CN111835662A - Power supply device and method for switching chip on switch - Google Patents
Power supply device and method for switching chip on switch Download PDFInfo
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- CN111835662A CN111835662A CN202010673093.XA CN202010673093A CN111835662A CN 111835662 A CN111835662 A CN 111835662A CN 202010673093 A CN202010673093 A CN 202010673093A CN 111835662 A CN111835662 A CN 111835662A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention relates to a power supply device and a power supply method for a switching chip on a switch. The device comprises: the voltage regulating module is configured to supply power to the switching chip according to a preset voltage value; a switch chip configured to transmit a target voltage signal to the programmable logic device using a PVID protocol; the programmable logic device is configured to convert the target voltage signal into a voltage output instruction and transmit the voltage output instruction to the voltage regulation module by utilizing a PMBUS protocol; and the voltage regulating module is also configured to supply power to the switching chip according to the voltage output instruction. The scheme of the invention converts the target voltage signal of the exchange chip into the voltage output instruction by using the programmable logic device, so that the voltage regulating module supplies power to the exchange chip according to the voltage output instruction, the conversion from the PVID protocol of the exchange chip to the PMBUS protocol is realized, the PVID protocol of the exchange chip is not required to be sacrificed, the production cost is reduced, and the invention has better universality.
Description
Technical Field
The invention relates to the technical field of switch hardware power supplies, in particular to a power supply device and a power supply method for a switch chip on a switch.
Background
At present, most of the switch chips (SWITCH ASCI) of ethernet switches have a Voltage regulation function, and the principle is that the switch chips communicate with a Voltage Regulator Module (VRM) through a communication interface, notify the VRM of a required Voltage, and then the VRM regulates the Voltage.
Referring to fig. 1, fig. 1 shows a communication topology of a switch chip and a Voltage regulation module in the prior art, for example, a boston switch chip includes 8 pins, which are named as AVS [7:0], a VRM performs Voltage regulation according to a Parallel Voltage identification technology protocol (Parallel Voltage Identity, hereinafter referred to as PVID protocol), the 8 pins of the switch chip are directly connected to the 8 pins of the VRM11.1 after being isolated, Voltage requirement analysis of the switch chip can be realized without any protocol conversion in the middle, and then the VRM completes Voltage regulation.
Many technologies of VRM suppliers follow the Intel platform from VRM11.1 to VRM14, and the new VRM14 does not use 8 pins and a switching chip, but uses a Power management bus (PMBUS protocol), so that the existing switching chip can only abandon the PVID protocol; although the switch chip abandons the PVID protocol and can also communicate with the VRM through its integrated I2C, this part of the driver of the switch chip requires original factory support driver development, which is costly.
Disclosure of Invention
In view of the above, there is a need to provide a power supply apparatus and method for a switch chip on a switch that is compatible with a new generation of voltage regulation modules without sacrificing PVID protocol.
According to an aspect of the present invention, there is provided a power supply apparatus for a switch chip on a switch, the apparatus including:
the voltage regulation module is configured to supply power to the exchange chip according to a preset voltage value;
a switch chip configured to transmit a target voltage signal to a programmable logic device using a PVID protocol;
a programmable logic device configured to convert the target voltage signal into a voltage output instruction and transmit the voltage output instruction to the voltage regulation module using a PMBUS protocol; and
the voltage regulation module is further configured to supply power to the switch chip according to the voltage output instruction.
In one embodiment, the switch chip is connected to eight input pins of the programmable logic device through eight output pins, respectively, and the output pin of the programmable logic device is connected to the input pin of the voltage regulation module.
In one embodiment, the switch chip is configured to use eight output pin signals of the switch chip as the target voltage signal.
In one embodiment, the programmable logic device is configured to:
determining a target voltage value corresponding to the target voltage signal by utilizing a corresponding relation between a preset pin signal and a voltage value:
generating a voltage output instruction corresponding to the target voltage value according to the corresponding relation between a preset voltage value and a register write command;
transmitting the voltage output command to the voltage regulation module using the PMBUS protocol.
In one embodiment, the preset voltage value is stored in a preset register address of the voltage regulation module, and the voltage regulation module is configured to:
writing a target voltage value corresponding to the voltage output instruction into the preset register address to replace the preset voltage value;
and supplying power to a switching chip according to the target voltage value in the address of the preset register.
In one embodiment, the programmable logic device is configured to:
comparing the target voltage value with the preset voltage value;
and if the target voltage value is equal to the preset voltage value, the programmable logic device cancels the transmission of the voltage output instruction to the voltage regulation module.
In one embodiment, the apparatus further comprises:
and if the voltage output instruction is transmitted or the transmission of the voltage output instruction is cancelled, the programmable logic device is disconnected from a transmission channel of the voltage regulating module.
