CN107203243A - A kind of device and method of management system clock - Google Patents
A kind of device and method of management system clock Download PDFInfo
- Publication number
- CN107203243A CN107203243A CN201710372391.3A CN201710372391A CN107203243A CN 107203243 A CN107203243 A CN 107203243A CN 201710372391 A CN201710372391 A CN 201710372391A CN 107203243 A CN107203243 A CN 107203243A
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- CN
- China
- Prior art keywords
- system clock
- signal
- management controller
- clock
- pass filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
- G06F1/14—Time supervision arrangements, e.g. real time clock
Abstract
The invention provides a kind of device and method of management system clock, the device, including：Low pass filter and Management Controller；The low pass filter is connected with system clock and the Management Controller respectively；The low pass filter, the clock signal of system exported for system clock described in real-time reception, and processing is filtered to the clock signal of system, export filtered signal；The Management Controller, the filtered signal exported for low pass filter described in real-time reception, judges whether the magnitude of voltage of the filtered signal is normal, if, then determine that the system clock is normal, otherwise, it determines the system clock breaks down.The invention provides a kind of device and method of management system clock, it is capable of detecting when whether system clock breaks down.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of device and method of management system clock.
Background technology
System clock is very important part in server system, in the server to be used for being CPU, PCH more
(Platform Controller Hub, integrated south bridge), PCIE grooves, BMC (Baseboard Management
Controller, baseboard management controller) etc. equipment provide clock signal.When system clock can not be exported normally, server
Meeting can not normal work.
Do not detect the scheme for the system clock being currently running also in the prior art.
The content of the invention
The embodiments of the invention provide a kind of device and method of management system clock, whether system clock is capable of detecting when
Break down.
In a first aspect, the embodiments of the invention provide a kind of device of management system clock, including：
Low pass filter and Management Controller；
The low pass filter is connected with system clock and the Management Controller respectively；
The low pass filter, the clock signal of system exported for system clock described in real-time reception, and to the system
System clock signal is filtered processing, exports filtered signal；
The Management Controller, the filtered signal exported for low pass filter described in real-time reception judges
Whether the magnitude of voltage of the filtered signal is normal, if it is, determining that the system clock is normal, otherwise, it determines described
System clock breaks down.
Further, the Management Controller, including：Storage unit, analog-digital converter and detection unit；
The storage unit, for preserving the critical field pre-set；
The analog-digital converter, the filtered signal exported for low pass filter described in real-time reception, by institute
State filtered signal and be converted to data signal, export the data signal；
The detection unit, the data signal exported for analog-digital converter described in real-time reception, judges the number
Whether the magnitude of voltage of word signal is in the critical field, if it is, determining that the system clock is normal, otherwise, it determines institute
System clock is stated to break down.
Further, the Management Controller, is further used for after the determination system clock breaks down,
Reset signal is sent to the system clock, so that the system clock resets.
Further, the Management Controller, is further used for after the determination system clock breaks down,
To the system clock send configuration signal, the system that the system clock exports assigned frequency is controlled by the configuration signal
Clock signal.
Further, the device further comprises：Alarm unit；
The Management Controller, is further used for after the determination system clock breaks down, to the report
Alert unit sends error message；
The alarm unit, for receiving the error message that the Management Controller is sent, believes according to the mistake
Breath sends alarm signal.
Second aspect, the embodiments of the invention provide in a kind of utilization first aspect during any described apparatus management system
The method of clock, including：
The clock signal of system of low pass filter real-time reception system clock output, and the clock signal of system is carried out
Filtering process, exports filtered signal；
The filtered signal that low pass filter described in Management Controller real-time reception is exported, judges after the filtering
Signal magnitude of voltage it is whether normal, if it is, determining that the system clock is normal, otherwise, it determines the system clock is sent out
Raw failure.
