WO2023082622A1

WO2023082622A1 - Method for designing communication module having master and slave devices compatible, and apparatus

Info

Publication number: WO2023082622A1
Application number: PCT/CN2022/097637
Authority: WO
Inventors: 李升根
Original assignee: 深圳市广和通无线股份有限公司
Priority date: 2021-11-09
Filing date: 2022-06-08
Publication date: 2023-05-19
Also published as: CN114328329A

Abstract

A method for designing a communication module having master and slave devices compatible. The method is applied to an electronic device, wherein the electronic device is provided with a communication module, and the communication module is used for providing a network for the electronic device. The method comprises: on the basis of a first value of a flag bit, determining the working mode of a communication mode to be a first mode, wherein the working mode comprises a peripheral component interconnect express (PCIe) master device mode and a PCIe slave device mode, and the flag bit is a flag bit of a memory of the communication module; when the first mode is different from a second mode, changing the value of the flag bit from the first value to a second value; and on the basis of the second value, determining the working mode of the communication module to be the second mode.

Description

A communication module design method and device compatible with master-slave devices

This application claims the priority of the Chinese patent application with the application number 2021113218669 and the title of the invention "a communication module design method and device compatible with master-slave equipment" submitted to the China Patent Office on November 09, 2021, the entire content of which is passed References are incorporated in this application.

technical field

The embodiments of the present application relate to the technical field of communication, and in particular, to a method and device for designing a communication module compatible with master-slave devices.

Background technique

A wireless network card is a wireless terminal device that can access the Internet through a wireless network connection under the wireless coverage of a wireless local area network. That is, electronic devices do not need to be connected to network cables to achieve Internet access. Wireless network cards can be divided into external network cards and built-in network cards. The built-in network card may be a wireless network card integrated in electronic devices such as notebooks, smart phones, and tablet computers. External network cards can be divided into universal serial bus (USB) wireless network cards and peripheral component interconnect (PCI) wireless network cards, etc. External network cards can be inserted into notebooks and other electronic devices to provide network services.

However, when an external network card provides a network, a host computer is always required, and the external network card can be used as a PCIe slave device. For example, the wireless external network card of the PCIe-M.2 keyB communication module type needs to have a built-in network card inside the tablet as the upper computer, and the external network card can only provide the network when it is connected to the built-in network card, otherwise it cannot provide network.

Contents of the invention

The embodiment of the present application discloses a master-slave compatible communication module design method and device, which are used to expand the application range of the communication module.

The first aspect discloses a communication module design method compatible with master-slave equipment, including: the method is applied to electronic equipment, the electronic equipment is provided with a communication module, and the communication module is used to provide a network for the electronic equipment, including : based on the first value of the flag bit, the operating mode of the communication module is determined as the first mode, the operating mode includes a high-speed serial computer expansion bus PCIe master mode and a PCIe slave mode, and the flag bit is the A flag bit of the memory of the communication module; when the first mode is different from the second mode, change the value of the flag bit from the first value to a second value; change the value of the flag bit based on the second value The working mode of the communication module is determined as the second mode.

In the embodiment of the present application, the values of different flag bits in the electronic device definition memory represent different working modes. By changing the value of the flag bit to switch the working mode, the PCIe-M.2 keyB communication module can not only work on the PCIe slave Device mode, can also switch to PCIe master device mode. In this way, the working mode can be freely switched according to user needs, so as to expand the scope of use of the PCIe-M.2 keyB communication module and improve the flexibility of use.

As a possible implementation manner, the method further includes: receiving the second mode input by a user.

In the embodiment of the present application, the electronic device can determine which mode needs to be switched from the current working mode according to the working mode input by the user, so as to improve user operability and switching flexibility.

As a possible implementation manner, the second mode is a mode stored in the electronic device.

In the embodiment of the present application, the second mode may also be a working mode already stored in the electronic device. When the electronic device obtains the second mode, it can further determine whether the second mode is the same as the first mode, and then determine whether switching is required. Operating mode. As a result, the electronic device can switch working modes more autonomously, and the operation that the user participates in is simpler, thereby improving user experience.

