CN101017441A - Electric device, start method of electric and update method of BIOS - Google Patents
Electric device, start method of electric and update method of BIOS Download PDFInfo
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- CN101017441A CN101017441A CNA2007100270176A CN200710027017A CN101017441A CN 101017441 A CN101017441 A CN 101017441A CN A2007100270176 A CNA2007100270176 A CN A2007100270176A CN 200710027017 A CN200710027017 A CN 200710027017A CN 101017441 A CN101017441 A CN 101017441A
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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
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1433—Saving, restoring, recovering or retrying at system level during software upgrading
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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
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1417—Boot up procedures
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Abstract
This invention discloses one electron device, which comprises central processor, memory, switch unit, basic input and output system, wherein, the memory sets two BIOS program memory areas; the BIOS switch unit is to electrify the device and to trigger the electron device switch from one BIOS program memory area to other electron device; the switch unit is to electrify the device or to break the CPU to the division address wire and to conduct division wire for electron device start. This invention also discloses one start method and BIOS update method.
Description
Technical field
The present invention relates to electronic technology field, be specifically related to the startup method and the BIOS upgrade method of a kind of electronic equipment, electronic equipment.
Background technology
BIOS (Basic Input/Output System, Basic Input or Output System (BIOS)) full name is ROM-BIOS, be writing a Chinese character in simplified form of ROM (read-only memory) basic input/output, it is actual to be one group and to be cured in the electronic equipments such as computing machine, for computer equipment provides the lowermost level program of direct hardware controls, it is the hinge that is communicated with between software program and the hardware device, generally, BIOS is " converter " or perhaps the interface (though itself also is a program) between hardware and the software program, be responsible for solving the instant requirement of hardware, and carry out the operation requirement of hardware is concrete by software.
The BIOS chip of computing machine has substantially all adopted Flash ROM (flash memory) at present, can realize the upgrading of BIOS by specific write-in program, and upgrading BIOS mainly contains two big purposes:
One, obtains new function.
The most direct benefit of upgrading BIOS can obtain many new functions exactly, such as the CPU that can support new frequency and newtype, for example the old mainboard of Yi Qian some is supported figure Latin core Pentium III and Celeron by upgrading BIOS, and some present mainboard can be supported up-to-date Prescott core Pentium4E CPU by upgrading BIOS; Big capacity hard disk can be directly used in the break through capacity restriction; Obtain new Starting mode; The function of conductively-closed before opening, the Hyper-Threading of Intel for example, the internal memory interleaving technique of VIA etc.; Discern other new hardware etc.
Two, the leak BUG among the solution old edition BIOS.
Since BIOS also is a program; just certainly existing BUG, and hardware technological development is maked rapid progress now, along with the aggravation of market competition; the cycle of mainboard manufacturer release product is also shorter and shorter; inevitable on BIOS writes also have the place of complying with one's wishes not to the utmost, and these BUG regular meetings cause indescribable fault, for example restart without reason; often crash; system effectiveness is low, and device conflict, hardware device " are lost " or the like without reason.
In the prior art, BIOS upgrading mode adopts the method for original bios program among the direct covering Flash ROM to realize.Unusual (for example file transfer is unusual, the FLASH read-write is unusual, escalation process in power down) appears in this mode BIOS escalation process, itself there is defective in the BIOS boot that is used to upgrade if adopt, and can cause electronic equipments such as computing machine, communicator to start.
Summary of the invention
In view of this, the fundamental purpose of the embodiment of the invention is to provide the startup method and the BIOS upgrade method of a kind of electronic equipment, electronic equipment, guarantee in the BIOS escalation process to occur to cause unusually to upgrade under the situation of failure, electronic equipment still can normally start safely.
In order to reach described method purpose, the embodiment of the invention provides a kind of startup method of electronic equipment, comprising:
A, when electronic equipment powers on, start, if start unsuccessful or electronic equipment re-powers execution in step B with the first basic input-output system BIOS program storage area guiding device;
B, hardware logic electric circuit trigger equipment switch to the second bios program memory block from the described first bios program memory block, start with the second bios program memory block guiding device.
