Interface circuit compatible with communication equipment and electronic equipment
By designing an interface circuit compatible with communication devices and using identification pins and the main control module to identify the type of external device, the problem of traditional interface design being incompatible with M.2 interface modules was solved, achieving the effects of saving component costs and reducing hardware board size.
Patent Information
- Application Number
- CN202423239541.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional interface designs are incompatible with M.2 interface modules, leading to increased motherboard design costs and space requirements.
Design an interface circuit compatible with communication devices, including identification pins and a main control module. The identification pins identify the type of external device, switch control signals and working logic, and use a set of communication buses to transmit data signals, saving component costs and reducing hardware board size.
It achieves compatibility with a variety of external devices, saves component costs, and reduces the size of hardware boards.
Smart Images
Figure CN223692753U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of connectors, and particularly relates to an interface circuit compatible with a communication device and an electronic device. BACKGROUND
[0002] At present, as a common and general connector standard, PCIe is widely used in the Internet of Things field and has become a common standard for 3G / 4G communication modules. However, communication modules adopting another standard interface M.2 (KEY B) are gradually increasing, especially in the 5G era, more such interface modules appear, which leads to the fact that the original product design hardware cannot be compatible. If the communication module of M.2 is used, an M.2 slot needs to be additionally added on the mainboard and the additional space of the mainboard is occupied, thereby increasing the design cost of the mainboard. CONTENT OF THE UTILITY MODEL
[0003] The application aims to provide an interface circuit compatible with a communication device and an electronic device, and aims to solve the problem of multiple interfaces of traditional products occupying much space.
[0004] The first aspect of the application provides an interface circuit compatible with a communication device, comprising: an interface module, configured to be connected with an external device, the external device comprising a communication device, the interface module comprising an identification pin, the identification pin being configured to receive a detection signal output by the communication device; a master control module connected with the interface module, the master control module being configured to perform data transmission with the external device through the interface module according to the detection signal.
[0005] In one embodiment, the application further comprises a power supply module, the power supply module being connected with the interface module, and the power supply module being configured to supply power to the external device through the interface module.
[0006] In one embodiment, the interface module comprises a first power supply pin and a second power supply pin, the first power supply pin and the second power supply pin are both connected with the power supply module, the first power supply pin is configured to supply power to the communication device, and the second power supply pin is configured to supply power to the external device other than the communication device.
[0007] In one embodiment, the communication device comprises an adapter plate and a wireless communication unit arranged on the adapter plate; the interface of the adapter plate comprises a third power supply pin and a feedback pin, the third power supply pin is connected with the wireless communication unit and the feedback pin respectively, the third power supply pin is configured to obtain power from the interface module, and the feedback pin is configured to output a detection signal to the identification pin.
[0008] In one embodiment, the interface module further comprises a data pin, the data pin being connected with the master control module through a communication bus.
[0009] In one embodiment, the communication bus comprises a PCIe bus.
[0010] In one embodiment, the interface module further comprises a first control pin and a second control pin, both of which are connected to the master module, the first control pin being used to transmit a control signal to the communication device, and the second control pin being used to transmit a control signal to the external device other than the communication device.
[0011] In one embodiment, the external device comprises a storage device.
[0012] In one embodiment, the interface module comprises an M.2 interface.
[0013] A second aspect of the embodiments of the present application provides an electronic device comprising the interface circuit as described above.
[0014] Compared with the prior art, the embodiments of the present application have the beneficial effects that the master module can identify the communication device through the identification pin, thereby realizing the compatibility of the interface module to various external devices including the communication device.
[0015] In the case of providing the identification pin, the master module can at least identify whether the external device connected to the interface module is a communication device through the identification pin, thereby switching the corresponding control signal or working logic, and only one set of communication bus can be used to transmit the data signal to the interface module, thereby saving the component cost and reducing the size of the hardware board. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A principle diagram of the interface circuit compatible with the communication device provided by an embodiment of the present application;
[0017] Figure 2 A principle diagram of the communication device provided by an embodiment of the present application. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0021] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0022] Figure 1 A principle schematic diagram of an interface circuit of a compatible communication device provided by an embodiment of the present application is shown, only parts related to the present embodiment are shown for the convenience of description, and the details are as follows:
[0023] An interface circuit 10 of a compatible communication device includes an interface module 100 and a master control module 200.