Further, when the Management Controller, including：When storage unit, analog-digital converter and detection unit；
Further comprise：The storage unit preserves the critical field pre-set；
The filtered signal that low pass filter described in the Management Controller real-time reception is exported, judges the filter
Whether the magnitude of voltage of the signal after ripple is normal, if it is, determining that the system clock is normal, otherwise, it determines during the system
Clock breaks down, including：
The filtered signal that low pass filter described in the analog-digital converter real-time reception is exported, by the filtering
Signal afterwards is converted to data signal, exports the data signal；
The data signal that analog-digital converter described in the detection unit real-time reception is exported, judges the data signal
Magnitude of voltage whether in the critical field, if it is, determining that the system clock is normal, otherwise, it determines the system
Clock breaks down.
Further, after the determination system clock breaks down, further comprise：
The Management Controller sends reset signal to the system clock, so that the system clock resets.
Further, after the determination system clock breaks down, further comprise：
The Management Controller controls the system to the system clock send configuration signal by the configuration signal
Clock exports the clock signal of system of assigned frequency.
Further, when described device further comprises alarm unit；
After the determination system clock breaks down, further comprise：
The Management Controller sends error message to the alarm unit；
The alarm unit receives the error message that the Management Controller is sent, and is sent according to the error message
Alarm signal.
In embodiments of the present invention, processing is filtered to clock signal of system by low pass filter, controlled by managing
Device processed is detected to the magnitude of voltage of filtered signal, and then determines whether system clock breaks down.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of schematic diagram of the device for management system clock that one embodiment of the invention is provided；
Fig. 2 is the schematic diagram of the device for another management system clock that one embodiment of the invention is provided；
Fig. 3 is the schematic diagram of the device for another management system clock that one embodiment of the invention is provided；
Fig. 4 is a kind of flow chart of the method for management system clock that one embodiment of the invention is provided；
Fig. 5 is the flow chart of the method for another management system clock that one embodiment of the invention is provided.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, the embodiments of the invention provide a kind of device of management system clock, including：
Low pass filter 101 and Management Controller 102；
The low pass filter is connected with system clock and the Management Controller respectively；
The low pass filter, the clock signal of system exported for system clock described in real-time reception, and to the system
System clock signal is filtered processing, exports filtered signal；
The Management Controller, the filtered signal exported for low pass filter described in real-time reception judges
Whether the magnitude of voltage of the filtered signal is normal, if it is, determining that the system clock is normal, otherwise, it determines described
System clock breaks down.
In embodiments of the present invention, processing is filtered to clock signal of system by low pass filter, controlled by managing
Device processed is detected to the magnitude of voltage of filtered signal, and then determines whether system clock breaks down.
As shown in Fig. 2 in an embodiment of the present invention, the Management Controller 102, including：Storage unit 1021, modulus
Converter 1022 and detection unit 1023；
The storage unit 1021, for preserving the critical field pre-set；
The analog-digital converter 1022, the filtered signal exported for low pass filter described in real-time reception,
The filtered signal is converted into data signal, the data signal is exported；
The detection unit 1023, the data signal exported for analog-digital converter described in real-time reception, judges institute
The magnitude of voltage of data signal is stated whether in the critical field, if it is, determining that the system clock is normal, otherwise, really
The fixed system clock breaks down.
In embodiments of the present invention, corresponding critical field is set for clock signal of system, passes through analog-digital converter pair
Filtered signal carries out analog-to-digital conversion, is converted to data signal, is easy to detection unit to be detected, when not existing for data signal
When in the critical field, illustrate that the magnitude of voltage of filtered signal is abnormal, and then system clock failure can be determined.
In addition, the critical field can be between high level and low level.When system clock is normal, due to LPF
The filter action of device, the magnitude of voltage of data signal is between high level and low level.When system clock failure, system clock can
It can always export high level or export low level always, and then beyond the critical field.
In an embodiment of the present invention, the Management Controller, is further used for determining the system clock hair described
After raw failure, reset signal is sent to the system clock, so that the system clock resets.
In embodiments of the present invention, when system clock failure, by sending reset signal to system clock, it is to reset
System clock, realizes the reparation to system clock.
