CN1134736C - Device for preventing BIOS data assess failure and its computer equipment - Google Patents
Device for preventing BIOS data assess failure and its computer equipment Download PDFInfo
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- CN1134736C CN1134736C CNB991231899A CN99123189A CN1134736C CN 1134736 C CN1134736 C CN 1134736C CN B991231899 A CNB991231899 A CN B991231899A CN 99123189 A CN99123189 A CN 99123189A CN 1134736 C CN1134736 C CN 1134736C
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Abstract
The present invention provides a device capable of preventing data access failures of BIOS. When BIOS fails to access data, the BIOS device is automatically switched to the other standby BIOS device by a user or a circuit system; therefore, adoption of a software program to replace the BIOS device or disassembly of a machine to directly replace the BIOS device is not needed for reparation, and thus, a further protective effect can be achieved. The present invention utilizes the device capable of preventing data access failures of BIOS to form a computer device with the capability of backup of BIOS; thus, when BIOS fails to access the data, a spare BIOS device can be used to replace the original BIOS device by adjusting a switch.
Description
The present invention is relevant for a kind of device that prevents BIOS data access failure, and this device is applied in the computer apparatus and the computer apparatus with back-up BIOS that forms.
No matter present computer apparatus is laptop or desktop computer, and employed BIOS device all adopts the design of flash memory (flash memory).If but during the flash memory access failure, the BIOS data can't access will make system move.When suffering this type of problem, general means to save the situation has: reach action for the flash memory device with software program, or, the teardown of engine is directly changed flash memory, yet this dual mode all bothers completely, and for the user who generally computer system very is not familiar with, the general above-mentioned mode of remedying of execution that is difficult to.
In view of this, an object of the present invention is to provide a kind of device of the BIOS of preventing data access failure, to reach further protection effect.
Another object of the present invention is to utilize the device of the above-mentioned BIOS of preventing data access failure, constitutes a kind of computer apparatus with back-up BIOS, when it is failed in the BIOS data access, and promptly can be as long as adjust a switch by access data in the BIOS device of backup.
For achieving the above object, the present invention proposes a kind of computer apparatus with back-up BIOS, can prevent the failure of BIOS data read, and this computer apparatus comprises at least: a computer body; One host computer system; An one predetermined BIOS device and a standby BIOS device, both are all and be connected on the data bus and address bus of described host computer system; And a device for selection controlling, utilize a selector switch with select to enable described BIOS device one of them, for described host computer system to one of them read/write data of described BIOS device; Wherein, when described host computer system is started shooting, described selector switch in the described device for selection controlling is in first state, and described predetermined BIOS device is enabled to open for described host computer system read/write data, when the data of described predetermined BIOS device can't read smoothly, then described selector switch is switched to second state, and described standby BIOS device is enabled to open for described host computer system read/write data; Described device for selection controlling comprises: one first snubber assembly and one second snubber assembly, both input ends all couple the access control signal and the BIOS enable signal of described host computer system output; When described selector switch is in described first state, described first snubber assembly starts, and described second snubber assembly cuts out, the access control signal and the BIOS enable signal of then described host computer system output export described predetermined BIOS device to by described first snubber assembly, and described predetermined BIOS device is enabled to open; When described selector switch is in described second state, described second snubber assembly starts, and described first snubber assembly cuts out, the access control signal and the BIOS enable signal of then described host computer system output export described standby BIOS device to by described second snubber assembly, and described standby BIOS device is enabled to open.
And the host computer system in the above-mentioned computer apparatus, predetermined BIOS device and a standby BIOS device promptly constitute the device that the present invention can prevent the failure of BIOS data access.