In addition, the embodiment of the invention also provides a kind of basic input-output system BIOS upgrade method, comprises step:
Two bios program memory blocks are set, and described bios program memory block is used to store the bios program that the guiding electronic equipment starts, and when described electronic equipment being carried out the BIOS upgrading, may further comprise the steps:
A, electronic equipment power on, and start with first bios program memory block guiding electronic equipment, and after electronic equipment started successfully, the bios program that will be used to upgrade was loaded into the second bios program memory block;
B, electronic equipment re-power, hardware logic electric circuit triggers electronic equipment and switches to the described second bios program memory block from the described first bios program memory block, start with described second bios program memory block guiding electronic equipment, if start unsuccessful, then hardware logic electric circuit triggers electronic equipment and switches to the described first bios program memory block from the described second bios program memory block, starts with described first bios program memory block guiding electronic equipment once more;
C, judge whether the bios program memory block that current guiding device successfully starts is the described second bios program memory block, if then the bios program in the described second bios program memory block is loaded into the described first bios program memory block.
Correspondingly, the embodiment of the invention also provides a kind of electronic equipment, and comprise central processing unit, storer, switch element, reach the basic input-output system BIOS switch unit, wherein:
Storer is provided with two bios program memory blocks, and described BIOS storage area stores is useful on the bios program that the guiding electronic equipment starts;
The BIOS switch unit is used for powering on or electronic equipment when resetting at electronic equipment, triggers the bios program memory block of electronic equipment from described storer and switches to from another bios program memory block guiding device and start;
Switch element is used for powering on or electronic equipment when resetting in electronic equipment start, disconnects the partition address line of described central processing unit to described storer, and is used for after electronic equipment successfully starts the described partition address line of conducting.
The BIOS upgrade method of the embodiment of the invention is by being provided with two bios program memory blocks; when electronic equipment normally moves; the bios program that will be used to upgrade is loaded into the current second bios program memory block that is used to guide outside the first bios program memory block that electronic equipment starts; when electronic equipment powers on once more; triggering electronic equipment by hardware logic electric circuit jumps to the startup of described second bios program memory block guiding electronic equipment; if guiding is unsuccessful; then triggering electronic equipment by hardware logic electric circuit once more jumps to preserve the first bios program memory block guiding electronic equipment startup of former bios program; thereby avoided in escalation process, taking place the upgrading failure; the failure that the defective that bios program itself unusual such as the appearance of BIOS ROMPaq or that be used to upgrade exists causes; potential risk to the equipment generation; guaranteed electronic equipment no matter the BIOS still failure of upgrading successfully all can normally start, improved the security of BIOS upgrading.
Description of drawings
Fig. 1 is that the electronic equipment of the embodiment of the invention is formed synoptic diagram;
Fig. 2 is a kind of schematic flow sheet of startup method of electronic equipment of the embodiment of the invention of the embodiment of the invention;
Fig. 3 is the bios program loading method schematic flow sheet in the BIOS upgrade method of the embodiment of the invention;
Fig. 4 is that the BIOS guiding in the BIOS upgrade method of the embodiment of the invention starts the method flow synoptic diagram.
Embodiment
For the technical scheme and the advantage that make the embodiment of the invention is clearer, the embodiment of the invention is further elaborated below in conjunction with the accompanying drawing embodiment that develops simultaneously.
With reference to figure 1, be that the electronic equipment of the embodiment of the invention is formed synoptic diagram.The described electronic equipment of the embodiment of the invention had both comprised as general-purpose computing systems such as personal computers, had also comprised the communication electronic equipment of dedicated computer systems such as utilization embedded computer system, as network access equipment, communication exchange equipment etc.As shown in the figure, the described electronic equipment of the embodiment of the invention mainly comprises central processing unit 1, storer 2, switch element 3, switch unit 4 and upgrading control subsystem 5.Below each ingredient is elaborated.