In an embodiment of the present invention, the Management Controller, is further used for determining the system clock hair described
After raw failure, to the system clock send configuration signal, the system clock output is controlled to refer to by the configuration signal
Determine the clock signal of system of frequency.
In embodiments of the present invention, when system clock failure, by system clock send configuration signal, reconfiguring
System clock so that system clock being capable of normal work.The system that the embodiment of the present invention can export for repair system clock
There is the situation of mistake in the frequency of clock signal.
In embodiments of the present invention, system clock can include：System clock source and clock buffer.System clock source will
Clock signal of system is sent to clock buffer, and clock signal of system is divided into multichannel by clock buffer, passes through clock buffer
The clock signal of system is provided for multiple clock terminals.Wherein, clock terminal refers to is set using each chip of clock signal of system
It is standby etc., such as CPU, PCH, PCIE device.The clock signal of system that low pass filter is received can also be slow from clock
Rush device.And the reset signal and/or configuration signal that Management Controller is sent can be sent to system clock source.
Based on the device shown in Fig. 1, as shown in figure 3, in an embodiment of the present invention, the device further comprises：Alarm
Unit 301；
The Management Controller, is further used for after the determination system clock breaks down, to the report
Alert unit sends error message；
The alarm unit 301, for receiving the error message that the Management Controller is sent, according to the mistake
Delivering alarm signal.
In embodiments of the present invention, by alarm unit custom system clock can be notified to break down, facilitates user to do
Go out subsequent treatment.Alarm unit can be also used for misregistration information, and show error message.
As shown in figure 4, when utilizing any one management system in the embodiment of the present invention the embodiments of the invention provide one kind
The method of the apparatus management system clock of clock, including：
Step 401：The clock signal of system of low pass filter real-time reception system clock output, and to the system clock
Signal is filtered processing, exports filtered signal；
Step 402：The filtered signal that low pass filter described in Management Controller real-time reception is exported, judges institute
Whether the magnitude of voltage for stating filtered signal is normal, if it is, performing step 403, otherwise, performs step 404；
Step 403：Management Controller determines that the system clock is normal；
Step 404：Management Controller determines that the system clock breaks down.
In an embodiment of the present invention, when the Management Controller, including：Storage unit, analog-digital converter and detection are single
When first；
Further comprise：The storage unit preserves the critical field pre-set；
The filtered signal that low pass filter described in the Management Controller real-time reception is exported, judges the filter
Whether the magnitude of voltage of the signal after ripple is normal, if it is, determining that the system clock is normal, otherwise, it determines during the system
Clock breaks down, including：
The filtered signal that low pass filter described in the analog-digital converter real-time reception is exported, by the filtering
Signal afterwards is converted to data signal, exports the data signal；
The data signal that analog-digital converter described in the detection unit real-time reception is exported, judges the data signal
Magnitude of voltage whether in the critical field, if it is, determining that the system clock is normal, otherwise, it determines the system
Clock breaks down.
In an embodiment of the present invention, after the determination system clock breaks down, further comprise：
The Management Controller sends reset signal to the system clock, so that the system clock resets.
In an embodiment of the present invention, after the determination system clock breaks down, further comprise：
The Management Controller controls the system to the system clock send configuration signal by the configuration signal
Clock exports the clock signal of system of assigned frequency.
In an embodiment of the present invention, when described device further comprises alarm unit；
After the determination system clock breaks down, further comprise：
The Management Controller sends error message to the alarm unit；
The alarm unit receives the error message that the Management Controller is sent, and is sent according to the error message
Alarm signal.
As shown in figure 5, the embodiments of the invention provide a kind of method of management system clock, including：
Step 501：Storage unit preserves the critical field pre-set.
Step 502：The clock signal of system of low pass filter real-time reception system clock output, and to clock signal of system
Processing is filtered, filtered signal is exported.
Step 503：The filtered signal of analog-digital converter real-time reception low pass filter output, by filtered signal
Be converted to data signal, output digit signals.
