CN113721748A - Communication monitoring system of server system power supply and server mainboard - Google Patents
Communication monitoring system of server system power supply and server mainboard Download PDFInfo
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Abstract
The application discloses a communication monitoring system of a server system power supply and a server mainboard, which are composed of a signal input circuit, a signal measuring circuit, a main controller and a signal output circuit, wherein the signal input circuit is arranged between a communication output end of a server power supply unit and a substrate management controller of a server, the signal measuring circuit measures to obtain a signal parameter measuring result of a communication signal output by the power supply unit, the main controller analyzes the signal parameter measuring result according to a power management bus communication protocol of the substrate management controller to obtain an analysis result, converts the communication signal into a standard communication signal specified by the power management bus communication protocol according to the analysis result, then controls the signal output circuit to send the standard communication signal to the substrate management controller, realizes the communication quality monitoring and standardization processing of the server system power supply, shields the power supply communication difference of the power supply unit for the server mainboard, the power supply communication quality and the communication reliability of the server are improved.
Description
Technical Field
The present application relates to the field of server technologies, and in particular, to a communication monitoring system for a server system power supply and a server motherboard.
Background
In a server system, a Power Supply Unit (PSU) is an important component of the server, and Power supply and self-operating conditions of the PSU are related to Power supply safety and system safety of the server system.
The power supply unit of the server generally has universal adaptability. However, depending on the configuration and system conditions of the server and the actual application, the server may be collocated with power supply units of different manufacturers, different models and different power stages. Although the server is also based on a Power Management Bus (PMBus) protocol to communicate with the server motherboard, Power supply units of different manufacturers and different specifications still have hardware differences and differences in implementation modes of the Power Management Bus protocol, and different Power supplies are generated when the server is applied, so that the Power supply communication quality and the communication reliability of the server are affected.
Disclosure of Invention
The application aims to provide a communication monitoring system of a server system power supply and a server mainboard, which are used for solving the problems of poor power supply communication quality and low communication reliability brought to a server by power supply unit communication difference.
In order to solve the above technical problem, the present application provides a communication monitoring system for a server system power supply, including: the signal input circuit, the signal measuring circuit, the main controller and the signal output circuit;
the input end of the signal input circuit is connected with the communication output end of a power supply unit of the server, the output end of the signal input circuit is connected with the input end of the signal measuring circuit, the output end of the signal measuring circuit is connected with the input end of the main controller, the control end of the main controller is connected with the input end of the signal output circuit, and the output end of the signal output circuit is connected with the substrate management controller of the server;
the signal measurement circuit is used for measuring circuit parameters of communication signals output by the power supply unit to obtain a signal parameter measurement result;
the main controller is used for analyzing the signal parameter measurement result according to a power management bus communication protocol of the substrate management controller to obtain an analysis result, converting the communication signal into a standard communication signal specified by the power management bus communication protocol according to the analysis result, and then controlling the signal output circuit to send the standard communication signal to the substrate management controller.
Optionally, the signal parameter measurement result at least includes an input level signal measurement result and an input signal waveform parameter measurement result.
Optionally, the main controller analyzes the signal parameter measurement result according to a power management bus communication protocol of the baseboard management controller to obtain an analysis result, specifically:
the main controller analyzes the signal parameter measurement result to obtain the analysis result based on a signal analysis rule compiled according to the power management bus communication protocol;
and the main controller is also used for updating the signal analysis rule according to the rule updating command after receiving the rule updating command sent by the baseboard management controller.
Optionally, the main controller is further configured to send the analysis result to the baseboard management controller.
Optionally, the system further comprises a memory connected to the main controller for storing the signal parameter measurement result and the analysis result.
Optionally, the controller further comprises a controller power supply circuit connected to the power supply terminal of the main controller;
the controller power supply circuit comprises a power supply unit power supply circuit and a standby power supply circuit;
the input end of the power supply circuit of the power supply unit is connected with the power output end of the power supply unit, and the output end of the power supply circuit of the power supply unit and the output end of the standby power supply circuit are respectively connected with the power supply end of the memory;
the standby power supply circuit is used for supplying power to the main controller after the power supply circuit of the power supply unit is powered off.
