CN110413092A - It is a kind of prevent RTC remove after system Auto Power On method and apparatus - Google Patents
It is a kind of prevent RTC remove after system Auto Power On method and apparatus Download PDFInfo
- Publication number
- CN110413092A CN110413092A CN201910570231.9A CN201910570231A CN110413092A CN 110413092 A CN110413092 A CN 110413092A CN 201910570231 A CN201910570231 A CN 201910570231A CN 110413092 A CN110413092 A CN 110413092A
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- signal
- auto power
- rtc
- booting
- powers
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004590 computer program Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
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- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
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Abstract
It is proposed by the present invention it is a kind of prevent RTC from removing after system Auto Power On method, comprising: after AC is powered on, shielding triggering mainboard powers on the signal and starting key of booting；Judge that triggering mainboard powers on whether the signal of booting is high level, if so, issuing forced shutdown instruction, powers on the signal of booting if not, cancelling shielding triggering mainboard and starting key and wait power-on instruction.The phenomenon that present invention effectively avoids button cell not enough power supply or out of power, and clear CMOS powers on Auto Power On later.
Description
Technical field
The present invention relates to field of computer technology, and system is opened automatically after more particularly to one kind prevents RTC from removing
The method and apparatus of machine.
Background technique
There are a button cell and a jump cap to be used to that CMOS state is arranged in server master board design, works as button
When battery is in place and electricity is sufficient, RTC register internal numeric can be saved by stablizing.But when not enough power supply occurs in button cell
Or when using jump cap progress CMOS clear operation, RTC register internal numeric can be fallen clearly, power on certainly so as to cause mainboard AC
Dynamic booting.In the different demands of client, after RTC register is removed, some requirement server master boards can Auto Power On, have
Requirement server master board be unable to Auto Power On.
In the design of existing server master board, after carrying out clear CMOS operation using jump cap, RTC register can be removed；
AC is powered on again, and in the case where not pressing power button, server master board understands Auto Power On into system.Only mainboard is run to
RTC register can be reset after setup automatically, just can guarantee that next AC powers on the phenomenon that being not in Auto Power On.
Meanwhile under the interface BIOS setup, startup item is revised as open state, each AC will appear certainly after powering on
The phenomenon that dynamic booting.
Both the above situation will cause on mainboard AC when button cell is out of power or the maloperation of the interface setup
After electricity the phenomenon that Auto Power On.For the demand of mainboard not Auto Power On after requiring RTC register to remove, existing technology can not
Meet the requirement.
Summary of the invention
In view of the above problems, the purpose of the present invention is to provide it is a kind of prevent RTC remove after system Auto Power On method
And equipment, for solving maloperation under button cell is out of power or the interface setup, there is the phenomenon that Auto Power On after powering in AC.
The present invention to achieve the above object, is achieved through the following technical solutions: system is opened automatically after one kind prevents RTC from removing
The method of machine, comprising:
After AC is powered on, shielding triggering mainboard powers on the signal and starting key of booting；
Judge that triggering mainboard powers on whether the signal of booting is high level, if so, forced shutdown instruction is issued, if
It is no, cancel shielding triggering mainboard and powers on the signal of booting and starting key and wait power-on instruction.
Further, the shielding triggering mainboard powers on the signal of booting and starting key includes:
CPLD default setting shields SLPS3/SLPS4 signal, and by the PWRBTN signal screen from starting key and BMC
It covers.
Further, described to judge that triggering mainboard powers on whether the signal of booting is that high level includes:
Monitor whether SLPS3/SLPS4 signal is high level.
Further, the sending forced shutdown, which instructs, includes:
When CPLD detects that SLPS3/SLPS4 is high level, forced shutdown instruction is sent by PWRBTN signal, PCH connects
After receiving the instruction, power-off operation is executed, to drag down SLPS3/SLPS4 signal.
Further, the cancellation shielding triggering mainboard powers on the signal of booting and starting key includes:
CPLD cancels shielding SLPS3/SLPS4 signal and PWRBTN signal.
Further, the forced shutdown instruction specifically: Shi Changwei 6 seconds low level PWRBTN signals.
Further, when CPLD detects that SLPS3/SLPS4 signal is for high level, CPLD automatically records AC and powers on to be opened automatically
Machine event, and user is informed by BMC.