Central processing unit 1 is realized operations such as the address visit of described storer 2 and data reads by address bus and data bus, and is same as the prior art, do not repeat them here.
Herein, described in the specific implementation storer 2 is not loss storage of power down, generalized case is EPROM (E1ectrically Erasable Programmable ROM, electrically erasable ROM) or FLASH ROM (flash memory), for simplified design, generally speaking, described bios program memory block A and bios program memory block B are begun to set gradually from the lowest order of described storer 2, when for example the default maximum space of bios program memory block is 512K, the partition address scope of described bios program memory block A is 0x0 to 0x03FFFF, the partition address scope of described bios program memory block B is 0x040000 to 0x07FFFF, at this moment, corresponding to described bios program memory block A, the address bus A18 of described central processing unit 1 is output as 0, corresponding to described bios program memory block B, the address bus A18 of described central processing unit 1 is output as 1.In addition, in the specific implementation, it is can be more flexibly that the partition address of described bios program memory block A and described bios program memory block B is distributed, for example, the partition address scope that described bios program memory block A can be set is 0x0 to 0x7FFFF, the partition address scope of described bios program memory block B is 0x080000 to 0xFFFFF, at this moment, corresponding to described bios program memory block A, the address bus A19 of described central processing unit 1 is output as 0, corresponding to described bios program memory block B, the address bus A19 of described central processing unit 1 is output as 1.
BIOS switch unit 4 is used for powering on or electronic equipment when resetting at electronic equipment, triggers the bios program memory block of electronic equipment from described storer 2 and switches to from another bios program memory block guiding electronic equipment and start.
Described BIOS switch unit 4 has first output connecting pin and second output connecting pin, power at electronic equipment and to reset or electronic equipment resets that (for example electronic equipment starts overtime, hardware watchdog circuit reset electronic equipment) time, the output state of described first output connecting pin is the enable signal output state, and described enable signal is used to control described switch element 3 and disconnects the partition address line of described central processing unit 1 to described storer 2; After electronic equipment successfully started, the output state of described first output connecting pin was for forbidding the enable signal output state, and the described enable signal of forbidding is used to control the partition address line of the described central processing unit 1 of described switch element 3 conductings to described storer 2; The output state of described second output connecting pin comprises two and described each bios program memory block corresponding address output state, power at electronic equipment and to reset or electronic equipment when resetting, the output state that triggers described second output connecting pin switches to another address output state by an address output state in described two address output states.
Described partition address line is in many single data bus between described central processing unit 1 and the described storer 2, and the logic output state of described partition address line (0 or 1) can determine the partition address scope that described central processing unit 1 reads from described storer 2.When for example the default maximum space of bios program memory block is 512K, the partition address scope of described bios program memory block A is 0x0 to 0x03FFFF, the partition address scope of described bios program memory block B is 0x040000 to 0x07FFFF, at this moment, corresponding to described bios program memory block A, the address bus A18 of described central processing unit is output as 0, corresponding to described bios program memory block B, the address bus A18 of described central processing unit 1 is output as 1, and described address bus A18 is described partition address line.
