CN215814162U

CN215814162U - Embedded system board

Info

Publication number: CN215814162U
Application number: CN202121979205.0U
Authority: CN
Inventors: 邬志锋; 朱敏; 许焕明; 胡华玉; 覃园芳; 黄增华
Original assignee: Guangdong Communications Polytechnic
Current assignee: Guangdong Communications Polytechnic
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-11
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses an embedded system board, which comprises a development board body, wherein a control module and a JLINK-OB downloader are arranged on the development board body, the downloader comprises a USB interface and a singlechip, the USB interface is used for being accessed to an upper computer, the USB interface is connected with the singlechip, and the singlechip is connected with the control module. According to the utility model, the JLINK-OB downloader can be used for realizing embedded development, program downloading and software debugging of the embedded system board, the problems of complex downloading process and high difficulty in online simulation and debugging of the embedded system board are solved, and the research and development efficiency and the learning efficiency are improved. The utility model can be widely applied to the technical field of embedded systems.

Description

Embedded system board

Technical Field

The utility model relates to the technical field of embedded systems, in particular to an embedded system board.

Background

With the development of embedded technology, embedded systems have been applied to the work of various scenes. To realize a specific function, a program needs to be downloaded to the embedded system board, and the program is used to drive the peripheral device to realize the corresponding function.

The downloading process of the embedded system board in the related technology is complex, the defects of online simulation and high debugging difficulty exist, the difficulty of beginners is high, and the embedded system board is difficult to master quickly.

SUMMERY OF THE UTILITY MODEL

To solve the above technical problems, the present invention aims to: an embedded system board is provided.

The technical scheme adopted by the utility model is as follows:

the utility model provides an embedded system board, includes the development board body, be equipped with control module and JLINK-OB downloader on the development board body, the downloader includes USB interface and singlechip, the USB interface is used for inserting the external world the USB interface with the singlechip is connected, the singlechip with control module connects.

Further, still be equipped with keyboard module on the development board body, keyboard module with control module is connected.

Further, still include the buzzer module on the development board body, the buzzer module with control module is connected.

Further, still include the charactron module on the development board body, the charactron module with control module is connected.

Further, still include temperature detection module on the development board body, temperature detection module with control module is connected.

Further, still include power module on the development board body, power module with control module is connected.

Further, still be equipped with a plurality of screw hole on the development board body, the screw hole embeds there is set screw.

Further, the USB interface comprises one of a USB-B interface and a Micro USB interface.

The utility model has the beneficial effects that: the JLINK-OB downloader can realize embedded development, program downloading and software debugging of the embedded system board, solves the problems of complex downloading process and high difficulty in on-line simulation and debugging of the embedded system board, and improves the research and development efficiency and the learning efficiency.

Drawings

FIG. 1 is a schematic diagram of an embedded system board according to the present invention;

FIG. 2 is a schematic circuit diagram of a control module of an embedded system board according to the present invention;

FIG. 3 is a schematic circuit diagram of a keyboard module of an embedded system board according to the present invention;

FIG. 4 is a schematic circuit diagram of a buzzer panel module of an embedded system board of the present invention;

FIG. 5 is a schematic circuit diagram of a nixie tube module of an embedded system board according to the present invention;

fig. 6 is a schematic circuit diagram of a power module of an embedded system board according to the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.

In the utility model, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

The utility model will be further explained and explained with reference to the drawings and the embodiments in the description.

In order to at least partially solve one of the above problems, the present invention provides an embedded system board, and referring to fig. 1, the embedded system board includes a development board body, the development board body is provided with a control module and a join-OB downloader, the join-OB downloader includes a USB interface and a single chip, the USB interface is used for accessing an upper computer, the USB interface is connected to the single chip, and the single chip is connected to the control module.

In particular, the JLINK-OB downloader is used for realizing the functions of program downloading, hardware emulation and serial communication. The USB interface is connected to the single chip microcomputer, the USB interface is connected to the upper computer through a USB line, and the USB interface has a communication function, so that the purpose of communication between the JLINK-OB downloader and the upper computer is achieved. The JLINK-OB downloader can comprise a single chip microcomputer of which the model is STM32F72C8T6, the STM32F72C8T6 single chip microcomputer does not need a clock circuit, a peripheral circuit is simple, and the JLINK-OB downloader has the characteristics of stable and reliable performance, and the FLASH space of the JLINK-OB downloader can be matched with JLINK-OB firmware.

The control module is used as a control center of the embedded system board and is used for driving peripheral equipment to work. The JLINK-OB downloader is also connected with the control module and is communicated with the control module in an SWD mode to finish debugging and downloading tasks. Referring to fig. 2, the control module may include a single chip microcomputer of STM32F103R series, and the control module further includes a RESET unit including a RESET key RESET, a seventeenth resistor R17, and a fifth capacitor C5.

