CN112306915A - Communication interface control system and method thereof - Google Patents
Communication interface control system and method thereof Download PDFInfo
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- CN112306915A CN112306915A CN202011156428.7A CN202011156428A CN112306915A CN 112306915 A CN112306915 A CN 112306915A CN 202011156428 A CN202011156428 A CN 202011156428A CN 112306915 A CN112306915 A CN 112306915A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G06F2213/0016—Inter-integrated circuit (I2C)
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Abstract
The invention provides a communication interface control system and a method thereof, comprising a serial communication interface multitask processing module containing a plurality of serial communication interfaces, a management control module and a logic processing module. Each serial communication interface has serial communication interface information and is respectively connected with a data processing device with device connection information in a communication mode. When the management control module and the data processing device establish an online, a device selection communication instruction containing device online information is transmitted to the logic processing module, so that the logic processing module analyzes the data processing device to be established by the management control module according to a device selection comparison table, and triggers to switch the serial communication interface corresponding to the data processing device to be in communication connection with the management control module so as to establish the online.
Description
Technical Field
The present invention relates to a communication interface control system and method, and more particularly, to a communication interface control system and method for controlling a serial communication interface.
Background
With the advance of network technology, servers play an indispensable role in human life, generally speaking, an information transmission protocol of a serial communication interface (I2C) is commonly used in a server system, and the server system includes a plurality of data processing devices, and generally communicates with the plurality of data processing devices through a serial communication interface multitasking module including a serial communication interface.
Referring to fig. 1, fig. 1 is a block diagram of a communication interface system in the prior art. As shown in fig. 1, the communication interface system PA1 includes a management control module PA11 and a serial communication interface multitasking module PA12, wherein the serial communication interface multitasking module PA12 includes a plurality of serial communication interfaces PA121, PA122, PA123 and PA124, and is communicatively connected to the management control module PA11, each of the serial communication interfaces PA121, PA122, PA123 and PA124 is communicatively connected to the data processing devices PA2, PA3, PA4 and PA5, respectively, and the serial communication interface multitasking module PA12 may be, for example, a packaged chip of 74HC4052 PW.
When the management control module PA11 wants to connect with one of the data processing devices PA2, PA3, PA4 and PA5, the management control module PA11 will generally perform switching to connect the corresponding serial communication interfaces PA121, PA122, PA123 and PA124, so as to establish the connection. However, in practical applications, the data processing apparatuses PA2, PA3, PA4 and PA5 are not only four as shown in the embodiments, and sometimes may be even tens of, but when the serial communication interfaces PA121, PA122, PA123 and PA124 of the serial communication interface multitasking processing module PA12 are limited, if the number of the online data processing apparatuses PA2, PA3, PA4 and PA5 needs to be increased, the number of the serial communication interface multitasking processing modules PA12 needs to be increased, and because the number of pins of the management control module PA11 is limited, it is difficult to smoothly increase the number of the serial communication interface multitasking processing modules PA12 when the number of pins of the management control module PA11 is insufficient, so that the capability of increasing the number of data processing apparatuses is generally limited in the prior art. In addition, since the switching connection is performed only by the management control module PA11 in the related art, the switching in the plurality of data processing apparatuses is prone to be unstable and switching errors occur, and thus the related art still has room for improvement.
Disclosure of Invention
In view of the problems of limited capability of increasing the number of data processing devices and easy generation of switching errors, the management control module of the existing system is common in the prior art. It is a primary objective of the claimed invention to provide a communication interface control system and method thereof, which solves the above-mentioned problems of the prior art by further communicatively connecting a logic processing module to a serial communication interface multitasking processing module.
