TW202218395A - Communication interface control system and method thereof - Google Patents

Abstract

A communication interface control system and method are provided in the present invention. The communication interface control system includes an interface multiplexing module including a plurality of Inter-Integrated Circuit interfaces, a management control module and a logic processing module. Each of the Inter-Integrated Circuit interfaces has an Inter-Integrated Circuit information and are communicated to a data processing device which has a device information. When the management control module is configured to connect to the communication device, the management control module transmits a device selection communication command to the logic processing module for making the logic processing module figure out the data processing device which the management control module chooses according to a device selection comparison table, then the logic processing module make the Inter-Integrated Circuit interface which is communicated to the data processing device communicate to the management control module so that the data processing device is communicated to the management control module.

Description

Communication interface control system and method thereof

The present invention relates to a communication interface control system and method thereof, in particular to a communication interface control system and method for controlling a serial communication interface.

With the advancement of network technology, servers play an indispensable role in people's lives. Generally speaking, a serial communication interface (Inter-Integrated Circuit, I ² C) is commonly used in server systems. the information transmission protocol, and the server system will therefore include a plurality of data processing devices, and in order to communicate with the plurality of data processing devices, generally through the serial communication interface including the serial communication interface multiplexing module for communication.

Please refer to the first figure. The first figure is a block diagram of the communication interface system of the prior art of the present invention. As shown in the first figure, the communication interface system PA1 includes a management control module PA11 and a serial communication interface multiplexing module PA12, wherein the serial communication interface multiplexing module PA12 includes a plurality of serial communication The interfaces PA121, PA122, PA123 and PA124 are connected to the management control module PA11 for communication, and the serial communication interfaces PA121, PA122, PA123 and PA124 are respectively connected to the data processing devices PA2, PA3, PA4 and PA5 for communication, and The serial communication interface multiplexing module PA12 can be, for example, a packaged chip of 74HC4052PW.

Among them, when the management control module PA11 wants to connect with one of the data processing devices PA2, PA3, PA4 and PA5, it generally switches and connects the corresponding serial communication interfaces PA121, PA122, PA123 and PA124 by itself. in order to achieve the purpose of establishing a connection. However, in practice, the data processing devices PA2, PA3, PA4 and PA5 are not only the four shown in the embodiment, but there may even be dozens in general. In the case of limited serial communication interfaces PA121, PA122, PA123 and PA124, if you need to add more connected data processing devices PA2, PA3, PA4 and PA5, you need to add more and use the serial communication interface multiplexing module PA12 However, due to the limited pins of the management control module PA11, if the pins of the management control module PA11 are insufficient, the number of the serial communication interface multiplexing module PA12 may not be able to be smoothly increased, so there is a general increase. The problem of the limited capacity of the number of data processing devices. In addition, since the prior art only uses the management and control module PA11 to perform switching connections, the switching under multiple data processing devices is prone to instability and switching errors, so the prior art still has room for improvement.

In view of the prior art, the management and control modules of the existing systems generally have the problems of limited ability to increase the number of data processing devices and easy switching errors. One of the main objectives of the present invention is to provide a communication interface control system and a method thereof to solve the problems described in the prior art by further communicatively connecting the logic processing module to the serial communication interface multiplexing processing module.

In order to solve the problem of the prior art, the present invention adopts the necessary technical means to provide a communication interface control system, which includes an Inter-Integrated Circuit (I ² C) multiplexing module, a management control module group and a logic processing module. The serial communication interface multiplexing processing module includes a multiplexing processing unit and a plurality of serial communication interfaces, the serial communication interfaces are electrically connected to the multiplexing processing unit, and each serial communication interface has a serial communication interface respectively information, and are respectively connected to a data processing device having a device connection information.

The management control module includes a first storage unit and a first processing unit, and the first storage unit stores the device connection information of the data processing devices communicated with each serial communication interface. The first processing unit is electrically connected to the first storage unit, and is used for retrieving the data from the first storage unit when a connection is established with the data processing device connected to one of the serial communication interfaces. The corresponding device connection information is sent, and a device selection communication command including the above-mentioned corresponding device connection information is sent out through an information transmission protocol.