Optionally, the standby power supply circuit specifically includes: the system comprises a super capacitor, a battery power supply circuit and a switching circuit;
the super capacitor is connected with the output end of the power supply unit power supply circuit and the power supply end of the switching circuit respectively, the first output end of the switching circuit is connected with the control end of the power supply unit power supply circuit, the second output end of the switching circuit is connected with the control end of the battery power supply circuit, and the switching circuit is used for switching the main controller to be powered by the battery power supply circuit after the power supply unit is powered down.
Optionally, the signal input circuit specifically includes a first operational amplifier and a filtering and converting circuit;
the input end of the first operational amplifier is connected with the communication output end of the power supply unit, the output end of the first operational amplifier is connected with the input end of the filtering and converting circuit, and the output end of the filtering and converting circuit is connected with the input end of the signal measuring circuit.
Optionally, the signal output circuit specifically includes a second operational amplifier and a comparator;
the input end of the second operational amplifier is connected with the control end of the main control chip, the output end of the second operational amplifier is connected with the input end of the comparator, and the output end of the comparator is connected with the substrate management controller.
In order to solve the above technical problem, the present application further provides a server motherboard including the communication monitoring system of the server system power supply according to any one of the above embodiments.
The communication monitoring system of the server system power supply comprises a signal input circuit, a signal measuring circuit, a main controller and a signal output circuit, wherein the signal input circuit is arranged between the communication output end of a server power supply unit and a substrate management controller of a server, the signal measuring circuit, the main controller and the signal output circuit are used for acquiring circuit parameters of communication signals output by the power supply unit and input by the signal input circuit through the signal measuring circuit to obtain a signal parameter measuring result, the main controller analyzes the signal parameter measuring result according to a power management bus communication protocol of the substrate management controller to obtain an analysis result, the communication signals are converted into standard communication signals specified by the power management bus communication protocol according to the analysis result, then the signal output circuit is controlled to send the standard communication signals to the substrate management controller, and the communication quality monitoring and the standardized processing of the server system power supply are realized, the power supply communication difference brought by the power supply unit is shielded for the server mainboard, so that the power supply communication quality and the communication reliability of the server are improved.
The application also provides a server mainboard, which has the beneficial effects and is not repeated herein.
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For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication monitoring system for a server system power supply according to an embodiment of the present disclosure;
wherein 101 is a signal input circuit, 102 is a signal measuring circuit, 103 is a main controller, and 104 is a signal output circuit.
Detailed Description
The core of the application is to provide a communication monitoring system of a server system power supply and a server mainboard, which are used for solving the problems of poor power supply communication quality and low communication reliability brought to a server by the communication difference of a power supply unit.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example one
Fig. 1 is a schematic structural diagram of a communication monitoring system for a server system power supply according to an embodiment of the present disclosure.
As shown in fig. 1, a communication monitoring system for a server system power supply provided in an embodiment of the present application includes: a signal input circuit 101, a signal measurement circuit 102, a main controller 103 and a signal output circuit 104;
the input end of the signal input circuit 101 is connected with the communication output end of a power supply unit of the server, the output end of the signal input circuit 101 is connected with the input end of the signal measuring circuit 102, the output end of the signal measuring circuit 102 is connected with the input end of the main controller 103, the control end of the main controller 103 is connected with the input end of the signal output circuit 104, and the output end of the signal output circuit 104 is connected with a substrate management controller of the server;
the signal measurement circuit 102 is configured to measure a circuit parameter of a communication signal output by the power supply unit to obtain a signal parameter measurement result;
the main controller 103 is configured to analyze the signal parameter measurement result according to the power management bus communication protocol of the bmc to obtain an analysis result, convert the communication signal into a standard communication signal specified by the power management bus communication protocol according to the analysis result, and control the signal output circuit 104 to send the standard communication signal to the bmc.