According to another aspect of the present invention, there is provided a method for supplying power to a switch chip on a switch, the method including:
the voltage regulating module supplies power to the switching chip according to a preset voltage value;
the exchange chip transmits the target voltage signal to the programmable logic device by utilizing a PVID protocol;
the programmable logic device converts the target voltage signal into a voltage output instruction and transmits the voltage output instruction to the voltage regulation module by utilizing a PMBUS protocol;
and the voltage regulating module supplies power to the switching chip according to the voltage output instruction.
In one embodiment, the step of converting the target voltage signal into a voltage output command by the programmable logic device and transmitting the voltage output command to the voltage regulation module by using a PMBUS protocol comprises:
determining a target voltage value corresponding to the target voltage signal by utilizing a corresponding relation between a preset pin signal and a voltage value:
generating a voltage output instruction corresponding to the target voltage value according to the corresponding relation between a preset voltage value and a register write command;
transmitting the voltage output command to the voltage regulation module using the PMBUS protocol.
In one embodiment, the step of storing the preset voltage value in a preset register address of the voltage regulation module, and the step of supplying power to the switch chip by the voltage regulation module according to the voltage output instruction includes:
writing a target voltage value corresponding to the voltage output instruction into the preset register address to replace the preset voltage value;
and supplying power to a switching chip according to the target voltage value in the address of the preset register.
According to the power supply device and method for the exchange chip on the exchanger, the target voltage signal of the exchange chip is converted into the voltage output instruction by using the programmable logic device, so that the voltage adjusting module supplies power to the exchange chip according to the voltage output instruction, the conversion from the PVID protocol of the exchange chip to the PMBUS protocol is realized, the PVID protocol of the exchange chip does not need to be sacrificed, the investment cost is reduced, and the power supply device and method have better universality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
FIG. 1 is a communication topology diagram of a switch chip and a voltage regulation module in the prior art;
FIG. 2 is a power supply apparatus for a switch chip on a switch according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating a method for powering a switch chip on a switch according to an embodiment of the invention;
FIG. 4 is a sub-flow chart of step 300 according to another embodiment of the present invention;
FIG. 5 is a sub-flow chart of step 400 according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In one embodiment, referring to fig. 2, the present invention provides a power supply apparatus for a switch chip on a switch, including:
and the voltage regulating module is configured to supply power to the exchange chip according to a preset voltage value.
A switch chip configured to transmit the target voltage signal to the programmable logic device using the PVID protocol.
The programmable logic device is configured to convert the target voltage signal into a voltage output instruction and transmit the voltage output instruction to the voltage regulation module by utilizing a PMBUS protocol; and
the voltage regulation module is further configured to supply power to the switch chip according to the voltage output instruction.
According to the power supply device of the exchange chip on the exchanger, the target voltage signal of the exchange chip is converted into the voltage output instruction by using the programmable logic device, so that the voltage adjusting module supplies power to the exchange chip according to the voltage output instruction, the conversion from the PVID protocol of the exchange chip to the PMBUS protocol is realized, the PVID protocol of the exchange chip is not required to be sacrificed, the investment cost is reduced, and the power supply device has better universality.
In another embodiment, the switching chip is respectively connected with eight input pins of the programmable logic device through eight output pins, and the output pin of the programmable logic device is connected with the input pin of the voltage regulation module; preferably, the switch chip is configured to take eight output pin signals of the switch chip as the target voltage signal.
For example, as illustrated by a boston switching chip, eight pins AVS [7:0] of the switching chip are connected to eight input pins of the CPLD, and an output terminal of the CPLD is connected to an input terminal of the voltage regulation module, so that the switching chip and the CPLD communicate with each other by using the PVID protocol, and the CPLD and the voltage regulation module communicate with each other by using the PMBUS protocol. It is understood that the CPLD is one type of programmable logic device for illustration only, and the programmable logic device may be other existing programmable logic devices, such as an FPGA, during implementation.
In yet another embodiment, the programmable logic device is configured to:
determining a target voltage value corresponding to the target voltage signal by utilizing the corresponding relation between the preset pin signal and the voltage value:
the corresponding relation between the preset pin signal and the voltage value is preset in the programmable logic device, the PVID protocol corresponds to the voltage value through the high-low combination of AVS [7:0], and the voltage takes 6.25mv as a variation unit; for example, the voltage value corresponding to AVS [7:0] is 0.8875V when AVS [7:0] is 11000001, the voltage value corresponding to AVS [7:0] is 0.89375V when AVS [7:0] is 11000010, and the preset pin signal-voltage value corresponding relationship includes about 20 pins in the implementation process, it should be understood that the upper swap chip pin signal and the voltage value corresponding to the pin signal are only used for illustration, and the voltage value corresponding to the high-low combination of the swap chip AVS [7:0] in the specific implementation process can be set by the user according to the actual requirement and/or the design standard of the swap chip.