Step 504：The data signal of detection unit real-time reception analog-digital converter output, judges the magnitude of voltage of data signal
Whether in critical field, if it is, performing step 505, otherwise, step 506 is performed.
Step 505：Detection unit determines that system clock is normal.
Step 506：Detection unit determines that system clock breaks down, to system clock send configuration signal, by configuring
Whistle control system clock exports the clock signal of system of assigned frequency.
Each embodiment of the invention at least has the advantages that：
1st, in embodiments of the present invention, processing is filtered to clock signal of system by low pass filter, passes through management
Controller is detected to the magnitude of voltage of filtered signal, and then determines whether system clock breaks down.
2nd, in embodiments of the present invention, when system clock failure, by sending reset signal to system clock, to reset
System clock, realizes the reparation to system clock.
3rd, in embodiments of the present invention, when system clock failure, by system clock send configuration signal, matching somebody with somebody again
Put system clock so that system clock being capable of normal work.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Or operation makes a distinction with another entity or operation, and not necessarily require or imply exist between these entities or operation
Any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant be intended to it is non-
It is exclusive to include, so that process, method, article or equipment including a series of key elements not only include those key elements,
But also other key elements including being not expressly set out, or also include solid by this process, method, article or equipment
Some key elements.In the absence of more restrictions, by sentence, " including the key element that a 〃 " is limited is not arranged
Except also there is other identical factor in the process including the key element, method, article or equipment.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in the storage medium of embodied on computer readable, the program
Upon execution, the step of including above method embodiment is performed；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
It is last it should be noted that：Presently preferred embodiments of the present invention is the foregoing is only, the skill of the present invention is merely to illustrate
Art scheme, is not intended to limit the scope of the present invention.Any modification for being made within the spirit and principles of the invention,
Equivalent substitution, improvement etc., are all contained in protection scope of the present invention.
Claims (10)
1. a kind of device of management system clock, it is characterised in that including：
Low pass filter and Management Controller；
The low pass filter is connected with system clock and the Management Controller respectively；
The low pass filter, the clock signal of system exported for system clock described in real-time reception, and during to the system
Clock signal is filtered processing, exports filtered signal；
The Management Controller, the filtered signal exported for low pass filter described in real-time reception judges described
Whether the magnitude of voltage of filtered signal is normal, if it is, determining that the system clock is normal, otherwise, it determines the system
Clock breaks down.
2. device according to claim 1, it is characterised in that
The Management Controller, including：Storage unit, analog-digital converter and detection unit；
The storage unit, for preserving the critical field pre-set；
The analog-digital converter, the filtered signal exported for low pass filter described in real-time reception, by the filter
Signal after ripple is converted to data signal, exports the data signal；
The detection unit, the data signal exported for analog-digital converter described in real-time reception judges the numeral letter
Number magnitude of voltage whether in the critical field, if it is, determining that the system clock is normal, otherwise, it determines the system
System clock breaks down.
3. device according to claim 1, it is characterised in that
The Management Controller, is further used for after the determination system clock breaks down, during to the system
Clock sends reset signal, so that the system clock resets.
4. device according to claim 1, it is characterised in that
The Management Controller, is further used for after the determination system clock breaks down, during to the system
Clock send configuration signal, the clock signal of system of the system clock output assigned frequency is controlled by the configuration signal.
5. according to any described device in claim 1-4, it is characterised in that
Further comprise：Alarm unit；
The Management Controller, is further used for after the determination system clock breaks down, single to the alarm
Member sends error message；
The alarm unit, for receiving the error message that the Management Controller is sent, sends out according to the error message
Go out alarm signal.
6. a kind of method of any described apparatus management system clock in utilization claim 1-5, it is characterised in that including：
The clock signal of system of low pass filter real-time reception system clock output, and the clock signal of system is filtered
Processing, exports filtered signal；
The filtered signal that low pass filter described in Management Controller real-time reception is exported, judges the filtered letter
Number magnitude of voltage it is whether normal, if it is, determine that the system clock is normal, otherwise, it determines the system clock occur therefore
Barrier.
