CN106919464A - A kind of server board reset protective device and method - Google Patents
A kind of server board reset protective device and method Download PDFInfo
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- CN106919464A CN106919464A CN201710108821.0A CN201710108821A CN106919464A CN 106919464 A CN106919464 A CN 106919464A CN 201710108821 A CN201710108821 A CN 201710108821A CN 106919464 A CN106919464 A CN 106919464A
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- latch
- signal
- controlled module
- control signal
- controller
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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
- G06F11/0796—Safety measures, i.e. ensuring safe condition in the event of error, e.g. for controlling element
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- Theoretical Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
This application provides a kind of server board reset protective device and method, server board reset protective device includes：Controller, latch and controlled module；Controller is connected with latch, and latch is connected with controlled module；Controller is used to export enable signal and control signal to latch；Latch is used for when effective enable signal is received, and the control signal that will be currently received is exported to controlled module, and when invalid enable signal is received, history control signal is exported to controlled module；Controlled module, for the control signal exported according to latch, performs action.In this application, by that can avoid with upper type causing the function of board to get muddled.
Description
Technical field
The application is related to server design field, more particularly to a kind of server board reset protective device and method.
Background technology
In the board design of server, board is carried out functionally and logically through frequently with controller (such as ARM, CPLD)
Control.In controller more new procedures or when running into other situations, can reset unavoidably.Due to pin level during controller reset
State is uncontrollable, and the working condition of the controlled module being connected with controller can be caused also to change therewith.However, such case
Under, the change of the working condition of controlled module is abnormal, and the function of board can be caused to get muddled.
The content of the invention
In order to solve the above technical problems, the embodiment of the present application provides a kind of server board reset protective device and method,
To reach the purpose for avoiding the function of causing board from getting muddled, technical scheme is as follows：
A kind of server board reset protective device, including：Controller, latch and controlled module；
The controller is connected with the latch, and the latch is connected with the controlled module；
The controller is used to export enable signal and control signal to the latch；
The latch is used for when effective enable signal is received, and the control signal that will be currently received is exported to institute
Controlled module is stated, and when invalid enable signal is received, history control signal is exported to the controlled module；
The controlled module, for the control signal exported according to the latch, performs action.
Preferably, the enable signal is square-wave signal.
Preferably, the enable signal is low and high level signal.
A kind of server board reset and protection method, including：
Controller output enables signal and control signal to latch；
When effective enable signal is received, the control signal that will be currently received is exported to controlled mould the latch
Block, when invalid enable signal is received, history control signal is exported to the controlled module；
The control signal that the controlled module is exported according to the latch, performs action.
Preferably, the enable signal is square-wave signal.
Preferably, the enable signal is low and high level signal.
Compared with prior art, the application has the beneficial effect that：
In this application, latch is increased between controller and controlled module, controller passes through latch output control
To controlled module, controller enables signal effectively to signal in normal operation, and latch can then be received and effectively enable letter
Number, and when effective enable signal is received, the control signal that will be currently received is exported to controlled module；If controller is sent out
Raw to reset, enabling signal can be from being effectively changed into invalid, and latch can then receive invalid enable signal, and invalid receiving
Enable signal when, history control signal is exported to controlled module, controlled module is kept original working condition, it is ensured that to receive
The working condition for controlling module will not occur ANOMALOUS VARIATIONS with the reset of controller, it is to avoid cause the function of board to get muddled.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application, below will be to make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of logical construction schematic diagram of the server board reset protective device that the application is provided；
Fig. 2 is a kind of flow chart of the server board reset and protection method that the application is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the application protection.
Embodiment one
, Fig. 1 is referred to, a kind of logical construction of the server board reset protective device provided it illustrates the application is shown
It is intended to, server board reset protective device includes：Controller 11, latch 12 and controlled module 13.
The controller 11 is connected with the latch 12, and the latch 12 is connected with the controlled module 13.
The controller 11 is used to export enable signal and control signal to the latch 12.
In the present embodiment, controller 11 controls the working condition of latch 12 by enabling signal, specially：In output
During effective enable signal to latch 12, the input signal i.e. latch 12 synchronous with output signal holding of latch 12 is exported
The control signal of controller 11 is to controlled module 13；When invalid enable signal is exported to latch 12, latch 12 it is defeated
The holding that does well is constant, unrelated with input state.Wherein, when resetting, the enable signal of output is invalid to controller 11
's.
The latch 12 be used for receive it is effective enable signal when, the control signal that will be currently received export to
The controlled module 13, and when invalid enable signal is received, history control signal is exported to the controlled module
13。
In the present embodiment, history control signal is the control signal that last time latch 12 is latched.
The controlled module 13, for the control signal exported according to the latch 12, performs action.
When effective enable signal is received, the control signal that will be currently received is exported to controlled module latch 12
When 13, the control signal being currently received that controlled module 13 is exported according to latch 12 performs action；Latch 12 is being received
During to invalid enable signal, history control signal is exported to controlled module 13, controlled module 13 is then defeated according to latch 12
The history control signal for going out, performs action.
In this application, latch 12 is increased between controller 11 and controlled module 13, controller 11 passes through latch
12 output control signals to controlled module 13, and controller 11 enables signal effectively in normal operation, and latch 12 can then be received
Enable signal to effective, and receive it is effective enable signal when, the control signal that will be currently received is exported to controlled
Module 13；If controller 11 resets, enabling signal can be from being effectively changed into invalid, and latch 12 can then receive invalid making
Energy signal, and when invalid enable signal is received, history control signal is exported to controlled module 13, make controlled module 13
Keep original working condition, it is ensured that the working condition of controlled module 13 will not occur ANOMALOUS VARIATIONS with the reset of controller 11,
Avoid causing the function of board from getting muddled.