[0024] The interface module 100 is used to interface with an external device 20, the external device 20 includes a communication device, the interface module 100 includes an identification pin, the identification pin is used to receive a detection signal output by the communication device; the master control module 200 is connected with the interface module 100, and the master control module 200 is used to transmit data with the external device 20 through the interface module 100 according to the detection signal.
[0025] The master control module 200 can identify the communication device through the identification pin, so as to realize the compatibility of the interface module 100 to multiple external devices 20.
[0026] It can be understood that in the case of providing the identification pin, the master control module 200 can at least identify whether the external device 20 connected with the interface module 100 is a communication device through the identification pin, so as to switch the corresponding control signal or working logic, and only one set of communication bus can be used to transmit data signals with the interface module, saving the cost of components while reducing the size of the hardware board.
[0027] In an embodiment, as shown in Figure 1 The interface circuit 10 further includes a power supply module 300, the power supply module 300 is connected with the interface module 100, and the power supply module 300 is used to supply power to the external device 20 through the interface module 100.
[0028] In some cases, the external device 20 itself does not have a power supply, and therefore, by connecting the power module 300 with the interface module 100, the power module 300 can supply power to the external device 20 through the interface module 100, so as to ensure that the external device 20 can work normally.
[0029] In an embodiment, the interface module 100 includes a first power pin and a second power pin, both of which are connected with the power module 300, the first power pin is used to supply power to the communication device, and the second power pin is used to supply power to the external device 20 other than the communication device.
[0030] It can be understood that by providing two power pins, the interface circuit 10 can output two voltages with different voltages.
[0031] The output voltage of the first power pin and the output voltage of the second power pin can be the same or different, which can be set according to actual needs.
[0032] In some embodiments, the voltage output by the first power pin is 3.8V, and the voltage output by the second power pin is 3.3V.
[0033] In an embodiment, the communication device 30 includes an adapter board 31 and a wireless communication unit 32 arranged on the adapter board 31; the interface 33 of the adapter board 31 includes a third power pin 34 and a feedback pin 35, the third power pin 34 is connected with the wireless communication unit 32 and the feedback pin 35 respectively, the third power pin 34 is used to obtain power from the interface module 100, and the feedback pin 35 is used to output a detection signal to the identification pin. The interface 33 of the adapter board 31 can specifically adopt a gold finger to be connected with an M.2 interface.
[0034] Specifically, the third power pin 34 can obtain power from the first power pin.
[0035] It can be understood that when the adapter board 31 is plugged into the interface module 100, the third power pin 34 can obtain power from the interface module 100 and provide it to the wireless communication unit 32 and the feedback pin 35. The wireless communication unit 32 can work based on the power provided by the third power pin 34, and the feedback pin 35 can generate a detection signal based on the power provided by the third power pin 34. The detection signal can specifically make the identification pin in a high level state.
[0036] It can be understood that the identification pin can be kept in a low level state when there is no external device 20 plugged into the interface module 100 or there is an external device 20 other than the communication device 30 plugged into the interface module 100.
[0037] The host module 200 can determine whether the communication device 30 is inserted into the interface module 100 according to the level state of the identification pin. When the host module 200 determines that the communication device 30 is inserted into the interface module 100 according to the level state of the identification pin, the host module 200 can adjust the working mode of the host module 200, for example, adjust the format of the transmitted data signal, and adjust the control signal sent to the external device 20 through the interface module 100.
[0038] The wireless communication unit 32 can include a mobile communication adapter card disposed on the adapter board 31 and a radio frequency antenna connected to the mobile communication adapter card. The host module 200 can control the wireless communication unit 32 to transmit or receive a wireless signal.
[0039] In some embodiments, the wireless communication unit 32 includes a stamp hole interface for fixing the mobile communication adapter card.