7. method according to claim 6, it is characterised in that
When the Management Controller, including：When storage unit, analog-digital converter and detection unit；
Further comprise：The storage unit preserves the critical field pre-set；
The filtered signal that low pass filter described in the Management Controller real-time reception is exported, judges after the filtering
Signal magnitude of voltage it is whether normal, if it is, determining that the system clock is normal, otherwise, it determines the system clock is sent out
Raw failure, including：
The filtered signal that low pass filter described in the analog-digital converter real-time reception is exported, will be described filtered
Signal is converted to data signal, exports the data signal；
The data signal that analog-digital converter described in the detection unit real-time reception is exported, judges the electricity of the data signal
Whether pressure value is in the critical field, if it is, determining that the system clock is normal, otherwise, it determines the system clock
Break down.
8. method according to claim 6, it is characterised in that
After the determination system clock breaks down, further comprise：
The Management Controller sends reset signal to the system clock, so that the system clock resets.
9. method according to claim 6, it is characterised in that
After the determination system clock breaks down, further comprise：
The Management Controller controls the system clock to the system clock send configuration signal by the configuration signal
Export the clock signal of system of assigned frequency.
10. according to any described method in claim 6-9, it is characterised in that
When described device further comprises alarm unit；
After the determination system clock breaks down, further comprise：
The Management Controller sends error message to the alarm unit；
The alarm unit receives the error message that the Management Controller is sent, and alarm is sent according to the error message
Signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372391.3A CN107203243A (en) | 2017-05-24 | 2017-05-24 | A kind of device and method of management system clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372391.3A CN107203243A (en) | 2017-05-24 | 2017-05-24 | A kind of device and method of management system clock |
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| Publication Number | Publication Date |
|---|---|
| CN107203243A true CN107203243A (en) | 2017-09-26 |
Family
ID=59905345
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710372391.3A Pending CN107203243A (en) | 2017-05-24 | 2017-05-24 | A kind of device and method of management system clock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223143A (en) * | 2010-04-16 | 2011-10-19 | 电信科学技术研究院 | Clock signal protective device, clock signal protective method and clock detection compensating circuit |
| CN102819477A (en) * | 2012-08-28 | 2012-12-12 | 曙光信息产业(北京)有限公司 | Board fault test method and fault test card |
| CN103077346A (en) * | 2012-12-20 | 2013-05-01 | 深圳国微技术有限公司 | Clock frequency detection based chip anti-attack system and method |
| CN103325352A (en) * | 2012-03-21 | 2013-09-25 | 韩国科亚电子股份有限公司 | Clock failure detection apparatus and method, and timing controller of liquid crystal display including the clock failure detection apparatus |
| US20150171834A1 (en) * | 2013-12-12 | 2015-06-18 | International Business Machines Corporation | Duty cycle adjustment with error resiliency |
-
2017
- 2017-05-24 CN CN201710372391.3A patent/CN107203243A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223143A (en) * | 2010-04-16 | 2011-10-19 | 电信科学技术研究院 | Clock signal protective device, clock signal protective method and clock detection compensating circuit |
| CN103325352A (en) * | 2012-03-21 | 2013-09-25 | 韩国科亚电子股份有限公司 | Clock failure detection apparatus and method, and timing controller of liquid crystal display including the clock failure detection apparatus |
| CN102819477A (en) * | 2012-08-28 | 2012-12-12 | 曙光信息产业(北京)有限公司 | Board fault test method and fault test card |
| CN103077346A (en) * | 2012-12-20 | 2013-05-01 | 深圳国微技术有限公司 | Clock frequency detection based chip anti-attack system and method |
| US20150171834A1 (en) * | 2013-12-12 | 2015-06-18 | International Business Machines Corporation | Duty cycle adjustment with error resiliency |
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Application publication date: 20170926 |