The logic processing module includes a second storage unit and a second processing unit. The second storage unit stores a device selection comparison table including the corresponding relationship between each serial communication interface information and each device connection information. The second processing unit is electrically connected to the second storage unit, and is communicatively connected to the first processing unit and the multiplexing processing unit, and is used for analyzing the corresponding device according to the device selection comparison table when receiving the device selection communication command The serial communication interface information corresponding to the connection information, and a trigger signal including the above-mentioned corresponding device connection information and the corresponding serial communication interface information is sent to the multiplexing processing unit.

Wherein, when the multiplexing processing unit receives the trigger signal, the serial communication interface corresponding to the above-mentioned corresponding serial communication interface information is switched to be communicatively connected to the first processing unit, and the serial communication interface corresponding to the above-mentioned corresponding serial communication interface is switched. Trigger the data processing device connected to the corresponding serial communication interface to send a connection signal to the first processing unit through the corresponding serial communication interface, so as to establish a connection between the first processing unit and the data processing device .

On the basis of the above necessary technical means, an auxiliary technical means derived from the present invention is that the serial communication interface multiplexing processing module is a serial communication interface multiplexer (I ² C Multiplexer, I ² C MUX), management The control module is a baseboard management controller (Baseboard Management Controller, BMC), the logic processing module is a complex programmable logic device (Complex Programmable Logic Device, CPLD), and the information transmission protocol is a serial communication interface, serial universal One of the I/O interface and the Low Pin Count (LPC) interface.

In order to solve the problems of the prior art, the necessary technical means adopted by the present invention is to further provide a communication interface control method, which is implemented by using the above-mentioned communication interface control system. In the communication interface control method, firstly, the first processing unit of the management control module is used to obtain the device connection information corresponding to the data processing device to be connected to the first storage unit, and the information including the The device selection communication command of the above-mentioned corresponding device connection information. Then, the second processing unit of the logic processing module is used to receive the device selection communication command, so that the logic processing module parses the serial communication interface information corresponding to the above-mentioned corresponding device connection information according to the device selection comparison table, and sends out information including There are trigger signals for the above-mentioned corresponding device connection information and the corresponding serial communication interface information.

Finally, the multiplexing processing unit is used to receive the trigger signal, and the multiplexing processing unit switches the serial communication interface corresponding to the above-mentioned corresponding serial communication interface information to be communicatively connected to the first processing unit, and through the above-mentioned corresponding serial communication interface information The communication interface triggers the data processing device connected to the corresponding serial communication interface to send a connection signal to the first processing unit through the corresponding serial communication interface, so as to establish a connection between the first processing unit and the data processing device Wire.

On the basis of the above necessary technical means, an auxiliary technical means derived from the present invention is that the serial communication interface multiplexing processing module is a serial communication interface multiplexer (I ² C Multiplexer, I ² C MUX), management The control module is a baseboard management controller (Baseboard Management Controller, BMC), the logic processing module is a complex programmable logic device (Complex Programmable Logic Device, CPLD), and the information transmission protocol is a serial communication interface, serial universal One of the I/O interface and the Low Pin Count (LPC) interface.

As mentioned above, in the communication interface control system and method provided by the present invention, since the logic processing module is used to communicate with the serial communication interface multiplexing module, and the logic processing module is switched to connect to the serial communication interface, Therefore, the management control module can retain more pins for connection with other functional devices, and can effectively solve the problem of switching errors.

The specific embodiments of the present invention will be described in more detail below with reference to the schematic diagrams. The advantages and features of the present invention will become more apparent from the following description and the scope of the claims. It should be noted that the drawings are all in a very simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

Please refer to the second figure, which is a block diagram of a communication interface control system provided by a preferred embodiment of the present invention. As shown in the figure, the communication interface control system 1 provided by the present invention includes a serial communication interface (Inter-Integrated Circuit, I ² C) multiplexing module 11 , a management control module 12 and a logic processing module Group 13.