[0040] In an embodiment, the interface module 100 further includes a data pin connected to the host module 200 through the communication bus.
[0041] It should be noted that the data pin includes a plurality of pins, and the number of pins of the data pin meets the transmission requirements of the corresponding data signal.
[0042] In an embodiment, the communication bus includes a PCIe (Peripheral Component Interconnect Express) bus.
[0043] The PCIe bus includes, but is not limited to, PCIe x1, PCIe x2, PCIe x4, and the like.
[0044] In an embodiment, the interface module 100 further includes a first control pin and a second control pin, both of which are connected to the host module 200. The first control pin is used to transmit a control signal to the communication device 30, and the second control pin is used to transmit a control signal to an external device other than the communication device 30.
[0045] It can be understood that the host module 200 can output different control signals through the first control pin and the second control pin.
[0046] The control signal includes, but is not limited to, a wake-up signal, an enable signal, a reset signal, a module detection signal, a SIM card signal, and the like.
[0047] In some embodiments, the interface module 100 can also include only the first control pin. The host module 200 can transmit a control signal to the external device 20 through the first control pin according to the level state of the identification pin.
[0048] It can be understood that, when the host module 200 determines that the communication device 30 is connected to the interface module 100 according to the level state of the identification pin, the host module 200 can output a control signal corresponding to the communication device 30, and when the host module 200 determines that other external device 20 is connected to the interface module 100 according to the level state of the identification pin, the host module 200 can output another control signal.
[0049] In an embodiment, the external device 20 includes a storage device.
[0050] It can be understood that, in the case where only the communication device 30 and the storage device can be connected to the interface module 100, and the interface module 100 only includes the first control pin, the host module 200 can switch the output control signal according to whether the detection signal is received. For example, when the host module 200 receives the detection signal, the host module 200 can output a control signal corresponding to the communication device 30 through the first control pin, and when the host module 200 does not receive the detection signal, the host module 200 can output a control signal corresponding to the storage device through the first control pin.
[0051] In some embodiments, the storage device can specifically include a solid state drive (SSD).
[0052] In an embodiment, the interface module 100 includes an M.2 interface.
[0053] Specifically, the M.2 interface contains all signal definitions of the SSD Socket (Mechanical Key M) in the PCI Express M.2 protocol, and also contains but not more than 16 NC pins (free pins in the PCI Express M.2 protocol). Part of the NC pins can be used as identification pins, first power pins and first control pins.
[0054] An embodiment of the present application provides an electronic device including the interface circuit 10 compatible with a communication device as described above.
[0055] The electronic device can be a gateway, a computer, a household appliance, or the like, which needs a wireless communication function.
[0056] An interface circuit 10 includes an interface module 100, a host module 200 and a power module 300.
[0057] The interface module 100 is used for interfacing with the external device 20, the external device 20 includes the communication device 30, the interface module 100 includes the identification pin, the identification pin is used for receiving the detection signal output by the communication device 30; the main control module 200 is connected with the interface module 100, and the main control module 200 is used for transmitting data with the external device 20 through the interface module 100 according to the detection signal.
[0058] The main control module 200 can identify the communication device 30 through the identification pin, so that the interface module 100 is compatible with multiple external devices 20.
[0059] It can be understood that, in the case of the identification pin, the main control module 200 can at least identify whether the external device 20 connected with the interface module 100 is the communication device 30 through the identification pin, so as to modify the corresponding control signal or working logic.
[0060] In an embodiment, the interface circuit 10 further includes a power module 300, the power module 300 is connected with the interface module 100, and the power module 300 is used for supplying power to the external device 20 through the interface module 100.
[0061] In some cases, the external device 20 itself does not have a power supply, therefore, by connecting the power module 300 with the interface module 100, the power module 300 can supply power to the external device 20 through the interface module 100, so as to ensure that the external device 20 can work normally.
[0062] In an embodiment, the interface module 100 includes a first power pin and a second power pin, the first power pin and the second power pin are both connected with the power module 300, the first power pin is used for supplying power to the communication device 30, and the second power pin is used for supplying power to the external device 20 other than the communication device 30.