Generating a voltage output instruction corresponding to the target voltage value according to the corresponding relation between the preset voltage value and the register write-in command;
the corresponding relation between the preset voltage value and the register write-in command is preset in the programmable logic device, a corresponding register write-in instruction can be matched after the target voltage value is determined, and the register write-in instruction is used for writing a numerical value in a register of the voltage regulating module.
And transmitting a voltage output instruction to the voltage regulating module by utilizing a PMBUS protocol.
According to the power supply device of the exchange chip on the exchanger, the PVID protocol data are converted into the Vout Command instruction in the PMBUS by means of the programmable logic device by means of the two preset corresponding relations in the programmable logic device, the problem that the type selection of the voltage regulating module is limited when the exchange chip supplies power is solved, the communication mode between the exchange chip and external equipment does not need to be changed, and the power supply device has good universality.
Preferably, the preset voltage value is stored in a preset register address of the voltage regulation module, and the voltage regulation module is configured to write a target voltage value corresponding to the voltage output instruction into the preset register address to replace the preset voltage value; in the implementation process, the voltage regulation module firstly provides voltage according to a preset voltage exchange chip in a preset register address, and when the preset voltage value is replaced by a numerical value written in the preset register address, the voltage regulation module subsequently supplies power to the exchange chip according to a target voltage value stored in the preset register address.
For example, in the implementation process, a preset voltage value is 0.9V, the voltage regulation module supplies power to the switch chip according to 0.9V, if the voltage required by the switch chip is 0.8875V, the switch chip transmits a target voltage signal of "11000001" to the programmable logic device through AVS [7:0], the programmable logic device generates a Vout Command instruction by using the corresponding relationship between the built-in preset pin signal and voltage value and the corresponding relationship between the preset voltage value and the register write Command, and the voltage regulation module replaces 0.9V stored in the register of the voltage regulation module with 0.8875V through the VoutCommand instruction, thereby realizing the regulation of the voltage supplied by the switch chip by the voltage regulation module.
Preferably, the programmable logic device may further add a process of determining the preset voltage and the target voltage, and the specific programmable logic device is configured to:
and comparing the target voltage value with a preset voltage value.
And if the target voltage value is equal to the preset voltage value, the programmable logic device cancels the transmission of the voltage output instruction to the voltage regulation module.
Preferably, the programmable logic device is further configured to: if the programmable logic device transmits the voltage output instruction or cancels the transmission of the voltage output instruction, the programmable logic device is disconnected from the transmission channel of the voltage regulating module.
According to the power supply device of the switching chip on the switch, the data is prevented from being written into the voltage regulation module when the preset voltage is the same as the target voltage, and the programmable logic device can actively disconnect a transmission channel with the voltage regulation module, so that the communication between a subsequent CPU and the voltage regulation module is not hindered.
In another embodiment, referring to fig. 3, a method for supplying power to a switch chip on a switch is provided, the method includes:
s100, the voltage regulating module supplies power to the exchange chip according to a preset voltage value;
s200, the exchange chip transmits a target voltage signal to the programmable logic device by utilizing a PVID protocol;
s300, converting the target voltage signal into a voltage output instruction by the programmable logic device, and transmitting the voltage output instruction to the voltage regulation module by utilizing a PMBUS protocol;
and S400, the voltage regulating module supplies power to the switching chip according to the voltage output instruction.
In yet another embodiment, fig. 4 shows a sub-flow diagram of the foregoing step 300, which specifically includes the following steps: ,
s310, determining a target voltage value corresponding to the target voltage signal by utilizing the corresponding relation between the preset pin signal and the voltage value:
s320, generating a voltage output instruction corresponding to the target voltage value according to the corresponding relation between the preset voltage value and the register write-in command;
s330, transmitting a voltage output instruction to the voltage regulating module by utilizing a PMBUS protocol.
Preferably, the preset voltage value is stored in a preset register address of the voltage regulation module:
writing a target voltage value corresponding to the voltage output instruction into a preset register address to replace the preset voltage value;
and supplying power to the switching chip according to the target voltage value in the address of the preset register.
In another embodiment, referring to fig. 5, the preset voltage value is stored in a preset register address of the voltage regulation module, and the step 400 includes:
s410, writing a target voltage value corresponding to the voltage output instruction into a preset register address to replace a preset voltage value;
and S420, supplying power to the exchange chip according to the target voltage value in the preset register address.
It should be noted that, for specific limitations of the power supply method of the switch chip on the switch, reference may be made to the above limitations on the power supply device of the switch chip on the switch, and details are not described here. All or part of each module in the power supply device of the switching chip on the switch can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. A power supply apparatus for a switch chip on a switch, the apparatus comprising:
the voltage regulation module is configured to supply power to the exchange chip according to a preset voltage value;
a switch chip configured to transmit a target voltage signal to a programmable logic device using a PVID protocol;
a programmable logic device configured to convert the target voltage signal into a voltage output instruction and transmit the voltage output instruction to the voltage regulation module using a PMBUS protocol; and
the voltage regulation module is further configured to supply power to the switch chip according to the voltage output instruction.