The serial communication interface multiplexing module 11 is, for example, a serial communication interface multiplexer (I ² C Multiplexer, I ² C MUX), and includes a multiplexing unit 111 and a plurality of serial communication interfaces 112 and 113 , 114 and 115. The multiplexing processing unit 111 can be, for example, an existing processor, the serial communication interfaces 112 , 113 , 114 and 115 are electrically connected to the multiplexing processing unit 111 , and the serial communication interfaces 112 , 113 , 114 and 115 respectively have A series of communication interface information are respectively connected to a data processing device 2, 3, 4 and 5 having a device connection information.

The data processing devices 2 , 3 , 4 and 5 are, for example, thermal sensors, connecting slots, hard disks, processors (such as a central processing unit (CPU) and a microcontroller (MCU)) and At least one of Nanqiao wafers, but other embodiments are not limited thereto. In a 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 , 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 refers to a wired communication connection, but it can also be a wireless communication connection in other embodiments. In addition, the serial communication interface information is, for example, network address information, and the device connection information is, for example, device number, device name, and device model, but 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 the device connection information of the data processing devices 2 , 3 , 4 and 5 which are communicatively connected to the serial communication interfaces 112 , 113 , 114 and 115 . The first processing unit 122 can be, for example, an existing processor, and 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 can be, for example, an existing memory, and stores a device selection comparison table 1311 including the correspondence between the serial communication interface information and the connection information of each device, that is, the second storage unit 131 stores the serial The serial communication interface information of the serial communication interfaces 112 , 113 , 114 and 115 and the device connection information of the data processing devices 2 , 3 , 4 and 5 are stored in a corresponding relationship as the device selection comparison table 1311 .

Among them, in the preferred embodiment of the present invention, the serial communication interface information of the serial communication interface 112 can be defined as serial communication interface information A, for example, the serial communication interface information of the serial communication interface 113 can be defined as serial communication Interface information B, the serial communication interface information of the serial communication interface 114 can be defined as serial communication interface information C, for example, the serial communication interface information of the serial communication interface 115 can be defined as serial communication interface information D, for example, data processing The device connection information of device 2 can be defined as device connection information 1211, the device connection information of data processing device 3 can be defined as device connection information 1212, and the device connection information of data processing device 4 can be defined as device connection information The information 1213, the device connection information of the data processing device 5 can be defined as the device connection information 1214, and the device selection comparison table 1311 can be, for example, the following table, but not limited thereto. Serial Communication Interface Information Device Connection Information Serial Communication Interface Information A Device Connection Information 1211 Serial Communication Interface Information B Device Connection Information 1212 Serial Communication Interface Information C Device Connection Information 1213 Serial Communication Interface Information D Device Connection Information 1214

The second processing unit 132 can be an existing processor, and is electrically connected to the second storage unit 131 and communicatively connected to the first processing unit 122 and the multiplexing processing unit 111 .

The first processing unit 122 of the management control module 12 is to be connected to the data processing device 2 in communication with one of the serial communication interfaces 112 , 113 , 114 and 115 (the serial communication interface 112 is taken as an example below) When a connection is established, the first storage unit 121 retrieves the corresponding device connection information 1211, and sends a device selection communication command S1 including the above-mentioned 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-purpose input output interface, and a low pin count (LPC) interface, but other embodiments are not limited thereto.

When the second processing unit 132 receives the device selection communication command S1, it parses out the serial communication interface information A corresponding to the above-mentioned corresponding device connection information 1211 according to the device selection comparison table 1311, and sends an information A including the above-mentioned corresponding device connection information A. The device connection information 1211 and the trigger signal S2 of the corresponding serial communication interface information A are sent to the multiplexing processing unit 111 .

When the multiplexing processing unit 111 receives the trigger signal S2, the serial communication interface 112 corresponding to the above-mentioned corresponding serial communication interface information A is switched to be communicatively connected to the first processing unit 122, and the above-mentioned corresponding serial communication interface The communication interface 112 triggers the data processing device 2 communicatively connected to the corresponding serial communication interface 112 to send a connection signal S3 to the first processing unit 122 through the corresponding serial communication interface 112, so as to enable the first processing The unit 122 establishes a connection with the data processing device 2 .