As a possible implementation manner, after changing the value of the flag bit from the first value to a second value, the method further includes: storing the second value; restarting the electronic device.

In the embodiment of the present application, after the electronic device changes the flag bit from the first value to the second value, the electronic device can be restarted (restart or power off and then on). The value determines the mode of operation so that switching can be done. Rebooting at this point is a necessary step in the handover process so that the integrity of the method can be guaranteed.

As a possible implementation manner, in the case that the first mode is different from the second mode, changing the value of the flag bit from the first value to a second value includes: When the first mode is different from the second mode, an AT command is generated; according to the AT command, the value of the flag bit is changed from the first value to a second value.

As a possible implementation manner, in the case that the first mode is different from the second mode, changing the value of the flag bit from the first value to the second value includes: receiving user input A switching instruction, where the switching instruction is an instruction for the user to instruct to switch the current working mode when the first mode is different from the second mode; in response to the switching instruction, the value of the flag is changed from the second One value is changed to the second value.

In this embodiment of the application, the user can make a judgment on whether to switch according to the current first mode and the second mode. When the user determines that the current working mode needs to be switched, the user needs to input a switching command (for example, click the control to confirm switching, or enter switch command). When the electronic device receives a switching instruction, it can perform switching in response to the instruction. In the above process, the judgment of whether to switch is in the hands of the user, which can improve user experience.

As a possible implementation manner, the first mode is the PCIe slave mode, the second mode is the PCIe master mode, and the flag bit is the register value of the memory of the communication module or the custom pin voltage average value.

The second aspect discloses an electronic device, comprising: one or more processors and one or more memories, the one or more memories are used to store computer program codes, the computer program codes include computer instructions, the electronic device is configured There is a communication module, the communication module is used to provide a network for the electronic device, when the one or more processors execute the computer instructions, so that the electronic device performs: based on the first value of the flag bit will The operating mode of the communication module is determined as the first mode, the operating mode includes a PCIe master mode and a PCIe slave mode, and the flag bit is a flag bit of the memory of the communication module; in the first mode and If the second mode is different, changing the value of the flag bit from the first value to a second value; determining the working mode of the communication module as the second mode based on the second value.

In the embodiment of the present application, the electronic device defines different values of the flags to indicate different working modes, and by changing the value of the flags to switch the working mode, the PCIe-M.2 keyB communication module can not only work in the PCIe slave mode , you can also switch to PCIe master mode. In this way, the working mode can be freely switched according to user needs, so as to expand the scope of use of the PCIe-M.2 keyB communication module and improve the flexibility of use.

As a possible implementation manner, the electronic device further executes: receiving the second mode input by a user.

As a possible implementation manner, after the value of the flag bit is changed from the first value to a second value, the electronic device further executes: storing the second value; restarting the electronic device.

As a possible implementation manner, when the first mode is different from the second mode, the electronic device changes the value of the flag bit from the first value to the second value, and specifically executes: When the first mode is different from the second mode, an AT command is generated; according to the AT command, the value of the flag bit is changed from the first value to a second value.

As a possible implementation manner, when the first mode is different from the second mode, the electronic device changes the value of the flag bit from the first value to a second value, and specifically executes:

receiving a switching instruction input by the user, the switching instruction is an instruction for the user to switch the current working mode when the first mode is different from the second mode; in response to the switching instruction, set the value of the flag to Change from the first value to the second value.

The third aspect discloses a computer-readable storage medium, where computer programs or computer instructions are stored in the computer-readable storage medium, and when the computer programs or computer instructions are executed, the above-mentioned first aspect or the first aspect is realized The method for designing a communication module compatible with master-slave devices disclosed in any of the implementation modes.

A fourth aspect discloses a computer program product, the computer program product includes computer program code, and when the computer program code is executed, the above-mentioned method is executed.