A kind of device that prevents the failure of BIOS data read of the present invention comprises: a main circuit system at least; An one predetermined BIOS device and a standby BIOS device, both are all and be connected on the data bus and address bus of described main circuit system; And a device for selection controlling, utilize a selector switch with select to enable described BIOS device one of them, for described main circuit system to one of them read/write data of described BIOS device; Wherein, when main circuit system begins to start, described selector switch in the described device for selection controlling is in first state, and described predetermined BIOS device is enabled to open for described main circuit system read/write data, when the data of described predetermined BIOS device can't read smoothly, then described selector switch is switched to second state, and described standby BIOS device is enabled to open for described main circuit system read/write data; Described device for selection controlling comprises: one first snubber assembly and one second snubber assembly, both input ends all couple the access control signal and the BIOS enable signal of described main circuit system output; When described selector switch is in described first state, described first snubber assembly starts, and described second snubber assembly cuts out, the access control signal and the BIOS enable signal of then described main circuit system output export described predetermined BIOS device to by described first snubber assembly, and described predetermined BIOS device is enabled to open; When described selector switch is in described second state, described second snubber assembly starts, and described first snubber assembly cuts out, the access control signal and the BIOS enable signal of then described main circuit system output export described standby BIOS device to by described second snubber assembly, and described standby BIOS device is enabled to open.
Above-mentioned computer apparatus with back-up BIOS, when BIOS device access failure, it is replaceable BIOS device that the user only needs the change-over switch position, need not disassemble a machine or comes to remedy with software bothersomely.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly with reference to accompanying drawing, elaborates.
Fig. 1 is that the present invention can prevent that the device of BIOS data access failure is applied to constitute in the computer system circuit diagram of the embodiment with back-up BIOS computer apparatus.
Wherein:
The 10-11:BIOS device; 20: device for selection controlling; 14-15: impact damper;
21-22: snubber assembly.
Fig. 1 is the circuit diagram that the present invention can prevent an embodiment of the device that the BIOS data access is failed.
In Fig. 1, two flash memory device levels are respectively as predetermined BIOS device 10 and standby BIOS device 11, and (XD0～XD7) (SA0～SA16) couple respectively (and company) is to the data bus and the address bus of the main circuit system at its place with the address wire end points for both data line end points.In this embodiment, predetermined BIOS device 10 and standby BIOS device 11 all use flash memory IC-28F010.Have only when the 1st pin of predetermined BIOS device 10 receives the enable signal VPPA of noble potential " H ", flash memory IC-28F010 just can be activated, and complies with the access control signal (CEA, OEA and WEA) that is received and make the access action of signal.Wherein above-mentioned control signal CEA, OEA and WEA are respectively coupled to the chip enable end (CE of flash memory IC-28F010, the 22nd pin), output enable end (OE, the 24th pin) and write-enable end (WE, the 31st pin).
In like manner, have only when the 1st pin of standby BIOS device 11 receives the enable signal VPPB of noble potential " H ", flash memory IC-28F010 just can be activated, and complies with the access control signal (CEB, OEB and WEB) that is received and make the access action of signal.Wherein above-mentioned control signal CEB, OEB and WEB are respectively coupled to the chip enable end (CE of flash memory IC-28F010, the 22nd pin), output just can be held (OE, the 24th pin) and write-enable end (WE, the 31st pin).
And above-mentioned enable signal VPPA and VPPB can not be in the shape energy of " H " together, so that above-mentioned main circuit system only can carry out the action of access to a BIOS device.Device for selection controlling 20 among Fig. 1, be utilize a selector switch SW with select to enable above-mentioned BIOS device 10,11 one of them, for above-mentioned main circuit system to one of them read/write data of above-mentioned BIOS device.
Above-mentioned device for selection controlling 20 comprises: first snubber assembly 21 and second snubber assembly 22, both input ends all couple the access control signal and the BIOS enable signal of above-mentioned main circuit system output.In this embodiment, snubber assembly 21 and 22 all adopts IC-244, and when its 1st, 19 pin received positive voltage Vcc supply, then the signal of input end (the 2nd, 4,6,8 pin) just can be sent by output terminal (the 18th, 16,14,12 pin).
IC-244 input end (the 2nd, 4,6,8 pin) couples respectively from the ROM (read-only memory) of above-mentioned main circuit system selects control signal ROMCS, the memory read number of winning the confidence MEMR, storer to write signal MEMW and enable signal VPPEN.
(be in first state) when above-mentioned selector switch SW switches to the Q end points, above-mentioned first snubber assembly 21 starts because of the 1st, 19 pins have the Vcc service voltage, and above-mentioned second snubber assembly 22 cuts out because of the 1st, 19 pins are grounded.So access control signal ROMCS, the MEMR of above-mentioned main circuit system output and MEMW and BIOS enable signal VPPEN be the above-mentioned predetermined BIOS device 10 that arrives by 21 outputs of above-mentioned first snubber assembly, and above-mentioned predetermined BIOS device 10 is enabled to open.Wherein, BIOS enable signal VPPEN can export 1st pin of VPPA to above-mentioned predetermined BIOS device 10 more again behind the impact damper (emitter follower) 14 that a BJT transistor constitutes.