For another example, if the first processing unit 122 wants to establish a connection with the data processing device 3 that is communicatively connected to the serial communication interface 113 , it retrieves the device connection corresponding to the data processing device 3 from the first storage unit 121 . information 1212, and send the device selection communication command S1 including the device connection information 1212 to the second processing unit 132 through the information transmission protocol.

After receiving the device selection communication command S1 including the device connection information 1212, the second processing unit 132 finds out in the device selection comparison table 1311 that the device connection information 1212 corresponds to the serial communication interface information B, and further includes The trigger signal S2 of the device connection information 1212 and the serial communication interface information B is sent to the multiplexing processing unit 111 .

When the multiplexing processing unit 111 receives the trigger signal S2, it switches the serial communication interface 113 corresponding to the serial communication interface information B to be communicatively connected to the first processing unit 122, and triggers the serial communication interface through the serial communication interface 113 The data processing device 3 communicatively connected by 113 sends the connection signal S3 to the first processing unit 122 through the serial communication interface 113 , so as to establish a connection between the first processing unit 122 and the data processing device 3 .

Please refer to FIG. 3 , which is a flowchart showing a communication interface control method provided by a preferred embodiment of the present invention. A preferred embodiment of the present invention also provides a communication interface control method, which is implemented by using the communication interface control system shown in the second figure, and includes the following steps S101 to S103, and in this embodiment, the first method is further used. It is an example that the processing unit 122 proposes to connect with the data processing device 4 .

Step S101 : Use the first processing unit 122 to the first storage unit 121 of the management control module 12 to retrieve the device connection information 1213 corresponding to the data processing device 4 , and send out the device including the corresponding device through the information transmission protocol The device of the connection information 1213 selects the communication command S1.

Step S102 : the second processing unit 132 of the logic processing module 13 is used to receive the device selection communication command S1 , so that the logic processing module 13 parses the series corresponding to the above-mentioned corresponding device connection information 1213 according to the device selection comparison table 1311 Communication interface information C, and send a trigger signal S2 including the above-mentioned corresponding device connection information 1213 and the corresponding serial communication interface information C.

Step S103: The multiplexing processing unit 111 is used to receive the trigger signal S2, and the multiplexing processing unit 111 switches the serial communication interface 114 corresponding to the serial communication interface information C corresponding to the above to be communicatively connected to the first processing unit 122, and The data processing device 4 communicatively connected to the above-mentioned corresponding serial communication interface 114 is triggered through the above-mentioned corresponding serial communication interface 114 to send the connection signal S3 to the first processing unit 122 through the above-mentioned corresponding serial communication interface 114 , so as to establish a connection between the first processing unit 122 and the data processing device 4 .

Wherein, other detailed descriptions of each step have been mentioned in the above paragraphs, so they are not repeated here.

In summary, after using the communication interface control system and method provided by the present invention, the logic processing module 13 is directly connected to the serial communication interface multiplexing processing module 11 for communication, and the logic processing module 13 The serial communication interfaces 112 , 113 , 114 and 115 are switched and connected, so the management control module 12 can keep more pins for connecting other functional devices, and can effectively solve the problem of switching errors.

Through the detailed description of the preferred embodiments above, it is hoped that the features and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various modifications and equivalent arrangements within the scope of the claimed scope of the present invention.

PA1: Communication Interface System PA11: Management Control Module PA12: Serial communication interface multiplexing module PA121, PA122, PA123, PA124: Serial communication interface PA2,PA3,PA4,PA5: Data processing device 1: Communication interface control system 11: Serial communication interface multiplexing module 111: Multiplex processing unit 112, 113, 114, 115: Serial Communication Interface 12: Management control module 121: The 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 comparison table 132: Second processing unit 2, 3, 4, 5: Data processing device S1: Device selection communication command S2: Trigger signal S3: connection signal S101-S103: Steps

The first figure is a block diagram showing the communication interface system of the prior art of the present invention; The second figure is a block diagram showing the communication interface control system provided by the preferred embodiment of the present invention; and Figure 3 is a flow chart showing a communication interface control method provided by a preferred embodiment of the present invention.