Begin to set gradually from the lowest order of described storer 2 with the described bios program memory block A in the storer 2 described in the electronic equipment of the embodiment of the invention and bios program memory block B below, and when the default maximum space of described bios program memory block is 512K, described switch unit 4, described switch element 3 and described storer 2 are further elaborated.When specific embodiment, described switch unit 4 is the programmable hardware logical circuit, as CPLD (complex programmable logic devices, CPLD), described switch element 3 is a hardware logic electric circuit, and as 244 logic drive circuits, its major function is equivalent to a gate-controlled switch circuit, be the input state that its input and the conducting state of output terminal are controlled by Enable Pin, first output connecting pin of described switch unit 4 is connected with the Enable Pin of described switch element 3.When central processing unit 2 reads described bios program memory block A (being the partition holding of 0x0 to 0x3FFFF at the address realm of described storer 2 promptly also), the address bus A18 of described central processing unit 1 is output as 0, when central processing unit 2 reads described bios program memory block B (being the partition holding of 0x040000 to 0x07FFFF at the address realm of described storer 2 promptly also), the address bus A18 of described central processing unit 1 is output as 1, in embodiments of the present invention, in electronic equipment is power-up to successfully section start-up time, the described switch element of the described first output connecting pin output enable signal controlling of described switch unit 43 disconnect described central processing unit 1 to the address bus A18 of described storer 2 (when the Enable Pin of described switch element is the low level conducting, when high level disconnects, described enable signal is a high level signal), described second pin of described switch unit 4 comprises two address output states, and described second pin is connected in the address bus A18 input end in the described storer 2.When described second pin is output as 0, read the bios program that is used for the guidance system startup among the bios program memory block A of described central processing unit 1 from described storer 2; When described second pin is output as 1, read the bios program that is used for the guidance system startup among the bios program memory block B of described central processing unit 1 from described storer 2.When powering on, electronic equipment resets or electronic equipment when resetting (watchdog circuit sends reset signal), the address output state that triggers described second output connecting pin of described switch unit 4 switches between 0 and 1, because described switch unit 4 is the programmable hardware logical circuit, as CPLD (complex programmable logic devices, CPLD), the circulation of himself state is switched does not need software control, when one of among described bios program memory block A and the bios program memory block B when unavailable (as infective virus, upgrading failure etc. all may cause corresponding bios program memory block can not successful guidance system to start), trigger the switching of address output state of described second pin of switch unit 4 by hardware reset, start thereby jump to another bios program memory block guidance system.In embodiments of the present invention, after electronic equipment successfully starts, the address bus of CPU is interference-free when guaranteeing that electronic equipment normally moves, described central processing unit 1 is controlled the output state of described first pin of described switch unit 4 for forbidding the enable signal output state by software program for execution, by described forbid enable signal control the described central processing unit 1 of described switch element 3 conductings to the address bus A18 of described storer (when the Enable Pin of described switch element is the low level conducting, when high level disconnects, the described enable signal of forbidding is a low level signal), correspondingly, described central processing unit 1 output state of controlling second pin by software program for execution is a high-impedance state.
In specific embodiment, described switch unit 4 comprises a promoter region flag register, and it act as preserves the output state of described second pin of described switch unit, is used to offer software and discerns current promoter region.
Upgrading control subsystem 5, the described upgrading control subsystem 5 of the embodiment of the invention mainly comprises:
Herein, when the bios program memory block that current guiding electronic equipment starts was bios program memory block A, the bios program that will be used to upgrade was loaded into bios program memory block B; When the bios program memory block that current guiding electronic equipment starts was bios program memory block B, the bios program that will be used to upgrade was loaded into bios program memory block A.The described bios program that is used to upgrade can be the bios program file that on-line updating of network detects and downloads to.For convenience, subsequent descriptions will represent to load the bios program memory block of the new refresh routine of BIOS with the BIOS update area.
Judging unit 52 after electronic equipment restarts successfully, judges whether the bios program memory block that is used to when restarting guide electronic equipment to start is described another bios program memory block and generates the corresponding judgment result.
Herein, restart at electronic equipment and to power on when resetting, the address output state generation redirect of described second output connecting pin of described switch unit 4, for example, suppose electronic equipment restart power on before the current BIOS boot section of electronic equipment be bios program memory block A (at this moment, the BIOS update area is bios program memory block B), described second output connecting pin of corresponding described switch unit 4 is output as 0, when electronic equipment powers on replacement, the output redirect that triggers described second output connecting pin of described switch unit 4 is 1, has realized that described central processing unit 1 reads bios program guiding electronic equipment from bios program memory block B and starts.