In like manner, (be in second state) when above-mentioned selector switch SW switches to the P end points, above-mentioned second snubber assembly 22 starts because of the 1st, 19 pins have the Vcc service voltage, and above-mentioned first snubber assembly 21 cuts out because of the 1st, 19 pins are grounded.So access control signal ROMCS, the MEMR of above-mentioned main circuit system output and MEMW and BIOS enable signal VPPEN be the above-mentioned standby BIOS device 11 that arrives by 22 outputs of above-mentioned second snubber assembly, and above-mentioned standby BIOS device 11 is enabled to open.Wherein, BIOS enable signal VPPEN can export 1st pin of VPPB to above-mentioned predetermined BIOS device 10 more again behind the impact damper (emitter follower) 15 that a BJT transistor constitutes.
Cooperate above-mentioned explanation as can be known by device shown in Figure 1, when main circuit during to predetermined BIOS device 10 access failures, the user can be about to above-mentioned selector switch certainly and switch to the P point, or judge voluntarily and above-mentioned selector switch is switched to the P point by main circuit, replace default BIOS device to use standby BIOS device 11.After many these one deck protection, the measure that the user can not remedy because of BIOS device access failure with making or have much ado.
The device of the BIOS of preventing data access failure shown in Figure 1 is applied to computer system, is the computer apparatus with back-up BIOS, can prevent the failure of BIOS data read.This computer apparatus comprises at least: a computer body; One host computer system (for example chipset circuit); An one predetermined BIOS device and a standby BIOS device, both are all and be connected on the data bus and address bus of above-mentioned host computer system; And a device for selection controlling, utilize a selector switch with select to enable above-mentioned BIOS device one of them, for above-mentioned host computer system to one of them read/write data of above-mentioned BIOS device.
Its major function feature and line configuring, the existing detailed description in detail given unnecessary details so no longer give pleonasm at this in the circuit of Fig. 1 embodiment.
When the above-mentioned host computer system in the computer apparatus of the present invention is started shooting, above-mentioned selector switch in the above-mentioned device for selection controlling is in first state, and above-mentioned predetermined BIOS device is enabled to open for above-mentioned host computer system read/write data, when the data of above-mentioned predetermined BIOS device can't read smoothly, then above-mentioned selector switch is switched to second state, and above-mentioned standby BIOS device is enabled to open for above-mentioned host computer system read/write data.So the user BIOS device access failure the time, the position that only needs change-over switch is replaceable BIOS device, need not disassemble a machine or carries out and the measure remedied with software with making or have much ado.
Though the present invention is disclosed with a preferred embodiment; so be not to be used to limit the present invention, those skilled in the art, without departing from the spirit and scope of the present invention; can make many changes and modification, so protection scope of the present invention should be limited by accompanying Claim.
Claims (8)
1. the computer apparatus with back-up BIOS can prevent the failure of BIOS data read, and this computer apparatus comprises at least:
One computer body;
One host computer system;
An one predetermined BIOS device and a standby BIOS device, both are all and be connected on the data bus and address bus of described host computer system; And
One device for selection controlling, utilize a selector switch with select to enable described BIOS device one of them, for described host computer system to one of them read/write data of described BIOS device;
It is characterized in that:
When described host computer system is started shooting, described selector switch in the described device for selection controlling is in first state, and described predetermined BIOS device is enabled to open for described host computer system read/write data, when the data of described predetermined BIOS device can't read smoothly, then described selector switch is switched to second state, and described standby BIOS device is enabled to open for described host computer system read/write data;
Described device for selection controlling comprises: one first snubber assembly and one second snubber assembly, both input ends all couple the access control signal and the BIOS enable signal of described host computer system output;
When described selector switch is in described first state, described first snubber assembly starts, and described second snubber assembly cuts out, the access control signal and the BIOS enable signal of then described host computer system output export described predetermined BIOS device to by described first snubber assembly, and described predetermined BIOS device is enabled to open;
When described selector switch is in described second state, described second snubber assembly starts, and described first snubber assembly cuts out, the access control signal and the BIOS enable signal of then described host computer system output export described standby BIOS device to by described second snubber assembly, and described standby BIOS device is enabled to open.