To achieve the above and other related objects, a first aspect of the present invention provides a communication interface control system, comprising: a serial communication interface (Inter-Integrated Circuit, I2C) multitasking module, comprising: a multitasking unit; the serial communication interfaces are electrically connected with the multitasking unit, each serial communication interface is provided with serial communication interface information and is respectively in communication connection with a data processing device with device connection information; a management control module, comprising: a first storage unit storing the device connection information of the data processing device communicatively connected to each serial communication interface; and a first processing unit, electrically connected to the first storage unit, for selecting the corresponding device connection information from the first storage unit when the first processing unit establishes a connection with the data processing device communicatively connected to one of the serial communication interfaces, and sending a device selection communication command including the corresponding device connection information through an information transmission protocol; and a logic processing module, comprising: a second storage unit for storing a device selection comparison table containing the corresponding relation between the serial communication interface information and the device on-line information; and a second processing unit, electrically connected to the second storage unit, communicatively connected to the first processing unit and the multitasking processing unit, for resolving the serial communication interface information corresponding to the corresponding device connection information according to the device selection comparison table when receiving the device selection communication command, and transmitting a trigger signal including the corresponding device connection information and the corresponding serial communication interface information to the multitasking processing unit; when the multitask processing unit receives the trigger signal, the serial communication interface corresponding to the corresponding serial communication interface information is switched to be in communication connection with the first processing unit, and the data processing device in communication connection with the corresponding serial communication interface is triggered through the corresponding serial communication interface to send an online signal to the first processing unit through the corresponding serial communication interface, so that the first processing unit and the data processing device establish online.
In an embodiment of the first aspect, the serial communication interface multitasking module is a serial communication interface Multiplexer (I2C Multiplexer, I2C MUX).
In an embodiment of the first aspect, the Management control module is a Baseboard Management Controller (BMC).
In an embodiment of the first aspect, the Logic processing module is a Complex Programmable Logic Device (CPLD).
In an embodiment of the first aspect, the information transfer protocol is a serial communication interface, a serial universal input/output interface, or a Low Pin Count (LPC) interface.
A second aspect of the present invention provides a communication interface control method implemented by the communication interface control system according to the first aspect of the present invention, the communication interface control method including: (a) selecting the device connection information corresponding to the data processing device to be connected from the first processing unit to the first storage unit by using the management control module, and sending a device selection communication instruction containing the corresponding device connection information through the information transmission protocol; (b) receiving the device selection communication instruction by using the second processing unit of the logic processing module, enabling the logic processing module to resolve the serial communication interface information corresponding to the corresponding device online information according to the device selection comparison table, and sending the trigger signal containing the corresponding device online information and the corresponding serial communication interface information; and (c) receiving the trigger signal by using the multitask processing unit, wherein the multitask processing unit switches the serial communication interface corresponding to the corresponding serial communication interface information into communication connection with the first processing unit, and triggers the data processing device in communication connection with the corresponding serial communication interface through the corresponding serial communication interface to send the online signal to the first processing unit through the corresponding serial communication interface so as to enable the first processing unit and the data processing device to establish the online.
In an embodiment of the second aspect, the serial communication interface multitasking module is a serial communication interface Multiplexer (I2C Multiplexer, I2C MUX).
In an embodiment of the second aspect, the Management control module is a Baseboard Management Controller (BMC).
In an embodiment of the second aspect, the Logic processing module is a Complex Programmable Logic Device (CPLD).
In an embodiment of the second aspect, the information transfer protocol is a serial communication interface, a serial universal input/output interface, or a Low Pin Count (LPC) interface.
As described above, according to the communication interface control system and method thereof provided by the present invention, since the logic processing module is communicatively connected to the serial communication interface multitasking processing module and the serial communication interface is switched and communicated through the logic processing module, the management control module can hold more pins for connection of other functional devices, and can effectively solve the problem of switching errors.
Drawings
Fig. 1 is a block diagram of a communication interface system in the prior art.
Fig. 2 is a block diagram of a communication interface control system according to a preferred embodiment of the present invention.
Fig. 3 is a flowchart illustrating a communication interface control method according to a preferred embodiment of the invention.