Updating result output unit 54 is used in described judgment unit judges result when being, the outputting BIOS successful information of upgrading, in described judgment unit judges result for not the time, the unsuccessful information of outputting BIOS upgrading.
With reference to figure 2, be a kind of schematic flow sheet that starts method of the embodiment of the invention.The described startup method of the embodiment of the invention mainly may further comprise the steps as shown in the figure:
Step s201 is provided with two bios program memory blocks.
Herein, described bios program memory block is used to store the bios program that the guiding electronic equipment starts.Generally speaking, described two bios program memory blocks are arranged on same power down not in the loss storage, as EPROM (Electrically Erasable Programmable ROM, electrically erasable ROM) or FLASH ROM (flash memory).Generally speaking, with described two bios program memory blocks from described power down not the lowest order of loss storage begin to set gradually, when for example the default maximum space of bios program memory block is 512K, for convenience of description, with described two bios program memory block called after bios program memory block A and bios program memory block B, the partition address scope of described bios program memory block A is 0x0 to 0x03FFFF, the partition address scope of described bios program memory block B is 0x040000 to 0x07FFFF, at this moment, corresponding to described bios program memory block A, the address bus A18 of electronic equipment CPU is output as 0, corresponding to described bios program memory block B, the address bus A18 of electronic equipment CPU is output as 1.In addition, in the specific implementation, it is can be more flexibly that the partition address of described bios program memory block A and described bios program memory block B is distributed, for example, the partition address scope that described bios program memory block A can be set is 0x0 to 0x7FFFF, the partition address scope of described bios program memory block B is 0x080000 to 0xFFFFF, at this moment, corresponding to described bios program memory block A, the address bus A19 of electronic equipment CPU is output as 0, corresponding to described bios program memory block B, the address bus A19 of electronic equipment CPU is output as 1.
Step s202 when electronic equipment powers on, starts with first bios program memory block guiding electronic equipment.
Herein, when electronic equipment powered on, hardware logic electric circuit control electronic equipment CPU started one of from described two bios program memory blocks.
Step s203 if startup is unsuccessful or electronic equipment re-powers, then starts with second bios program memory block guiding electronic equipment.
Herein, during specific implementation, trigger electronic equipment by hardware logic electric circuit and jump to from the described first bios program memory block with the startup of second bios program memory block guiding electronic equipment.
After step s204, electronic equipment successfully start, the bios program in the described second bios program memory block is loaded into the described first bios program memory block.
Herein, because upgrading failure, reasons such as virus infections all may cause a bios program memory block in described two the bios program memory blocks of the embodiment of the invention unavailable (also promptly can not guide electronic equipment normally to start), if in described step s202, the described first bios program memory block can not guide electronic equipment successfully to start, start when overtime, the house dog hardware circuit will send reset signal, address output state triggering electronic equipment by the control hardware logical circuit switches to the second bios program memory block from the first bios program memory block, start (the address output state that the reset signal of watchdog circuit triggers hardware logic electric circuit switches) with second bios program memory block guiding electronic equipment between 0 and 1, the switching of the address output state of the described hardware logic electric circuit of the embodiment of the invention is not need to realize control by executive software, starts (electronic equipment be can't executive software) thereby guarantee to switch to corresponding available bios program memory block guiding electronic equipment before electronic equipment successfully starts before startup.After electronic equipment successfully starts from the described second bios program memory block, bios program in the described second bios program memory block duplicated be loaded into the described first bios program memory block, thereby guarantee that electronic equipment starts with any the guiding electronic equipment in described two bios program memory blocks.
On the basis of the described startup method of the embodiment of the invention, the embodiment of the invention also provides a kind of BIOS upgrade method.
With reference to figure 3, be the bios program loading method schematic flow sheet in the BIOS upgrade method of the embodiment of the invention.This bios program loading method mainly may further comprise the steps as shown in the figure:
Step s301 is provided with two bios program memory blocks.
