CN211406037U - Ethernet data transparent transmission module - Google Patents

Abstract

The utility model discloses an ethernet data passes module thoroughly, including the ethernet module, its characterized in that: the Ethernet module comprises a power module, an MCU module, a network chip and a hundred-megabyte network port seat; the power supply module is in circuit connection with the MCU module and the network chip; the MCU module is connected with the network chip through an RMII bus; the network chip is connected with the hundred million network interface seat circuit. The utility model discloses a high chip of usability price ratio and the circuit design who simplifies extremely realize fast with wired network server's butt joint, convenience of customers is high-efficient, realize the development fast, and like product volume is littleer on the relative market, and ease of use and stability are stronger.

Description

Ethernet data transparent transmission module

Technical Field

The utility model relates to a network transmission technology field, concretely relates to ethernet data passes module thoroughly.

Background

With the popularization of smart devices and internet of things, it has become a common requirement to network smart devices and communicate with network servers or other devices on the network. Even at the present time when 5G technology has been implemented and is widely spread, the important functions of the wired network still cannot be replaced due to problems of base stations, signal interference, shielding, and the like. The 7-layer model of ethernet determines its complexity, and in order to help users develop network communication more conveniently, some modules with both software and hardware are needed to implement easy development and testing.

The existing Ethernet products generally need to design and program network basis by themselves, the implementation process is complicated, the cost is wasted, the related knowledge is large, and for some users, the implementation of network communication is only important but not key work content. For various reasons, some people need to perform operations such as application development or device debugging of such network communication-based products without having basic knowledge related to network programming and HTML. Actual project periods sometimes do not have such sufficient time, and some means are often needed to more quickly and conveniently realize the operation of network communication and data transmission. Therefore, a module capable of simply using a serial port to transmit network data is needed, so that a user does not need to deeply know the related knowledge of complex network programming, the operation can be completed through simple configuration, the cost is saved, and the connection with a wired network server is rapidly realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an ethernet data passes module thoroughly solves one or more among the above-mentioned prior art problem.

According to the utility model discloses an aspect provides an ethernet data passes module thoroughly, including the ethernet module, its characterized in that: the Ethernet module comprises a power module, an MCU module, a network chip and a hundred-million network port seat;

the power supply module is connected with the MCU module and the network chip circuit, provides input voltage for a user and provides stabilized voltage for the interior of the Ethernet module;

the MCU module is connected with the network chip through an RMII bus to carry out communication and data interaction;

the network chip is connected with the hundred million network interface seat circuit for network communication.

In some embodiments: the MCU module adopts a GD32F307RC chip and a kernel ARM Cortex-M4, and uses an LWIP protocol internally. Therefore, when the module runs under Free RTOS, and simultaneously has various fault-tolerant mechanisms such as hardware watchdog and the like, the module can be ensured to run and work efficiently, continuously and stably.

In some embodiments: and the MCU module is integrated with three peripheral devices including an MAC, a GPIO and a UART. The MAC is used for carrying out data interaction and data transmission with the network chip; the GPIO is used for reading and outputting the voltage applied to the design pin by a user and driving an indicator light to indicate the state of the current module; the UART is a serial port peripheral integrated on the MCU, and a communication protocol is customized by the module and is used for realizing communication with other serial port equipment of a user on electrical connection.

In some embodiments: and an indicator light is arranged on the GPIO. Therefore, the state of the current module can be indicated by driving the indicating lamp through the GPIO.

In some embodiments: the MCU module is provided with a clock, and a passive crystal oscillator is externally connected to the clock. In principle, the network chip PHY needs an independent passive crystal oscillator to provide a clock source, but the module provides the clock through the output clock of the MCU, so that the whole module can provide the clock through the MCU.

In some embodiments: and a user interface is reserved on the MCU module. Therefore, a user can operate the MCU module according to the appointed interface definition, and the MCU module executes corresponding data operation according to the instruction.

In some embodiments: the network chip is a PHY chip of type LAN 8720. Therefore, the PHY chip and the MAC peripheral of the MCU module jointly form hardware for Ethernet transmission.