2. computer apparatus as claimed in claim 1 is characterized in that, described two BIOS devices are the flash memory device.
3. computer apparatus as claimed in claim 2 is characterized in that, described flash memory device is IC28F010.
4. computer apparatus as claimed in claim 1 is characterized in that,, when the data of described predetermined BIOS device can't read smoothly, described selector switch can switch to second state with it by the user.
5. device that can prevent BIOS data read failure comprises at least:
One main circuit system;
An one predetermined BIOS device and a standby BIOS device, both are all and be connected on the data bus and address bus of described main circuit system; And
One device for selection controlling, utilize a selector switch with select to enable described BIOS device one of them, for described main circuit system to one of them read/write data of described BIOS device;
It is characterized in that:
When main circuit system begins to start, described selector switch in the described device for selection controlling is in first state, and described predetermined BIOS device is enabled to open for described main circuit system read/write data, when the data of described predetermined BIOS device can't read smoothly, then described selector switch is switched to second state, and described standby BIOS device is enabled to open for described main circuit system read/write data;
Described device for selection controlling comprises: one first snubber assembly and one second snubber assembly, both input ends all couple the access control signal and the BIOS enable signal of described main circuit system output;
When described selector switch is in described first state, described first snubber assembly starts, and described second snubber assembly cuts out, the access control signal and the BIOS enable signal of then described main circuit system output export described predetermined BIOS device to by described first snubber assembly, and described predetermined BIOS device is enabled to open;
When described selector switch is in described second state, described second snubber assembly starts, and described first snubber assembly cuts out, the access control signal and the BIOS enable signal of then described main circuit system output export described standby BIOS device to by described second snubber assembly, and described standby BIOS device is enabled to open.
6. the device that prevents the failure of BIOS data read as claimed in claim 5 is characterized in that described two BIOS devices are the flash memory device.
7. the device that prevents the failure of BIOS data read as claimed in claim 6 is characterized in that described flash memory device is IC28F010.
8. the device that prevents the failure of BIOS data read as claimed in claim 5 is characterized in that when the data of described predetermined BIOS device can't read smoothly, described selector switch can switch to one second state with it by the user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991231899A CN1134736C (en) | 1999-10-19 | 1999-10-19 | Device for preventing BIOS data assess failure and its computer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991231899A CN1134736C (en) | 1999-10-19 | 1999-10-19 | Device for preventing BIOS data assess failure and its computer equipment |
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| Publication Number | Publication Date |
|---|---|
| CN1293407A CN1293407A (en) | 2001-05-02 |
| CN1134736C true CN1134736C (en) | 2004-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991231899A Expired - Fee Related CN1134736C (en) | 1999-10-19 | 1999-10-19 | Device for preventing BIOS data assess failure and its computer equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397348C (en) * | 2004-08-27 | 2008-06-25 | 华擎科技股份有限公司 | Method and apparatus for switching system module |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412795C (en) * | 2003-04-15 | 2008-08-20 | 华邦电子股份有限公司 | Method of starting computer system using memory card |
| CN100357891C (en) * | 2003-11-10 | 2007-12-26 | 华邦电子股份有限公司 | Method for starting computer using a basic input /output system memory and structure |
| CN101425270B (en) * | 2007-10-31 | 2011-01-19 | 冠捷投资有限公司 | LCD apparatus and LCD apparatus operation control method |
| CN101458647B (en) * | 2007-12-12 | 2012-11-21 | 鸿富锦精密工业（深圳）有限公司 | Double-BIOS circuit |
| CN105843712B (en) * | 2016-03-31 | 2020-02-21 | 联想(北京)有限公司 | Data transmission method and electronic equipment |
-
1999
- 1999-10-19 CN CNB991231899A patent/CN1134736C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397348C (en) * | 2004-08-27 | 2008-06-25 | 华擎科技股份有限公司 | Method and apparatus for switching system module |
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| CN1293407A (en) | 2001-05-02 |
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