Herein, identical among the method to set up of described two bios program memory blocks and function and the described step s201, do not repeat them here.
Step s302 when electronic equipment powers on, starts with first bios program memory block guiding electronic equipment.
Herein, the described first bios program memory block is the current startup of electronic equipment boot section, also be electronic equipment after powering on, under the redirect of hardware logic electric circuit control, electronic equipment CPU reads bios program guiding electronic equipment and starts from this bios program memory block.When embodiment of the invention specific implementation, hardware logic provides the promoter region flag register, be used to preserve the current promoter region of electronic equipment mark, during specific implementation, for example, the address output state of bios program memory block A corresponding hardware logic is 0 (partition address of corresponding stored device is 0x0 to 0x03FFFF), the address output state of bios program memory block B corresponding hardware logic is 1 (partition address of corresponding stored device is 0x040000 to 0x07FFFF), at this moment, hardware logic electric circuit is preserved (0 or 1) by the promoter region flag register is provided with corresponding address output state.By reading the address output state in the flag register of described promoter region, can distinguish the current startup of electronic equipment boot section and another bios program memory block.
After step s303, electronic equipment started successfully, the bios program that will be used to upgrade was loaded into the second bios program memory block.
Herein, described the 2nd BIOS memory block is another bios program memory block outside the current startup of the electronic equipment boot section described in described two bios program memory blocks.
Step s304 is provided with the update area identification information and the update area identification information will be set and preserves.
Herein, in one embodiment, described renewal identification information comprises updating mark information and update area label information, whether described updating mark information is used for reflection the renewal of upgrading of pair bios program, as updating mark information is set for effective in this step s304, described update area label information is used for the bios program memory block that mark is updated.
The bios program of the BIOS upgrade method by the embodiment of the invention loads flow process, only upgraded the bios program in the described second bios program memory block (also being non-current guiding promoter region) in two bios program memory blocks of described setting, and, whether the new BIOS refresh routine that loads is effectively also uncertain in the described second bios program memory block, the execution because bios program only just can be called when electronic equipment starts, if electronic equipment can start with the guiding of the described second bios program memory block, then the bios program of expression upgrading loading is effective, illustrate and upgrade successfully, if can not guiding with the described second bios program memory block, electronic equipment successfully starts (hardware reset, triggering is jumped to the startup of described first bios program memory block guiding electronic equipment), then the explanation upgrading is unsuccessful.Describe below by embodiment, the BIOS guiding startup method after electronic equipment is restarted is described in detail.
With reference to figure 4, be that the BIOS guiding in the BIOS upgrade method of the embodiment of the invention starts the method flow synoptic diagram.This BIOS guiding startup method mainly may further comprise the steps as shown in the figure:
Step s401, the electronic equipment electrifying startup.
Step s402 forbids that logical address is redirected.
Herein, described forbid logical address be redirected be meant that electronic equipment starts successfully after, electronic equipment CPU is by software program for execution control hardware logical circuit, the address wire that when electronic equipment starts, is blocked between conducting CPU and the bios program storer (as address bus A18), and hardware logic electric circuit is set to high-impedance state to the address output state of BIOS storer, thereby when guaranteeing that electronic equipment normally moves, CPU is to operations such as the normal address visit of storer and data reads.
Step s403 reads updating mark information.
Whether herein, described updating mark information is used for reflection the renewal of upgrading of pair bios program.
Step s404 has judged whether renewal, if judged result is for being, then execution in step 404, otherwise, end process then.
, when updating mark information is effective, illustrate that then bios program has renewal herein, otherwise, illustrate that bios program does not upgrade.
Step s405 reads the update area label information.
Herein, by reading the update area label information, system can know that specifically which is upgraded renewal in described two bios program storeies.
Step s406 judges whether current promoter region is update area, if judged result is for being, and execution in step s407 then, otherwise, execution in step s408.