[0063] In an embodiment, the communication device 30 includes an adapter board 31 and a wireless communication unit 32 arranged on the adapter board 31; the interface 33 of the adapter board 31 includes a third power pin 34 and a feedback pin 35, the third power pin 34 is connected with the wireless communication unit 32 and the feedback pin 35 respectively, the third power pin 34 is used for obtaining power from the interface module 100, and the feedback pin 35 is used for outputting the detection signal to the identification pin.
[0064] In an embodiment, the interface module 100 further includes a data pin, the data pin is connected with the main control module 200 through a communication bus.
[0065] It should be noted that the data pin specifically includes a plurality of pins, and the number of pins of the data pin meets the transmission requirement of the corresponding data signal.
[0066] In an embodiment, the communication bus includes a PCIe bus.
[0067] The PCIe bus includes, but is not limited to, PCIe x1, PCIe x2, PCIe x4, and the like.
[0068] In an embodiment, the interface module 100 further includes a first control pin and a second control pin, both of which are connected to the master module 200, the first control pin being used to transmit a control signal to the communication device 30, and the second control pin being used to transmit a control signal to an external device 20 other than the communication device 30.
[0069] In some embodiments, the interface module 100 can also include only the first control pin, and the master module 200 transmits a control signal to the external device 20 through the first control pin according to the level state of the identification pin.
[0070] It can be understood that when the master module 200 determines that the communication device 30 is connected to the interface module 100 according to the level state of the identification pin, the master module 200 can output a control signal corresponding to the communication device 30, and when the master module 200 determines that the other external device 20 is connected to the interface module 100 according to the level state of the identification pin, the master module 200 can output another control signal.
[0071] In an embodiment, the external device 20 includes a storage device.
[0072] In some embodiments, the storage device can be a solid state drive (SSD).
[0073] In an embodiment, the interface module 100 includes an M.2 interface.
[0074] It can be clearly understood by those skilled in the art that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for easy distinction, and do not limit the protection scope of the present application. The specific working process of the units and modules in the system can refer to the corresponding process in the foregoing method embodiments, which will not be described here.
[0075] In the above embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in a certain embodiment can be referred to the relevant description of other embodiments.
[0076] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.
Claims
1. An interface circuit for a compatible communication device, characterized by The interface module is connected with the main control module, and the main control module is used for data transmission with the external device through the interface module according to the detection signal. Further comprising a power module, the power module is connected with the interface module, and the power module is used for power supply to the external device through the interface module. The interface module comprises a first power pin and a second power pin, the first power pin and the second power pin are connected with the power module, the first power pin is used for power supply to the communication device, and the second power pin is used for power supply to the external device other than the communication device.
2. The interface circuit of claim 1, wherein, The communication device comprises a conversion board and a wireless communication unit arranged on the conversion board.
3. The interface circuit of claim 2, wherein, The interface of the conversion board comprises a third power pin and a feedback pin, the third power pin is connected with the wireless communication unit and the feedback pin respectively, the third power pin is used for obtaining electric energy from the interface module, and the feedback pin is used for outputting a detection signal to the identification pin.
4. The interface circuit of claim 3, wherein, The interface module further comprises a data pin connected with the main control module through a communication bus. The communication bus comprises a PCIe bus.
5. An interface circuit as claimed in any one of claims 1 to 4, characterized in that, The interface module further comprises a first control pin and a second control pin, the first control pin and the second control pin are connected with the main control module, the first control pin is used for transmitting a control signal with the communication device, and the second control pin is used for transmitting a control signal with the external device other than the communication device.
6. The interface circuit for a compatible communication device of claim 5, wherein, The external device comprises a storage device.
7. An interface circuit as claimed in any one of claims 1 to 4, characterized in that, The interface module comprises an M.2 interface.
8. An interface circuit as claimed in any one of claims 1 to 4, characterized in that The interface circuit comprises any one of claims 1 to 9.
9. An interface circuit as claimed in any one of claims 1 to 4, characterized in that The interface circuit comprises any one of claims 1 to 9.
10. An electronic device, comprising: