Carrier plate referring to SMARC protocol interface

Abstract

The utility model discloses a carrier plate of a reference SMARC protocol interface, which comprises an MXM3 connector, a voice modulation module, an SD interface expansion module, an HDMI interface expansion module, a network cable interface expansion module, a USB interface expansion module, a screen interface expansion module, a camera expansion module and a serial communication expansion module. The MXM3 connector is respectively connected with the voice modulation module, the SD interface extension module, the HDMI interface extension module, the USB interface extension module, the screen interface extension module, the camera extension module and the serial communication extension module. In the scheme of the utility model, the MXM3 connector is utilized to set the module compatible with the SMARC protocol, so that other interfaces are expanded in the data transmission process, and the expansibility and compatibility of the core board circuit are improved.

Description

Technical Field

[0001] This utility model relates to the field of carrier circuits, and in particular to a carrier board with a reference SMARC protocol interface. Background Technology

[0002] SMARC (Smart Mobility Architecture) is a general-purpose definition of a small computer module, a modular low-power embedded architecture platform based on ARM and x86 technologies. It is designed to meet the application requirements of low power consumption, low cost, and high performance, typically using ARM SoCs or other low-power SoCs and CPUs similar to those found in tablets and smartphones. Currently, the latest version of SMARC is the SMARC 2.1 protocol.

[0003] A support plate is a planar medium used to carry and support electronic components, typically used in integrated circuit (IC) packaging. It not only carries the chip but also facilitates signal transmission between the chip and the circuit board through internal wiring. Currently, support plates do not offer good compatibility with multiple interface protocols, leading to situations where data cannot be transmitted between interfaces. A technology is needed to address this current technical problem. Utility Model Content

[0004] The main purpose of this invention is to propose a carrier board with a reference SMARC protocol interface, which aims to solve the technical problem that the carrier board cannot be well compatible with multiple interface protocols, resulting in the inability of the interfaces of the carrier board to transmit data to each other.

[0005] To achieve the above objectives, the present invention proposes a carrier board with a reference SMARC protocol interface, the carrier board comprising:

[0006] The MXM3 connector includes a voice modulation module, an SD interface expansion module, an HDMI interface expansion module, a network cable interface expansion module, a USB interface expansion module, a screen interface expansion module, a camera expansion module, and a serial communication expansion module. The MXM3 connector has 256 pins defined based on the SMARC protocol.

[0007] The MXM3 connector is connected to the voice modulation module, the SD interface expansion module, the HDMI interface expansion module, the network cable interface expansion module, the USB interface expansion module, the screen interface expansion module, the camera expansion module, and the serial communication expansion module, respectively.

[0008] Optionally, in the first implementation, the MXM3 connector further includes a core board connection interface for connecting to a CPU core board.

[0009] Optionally, in the second implementation, the voice modulation module includes an ES8388 chip and a microphone module, wherein the ES8388 chip is connected to the MXM3 connector and the microphone module, respectively.

[0010] Alternatively, in the third implementation, the VDD pin of the ES8388 chip is connected to the MXM3 connector, and the LIN and RIN pins of the ES8388 chip are connected to the microphone module.

[0011] Optionally, in the fourth implementation, the ASDOUT pin, DSDIN pin, LRCK pin, SCLK pin, and MCLK pin of the ES8388 chip are connected to the MXM3 connector.

[0012] Optionally, in the fifth implementation, the network cable interface expansion module includes a first LAN interface and a second LAN interface, wherein the first LAN interface and the second LAN interface are respectively connected to the MXM3 connector.

[0013] Optionally, in the sixth implementation, the first LAN interface and the second LAN interface include an HR911130C single-port connector.

[0014] Optionally, in the seventh implementation, the serial communication expansion module includes: a UART interface and multiple RS232 interfaces, wherein the UART interface is connected to the MXM3 connector and the multiple RS232 interfaces are connected to the MXM3 connector.

[0015] Optionally, in the eighth implementation, the carrier board of the reference SMARC protocol interface further includes: a power reset button and a power indicator light, wherein the power reset button is connected to the MXM3 connector and the power indicator light is connected to the MXM3 connector.

[0016] Optionally, in the ninth implementation, the screen interface expansion module includes an eDP screen interface and / or a MIPI screen interface, wherein the eDP screen interface and / or the MIPI screen interface are respectively connected to the MXM3 connector.

[0017] In this embodiment of the utility model, the pin definitions in the MXM3 connector are adjusted by referring to the 314-pin definition in the SMRAC protocol. The MXM3 connector connects the voice modulation module and other expansion interfaces simultaneously. By utilizing a series of standardized interfaces defined by the SMARC protocol, compatibility between modules is ensured and the manufacturing cost of the carrier board is reduced. This enables the expansion of other interfaces during data transmission. Referring to the SMARC protocol to define the pins of the carrier board improves the expandability and compatibility of the carrier board interface. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the carrier board for the reference SMARC protocol interface of this utility model.