In a specific implementation, the communication monitoring system for the server system power supply provided in the embodiment of the present application may be Integrated on a server motherboard, and disposed in a two-wire serial bus (I2C) of the power supply unit, specifically disposed between a communication output terminal of the power supply unit and a power communication input terminal of the board management controller, and the power communication output terminal of the board management controller and the communication input terminal of the power supply unit may be in an original state.
The communication monitoring system of the server system power supply provided by the embodiment of the application processes the communication signal output by the power supply unit, which relates to the processing of software and the processing of hardware. The processing in hardware is performed by the signal input circuit 101 and the signal output circuit 104, and the processing in software is performed by the main controller 103.
The signal input circuit 101 may specifically include a first operational amplifier and a filter conversion circuit;
the input end of the first operational amplifier is connected to the communication output end of the power supply unit, the output end of the first operational amplifier is connected to the input end of the filtering and converting circuit, and the output end of the filtering and converting circuit is connected to the input end of the signal measuring circuit 102.
The communication signal output by the power supply unit may have a problem of high level overshoot or low level negative voltage overshoot, and is converted into a standard voltage by signal filtering and converting by the signal input circuit 101.
The signal output circuit 104 may specifically include a second operational amplifier and a comparator;
the input end of the second operational amplifier is connected with the control end of the main control chip, the output end of the second operational amplifier is connected with the input end of the comparator, and the output end of the comparator is connected with the substrate management controller.
The signal output circuit 104 is used for outputting a standard communication signal meeting the Power Management Bus (PMBus) communication protocol requirement of the bmc, such as a waveform that can be accurately identified by the bmc, under the control of the main controller 103. The hardware standardization processing of the communication signal output by the power supply unit is realized by the signal input circuit 101 and the signal output circuit 104.
In software, the main controller 103 combines the signal parameter measurement result obtained by the signal measurement circuit 102, and determines how to control the output of the signal output circuit 104 after analyzing the analysis result.
Specifically, the main controller 103 may be built by an ARM chip, and is configured to analyze a signal parameter measurement result obtained by the signal input circuit 101 and the signal measurement circuit 102, compare the signal parameter measurement result with a specification of a power management bus communication protocol of the substrate management controller, and send a communication signal output by the power supply unit to the substrate management controller of the server motherboard after performing standardized processing on the communication signal. To implement this function, the main controller 103 is pre-deployed with an analysis program written based on the power management bus communication protocol of the baseboard management controller.
The signal parameter measurement result at least includes an input level signal measurement result and an input signal waveform parameter measurement result, and may also include other parameters set according to the server power supply communication requirement. The signal measuring circuit 102 is provided with a logic collector, which can be used for collecting the level change of the I2C signal output by the power supply unit and the voltage change of different change points, and transmitting the logic information to the main controller 103, so as to facilitate the parameter analysis and logic analysis of the communication signal. In practical applications, for example, the level signal output by the power supply unit obtained by collection and analysis is 2.3V, and the high level specified by the power management bus communication protocol is 2.4V, which is usually caused by a problem in the hardware of the power supply unit, rather than a communication error, at this time, the main controller 103 may record the signal as high level and then control the signal output circuit 104 to output a standard 2.4V high level signal.
Similarly, the main controller 103 may perform amplification or reduction processing on the waveform according to the specification of the power management bus communication protocol after analyzing the parameters of the waveform output by the power supply unit.
The main controller 103 compares the signal parameter measurement result with a standard parameter specified by the power management bus communication protocol, determines a parameter to be adjusted, and obtains an adjustment method. For parameters that cannot be adjusted, the main controller 103 may send this information to the bmc, and the bmc performs processing such as storage and reporting. Therefore, the main controller 103 provided in this embodiment of the present application is further configured to send the analysis result to the baseboard management controller, where the analysis result may include all the analysis results, or may only include the communication signal and the signal parameter thereof that cannot be standardized.