Description of drawings

Fig. 1 is a schematic structural diagram of a PCIe device disclosed in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an electronic device and a communication module disclosed in an embodiment of the present application;

Fig. 3 is a schematic structural diagram of another PCIe device disclosed in the embodiment of the present application;

Fig. 4 is a schematic flowchart of a method for designing a communication module compatible with master-slave devices disclosed in the embodiment of the present application;

Fig. 5 is a schematic flowchart of another master-slave device-compatible communication module design method disclosed in the embodiment of the present application;

FIG. 6 is a schematic structural diagram of another PCIe device disclosed in the embodiment of the present application.

Detailed ways

The embodiment of the present application discloses a master-slave compatible communication module design method and device, which are used to expand the application range of the communication module. The details will be described below.

In order to facilitate the understanding of a master-slave device-compatible communication module design method and device disclosed in the embodiments of the present application, the related technologies involved in the embodiments of the present application are firstly introduced below:

1. PCIe-M.2 keyB communication module

The PCIe-M.2 keyB communication module is a module whose interface type provides network services for PCIe-M.2 keyB users. For example, network card module, etc.

The high-speed serial computer expansion bus standard (peripheral component interconnect express, PCIe) is an end-to-end interconnection protocol. Two ends of the PCIe bus can be connected to two devices (for example, connecting device A and device B). Data transmission can be performed via the PCIe bus.

M.2 is an interface/slot type, and M.2 interfaces and slots can be divided into two types: keyB (socket2) and keyM (socket3). Among them, keyB can support PCI-Ex2, SATA interface, keyM can support PCI-Ex4, and the speed of keyM interface is much higher than keyB.

2. PCIe master device and PCIe slave device

The PCIe-M.2 keyB communication module is a PCIe device, and the PCIe device can be divided into a PCIe master device and a PCIe slave device. A PCIe master device is a PCIe device that provides a clock, and correspondingly, a PCIe slave device is a PCIe device that receives a clock.

FIG. 1 is a schematic structural diagram of a PCIe device disclosed in an embodiment of the present application. As shown in FIG. 1 , a PCIe master device and a PCIe slave device can be connected to each other through a PCIe interface, so as to transmit data to each other. All PCIe slave devices need to be connected to the PCIe master device, and the PCIe master device can be called the host computer of its PCIe slave device.

The PCIe master device and the PCIe slave device can be called different modes correspondingly, the mode of the PCIe slave device (PCIe slave device mode) is called the end point (EP) mode (EP mode), and the mode of the PCIe master device (PCIe master device mode) is called root complex (root complex, RC) mode (RC mode).

The structure of a PCIe device involved in the embodiment of the present application is described below.

For the convenience of expression, the PCIe-M.2 keyB communication module can be referred to as the communication module for short.

Fig. 2 is a schematic structural diagram of an electronic device and a communication module disclosed in an embodiment of the present application. As shown in FIG. 2 , the electronic device can be connected to the communication module, for example, the communication module can be inserted into the electronic device, and the electronic device can read and write to the communication module. The communication module may include a main control chip, a memory and a PCIe interface. The main control chip can be coupled with the memory and the PCIe interface. When the main control chip of the communication module can read the computer program in the memory, and execute related commands according to the read program. The electronic device can control the communication module through the main control chip.

Exemplarily, FIG. 2 is a schematic structural diagram of a PCIe interface module disclosed in the embodiment of the present application. The PCIe interface module may be a specific type of PCIe interface in FIG. 2 . For example, FM150-M.2-5G module. One side of the M150-M.2-5G module can be a PCIe physical interface, through which another PCIe device can be connected. The other side of the FM150-M.2-5G module is the interface connected to the main control chip (To CPU), which can include three PCIe control signal pins (reset PERST signal, wake-up PWAKE signal, clock request CLKREQ signal) . The interface is coupled with a two-way level shift module. The bidirectional level conversion module is coupled with the left PCIe physical interface through the M.2 interface. Thus, the two ends of the PCIe interface module of the communication module can be respectively coupled to the main control chip of the communication module and another PCIe device (which can be a PCIe master device or a PCIe slave device).

When the communication module is connected to the electronic device and is in use, the communication module usually acts as a PCIe slave device (EP mode). Figure 3 is a schematic structural diagram of another PCIe device disclosed in the embodiment of the present application. As shown in Figure 3, the electronic device can be used as the PCIe master device in the PCIe device, the communication module can be used as the PCIe slave device, and the electronic device and PCIe-M. 2 keyB communication modules can be connected through the PCIe interface.