2. The apparatus of claim 1, wherein the switch chip is connected to eight input pins of the programmable logic device via eight output pins, respectively, and the output pins of the programmable logic device are connected to the input pins of the voltage regulation module.
3. The apparatus of claim 2, wherein the switch chip is configured to take eight output pin signals of the switch chip as the target voltage signal.
4. The apparatus of claim 3, wherein the programmable logic device is configured to:
determining a target voltage value corresponding to the target voltage signal by utilizing a corresponding relation between a preset pin signal and a voltage value:
generating a voltage output instruction corresponding to the target voltage value according to the corresponding relation between a preset voltage value and a register write command;
transmitting the voltage output command to the voltage regulation module using the PMBUS protocol.
5. The apparatus of claim 4, wherein the preset voltage value is stored in a preset register address of the voltage regulation module, and wherein the voltage regulation module is configured to:
writing a target voltage value corresponding to the voltage output instruction into the preset register address to replace the preset voltage value;
and supplying power to a switching chip according to the target voltage value in the address of the preset register.
6. The apparatus of claim 4, wherein the programmable logic device is configured to:
comparing the target voltage value with the preset voltage value;
and if the target voltage value is equal to the preset voltage value, the programmable logic device cancels the transmission of the voltage output instruction to the voltage regulation module.
7. The apparatus of claim 6, further comprising:
and if the voltage output instruction is transmitted or the transmission of the voltage output instruction is cancelled, the programmable logic device is disconnected from a transmission channel of the voltage regulating module.
8. A method for powering a switch chip on a switch, the method comprising:
the voltage regulating module supplies power to the switching chip according to a preset voltage value;
the exchange chip transmits the target voltage signal to the programmable logic device by utilizing a PVID protocol;
the programmable logic device converts the target voltage signal into a voltage output instruction and transmits the voltage output instruction to the voltage regulation module by utilizing a PMBUS protocol;
and the voltage regulating module supplies power to the switching chip according to the voltage output instruction.
9. The method of claim 8, wherein the step of the programmable logic device converting the target voltage signal into a voltage output command and transmitting the voltage output command to the voltage regulation module using a PMBUS protocol comprises:
determining a target voltage value corresponding to the target voltage signal by utilizing a corresponding relation between a preset pin signal and a voltage value:
generating a voltage output instruction corresponding to the target voltage value according to the corresponding relation between a preset voltage value and a register write command;
transmitting the voltage output command to the voltage regulation module using the PMBUS protocol.
10. The method of claim 9, wherein the preset voltage value is stored in a preset register address of the voltage regulation module, and the step of the voltage regulation module powering the switch chip according to the voltage output command comprises:
writing a target voltage value corresponding to the voltage output instruction into the preset register address to replace the preset voltage value;
and supplying power to a switching chip according to the target voltage value in the address of the preset register.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010673093.XA CN111835662A (en) | 2020-07-14 | 2020-07-14 | Power supply device and method for switching chip on switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010673093.XA CN111835662A (en) | 2020-07-14 | 2020-07-14 | Power supply device and method for switching chip on switch |
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| CN111835662A true CN111835662A (en) | 2020-10-27 |
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| CN202010673093.XA Withdrawn CN111835662A (en) | 2020-07-14 | 2020-07-14 | Power supply device and method for switching chip on switch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113778930A (en) * | 2021-11-12 | 2021-12-10 | 苏州浪潮智能科技有限公司 | AVS (Audio video Standard) adjusting system, method, device and equipment |
| CN114063757A (en) * | 2021-11-24 | 2022-02-18 | 福州创实讯联信息技术有限公司 | INTEL SVID power supply replacement method and device |
| CN115883266A (en) * | 2022-12-09 | 2023-03-31 | 苏州浪潮智能科技有限公司 | Voltage regulation method, system, equipment and storage medium of switch |
-
2020
- 2020-07-14 CN CN202010673093.XA patent/CN111835662A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113778930A (en) * | 2021-11-12 | 2021-12-10 | 苏州浪潮智能科技有限公司 | AVS (Audio video Standard) adjusting system, method, device and equipment |
| CN114063757A (en) * | 2021-11-24 | 2022-02-18 | 福州创实讯联信息技术有限公司 | INTEL SVID power supply replacement method and device |
| CN115883266A (en) * | 2022-12-09 | 2023-03-31 | 苏州浪潮智能科技有限公司 | Voltage regulation method, system, equipment and storage medium of switch |
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Application publication date: 20201027 |