[0020] Figure 2 This is a schematic diagram of a specific embodiment of the carrier board for the reference SMARC protocol interface of this utility model;

[0021] Figure 3A This is a first schematic diagram showing the pin definitions of the MXM3 connector of this utility model;

[0022] Figure 3B A second schematic diagram defining the pinout of the MXM3 connector of this invention;

[0023] Figure 4 This is a schematic diagram of a specific embodiment of the first LAN interface and the second LAN interface of this utility model;

[0024] Figure 5 This is a schematic diagram of the ES8388 chip of this utility model.

[0025] Explanation of icon numbers:

[0026] 10-MXM3 connector, 20-voice modulation module, 30-SD interface expansion module, 40-HDMI interface expansion module, 50-network cable interface expansion module, 60-USB interface expansion module, 70-screen interface expansion module, 80-camera expansion module, 90-serial communication expansion module, 110-power reset button, 120-power indicator light, 201-ES8388 chip, 202-microphone module, 501-first LAN interface, 502-second LAN interface, 701-eDP / MIPI screen interface, 702-MIPI screen interface, 901-UART interface, 902-RS232 interface.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model proposes a carrier board with a reference SMARC protocol interface. In the embodiments of this utility model, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of a carrier board with a reference SMARC protocol interface according to the present invention. The carrier board with the reference SMARC protocol interface includes:

[0032] The system includes an MXM3 connector 10, a voice modulation module 20, an SD interface expansion module 30, an HDMI interface expansion module 40, a network cable interface expansion module 50, a USB interface expansion module 60, a screen interface expansion module 70, a camera expansion module 80, and a serial communication expansion module 90. The MXM3 connector 10 is compatible with the SMARC protocol. SMARC (Standard for Mobile Automotive Robotic Computers) is a modular computer standard designed for embedded computing needs in the automotive and mobile robotics fields. The MXM3 connector's 256 pin definitions are configured according to the 314-pin definition of the SMARC protocol. (Pin definitions can be found in [reference needed]). Figure 3A , Figure 3B , Figure 3A This is the first schematic diagram showing the pin definitions of the MXM3 connector of this utility model. Figure 3B This is a second schematic diagram illustrating the pin definitions of the MXM3 connector of this invention. The MXM3 connector 10 further includes a core board connection interface for connecting to a CPU core board. The core board connection interface connects to the PICE pins, providing a connection path between the CPU core board and the MXM3 connector.

[0033] This invention is more specifically compatible with the SMARC 2.1 protocol. SMARC modules are typically equipped with high-performance processors, such as ARM, x86, or RISC-V architecture CPUs, to meet complex computing needs. SMARC modules support the addition of additional functions, such as additional storage, network interfaces, or sensor interfaces, through various expansion interfaces (such as PCIe).

[0034] The voice modulation module 20, SD interface expansion module 30, HDMI interface expansion module 40, network cable interface expansion module 50, USB interface expansion module 60, screen interface expansion module 70, camera expansion module 80, and serial communication expansion module 90 are connected using the MXM3 connector 10 that supports the SMARC protocol.

[0035] The working principle of this utility model is as follows: By utilizing the universality of the SMARC protocol, after connecting the MXM3 connector 10 to the voice modulation module 20, the MXM3 connector 10 is sequentially connected to multiple interfaces such as the SD interface expansion module 30, HDMI interface expansion module 40, network cable interface expansion module 50, USB interface expansion module 60, screen interface expansion module 70, camera expansion module 80, and serial communication expansion module 90. The SMARC protocol is used to convert the data of the voice modulation module to other interfaces, thereby achieving high compatibility of expanding multiple interfaces under the carrier board circuit.

[0036] Specifically, in the first specific embodiment, please refer to... Figure 2 , Figure 2 This is a schematic diagram of a specific embodiment of the carrier board with the SMARC protocol interface of this utility model. The voice modulation module 20 includes an ES8388 chip 201 and a microphone module 202, with the ES8388 chip 201 connected to the MXM3 connector 10 and the microphone module 202 respectively. The network cable interface expansion module 50 includes a first LAN interface 501 and a second LAN interface 502, which are respectively connected to the MXM3 connector 10. The serial communication expansion module 90 includes two UART interfaces 901 and three RS232 interfaces 902, with the two UART interfaces 901 and the three RS232 interfaces 902 respectively connected to the MXM3 connector 10. The carrier board with the SMARC protocol interface also includes a power reset button 110 and a power indicator light 120, with the power reset button 110 and the power indicator light 120 connected to the MXM3 connector 10. The carrier board, referencing the SMARC protocol interface, supports 4G / 5G modules with an M.2 key B interface using the USB 3.0 protocol, solid-state drives with an M.2 key M interface using the PCIe protocol, and WIFI & BT modules with an M.2 key E interface using both PCIe and USB 2.0 protocols. The number of GPIO ports is expanded through the I / O expander and LED driver of model SX1509BIULTRT. This carrier board also supports CAN communication via the CAN0 signal.