Description of the element reference numerals
PA1 communication interface system
PA11 management control module
PA12 serial communication interface multitask processing module
PA121, PA122, PA123, PA124 serial communication interface
PA2, PA3, PA4 and PA5 data processing device
1 communication interface control system
11 serial communication interface multitasking module
111 multitasking unit
112, 113, 114, 115 serial communication interface
12 management control module
121 first storage unit
1211, 1212, 1213, 1214 device connection information
122 first processing unit
13 logic processing module
131 second storage unit
1311 device selection reference table
132 second processing unit
2, 3, 4, 5 data processing device
S1 device selection communication command
S2 trigger signal
S3 online signal
S101-S103
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to scale, which is intended merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Referring to fig. 2, fig. 2 is a block diagram of a communication interface control system according to a preferred embodiment of the invention. As shown in the figure, the communication interface control system 1 provided by the present invention includes an Inter-Integrated Circuit (I2C) multitasking module 11, a management control module 12 and a logic processing module 13.
The serial communication interface multitasking module 11 is, for example, a serial communication interface Multiplexer (I2C Multiplexer, I2C MUX), and includes a multitasking unit 111 and a plurality of serial communication interfaces 112, 113, 114 and 115. The multitasking unit 111 may be, for example, a conventional processor, the serial communication interfaces 112, 113, 114 and 115 are electrically connected to the multitasking unit 111, and each of the serial communication interfaces 112, 113, 114 and 115 has a serial communication interface information respectively and is communicatively connected to a data processing device 2, 3, 4 and 5 having a device connection information respectively.
The data Processing devices 2, 3, 4, and 5 are, for example, one of a thermal sensor, a connection slot, a hard disk, a processor (e.g., a Central Processing Unit (CPU), a Micro Controller Unit (MCU)), and a south bridge chip, but the embodiments are not limited thereto. In the preferred embodiment of the present invention, the serial communication interface 112 is communicatively connected to the data processing device 2, the serial communication interface 113 is communicatively connected to the data processing device 3, the serial communication interface 114 is communicatively connected to the data processing device 4, and the serial communication interface 115 is communicatively connected to the data processing device 5.
In addition, the communication connection referred to in the preferred embodiment of the present invention is a wired communication connection, but may be a wireless communication connection in other embodiments. The serial communication interface information is, for example, network address information, and the device connection information is, for example, a device equipment number, a device name, and a device model, but is not limited thereto.
The Management control module 12 is, for example, a Baseboard Management Controller (BMC), and includes a first storage unit 121 and a first processing unit 122. The first storage unit 121 is, for example, an existing memory, and stores device connection information of the data processing devices 2, 3, 4, and 5 communicatively connected to the serial communication interfaces 112, 113, 114, and 115. The first processing unit 122, which may be a conventional processor, is electrically connected to the first storage unit 121.
The Logic processing module 13 is, for example, a Complex Programmable Logic Device (CPLD), and includes a second storage unit 131 and a second processing unit 132. The second storage unit 131 may be, for example, an existing memory and stores a device selection look-up table 1311 including a correspondence relationship between each serial communication interface information and each device connection information, that is, the second storage unit 131 stores the serial communication interface information of each serial communication interface 112, 113, 114, and 115 and the device connection information of the data processing devices 2, 3, 4, and 5 and stores the same as the device selection look-up table 1311 in a correspondence relationship.
In the preferred embodiment of the present invention, the serial communication interface information of the serial communication interface 112 may be defined as, for example, serial communication interface information a, the serial communication interface information of the serial communication interface 113 may be defined as, for example, serial communication interface information B, the serial communication interface information of the serial communication interface 114 may be defined as, for example, serial communication interface information C, the serial communication interface information of the serial communication interface 115 may be defined as, for example, serial communication interface information D, the device connection information of the data processing device 2 may be defined as device connection information 1211, the device connection information of the data processing device 3 may be defined as device connection information 1212, the device connection information of the data processing device 4 may be defined as device connection information 1213, the device connection information of the data processing device 5 may be defined as device connection information 1214, and the device selection lookup table 1311 may be, for example, as the following table, but is not limited thereto.