In the present embodiment, enable signal can with but be not limited to square-wave signal.When it is square-wave signal to enable signal,
When controller 11 normally runs, square-wave signal to latch 12 can be sent, the input signal and output signal of latch 12 keep
It is synchronous, the control signal of o controller 11 to controlled module 13；When controller 11 resets, controller 11 no longer sends
Square-wave signal, latch 12 does not receive square-wave signal i.e. equivalent to receiving invalid enable signal, the output of latch 12
State keeps constant.
Certainly, enable signal can with but be not limited to low and high level signal.When it is low and high level signal to enable signal,
Low level signal can be set effectively to enable signal, when low level signal is effectively to enable signal, controller 11 exports low
During level signal to latch 12, the input signal and output signal of latch 12 keep synchronous, the control of o controller 11
To controlled module 13, when controller 11 exports high level signal to latch 12, the output state of latch 12 keeps signal
It is constant, output history control signal to controlled module 13 unrelated with input state.
Certainly, when it is low and high level signal to enable signal, it is also possible to which high level signal is set effectively to enable signal.When
When high level signal is effectively to enable signal, during output high level signal to the latch 12 of controller 11, the input of latch 12
Signal and output signal keep synchronous, and the control signal of o controller 11 exports low electricity to controlled module 13 in controller 11
During ordinary mail number to latch 12, the output state of latch 12 keeps constant, unrelated with input state, exports history control signal
To controlled module 13.
Embodiment two
It is corresponding with said apparatus embodiment, a kind of server board reset and protection method is present embodiments provided, please join
See Fig. 2, may comprise steps of：
Step S11：Controller output enables signal and control signal to latch.
Step S12：When effective enable signal is received, the control signal that will be currently received is exported the latch
To controlled module, when invalid enable signal is received, history control signal is exported to the controlled module.
In the present embodiment, enable signal can with but be not limited to square-wave signal.
Certainly, enable signal and low and high level signal but can also be not limited to.
Step S13：The control signal that the controlled module is exported according to the latch, performs action.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For device class embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, related part ginseng
See the part explanation of embodiment of the method.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", does not arrange
Except also there is other identical element in the process including the key element, method, article or equipment.
For convenience of description, it is divided into various units with function during description apparatus above to describe respectively.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware during application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Realized by the mode of software plus required general hardware platform.Based on such understanding, the technical scheme essence of the application
On the part that is contributed to prior art in other words can be embodied in the form of software product, the computer software product
Can store in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used to so that a computer equipment
(can be personal computer, server, or network equipment etc.) performs some of each embodiment of the application or embodiment
Method described in part.
A kind of server board reset protective device provided herein and method are described in detail above, this
Apply specific case in text to be set forth the principle and implementation method of the application, the explanation of above example is only intended to
Help understands the present processes and its core concept；Simultaneously for those of ordinary skill in the art, according to the think of of the application
Think, will change in specific embodiments and applications, in sum, it is right that this specification content should not be construed as
The limitation of the application.
Claims (6)
1. a kind of server board reset protective device, it is characterised in that including：Controller, latch and controlled module；
The controller is connected with the latch, and the latch is connected with the controlled module；
The controller is used to export enable signal and control signal to the latch；
The latch is used for when effective enable signal is received, and the control signal that will be currently received is exported to described and received
Control module, and when invalid enable signal is received, history control signal is exported to the controlled module；
The controlled module, for the control signal exported according to the latch, performs action.
2. device according to claim 1, it is characterised in that the enable signal is square-wave signal.
3. device according to claim 1, it is characterised in that the enable signal is low and high level signal.
4. a kind of server board reset and protection method, it is characterised in that including：
Controller output enables signal and control signal to latch；
When effective enable signal is received, the control signal that will be currently received is exported to controlled module the latch,
When invalid enable signal is received, history control signal is exported to the controlled module；
The control signal that the controlled module is exported according to the latch, performs action.
5. method according to claim 4, it is characterised in that the enable signal is square-wave signal.
6. method according to claim 4, it is characterised in that the enable signal is low and high level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108821.0A CN106919464A (en) | 2017-02-27 | 2017-02-27 | A kind of server board reset protective device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108821.0A CN106919464A (en) | 2017-02-27 | 2017-02-27 | A kind of server board reset protective device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106919464A true CN106919464A (en) | 2017-07-04 |
Family
ID=59454202
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108821.0A Pending CN106919464A (en) | 2017-02-27 | 2017-02-27 | A kind of server board reset protective device and method |
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| CN (1) | CN106919464A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202583775U (en) * | 2012-05-22 | 2012-12-05 | 大连嘉禾自控技术有限公司 | Full-function type bolt tightening shaft controller |
| CN202794943U (en) * | 2012-09-14 | 2013-03-13 | 北京和利时自动化驱动技术有限公司 | Digital quantity output circuit |
| CN104407882A (en) * | 2014-10-28 | 2015-03-11 | 大唐移动通信设备有限公司 | Board card device |
-
2017
- 2017-02-27 CN CN201710108821.0A patent/CN106919464A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202583775U (en) * | 2012-05-22 | 2012-12-05 | 大连嘉禾自控技术有限公司 | Full-function type bolt tightening shaft controller |
| CN202794943U (en) * | 2012-09-14 | 2013-03-13 | 北京和利时自动化驱动技术有限公司 | Digital quantity output circuit |
| CN104407882A (en) * | 2014-10-28 | 2015-03-11 | 大唐移动通信设备有限公司 | Board card device |
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Application publication date: 20170704 |