In some embodiments: the model of the hundred million network port seat is HR911105, the communication application range is 10M/100M, the communication speed can be automatically matched after a program is set on a network chip, and the speed can be automatically adjusted to 10M/100M; link _ LED and SPEED _ LED are integrated on the hundred million network socket, and the on-off and flashing states of the Link _ LED and the SPEED _ LED are controlled by the network chip LAN 8720.

Has the advantages that:

the utility model relates to an ethernet data passes through module is through adopting a programmable MCU module as the core main control unit of ethernet module, and the external hardware that realizes the network communication is peripheral, and main control unit drive PHY chip is worked under the state that accords with the condition. The MCU module is internally integrated with an algorithm of a network protocol, UDP/TCP related operations related to network programming are completed by the module, data interaction with a user is realized through AT instructions and data interaction with the user, the user does not need to intervene, the user can easily use the network programming module without related knowledge of the network programming, and network communication and data transmission functions are realized. The utility model discloses a high chip of usability price ratio and the circuit design who simplifies extremely realize fast with wired network server's butt joint, convenience of customers is high-efficient, realize the development fast, and like product volume is littleer on the relative market, and ease of use and stability are stronger.

Drawings

Fig. 1 is a schematic structural diagram of an ethernet data transparent transmission module according to the present invention;

FIG. 2 is a circuit diagram of a power module;

FIG. 3 is a circuit diagram of a network chip;

FIG. 4 is a circuit diagram of the MCU module connected to the PHY chip;

FIG. 5 is a circuit diagram of a reserved user interface of the MCU module;

fig. 6 is a circuit diagram of an indicator light on the MCU module.

Detailed Description

Interpretation of terms:

MAC: media access Control, which defines how data frames are transmitted over the medium, is primarily responsible for controlling and interfacing with the physical medium of the physical layer.

GPIO: general-purpose input/output (generic-purpose input/output), a PIN of General-purpose input/output (generic-purpose input/output), which can be freely used by a user through program control, and a PIN, which can be a General-purpose input (GPI), General-purpose output (GPO), or General-purpose input/output (GPIO) depending on practical considerations.

UART: a Universal Asynchronous Receiver/Transmitter (UART), commonly referred to as UART, is an Asynchronous Receiver/Transmitter that is part of the computer hardware. It converts data to be transmitted between serial communication and parallel communication. As a chip for converting a parallel input signal into a serial output signal, the UART is usually integrated into a connection of other communication interfaces.

PHY: (Physical Layer), the Physical Layer, the bottom-most Layer of the OSI, generally refers to the chip that interfaces with external signals.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, an ethernet data transparent transmission module includes an ethernet module, and is characterized in that: the Ethernet module comprises a power supply module, an MCU module, a network chip and a hundred-megabyte network port seat.

In some embodiments: as shown in fig. 2, the power module, the MCU module and the network chip are connected to the PCB through copper wires. The power supply module mainly realizes power conversion through a power chip U3, voltage is input through an input interface of +5V, the stable voltage of +3.3V required inside the Ethernet module is realized through a U3 chip, the U3 can output the maximum current of 340mA, the working voltage of other subunits on the module is ensured, and the stable state of the chip on the module during working is further ensured.

In some embodiments: the MCU module is connected with the network chip through the RMII bus to carry out communication and data interaction. The MCU module adopts a GD32F307RC chip and a kernel ARM Cortex-M4, and an LWIP protocol is used inside the MCU module; as shown in fig. 3, the network chip employs a network chip LAN8720, designated by U1, of the type selected to comply with the circuit function of the ethernet module. Therefore, when the module runs under Free RTOS, and simultaneously has various fault-tolerant mechanisms such as hardware watchdog and the like, the module can be ensured to run and work efficiently, continuously and stably.

In some embodiments: and the MCU module is integrated with three peripheral devices including an MAC, a GPIO and a UART.

The MAC is used for carrying out data interaction and data transmission with the network chip; the GPIO is used for reading and outputting the voltage applied to the design pin by a user and driving an indicator light to indicate the state of the current module; the UART is a serial port peripheral integrated on the MCU, and a communication protocol is customized by the module and is used for realizing communication with other serial port equipment of a user on electrical connection.