Device selection look-up table
| Serial communication interface information | Device online information |
| Serial communication interface information A | |
| Serial communication interface information B | |
| Serial communication interface information C | |
| Serial communication interface information D | Device |
The second processing unit 132 may be a conventional processor, is electrically connected to the second storage unit 131, and is communicatively connected to the first processing unit 122 and the multitasking unit 111.
When the first processing unit 122 of the management control module 12 wants to establish a connection with the data processing device 2 communicatively connected to one of the serial communication interfaces 112, 113, 114 and 115 (the serial communication interface 112 is taken as an example below), it selects the corresponding device connection information 1211 from the first storage unit 121, and sends a device selection communication command S1 including the corresponding device connection information 1211 through an information transmission protocol. The information transmission protocol may be, for example, one of a serial communication interface, a serial general input/output interface, and a Low Pin Count (LPC) interface, but is not limited thereto in other embodiments.
When receiving the device selection communication command S1, the second processing unit 132 parses the serial communication interface information a corresponding to the corresponding device connection information 1211 according to the device selection lookup table 1311, and transmits a trigger signal S2 including the corresponding device connection information 1211 and the corresponding serial communication interface information a to the multitask processing unit 111.
When the multitasking unit 111 receives the trigger signal S2, the serial communication interface 112 corresponding to the corresponding serial communication interface information a is switched to be in communication connection with the first processing unit 122, and the data processing device 2, which triggers the communication connection of the corresponding serial communication interface 112 through the corresponding serial communication interface 112, sends an online signal S3 to the first processing unit 122 through the corresponding serial communication interface 112, so that the first processing unit 122 and the data processing device 2 are online.
For another example, if the first processing unit 122 wants to establish a connection with the data processing device 3 communicatively connected to the serial communication interface 113, the first processing unit 122 selects the device connection information 1212 corresponding to the data processing device 3 from the first storage unit 121, and sends the device selection communication command S1 including the device connection information 1212 to the second processing unit 132 through the information transfer protocol.
After receiving the device selection communication command S1 containing the device connection information 1212, the second processing unit 132 finds out in the device selection lookup table 1311 that the device connection information 1212 corresponds to the serial communication interface information B, and further transmits a trigger signal S2 containing the device connection information 1212 and the serial communication interface information B to the multitasking unit 111.
When the multitasking unit 111 receives the trigger signal S2, the serial communication interface 113 corresponding to the serial communication interface information B is switched to be in communication connection with the first processing unit 122, and the data processing device 3 which is triggered by the serial communication interface 113 through the serial communication interface 113 and is in communication connection with the serial communication interface 113 sends the online signal S3 to the first processing unit 122 through the serial communication interface 113, so that the first processing unit 122 and the data processing device 3 are online.
Referring to fig. 3, fig. 3 is a flowchart illustrating a communication interface control method according to a preferred embodiment of the invention. The preferred embodiment of the present invention further provides a communication interface control method, which is implemented by using the communication interface control system shown in fig. 2, and includes the following steps S101 to S103, and in this embodiment, it is further exemplified that the first processing unit 122 wants to establish a connection with the data processing apparatus 4.
Step S101: the first processing unit 122 of the management control module 12 selects the device connection information 1213 corresponding to the data processing device 4 from the first storage unit 121, and sends a device selection communication command S1 including the device connection information 1213 through an information transfer protocol.
Step S102: the second processing unit 132 of the logic processing module 13 receives the device selection communication command S1, so that the logic processing module 13 parses the serial communication interface information C corresponding to the corresponding device connection information 1213 according to the device selection lookup table 1311, and sends a trigger signal S2 including the corresponding device connection information 1213 and the corresponding serial communication interface information C.
Step S103: when the multitasking unit 111 receives the trigger signal S2, the multitasking unit 111 switches the serial communication interface 114 corresponding to the corresponding serial communication interface information C to be in communication connection with the first processing unit 122, and triggers the data processing device 4, which is in communication connection with the corresponding serial communication interface 114 through the corresponding serial communication interface 114, to send the connection signal S3 to the first processing unit 122 through the corresponding serial communication interface 114, so that the first processing unit 122 is connected to the data processing device 4.