The PCIe-M.2 keyB communication module can be used in different scenarios.

In a possible scenario, in a personal computer (personal computer, PC), the PCIe-M.2 keyB communication module can be used as a network card device. The PCIe-M.2 keyB communication module can be plugged into the PC, and this module can be controlled by the PC to realize the wireless Internet access of the PC. At this time, the upper computer is an electronic device PC.

In another possible scenario, the PCIe-M.2 keyB communication module can be used in customer premise equipment (CPE), which can demodulate 4G or 5G wireless signals in the public network and become a baseband The signal is sent to the main control chip through the PCIe interface. The main control chip then sends the demodulated baseband signal to the WiFi module, thereby forming a WiFi hotspot, and then allowing the terminal device to access the Internet through WiFi. At this time, the electronic device represented by the host computer is the built-in main control chip of the CPE.

During the use of the above-mentioned PCIe-M.2 keyB communication module, this communication module is used as a PCIe slave device. However, the PCIe slave device needs a corresponding host computer. In the absence of a host computer, the PCIe- The M.2 keyB communication module cannot be used. In addition, due to the different needs of users, that is, some users need the PCIe-M.2 keyB communication module as a PCIe slave device to provide a network for electronic devices, and some users need the PCIe-M.2 keyB communication module to be mounted as a PCIe master device other slave devices. Therefore, the PCIe-M.2 keyB communication module is only used as a PCIe slave device, and the use of the PCIe-M.2 keyB communication module is relatively limited.

In view of the above problems, in the embodiment of this application, the electronic device can change the flag bit and the corresponding working mode of the PCIe-M.2 keyB communication module according to user needs. For example, when the flag bit is 0, the electronic device can determine the current EP mode (PCIe slave mode) of the PCIe-M.2 keyB communication module; when the flag bit is 1, the electronic device can determine the PCIe-M.2 keyB The communication module currently uses RC mode (PCIe master mode). In the case of needing to change the mode, the electronic device can modify the flag bit of the PCIe-M.2 keyB communication module to switch the working mode (the working mode includes EP mode (that is, PCIe slave mode), and RC mode (that is, PCIe master mode) )). In this way, the electronic device can freely switch the mode of the communication device to expand the scope of use of the PCIe-M.2 keyB communication module.

Please refer to FIG. 4 . As shown in FIG. 4 , it is a schematic flowchart of a method for designing a master-slave device-compatible communication module disclosed in the embodiment of the present application. Among them, the method can be applied to electronic equipment. The electronic device is connected to the communication module, and the connection method can refer to the relevant description in FIG. 2 . A method for designing a communication module compatible with master-slave devices may include the following steps:

S401. The communication module determines that the working mode of the communication module is the first mode based on the value of the flag bit.

The working modes of the communication module may include a PCIe master mode (RC mode) and a PCIe slave mode (EP mode). When the electronic device is turned on, the communication module is also turned on. The working mode of the communication module will be determined when the electronic device is turned on.

The electronic device can obtain the value of the flag bit of the working mode in the memory through the main control chip of the communication module, and at this time, the value of the flag bit obtained is the first value. When the electronic device acquires the first value of the flag bit, the electronic device can determine the working mode of the communication module based on the first value. Wherein, the value (first value) of the above-mentioned flag bit is used to represent the operating mode used by the communication module, and the first value can be a value indicating that the PCIe operating mode of the communication module is the PCIe master mode, or it can be a value representing the communication module The PCIe working mode is the value of the PCIe slave mode, and the first value of the flag bit can only represent one of the two working modes.

The following describes two situations in which the working mode is determined based on the first value of the flag bit:

In a possible situation, when the first value of the flag bit obtained by the electronic device indicates that the working mode is PCIe slave mode, the electronic device can determine that the current communication module working mode is PCIe slave mode, and can pass this work in one mode. For example, when the electronic device reads the first value of the flag bit of the memory through the main control chip to "0" (the value of the flag bit is "1" to indicate the PCIe master mode, and the value of the flag bit is "0" Indicates PCIe slave mode), the communication module can enter PCIe slave mode to work.