In addition, the communication monitoring system for the server system power supply provided by the embodiment of the application may further include a memory connected to the main controller 103 and used for storing the signal parameter measurement result and the analysis result, so as to facilitate the main controller 103 to call.
The communication monitoring system of the server system power supply provided by the embodiment of the application comprises a signal input circuit, a signal measuring circuit, a main controller and a signal output circuit, wherein the signal input circuit is arranged between the communication output end of a server power supply unit and a substrate management controller of a server, the signal measuring circuit is used for acquiring circuit parameters of communication signals output by the power supply unit and input by the signal input circuit to obtain a signal parameter measuring result, the main controller analyzes the signal parameter measuring result according to a power management bus communication protocol of the substrate management controller to obtain an analysis result, the communication signals are converted into standard communication signals specified by the power management bus communication protocol according to the analysis result, and then the signal output circuit is controlled to send the standard communication signals to the substrate management controller, so that the communication quality monitoring and the standardized processing of the server system power supply are realized, the power supply communication difference brought by the power supply unit is shielded for the server mainboard, so that the power supply communication quality and the communication reliability of the server are improved.
Example two
On the basis of the foregoing embodiment, in the communication monitoring system for a server system power supply provided in the embodiment of the present application, the main controller 103 analyzes the signal parameter measurement result according to the power management bus communication protocol of the baseboard management controller to obtain an analysis result, specifically:
the main controller 103 is configured to analyze the signal parameter measurement result to obtain an analysis result based on a signal analysis rule written according to the power management bus communication protocol.
The main controller 103 is further configured to update the signal analysis rule according to the rule update command after receiving the rule update command sent by the baseboard management controller.
In a specific implementation, an analysis program written based on the power management bus communication protocol of the bmc and pre-deployed in the main controller 103 is used to implement the signal analysis rule. The signal analysis rules mainly specify the signal parameters to be analyzed and evaluation criteria, such as standard values and allowable errors.
The signal analysis rules may be updated as the server operates and the power supply unit is replaced. The worker may input a rule update command to the baseboard management controller, which sends the rule update command by communicating with the main controller 103 to cause the main controller 103 to update the signal analysis rules. Specifically, if the signal for performing rule updating is pre-agreed, for example, the transmission of data is started after the instruction of 0X55 is specified by the general power management bus communication protocol, the signal for performing rule updating is pre-agreed to be 0XAA, and when the master receives the signal, the updating of the signal analysis rule and the updating of the system are performed.
EXAMPLE III
It is mentioned in the above embodiments that the main controller 103 may be used for controlling the storage of the signal parameter measurement result and the analysis result in the memory, in addition to the analysis of the signal parameter measurement result and the normalization processing of the communication signal output by the power supply unit according to the analysis result. On the basis of the above embodiment, in the communication monitoring system of the server system power supply provided in the embodiment of the present application, the main controller 103 may include a first main controller 103 for analyzing the signal parameter measurement result and performing the normalization process, and a second main controller 103 for controlling the storage of the signal parameter measurement result and the analysis result. When the server system is in normal operation, the first main controller 103 and the second main controller 103 are both powered by the power supply unit. After the server system is powered off, the second main controller 103 is powered by the independent power module, so that when the server cannot normally supply power, the second main controller 103 controls the memory to uninterruptedly collect communication information of the power supply unit, and a worker can conveniently analyze and investigate problems.
The communication monitoring system of the server system power supply provided in the embodiment of the present application further includes a controller power supply circuit connected to the power supply terminal of the main controller 103;
the controller power supply circuit comprises a power supply unit power supply circuit and a standby power supply circuit;
the input end of the power supply circuit of the power supply unit is connected with the power output end of the power supply unit, and the power output end of the power supply circuit of the power supply unit and the power output end of the standby power supply circuit are respectively connected with the power supply end of the memory;
the standby power supply circuit is used for supplying power to the main controller 103 after the power supply circuit of the power supply unit is powered off.