Other detailed descriptions of each step are already mentioned in the above paragraphs, and thus are not repeated herein.
In summary, after the communication interface control system and the method thereof provided by the present invention are adopted, since the logic processing module 13 is directly used to be communicatively connected to the serial communication interface multitasking processing module 11, and the serial communication interfaces 112, 113, 114 and 115 are switched and communicated through the logic processing module 13, the management control module 12 can hold more pins for connecting with other functional devices, and can effectively solve the problem of switching error.
The above detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and is not intended to limit the scope of the present invention to the particular embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the claims.
Claims (10)
1. A communication interface control system, comprising:
a serial communication interface multitasking module, comprising:
a multitasking unit; and
the serial communication interfaces are electrically connected with the multitasking unit, each serial communication interface is provided with serial communication interface information and is respectively in communication connection with a data processing device with device connection information;
a management control module, comprising:
a first storage unit storing the device connection information of the data processing device communicatively connected to each serial communication interface; and
a first processing unit electrically connected to the first storage unit for selecting the corresponding device connection information from the first storage unit when the first processing unit establishes a connection with the data processing device communicatively connected to one of the serial communication interfaces, and sending a device selection communication command including the corresponding device connection information through an information transmission protocol; and
a logic processing module, comprising:
a second storage unit for storing a device selection comparison table containing the corresponding relation between the serial communication interface information and the device on-line information; and
a second processing unit, electrically connected to the second storage unit, communicatively connected to the first processing unit and the multitasking processing unit, for resolving the serial communication interface information corresponding to the corresponding device connection information according to the device selection comparison table when receiving the device selection communication instruction, and transmitting a trigger signal including the corresponding device connection information and the corresponding serial communication interface information to the multitasking processing unit;
when the multitask processing unit receives the trigger signal, the serial communication interface corresponding to the corresponding serial communication interface information is switched to be in communication connection with the first processing unit, and the data processing device in communication connection with the corresponding serial communication interface is triggered through the corresponding serial communication interface to send an online signal to the first processing unit through the corresponding serial communication interface, so that the first processing unit and the data processing device establish online.
2. The communication interface control system according to claim 1, wherein: the serial communication interface multitasking module is a serial communication interface multiplexer.
3. The communication interface control system according to claim 1, wherein: the management control module is a substrate management controller.
4. The communication interface control system according to claim 1, wherein: the logic processing module is a complex programmable logic device.
5. The communication interface control system according to claim 1, wherein: the information transmission protocol is a serial communication interface, a serial universal input/output interface or a low-pin operation interface.
6. A communication interface control method implemented by the communication interface control system according to claim 1, the communication interface control method comprising:
(a) selecting the device connection information corresponding to the data processing device to be connected from the first processing unit to the first storage unit by using the management control module, and sending a device selection communication instruction containing the corresponding device connection information through the information transmission protocol;
(b) receiving the device selection communication instruction by using the second processing unit of the logic processing module, enabling the logic processing module to resolve the serial communication interface information corresponding to the corresponding device online information according to the device selection comparison table, and sending the trigger signal containing the corresponding device online information and the corresponding serial communication interface information; and
(c) and receiving the trigger signal by using the multitask processing unit, switching the serial communication interface corresponding to the corresponding serial communication interface information into communication connection with the first processing unit by using the multitask processing unit, and triggering the data processing device in communication connection with the corresponding serial communication interface through the corresponding serial communication interface to send the online signal to the first processing unit through the corresponding serial communication interface so as to enable the first processing unit and the data processing device to establish the online.
7. The communication interface control method according to claim 6, characterized in that: the serial communication interface multitasking module is a serial communication interface multiplexer.
8. The communication interface control method according to claim 6, characterized in that: the management control module is a substrate management controller.
9. The communication interface control method according to claim 6, characterized in that: the logic processing module is a complex programmable logic device.
10. The communication interface control method according to claim 6, characterized in that: the information transmission protocol is a serial communication interface, a serial universal input/output interface or a low-pin operation interface.
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