In another possible situation, when the first value of the flag bit or level value acquired by the electronic device indicates that the working mode is the PCIe master mode, the electronic device can determine that the current communication module working mode is the PCIe master mode , and can work through this mode. For example, when the first value of the flag bit of the memory read by the communication module through the main control chip is "1" (the value of the flag bit is "1" indicating the PCIe master mode, and the value of the flag bit is "0" Indicates PCIe slave mode), the communication module can enter the PCIe master mode to work.

In the above two cases, the flag bit can be a register value of a memory of the communication module or a level value of a user-defined pin. In a possible implementation manner, the flag bit may be a register value of the memory of the communication module, that is, a certain bit or several bits in the memory, and different flag bit values may represent different working modes. For example, the electronic device can set a flag in the memory, "1" indicates the PCIe master mode, and "0" indicates the PCIe slave mode. Here is just an example to illustrate the number of possible flags of the flag bit, and the specific flag bit expression method does not constitute a limitation. In another possible implementation manner, the flag bit may be a high or low value of a user-defined pin level of the communication module. For example, when the level is high (1), it indicates the PCIe master mode, and when the level is low (0), it indicates the PCIe slave mode.

It should be noted that, when the electronic device is powered on, the working mode of the communication module has also been determined. The computer program of the working mode included in the communication module should exist in both the PCIe master mode and the PCIe slave mode (compatible with the PCIe master-slave mode). That is, the main control chip of the communication module supports both RC mode and EP mode.

S402. The electronic device determines whether the first mode is the same as the second mode. If yes, end the current flow of FIG. 4; otherwise, execute step S403.

The second mode is a target working mode required by the communication mode, and the second mode may be a PCIe master mode or a PCIe slave mode.

The electronic device determines that the current working mode of the communication module is the first mode, and then can determine whether the current working mode is the second mode. In the case that the first mode is the same as the second mode, at this time, the communication module is already using the target working mode, and there is no need to switch. Therefore, the electronic device can end the current process of FIG. 4 . In the case that the first mode is different from the second mode, at this time, the working mode used by the communication module is not the target working mode, so the current working mode needs to be switched to the second mode, so S403 needs to be further executed.

The following describes two implementations for judging whether the first mode is the same as the second mode:

In a possible implementation manner, the electronic device may determine whether the two modes are the same based on the first mode and the second mode. The second mode may be fixed or variable. The second mode may be a working mode stored in the electronic device, or may be a working mode determined according to user needs. For example, when the user needs to adjust the second mode, the user may input the second mode information into the electronic device, and when the electronic device receives the second mode information input by the user, the second mode may be determined.

In another possible implementation manner, the user may determine whether the first mode is the same as the second mode according to the current working mode determined by the electronic device. In a different case, the user may input a switching instruction. The switch instruction is an instruction to switch the working mode of the current communication module. When the electronic device receives the switching instruction, it executes step S403 in response to the switching instruction. When the same situation exists, end the current process.

The following describes several situations for judging whether the first mode and the second mode are the same:

In a possible situation, when the first mode is the PCIe slave mode (the known target mode is the PCIe master mode), the electronic device may determine that the first mode is different from the second mode, and step S403 is performed.

In another possible situation, when the first mode is the PCIe slave mode (the known target mode is the PCIe slave mode), the electronic device may determine that the first mode is the same as the second mode, and end the current process.

In yet another possible situation, when the first mode is the PCIe master mode (the known target mode is the PCIe slave mode), the electronic device may determine that the first mode is different from the second mode, and step S403 needs to be performed.

In another possible situation, when the first mode is the PCIe master mode (the known target mode is the PCIe master mode), the electronic device may determine that the first mode is the same as the second mode, and end the current process.

It should be noted that the target mode can be determined by the working mode set by the user or by the electronic device. The target mode can be changed. For example, the target mode is PCIe slave mode, but the user needs to use PCIe master mode, and the target mode can be set as PCIe master mode.