Correspondingly, the invention also discloses it is a kind of prevent RTC remove after system Auto Power On equipment, comprising: memory,
For storing computer program；
Processor realizes system after preventing RTC from removing as described in any one above when for executing the computer program
The step of method of Auto Power On.
The prior art is compared, the beneficial effects of the invention are that: system is automatic after preventing RTC from removing the present invention provides one kind
The method and apparatus of booting shields SLPS3/SLPS4 signal by using CPLD, and executes the finger of forced shutdown by CPLD
It enables, the phenomenon that AC powers on Auto Power On can be effectively avoided；CPLD is detected the presence of after AC powers on Auto Power On phenomenon, record
Auto Power On event, and user is reported to by BMC, help to find and solve the problems, such as in time.So the present invention is effectively kept away
The phenomenon that exempting from button cell not enough power supply or out of power, and powering on Auto Power On after clear CMOS.
It can be seen that compared with prior art, the present invention implementing with substantive distinguishing features outstanding and significant progress
Beneficial effect be also obvious.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Attached drawing 1 is flow chart of the method for the present invention.
Attached drawing 2 is starting key signal schematic representation of the invention.
Specific embodiment
It explains with reference to the accompanying drawing to a specific embodiment of the invention.
Startup item, directly booting after AC is powered on, main reason is that PCH can be automatic are modified under the clear interface CMOS and setup
SLPS3 and SLPS4 signal is issued, mainboard CPLD after receiving SLPS3/SLPS4 signal, move by the booting that powers on that can trigger mainboard
Make, so as to cause mainboard Auto Power On.
Occurs Auto Power On phenomenon after powering in order to avoid AC, present embodiments providing one kind prevents system after RTC removing
The method and apparatus of Auto Power On is controlled using the signal that CPLD carries out server master board.SLPS3/SLPS4 is shielded using CPLD
Signal, even if PCH issues the two signals, CPLD will not trigger other movements, to guarantee that mainboard will not power on booting.
It is as shown in Figure 1 and Figure 2 it is a kind of prevent RTC remove after system Auto Power On method, specifically include:
After AC is powered on and CPLD can work normally, CPLD default setting shields SLPS3/SLPS4 signal, and will be from opening
The PWRBTN signal shielding of machine key and BMC prevents in this process due to the artificial caused maloperation that is actively switched on.
CPLD detects SLPS3/SLPS4 signal, if SLPS3/SLPS4 signal is high level, meeting after AC is powered at this time
There is Auto Power On；But because CPLD has shielded SLPS3/SLPS4, it not will lead to and power on booting, CPLD is recorded on AC
Electric Auto Power On event, and record and case study the phenomenon that inform user by BMC, carry out event.If detected
SLPS3/SLPS4 signal is low level, then is not in Auto Power On phenomenon after AC is powered at this time.
When CPLD detects that SLPS3/SLPS4 is high level, forced shutdown instruction is sent by PWRBTN signal, PCH connects
After receiving the instruction, power-off operation is executed, to drag down SLPS3/SLPS4 signal.
CPLD continues to monitor SLPS3/SLPS4 signal, if SLPS3/SLPS4 signal is still after sending forced shutdown instruction
For high level, then continue to send forced shutdown instruction；If SLPS3/SLPS4 signal is low level, illustrate forced shutdown success.
After CPLD detects forced shutdown success, cancel PWRBTN signal of the shielding from starting key and BMC, and cancel
Shield the SLPS3/SLPS4 signal from PCH.At this point, mainboard can boot up operation by starting key or BMC, it is real
The normal boot-strap of existing mainboard powers on.
Correspondingly, the invention also discloses it is a kind of prevent RTC remove after system Auto Power On equipment, comprising: memory,
For storing computer program；
Processor realizes system after preventing RTC from removing as described in any one above when for executing the computer program
The step of method of Auto Power On.
With reference to the drawings and specific embodiments, the invention will be further described.It should be understood that these embodiments are merely to illustrate
The present invention rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, this field
Technical staff can make various changes or modifications the present invention, and such equivalent forms equally fall within range defined herein.
Claims (8)
1. it is a kind of prevent RTC remove after system Auto Power On method characterized by comprising
After AC is powered on, shielding triggering mainboard powers on the signal and starting key of booting；
Judge that triggering mainboard powers on whether the signal of booting is high level, if so, forced shutdown instruction is issued, if not, taking
The shielding triggering mainboard that disappears powers on the signal of booting and starting key and waits power-on instruction.