The power supply circuit of the power supply unit is connected with the power output end of the power supply unit. The standby power supply circuit comprises a standby battery, the standby battery can be fully charged by the power supply unit when the server system works normally, and supplies power to the second main controller 103 when the server system is powered down, so that the communication signals output by the power supply unit are collected and stored in the period from the time when the server system is powered down to the time when the power supply unit completely fails.
Specifically, the standby power supply circuit may include: the system comprises a super capacitor, a battery power supply circuit and a switching circuit;
the super capacitor is connected with the output end of the power supply circuit of the power supply unit and the power supply end of the switching circuit respectively, the first output end of the switching circuit is connected with the control end of the power supply circuit of the power supply unit, the second output end of the switching circuit is connected with the control end of the battery power supply circuit, and the switching circuit is used for switching the main controller 103 to be powered by the battery power supply circuit after the power supply unit is powered down.
On the basis of the above detailed description of the embodiments corresponding to the communication monitoring system of the server system power supply, the present application also discloses a server motherboard corresponding to the communication monitoring system of the server system power supply, a communication monitoring method of the server system power supply, and a communication monitoring device of the server system power supply.
Example four
The server board provided by the embodiment of the present application may include any one of the above embodiments and a communication monitoring system of the server system power supply described in combination with the above embodiments.
Since the embodiment of the server motherboard corresponds to the embodiment of the communication monitoring system portion of the server system power supply, reference is made to the description of the embodiment of the communication monitoring system portion of the server system power supply for the embodiment of the server motherboard portion, and details are not repeated here.
EXAMPLE five
Based on the master controller, the communication monitoring method for the server system power supply provided by the embodiment of the application comprises the following steps:
receiving a signal parameter measurement result obtained by measuring a circuit parameter of a communication signal output by the power supply unit by the signal measurement circuit;
analyzing the signal parameter measurement result according to a power management bus communication protocol of a baseboard management controller of the server to obtain an analysis result;
converting the communication signal output by the power supply unit into a standard communication signal specified by a power management bus communication protocol according to the analysis result;
the control signal output circuit sends the standard communication signal to the substrate management controller;
the input end of the signal input circuit is connected with the communication output end of the power supply unit of the server, the output end of the signal input circuit is connected with the input end of the signal measuring circuit, the output end of the signal measuring circuit is connected with the input end of the main controller, the control end of the main controller is connected with the input end of the signal output circuit, and the output end of the signal output circuit is connected with the substrate management controller of the server.
Optionally, the signal parameter measurement result at least includes an input level signal measurement result and an input signal waveform parameter measurement result.
Optionally, the analyzing the signal parameter measurement result according to the power management bus communication protocol of the baseboard management controller to obtain an analysis result, specifically:
analyzing the signal parameter measurement result to obtain an analysis result based on a signal analysis rule compiled according to a power management bus communication protocol;
the communication monitoring method for the server system power supply provided by the embodiment of the application further comprises the following steps:
and after receiving a rule updating command sent by the baseboard management controller, updating the signal analysis rule according to the rule updating command.
Optionally, the method for monitoring communication of the server system power supply provided in the embodiment of the present application further includes:
and sending the analysis result to the substrate management controller.
Optionally, the method for monitoring communication of the server system power supply provided in the embodiment of the present application further includes:
and sending the signal parameter measurement result and the analysis result to a memory connected with the main controller for storage.
Optionally, the power supply end of the main controller is connected with a controller power supply circuit;
the controller power supply circuit comprises a power supply unit power supply circuit and a standby power supply circuit;
the input end of the power supply circuit of the power supply unit is connected with the power output end of the power supply unit, and the output end of the power supply circuit of the power supply unit and the output end of the standby power supply circuit are respectively connected with the power supply end of the memory;
the standby power supply circuit is used for supplying power to the main controller after the power supply circuit of the power supply unit is powered off.