Herein, because when establishing electronic equipment and power on, hardware logic electric circuit is by the redirect of the switching controls BIOS promoter region of address output state, if therefore current promoter region is (when also promptly this electronic equipment successfully starts, be used to guide the bios program memory block of electronic equipment startup) be update area, illustrate that then the bios program memory block that is upgraded update BIOS program can successfully guide electronic equipment to start, expression is upgraded successfully; Otherwise, if current promoter region is not a update area, then the bios program memory block of practical guide electronic equipment startup remains the bios program memory block that has former bios program, illustrate that the bios program memory block that is upgraded update BIOS program can successfully guide electronic equipment to start (after electronic equipment powers on and jump to update area, start failure with update area guiding electronic equipment, start overtime, the watchdog reset signal hardware logic electric circuit that resets, the bios program memory block guiding electronic equipment that is triggered to preserve former bios program starts), expression upgrading failure.
Step s407 duplicates the bios program in the current promoter region and is loaded into another bios program memory block.
Step s408, not success of prompting upgrading.
Step s409, it is invalid that update mark information is set.
Herein, the purpose of this step s409 is to guarantee when electronic equipment BIOS not being upgraded the normal operation and the use of electronic equipment.
Step s410, end process.
The BIOS upgrade method of the embodiment of the invention is by being provided with two bios program memory blocks; when electronic equipment normally moves; the bios program that will be used to upgrade is loaded into the current second bios program memory block that is used to guide outside the first bios program memory block that electronic equipment starts; when electronic equipment powers on once more; jump to the startup of described second bios program memory block guiding electronic equipment by triggering hardware logic electric circuit; if guiding is unsuccessful; then triggering hardware logic electric circuit once more jumps to preserve the first bios program memory block guiding electronic equipment startup of former bios program; thereby avoided in escalation process, taking place the upgrading failure; the failure that the defective that bios program itself unusual such as the appearance of BIOS ROMPaq or that be used to upgrade exists causes; potential risk to the equipment generation; guaranteed electronic equipment no matter the BIOS still failure of upgrading successfully all can normally start, improved the security of BIOS upgrading.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1, a kind of startup method of electronic equipment is characterized in that, comprises step:
A, when electronic equipment powers on, start, if start unsuccessful or electronic equipment re-powers execution in step B with first basic input-output system BIOS program storage area guiding electronic equipment;
B, hardware logic electric circuit trigger electronic equipment and switch to the second bios program memory block from the described first bios program memory block, start with second bios program memory block guiding electronic equipment.
2, method as claimed in claim 12 is characterized in that, described step B further comprises step:
After electronic equipment starts successfully, the bios program in the described second bios program memory block is loaded into the described first bios program memory block.
3, a kind of basic input-output system BIOS upgrade method, it is characterized in that, two bios program memory blocks are set, described bios program memory block is used to store the bios program that the guiding electronic equipment starts, when described electronic equipment being carried out the BIOS upgrading, may further comprise the steps:
A, electronic equipment power on, and start with first bios program memory block guiding electronic equipment, and after electronic equipment started successfully, the bios program that will be used to upgrade was loaded into the second bios program memory block;
B, electronic equipment re-power, hardware logic electric circuit triggers electronic equipment and switches to the described second bios program memory block from the described first bios program memory block, start with described second bios program memory block guiding electronic equipment, if start unsuccessful, then hardware logic electric circuit triggers electronic equipment and switches to the described first bios program memory block from the described second bios program memory block, starts with described first bios program memory block guiding electronic equipment once more;
C, judge whether the bios program memory block that current guiding electronic equipment successfully starts is the described second bios program memory block, if then the bios program in the described second bios program memory block is loaded into the described first bios program memory block.
4, method as claimed in claim 3 is characterized in that, also comprises step between described step a and step b:
A1, the update area identification information is set and described update area identification information is preserved.