2. it is according to claim 1 prevent RTC remove after system Auto Power On method, which is characterized in that the shielding
Triggering mainboard powers on the signal of booting and starting key includes:
CPLD default setting shields SLPS3/SLPS4 signal, and by the PWRBTN signal shielding from starting key and BMC.
3. it is according to claim 1 prevent RTC remove after system Auto Power On method, which is characterized in that the judgement
Triggering mainboard powers on whether the signal of booting is that high level includes:
Monitor whether SLPS3/SLPS4 signal is high level.
4. it is according to claim 1 prevent RTC remove after system Auto Power On method, which is characterized in that the sending
Forced shutdown instructs
When CPLD detects that SLPS3/SLPS4 is high level, forced shutdown instruction is sent by PWRBTN signal, PCH is received
After the instruction, power-off operation is executed, to drag down SLPS3/SLPS4 signal.
5. it is according to claim 1 prevent RTC remove after system Auto Power On method, which is characterized in that the cancellation
Shielding triggering mainboard powers on the signal of booting and starting key includes:
CPLD cancels shielding SLPS3/SLPS4 signal and PWRBTN signal.
6. it is according to claim 1 or 4 prevent RTC from removing after system Auto Power On method, which is characterized in that it is described strong
Shutdown command processed specifically: Shi Changwei 6 seconds low level PWRBTN signals.
7. it is according to claim 3 prevent RTC remove after system Auto Power On method, it is characterised in that: when CPLD examine
SLPS3/SLPS4 signal, which is measured, as high level is, CPLD automatically records AC and powers on Auto Power On event, and is informed and used by BMC
Family.
8. it is a kind of prevent RTC remove after system Auto Power On equipment characterized by comprising
Memory, for storing computer program；
Processor is realized when for executing the computer program after preventing RTC from removing as described in any one of claim 1 to 7
The step of method of system Auto Power On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910570231.9A CN110413092B (en) | 2019-06-27 | 2019-06-27 | Method and equipment for preventing automatic system startup after RTC (real time clock) is cleared |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910570231.9A CN110413092B (en) | 2019-06-27 | 2019-06-27 | Method and equipment for preventing automatic system startup after RTC (real time clock) is cleared |
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| CN110413092A true CN110413092A (en) | 2019-11-05 |
| CN110413092B CN110413092B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910570231.9A Active CN110413092B (en) | 2019-06-27 | 2019-06-27 | Method and equipment for preventing automatic system startup after RTC (real time clock) is cleared |
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| CN106200847A (en) * | 2016-08-03 | 2016-12-07 | 浪潮电子信息产业股份有限公司 | A kind of method that ARM platform realizes Clear CMOS function |
| CN108958448A (en) * | 2017-05-22 | 2018-12-07 | 鸿富锦精密工业(武汉)有限公司 | Mainboard electrifying control circuit |
| CN109446001A (en) * | 2018-10-17 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of control method and system of server switching on and shutting down |
| CN109739327A (en) * | 2018-12-27 | 2019-05-10 | 郑州云海信息技术有限公司 | A kind of server batch removes CMOS device and method |
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2019
- 2019-06-27 CN CN201910570231.9A patent/CN110413092B/en active Active
Patent Citations (7)
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| CN101359298A (en) * | 2008-09-26 | 2009-02-04 | 华硕电脑股份有限公司 | Method for removing internal memory with BIOS and computer system thereof |
| CN102221864A (en) * | 2010-04-15 | 2011-10-19 | 研祥智能科技股份有限公司 | Computer, and computer startup management system and method thereof |
| CN104536551A (en) * | 2014-11-18 | 2015-04-22 | 合肥联宝信息技术有限公司 | Method and device for clearing away information on complementary metal oxide semiconductor (CMOS) |
| CN106200847A (en) * | 2016-08-03 | 2016-12-07 | 浪潮电子信息产业股份有限公司 | A kind of method that ARM platform realizes Clear CMOS function |
| CN108958448A (en) * | 2017-05-22 | 2018-12-07 | 鸿富锦精密工业(武汉)有限公司 | Mainboard electrifying control circuit |
| CN109446001A (en) * | 2018-10-17 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of control method and system of server switching on and shutting down |
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| CN110413092B (en) | 2021-06-01 |
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