Optionally, the standby power supply circuit specifically includes: the system comprises a super capacitor, a battery power supply circuit and a switching circuit;
the super capacitor is connected with the output end of the power supply circuit of the power supply unit and the power supply end of the switching circuit respectively, the first output end of the switching circuit is connected with the control end of the power supply circuit of the power supply unit, the second output end of the switching circuit is connected with the control end of the battery power supply circuit, and the switching circuit is used for switching the main controller to be powered by the battery power supply circuit after the power supply unit is powered down.
Optionally, the signal input circuit specifically includes a first operational amplifier and a filtering and converting circuit;
the input end of the first operational amplifier is connected with the communication output end of the power supply unit, the output end of the first operational amplifier is connected with the input end of the filtering and converting circuit, and the output end of the filtering and converting circuit is connected with the input end of the signal measuring circuit.
Optionally, the signal output circuit specifically includes a second operational amplifier and a comparator;
the input end of the second operational amplifier is connected with the control end of the main control chip, the output end of the second operational amplifier is connected with the input end of the comparator, and the output end of the comparator is connected with the substrate management controller.
The communication monitoring method of the server system power supply provided by the embodiment of the application is based on the signal input circuit, the signal measurement circuit, the main controller and the signal output circuit which are arranged between the communication output end of the server power supply unit and the substrate management controller of the server, the signal measurement circuit acquires the circuit parameters of the communication signals output by the power supply unit and input by the signal input circuit to obtain the measurement result of the signal parameters, the main controller analyzes the measurement result of the signal parameters according to the power management bus communication protocol of the substrate management controller to obtain the analysis result, the communication signals are converted into the standard communication signals specified by the power management bus communication protocol according to the analysis result, and then the signal output circuit is controlled to send the standard communication signals to the substrate management controller, thereby realizing the communication quality monitoring and the standardized processing of the server system power supply, the power supply communication difference brought by the power supply unit is shielded for the server mainboard, so that the power supply communication quality and the communication reliability of the server are improved.
EXAMPLE six
The communication monitoring device of the server system power supply provided by the embodiment of the application comprises:
the receiving unit is used for receiving a signal parameter measuring result obtained by measuring the circuit parameter of the communication signal output by the power supply unit by the signal measuring circuit;
the analysis unit is used for analyzing the signal parameter measurement result according to a power management bus communication protocol of a baseboard management controller of the server to obtain an analysis result;
the conversion unit is used for converting the communication signal output by the power supply unit into a standard communication signal specified by a power management bus communication protocol according to the analysis result;
the control unit is used for controlling the signal output circuit to send the standard communication signal to the substrate management controller;
the input end of the signal input circuit is connected with the communication output end of the power supply unit of the server, the output end of the signal input circuit is connected with the input end of the signal measuring circuit, the output end of the signal measuring circuit is connected with the input end of the main controller, the control end of the main controller is connected with the input end of the signal output circuit, and the output end of the signal output circuit is connected with the substrate management controller of the server.
The communication monitoring device of the server system power supply provided by the embodiment of the application is based on a signal input circuit, a signal measuring circuit, a main controller and a signal output circuit which are arranged between a communication output end of a server power supply unit and a substrate management controller of a server, the signal measuring circuit is used for acquiring circuit parameters of communication signals output by the power supply unit and input by the signal input circuit to obtain a signal parameter measuring result, the main controller analyzes the signal parameter measuring result according to a power management bus communication protocol of the substrate management controller to obtain an analysis result, the communication signals are converted into standard communication signals specified by the power management bus communication protocol according to the analysis result, and then the signal output circuit is controlled to send the standard communication signals to the substrate management controller, so that the communication quality monitoring and the standardized processing of the server system power supply are realized, the power supply communication difference brought by the power supply unit is shielded for the server mainboard, so that the power supply communication quality and the communication reliability of the server are improved.