1: Communication interface control system

11: Serial communication interface multiplexing module

111: Multiplex processing unit

112, 113, 114, 115: Serial Communication Interface

12: Management control module

121: The 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 comparison table

132: Second processing unit

2, 3, 4, 5: Data processing device

S1: Device selection communication command

S2: Trigger signal

S3: connection signal

Claims (10)

A communication interface control system, comprising: a serial communication interface (Inter-Integrated Circuit, I ² C) multiplexing processing module, comprising: a multiplexing processing unit; and a plurality of serial communication interfaces, which are electrically connected In the multiplexing processing unit, each serial communication interface has a serial communication interface information, and is respectively connected to a data processing device with a device connection information; a management control module includes: a first a storage unit, which stores the device connection information of the data processing device communicated with each serial communication interface; and a first processing unit, which is electrically connected to the first storage unit and is used to communicate with the When the data processing device to which one of the serial communication interfaces is communicated establishes a connection, the corresponding connection information of the device is retrieved from the first storage unit, and an information including a device selection communication command having the above-mentioned corresponding device connection information; and a logic processing module, comprising: a second storage unit, which stores a data file containing each serial communication interface information and each device connection information a corresponding device selection comparison table; and a second processing unit electrically connected to the second storage unit and communicatively connected to the first processing unit and the multiplexing processing unit for receiving the device selection communication When the command is given, the serial communication interface information corresponding to the above-mentioned corresponding device connection information is parsed according to the device selection comparison table, and a file including the above-mentioned corresponding device connection information and the corresponding serial communication interface information is parsed. A trigger signal of the serial communication interface information is sent to the multiplexing processing unit; wherein when the multiplexing processing unit receives the triggering signal, the serial communication interface corresponding to the serial communication interface information corresponding to the above is switched To be communicatively connected to the first processing unit, and trigger the data processing device to which the above-mentioned corresponding serial communication interface is communicatively connected through the above-mentioned corresponding serial communication interface to send the data through the above-mentioned corresponding serial communication interface A connection signal is sent to the first processing unit, so as to establish the connection between the first processing unit and the data processing device. The communication interface control system according to claim 1, wherein the serial communication interface multiplexing processing module is a serial communication interface multiplexer (I2C Multiplexer, I2C MUX). The communication interface control system of claim 1, wherein the management control module is a baseboard management controller (BMC). The communication interface control system according to claim 1, wherein the logic processing module is a Complex Programmable Logic Device (CPLD). The communication interface control system of claim 1, wherein the information transmission protocol is one of a serial communication interface, a serial general-purpose input output interface, and a low pin count (LPC) interface. A communication interface control method is implemented using the communication interface control system as described in claim 1, and includes the following steps: (a) Use the first processing unit of the management control module to retrieve the device connection information corresponding to the data processing device that wants to establish the connection to the first storage unit, and send it through the information transmission protocol output the device selection communication command containing the above-mentioned corresponding device connection information; (b) using the second processing unit of the logic processing module to receive the device selection communication command, so that the logic processing module parses the string corresponding to the above-mentioned corresponding device connection information according to the device selection comparison table serial communication interface information, and send the trigger signal including the above-mentioned corresponding device connection information and the corresponding serial communication interface information; and (c) using the multiplexing processing unit to receive the trigger signal, the multiplexing processing unit switches the serial communication interface corresponding to the serial communication interface information corresponding to the above to be communicatively connected to the first processing unit, and Trigger the data processing device to which the corresponding serial communication interface is connected through the above-mentioned corresponding serial communication interface to send the connection signal to the first processing unit through the above-mentioned corresponding serial communication interface , so as to establish the connection between the first processing unit and the data processing device. The communication interface control method according to claim 6, wherein the serial communication interface multiplexing module is a serial communication interface multiplexer (I2C Multiplexer, I2C MUX). The communication interface control method according to claim 6, wherein the management control module is a baseboard management controller (BMC). The communication interface control method according to claim 6, wherein the logic processing module is a Complex Programmable Logic Device (CPLD). The communication interface control method of claim 6, wherein the information transmission protocol is one of a serial communication interface, a serial general-purpose input output interface, and a low pin count (LPC) interface.

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