S403. The electronic device changes the value of the flag bit from the first value to a second value, and determines the working mode of the communication module as the second mode based on the second value.

The electronic device can change the value of the flag bit of the memory in the current communication module from the first value to the second value, and the second value is the value of the flag bit indicating that the working mode is the second mode. For example, when the first value of the flag bit is 0, the electronic device can change the first value to the second value 1 ("1" means PCIe master mode, and "0" means PCIe slave mode); In case the first value of the bit is 1, the electronic device may change the first value to a second value of 0.

The electronic device can generate an attention AT (Attention) command, and the AT command at this time is used to change the value of the flag bit of the communication module. Afterwards, the electronic device can send an AT command to the communication module. After the communication module receives the AT command, it can further execute the AT command through the main control chip, that is, the main control chip changes the flag bit of the current memory based on the AT command. Wherein, the first value is different from the second value.

After the value of the flag bit in the memory of the communication module is changed to the second value, the electronic device can be restarted (for example, shut down first and then restart or directly restart), and the communication module will re-read the memory in the process of restarting the electronic device. The flag bit is the second value, so as to determine its own working mode as the second mode. For a specific determination process, reference may be made to the relevant description of step S401. Wherein, the first value indicates that the working mode is the first mode, and the second value indicates that the working mode is the second mode. Therefore, in the process of determining its working mode, the communication module can complete the switching of the working mode.

Through the above-mentioned method embodiment, the communication module can switch the working mode, that is, the PCIe slave mode and the PCIe master mode can be switched. At this time, the communication module can be mounted on other PCIe master devices as a PCIe slave device; it can also be used as a PCIe The master device is used to connect to other PCIe slave devices. When free switching can be realized, the working mode of the communication module can better adapt to the needs of users to provide network services. so. The scope of use of the communication module can be expanded.

In addition, when the communication module cannot be used as a PCIe master device, PCIe must have a host computer and be connected to it. At this time, the system is more complicated and the cost is higher. It is the upper computer itself, which can simplify the system and reduce the cost.

In this embodiment of the present application, an electronic device may be any terminal device having communication capabilities, processing functions, and storage capabilities, such as a computer, a CPE, and the like. That is, the electronic device may be all possible devices that provide a network through the communication module, which is not limited here.

Exemplarily, according to the above method embodiment, a method for designing a communication module compatible with master and slave devices is specifically introduced. Please refer to FIG. 5 . FIG. 5 is a schematic flowchart of another method for designing a communication module compatible with master-slave devices disclosed in the embodiment of the present application. As shown in Figure 5, the design method of the communication module compatible with the master-slave device is as follows:

The memory and the main control chip in the communication module can be preset in advance. The pre-set master chip is compatible with PCIe master mode and PCIe slave mode. And a flag bit is preset in the memory of the communication module, and the two numbers of the flag bit can correspond to the PCIe master mode and the PCIe slave mode respectively. The default flag bit in the communication module is "0", which means the PCIe slave mode; and the flag bit is "1", which means the PCIe master mode.

The following describes the specific process of switching the working mode of the communication module of the electronic device.

S501. The electronic device determines a flag bit, and if the flag bit is "0", determines that the working mode is a PCIe slave mode.

When the electronic equipment is turned on, the communication module will also be turned on. During the above-mentioned startup process, the communication module reads that the default flag bit is (first value) "0", and the current working mode of the communication module according to the flag bit "0" is PCIe slave mode, that is, the PCIe in the main control chip of the communication module is set to slave mode.

S502. The electronic device changes the flag bit of the communication module, and changes the flag bit to the flag bit (second value) "1" of the PCIe master device mode.

After the boot is completed, when the user determines that the required working mode is PCIe master mode (target mode), and the current working mode is PCIe slave mode, the electronic device can change the flag bit of the communication module to "1", that is, modify it to the flag bit corresponding to the PCIe master mode.

S503. The communication module re-reads the flag bit, and if the flag bit is "1", determines that the working mode is the PCIe master mode.