5, method as claimed in claim 4 is characterized in that, judges among the described step c whether the bios program memory block that current guiding electronic equipment successfully starts is that the described second bios program memory block is:
Read described update area identification information, and whether be the described second bios program memory block according to the bios program memory block that the current guiding electronic equipment of described update area identification information judgment successfully starts.
6, as claim 4 or 5 described methods, it is characterized in that, after described step c, also comprise step:
D, removing update area identification information.
7, a kind of electronic equipment, this electronic equipment comprises a central processing unit, it is characterized in that, also includes storer, switch element and basic input-output system BIOS switch unit, wherein:
Storer is provided with two bios program memory blocks, and described BIOS storage area stores is useful on the bios program that the guiding electronic equipment starts;
The BIOS switch unit is used for powering on or electronic equipment when resetting at electronic equipment, triggers the bios program memory block of electronic equipment from described storer and switches to from another bios program memory block guiding electronic equipment and start;
Switch element is used for powering on or electronic equipment when resetting in electronic equipment start, disconnects the partition address line of described central processing unit to described storer, and is used for after electronic equipment successfully starts the described partition address line of conducting.
8, electronic equipment as claimed in claim 7, it is characterized in that, described BIOS switch unit has first output connecting pin and second output connecting pin, power at electronic equipment and to reset or electronic equipment when resetting, the output state of described first output connecting pin is the enable signal output state, and described enable signal is used to control described switch element and disconnects the partition address line of described central processing unit to described storer;
After electronic equipment successfully started, the output state of described first output connecting pin was for forbidding the enable signal output state, and the described enable signal of forbidding is used to control the partition address line of the described central processing unit of described switch element conducting to described storer;
The output state of described second output connecting pin comprises two and described each bios program memory block corresponding address output state, power at electronic equipment and to reset or electronic equipment when resetting, the output state that triggers described second output connecting pin switches to another address output state by an address output state in described two address output states.
9, electronic equipment as claimed in claim 8 is characterized in that, after electronic equipment successfully started, the output state of second output connecting pin of described switch unit was a high-impedance state.
10, electronic equipment as claimed in claim 9 is characterized in that, described BIOS switch unit is a Programmable Logic Device.
As the described electronic equipment of claim 7 to 10, it is characterized in that 11, also comprise BIOS upgrading control subsystem, described upgrading control subsystem comprises:
First loading unit is used for when electronic equipment being carried out BIOS when upgrading, and the bios program that will be used to upgrade is loaded into another bios program memory block outside the bios program memory block that current guiding electronic equipment starts;
Judging unit after electronic equipment restarts successfully, judges whether the bios program memory block that is used to when restarting guide electronic equipment to start is described another bios program memory block and generates the corresponding judgment result;
Second loading unit, be used for when the judged result of described judging unit when being, be used for guiding the bios program of the bios program memory block that electronic equipment starts to be loaded into another bios program memory block outside this bios program memory block during with described restarting.
12, electronic equipment as claimed in claim 11 is characterized in that, described upgrading control subsystem also comprises:
The updating result output unit is used in described judgment unit judges result when being, the outputting BIOS successful information of upgrading, in described judgment unit judges result for not the time, the unsuccessful information of outputting BIOS upgrading.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100270176A CN100501679C (en) | 2007-02-27 | 2007-02-27 | Electric device |
| PCT/CN2007/071405 WO2008104117A1 (en) | 2007-02-27 | 2007-12-29 | An electronic equipment, a starting method thereof and a method and device for upgrading bios |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100270176A CN100501679C (en) | 2007-02-27 | 2007-02-27 | Electric device |
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| CN101017441A true CN101017441A (en) | 2007-08-15 |
| CN100501679C CN100501679C (en) | 2009-06-17 |
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| CNB2007100270176A Active CN100501679C (en) | 2007-02-27 | 2007-02-27 | Electric device |
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| CN (1) | CN100501679C (en) |
| WO (1) | WO2008104117A1 (en) |
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| CN100501679C (en) | 2009-06-17 |
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