The communication monitoring system of the server system power supply and the server motherboard provided by the application are introduced in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The server mainboard, the communication monitoring method of the server system power supply and the device disclosed by the embodiment are relatively simple in description because the method corresponds to the method disclosed by the embodiment, and relevant points can be referred to the partial description of the communication monitoring system of the server system power supply. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A communication monitoring system for a server system power supply, comprising: the signal input circuit, the signal measuring circuit, the main controller and the signal output circuit;
the input end of the signal input circuit is connected with the communication output end of a power supply unit of the server, the output end of the signal input circuit is connected with the input end of the signal measuring circuit, the output end of the signal measuring circuit is connected with the input end of the main controller, the control end of the main controller is connected with the input end of the signal output circuit, and the output end of the signal output circuit is connected with the substrate management controller of the server;
the signal measurement circuit is used for measuring circuit parameters of communication signals output by the power supply unit to obtain a signal parameter measurement result;
the main controller is used for analyzing the signal parameter measurement result according to a power management bus communication protocol of the substrate management controller to obtain an analysis result, converting the communication signal into a standard communication signal specified by the power management bus communication protocol according to the analysis result, and then controlling the signal output circuit to send the standard communication signal to the substrate management controller.
2. The communication monitoring system of claim 1, wherein the signal parameter measurements comprise at least input level signal measurements and input signal waveform parameter measurements.
3. The communication monitoring system according to claim 1, wherein the main controller analyzes the signal parameter measurement result according to a power management bus communication protocol of the baseboard management controller to obtain an analysis result, specifically:
the main controller analyzes the signal parameter measurement result to obtain the analysis result based on a signal analysis rule compiled according to the power management bus communication protocol;
and the main controller is also used for updating the signal analysis rule according to the rule updating command after receiving the rule updating command sent by the baseboard management controller.
4. The communication monitoring system of claim 1, wherein the master controller is further configured to send the analysis results to the baseboard management controller.
5. The communication monitoring system according to claim 1, further comprising a memory connected to the master controller for storing the signal parameter measurements and the analysis results.
6. The communication monitoring system according to claim 1, further comprising a controller power supply circuit connected to a power supply terminal of the master controller;
the controller power supply circuit comprises a power supply unit power supply circuit and a standby power supply circuit;
the input end of the power supply circuit of the power supply unit is connected with the power output end of the power supply unit, and the output end of the power supply circuit of the power supply unit and the output end of the standby power supply circuit are respectively connected with the power supply end of the memory;
the standby power supply circuit is used for supplying power to the main controller after the power supply circuit of the power supply unit is powered off.
7. The communication monitoring system according to claim 6, wherein the backup power supply circuit specifically comprises: the system comprises a super capacitor, a battery power supply circuit and a switching circuit;
the super capacitor is connected with the output end of the power supply unit power supply circuit and the power supply end of the switching circuit respectively, the first output end of the switching circuit is connected with the control end of the power supply unit power supply circuit, the second output end of the switching circuit is connected with the control end of the battery power supply circuit, and the switching circuit is used for switching the main controller to be powered by the battery power supply circuit after the power supply unit is powered down.
8. The communication monitoring system according to claim 1, wherein the signal input circuit comprises in particular a first operational amplifier and a filter conversion circuit;
the input end of the first operational amplifier is connected with the communication output end of the power supply unit, the output end of the first operational amplifier is connected with the input end of the filtering and converting circuit, and the output end of the filtering and converting circuit is connected with the input end of the signal measuring circuit.
9. The communication monitoring system according to claim 1, wherein the signal output circuit comprises in particular a second operational amplifier and a comparator;
the input end of the second operational amplifier is connected with the control end of the main control chip, the output end of the second operational amplifier is connected with the input end of the comparator, and the output end of the comparator is connected with the substrate management controller.
10. A server board comprising the communication monitoring system for a server system power supply according to any one of claims 1 to 9.
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| CN203376685U (en) * | 2011-12-13 | 2014-01-01 | 技领半导体(上海)有限公司 | Multimode power manager of power management integrated circuit |
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