In some embodiments: as shown in fig. 4, the MCU module is connected to the corresponding GPIO network interface of the PHY chip through the RMII interface.

In some embodiments: the MCU module is provided with a built-in clock circuit, and an 8Mhz passive crystal oscillator is externally connected to the clock. Therefore, the MCU module is connected with the network chip, so that the clock can provide working clocks of the whole module and the network chip, the PHY of the network chip needs an independent passive crystal oscillator to provide a clock source in principle, but the module provides the clock through the output clock of the MCU, and the whole module can provide the clock through the MCU.

In some embodiments: a user interface is reserved on the MCU module, as shown in fig. 5, wherein: VCC is power supply input, and the voltage range is 3.3V-5V for self-adaptation; GND is a system power ground; RX is connected to the outside of the module's UART and represents the serial reception of the module; TX is connected to the outside of the UART of the module and represents serial transmission of the module; the TS indicates the receiving and sending state of the serial port data at the network end and is connected with the GPIO of the module; DF can restore the factory setting and is connected with GPIO of the module. Therefore, a user can operate the MCU module according to the appointed interface definition, and the MCU module executes corresponding data operation according to the instruction.

In some embodiments: an indicator light is arranged on the GPIO, and as shown in figure 6, the LED1 is connected to the GPIO of the MCU module. Therefore, the current state can be indicated by the current operation state indication of the GPIO driving indicator lamp, namely whether the indicator lamp flickers or not and the flickering speed.

In some embodiments: the network chip is connected with the hundred million network port seat circuit for network communication; the network chip is a PHY chip of type LAN 8720. Therefore, the PHY chip and the MAC peripheral of the MCU module jointly form hardware for Ethernet transmission.

In some embodiments: the hundred million network port seat is HR911105 and is connected with a network chip, a network cable is connected to the module through the hundred million network port seat, and the other end of the network cable is connected to a router or other host with a network port network; the communication application range is 10M/100M, the communication speed can be automatically matched after a program is set on a network chip, and the speed can be automatically adjusted between 10M/100M.

In some embodiments: the hundred million network socket is integrated with a LINK _ LED lamp and a SPEED _ LED lamp, and the LINK _ LED lamp and the SPEED _ LED lamp are controlled by the network chip LAN8720 to be in on-off and flashing states.

The LINK _ LED lamp indicates whether the network communication is successful or not, the lamp is on to indicate that the network connection is successful, and otherwise, the connection is failed; the SPEED _ LED lamp indicates the network SPEED, when the network connection is successful, the lamp is normally on and indicates the network SPEED of 10M, and the SPEED _ LED lamp is in a flashing state when the network SPEED reaches 100M.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, similar modifications and improvements can be made without departing from the inventive concept of the present invention, and these are also considered to be within the protection of the present invention.

Claims (8)

1. The utility model provides an ethernet data pass through module, includes ethernet module, its characterized in that: the Ethernet module comprises a power module, an MCU module, a network chip and a hundred-megabyte network port seat;

the power supply module is in circuit connection with the MCU module and the network chip;

the MCU module is connected with the network chip through an RMII bus;

the network chip is connected with the hundred million network interface seat circuit.

2. The ethernet data pass-through module of claim 1, wherein: the MCU module adopts a GD32F307RC chip and a kernel ARM Cortex-M4, and an LWIP protocol is used inside.

3. The ethernet data pass-through module of claim 1, wherein: and the MCU module is integrated with three peripheral devices including an MAC, a GPIO and a UART.

4. An ethernet data pass-through module according to claim 3, characterized in that: and an indicator light is arranged on the GPIO.

5. The ethernet data pass-through module of claim 1, wherein: the MCU module is provided with a clock, and a passive crystal oscillator is externally connected to the clock.

6. The ethernet data pass-through module of claim 1, wherein: and a user interface is reserved on the MCU module.

7. The ethernet data pass-through module of claim 1, wherein: the network chip is a PHY chip of type LAN 8720.

8. The ethernet data pass-through module of claim 1, wherein: the model of the hundred million net mouth seat is HR911105, and a LINK _ LED and a SPEED _ LED are integrated on the hundred million net mouth seat.

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