After step S502 is completed, the electronic device can be restarted or restarted after shutdown. During the startup process, the communication module re-reads the flag as "1" and sets the working mode as PCIe master mode.

After the above switching process is completed, the communication module can mount other PCIe slave devices. Exemplarily, FIG. 6 is a schematic structural diagram of another PCIe device disclosed in the embodiment of the present application. As shown in FIG. 6, the FM150-M.2-5G communication module can be used as a PCIe master device and directly mounted externally through the PCIe interface PCIe slave device (RTL8111H). At this time, the FM150-M.2-5G communication module does not need a host computer, and can directly demodulate 4G and 5G signals into baseband signals, and send baseband signals to RTL8111H (PCIe slave device) through the PCIe interface. After the RTL8111H receives the baseband signal, it converts the baseband signal into a wired network card signal, and then can provide a network source for a PC or a WiFi router.

The specific implementation described above has further described the purpose, technical solutions and beneficial effects of the application in detail. It should be understood that the above description is only a specific implementation of the application, and is not intended to limit the scope of the application. Scope of protection: All modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of this application shall be included within the scope of protection of this application.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, DSL) or wireless (eg, infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state hard disk), etc.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments are realized. The processes can be completed by computer programs to instruct related hardware. The programs can be stored in computer-readable storage media. When the programs are executed , may include the processes of the foregoing method embodiments. The aforementioned storage medium includes: ROM or random access memory RAM, magnetic disk or optical disk, and other various media that can store program codes.

Claims

A communication module design method compatible with master-slave equipment, characterized in that the method is applied to electronic equipment, the electronic equipment is provided with a communication module, and the communication module is used to provide a network for the electronic equipment, including:

Based on the first value of the flag bit, the working mode of the communication module is determined as the first mode, and the working mode includes a high-speed serial computer expansion bus PCIe master mode and a PCIe slave mode, and the flag bit is the communication module. The flag bit of the module's memory;

In the case where the first mode is different from the second mode, changing the value of the flag bit from the first value to a second value;

The working mode of the communication module is determined as the second mode based on the second value.
The method according to claim 1, further comprising:

The second pattern input by a user is received.
The method according to claim 1, wherein the second mode is a mode stored in the electronic device.
The method according to claim 1, wherein after the value of the flag bit is changed from the first value to the second value, the method further comprises:

storing said second value;

The electronic device is restarted.
The method according to any one of claims 1-4, wherein when the first mode is different from the second mode, changing the value of the flag bit from the first value to second value, including:

In the case where the first mode is different from the second mode, an AT command is generated;

According to the AT instruction, the value of the flag bit is changed from the first value to a second value.
The method according to any one of claims 1-5, wherein when the first mode is different from the second mode, changing the value of the flag bit from the first value to second value, including:

receiving a switching instruction input by the user, where the switching instruction is an instruction from the user to switch the current working mode when the first mode is different from the second mode;

In response to the switching instruction, change the value of the flag bit from the first value to a second value.
The method according to any one of claims 1-6, wherein the first mode is a PCIe slave mode, the second mode is a PCIe master mode, and the flag bit is the communication module's The register value of the memory or the level value of the user-defined pin.
An electronic device, characterized in that it includes: one or more processors and one or more memories, the one or more memories are used to store computer program codes, the computer program codes include computer instructions, the electronic device is set There is a communication module for providing a network for the electronic device, when the one or more processors execute the computer instructions, such that the electronic device performs:

The operating mode of the communication module is determined as the first mode based on the first value of the flag bit, the operating mode includes a PCIe master mode and a PCIe slave mode, and the flag bit is a flag bit of a memory of the communication module ;

In the case where the first mode is different from the second mode, changing the value of the flag bit from the first value to a second value;

The working mode of the communication module is determined as the second mode based on the second value.
A computer-readable storage medium, characterized in that a computer program or computer instruction is stored in the computer-readable storage medium, and when the computer program or computer instruction is executed, any one of claims 1-7 is realized the method described.
A computer program product, characterized in that, when the computer program product is run on a computer, the computer is made to execute the method according to any one of claims 1-7.