[0037] The screen interface expansion module 70 includes: an eDP / MIPI screen interface 701, which can select either an eDP screen interface or a MIPI screen interface as the connection interface; and a MIPI screen interface 702, which serves as the interface for connecting a MIPI screen. The eDP / MIPI screen interface 701 and the MIPI screen interface 702 are respectively connected to the MXM3 connector 10, achieving the technical effect that the eDP screen interface and / or the MIPI screen interface are respectively connected to the MXM3 connector 10.

[0038] Specifically, in the second specific embodiment, please refer to... Figure 4 , Figure 4 Figure 3 shows a schematic diagram of a specific embodiment of the first LAN interface and the second LAN interface. The first LAN interface and the second LAN interface include: an HR911130C single-port connector. The circuit schematic diagram of the HR911130C single-port connector is shown in Figure 3.

[0039] Specifically, in the third embodiment, please refer to... Figure 5 , Figure 5 This is a schematic diagram of the ES8388 chip of this utility model. The DVDD, PVDD, AVDD, and HPVDD pins of the ES8388 chip are connected to the MXM3 connector 10, and the VDD pin mainly receives power from the MXM3 connector 10. The LIN1, LIN2, RIN1, and RIN2 pins of the ES8388 chip are connected to the microphone module 202. The ASDOUT, DSDIN, LRCK, SCLK, and MCLK pins of the ES8388 chip are connected to the MXM3 connector. The ASDOUT, DSDIN, LRCK, SCLK, and MCLK pins transmit clock division and control data related to the serial data input configured on the I2S channel.

[0040] The beneficial effects of this utility model are as follows: This utility model proposes a carrier board solution with reference to the SMARC protocol interface. By adjusting the 256 pin definitions in the MXM3 connector with reference to the 314-pin definition in the SMARC protocol, the MXM3 connector can simultaneously connect the voice modulation module and other expansion interfaces. By utilizing a series of standardized interfaces defined by the SMARC protocol, the compatibility between modules is ensured and the manufacturing cost of the carrier board is reduced. It also enables the expansion of other interfaces during data transmission. The pin definitions of the carrier board with reference to the SMARC protocol improve the expandability and compatibility of the carrier board interface.

[0041] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A carrier board with a reference SMARC protocol interface, characterized in that, The carrier board for the reference SMARC protocol interface includes: The MXM3 connector includes a voice modulation module, an SD interface expansion module, an HDMI interface expansion module, a network cable interface expansion module, a USB interface expansion module, a screen interface expansion module, a camera expansion module, and a serial communication expansion module. The MXM3 connector has 256 pins defined based on the SMARC protocol. The MXM3 connector is connected to the voice modulation module, the SD interface expansion module, the HDMI interface expansion module, the network cable interface expansion module, the USB interface expansion module, the screen interface expansion module, the camera expansion module, and the serial communication expansion module, respectively.

2. The carrier board with the reference SMARC protocol interface according to claim 1, characterized in that, The MXM3 connector also includes a core board connection interface, which is used to connect to the CPU core board.

3. The carrier board with the reference SMARC protocol interface according to claim 1, characterized in that, The voice modulation module includes an ES8388 chip and a microphone module, wherein the ES8388 chip is connected to the MXM3 connector and the microphone module, respectively.

4. The carrier board with the reference SMARC protocol interface according to claim 3, characterized in that, The VDD pin of the ES8388 chip is connected to the MXM3 connector, and the LIN and RIN pins of the ES8388 chip are connected to the microphone module.

5. The carrier board with the reference SMARC protocol interface according to claim 4, characterized in that, The ASDOUT, DSDIN, LRCK, SCLK, and MCLK pins of the ES8388 chip are connected to the MXM3 connector.

6. The carrier board with the reference SMARC protocol interface according to claim 1, characterized in that, The network cable interface expansion module includes a first LAN interface and a second LAN interface, which are respectively connected to the MXM3 connector.

7. The carrier board with the reference SMARC protocol interface according to claim 6, characterized in that, The first LAN interface and the second LAN interface include: HR911130C single-port connector.

8. The carrier board with the reference SMARC protocol interface according to claim 1, characterized in that, The serial communication expansion module includes a UART interface and multiple RS232 interfaces. The UART interface is connected to the MXM3 connector, and the multiple RS232 interfaces are connected to the MXM3 connector.

9. The carrier board with the reference SMARC protocol interface according to claim 1, characterized in that, The carrier board for the reference SMARC protocol interface also includes a power reset button and a power indicator light. The power reset button is connected to the MXM3 connector, and the power indicator light is connected to the MXM3 connector.

10. The carrier board with the reference SMARC protocol interface according to claim 1, characterized in that, The screen interface expansion module includes an eDP screen interface and / or a MIPI screen interface, which are respectively connected to the MXM3 connector.

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