is characterized in that, described
The circuit of write-in basic input output system program code includes:
One data source connecting interface, to obtain an available bios program code for corresponding to the BIOS identifier;
One judges trigger module, is connected to the main circuit, to judge whether the basic input output system can opened
After machine initial phase starts, in completion load bios program code in a predetermined time and system initialization is carried out;If described
Basic input output system can not complete load bios program code within the predetermined time and carry out system initialization, described
Judge that trigger module issues a trigger signal;
One writing module is electrically connected at the judgement trigger module, the basic input output system and the data source
Connecting interface;
Wherein, when the write module receives the trigger signal, the write module is built with the basic input output system
Stand it is online, to obtain the BIOS identifier, the write module established with the data source connecting interface it is online, and according to institute
BIOS identifier is stated, downloads the available bios program code, and the available bios program is written in the write module
Code is to the basic input output system, to override the current data in the basic input output system.
2. the circuit of write-in basic input output system program code according to claim 1, which is characterized in that the number
The main circuit is connected with according to source connecting interface.
3. the circuit of write-in basic input output system program code according to claim 1, which is characterized in that described to write
Enter module after overriding the current data in the basic input output system, write module comparison is connected by data source
Whether the available bios program code of interface downloading and the data of the basic input output system meet;It is defeated if meeting
The information being updated successfully out.
4. the circuit of write-in basic input output system program code according to claim 1, which is characterized in that also wrap
Contain:
One BIOS control circuit is connected to the judgement trigger module and the main circuit;
One BIOS switching circuit is connected to the basic input output system, and the write module switches via the BIOS
Circuit connection is in the basic input output system;
Wherein, when the judgement trigger module issues the trigger signal, the BIOS control circuit issues a switching signal
To the BIOS switching circuit, switch over the BIOS switching circuit to reach the write module and the basic input
Output system establishes the link.
5. the circuit of write-in basic input output system program code according to claim 1, which is characterized in that also wrap
Contain:
One bus converting circuit, the write module are connected to the basic input output system through bus converting circuit, when
The write module is enabled by the trigger signal, and the bus converting circuit switches over so that the write module connects
In the basic input output system.
6. a kind of wiring method of basic input output system program code, to enter start-up phase in a computer system
When, the basic output system of one available bios program code of write-in to the computer system, which is characterized in that the method
Include:
Judge that trigger module monitors the open state of the computer system with one, whether judges the basic input output system
A load bios program code can be completed within a predetermined time and carries out system initialization;If the basic input and output system
System can not load the bios program code within the predetermined time and carry out system initialization, issue a trigger signal;
A writing module is enabled with the trigger signal, and is established and is joined with the write module and the basic input output system
Machine, to obtain the BIOS identifier of the basic input output system;
It is established with the write module with a data source connecting interface online, and finds out and meet through the data source connecting interface
The available bios program code of the one of BIOS identifier;And
The available bios program code is written in the basic input output system with the write module, described in overriding
The current data of basic input output system.
7. the wiring method of basic input output system program code according to claim 6, which is characterized in that also include
One step, after the current data for overriding the basic input output system, compare available bios program code with it is described
Whether the current data of basic input output system meets.
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