In conclusion, the JLINK-OB downloader can realize the embedded development, program downloading and software debugging of the embedded system board, solve the problems of complex downloading process of the embedded system board and high difficulty in online simulation and debugging, and improve the research and development efficiency and the learning efficiency.

Further as an optional implementation mode, a keyboard module is further arranged on the development board body, and the keyboard module is connected with the control module.

Specifically, the embedded system board is further provided with a keyboard module, a key signal is input through the keyboard module, a trigger condition can be set through the key signal, the control module receives the key signal, and the peripheral equipment is controlled to work according to the key signal. In one specific embodiment, referring to fig. 3, the keyboard module may comprise a 4 x 4 matrix keyboard circuit.

Further as an optional implementation manner, the development board body further comprises a buzzer module, and the buzzer module is connected with the control module.

Specifically, referring to fig. 4, the embedded system board further includes a buzzer module as a peripheral device, and the control module provides a high-level signal to the first transistor Q1, so that the first transistor Q1 is turned on, and the buzzer B1 sounds. The buzzer module can be used for giving out alarm sound or prompt sound.

Further as an optional implementation mode, the development board body further comprises a nixie tube module, and the nixie tube module is connected with the control module.

In particular, the embedded system board also comprises a peripheral device of the nixie tube module. In one particular embodiment, referring to fig. 5, the nixie tube module includes a 4 digit nixie tube model LN3461 BX. The control module can control the 4-bit nixie tube to realize functions of timing, counting and the like.

Further as an optional implementation manner, the development board body further comprises a temperature detection module, and the temperature detection module is connected with the control module.

Specifically, the embedded system board of the application further comprises a temperature detection module, the temperature detection module is used for collecting temperature information, and the collected temperature information is sent to the control module. In one embodiment, the temperature detection module may include a temperature sensor model DS18B 2.

Further as an optional implementation manner, the development board body further comprises a power supply module, and the power supply module is connected with the control module.

Specifically, the power module is configured to convert a 5V dc voltage into a 3.3V dc voltage, and supply power to the control module using the 3.3V dc voltage, and the 5V dc voltage is configured to supply power to other circuit modules. In a specific embodiment, referring to fig. 6, the power module includes a voltage regulator of model AMS1117-3.3, the voltage regulator of AMS1117-3.3 is used to convert the input 5V dc voltage into 3.3V dc voltage, and the 3.3V dc voltage is used to power the single chip in the control module. In addition, the power module also comprises a power indicator light which is used for indicating the working condition of the power module, when the power module can not output 3.3V direct current voltage, the power module is in failure, and at the moment, the power indicator light is turned off.

Further as an optional implementation, the USB interface includes one of a USB-B interface and a Micro USB interface.

Specifically, the embodiment of the application provides an alternative scheme of the USB interface, when the USB interface is the USB-B interface, the USB connection line should be the printer connection line, and the printer connection line has the characteristics of firmness, stability and durability; when the USB interface is the Micro USB interface, the USB connecting wire can select the charging wire of android mobile phone, and the charging wire low price of android mobile phone acquires easily.

Further as an optional implementation mode, a plurality of threaded holes are further formed in the development board body, and fixing screws are arranged in the threaded holes.

Specifically, this application still opens threaded hole on the development board body, and the optional four corners at this body of development sets up the threaded hole to utilize the regulation screw with this development board body fixed to proof box or test bench, use through the cooperation of threaded hole and set screw, can dismantle and install the development board body convenient and fast ground.

On the basis of the above content, the present application can also expand peripheral devices, for example, add a plurality of functional modules such as an OLED module, an RFID module, and a 2.4G wireless transmission module.

Finally, it should be noted that the development board body of the present application adopts a double-layer board design, the width of the signal line in the development board body is 10 mils, and the line width of the power line is 40 mils. And the tear drop and the copper spreading treatment of a power supply ground are added on the development board body, so that the stability of the signal of the development embedded system board is ensured. Elements such as capacitors, resistors, light emitting diodes and the like on the development board body are packaged by 0805, so that the volume and the area of the development board body are reduced.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides an embedded system board, its characterized in that, includes the development board body, be equipped with control module and JLINK-OB downloader on the development board body, JLINK-OB downloader includes USB interface and singlechip, the USB interface is used for inserting the host computer, the USB interface with the singlechip is connected, the singlechip with control module connects.

2. The embedded system board according to claim 1, wherein a keyboard module is further disposed on the development board body, and the keyboard module is connected to the control module.

3. The embedded system board of claim 1, further comprising a buzzer module on the development board body, wherein the buzzer module is connected to the control module.

4. The embedded system board according to claim 1, wherein the development board body further comprises a nixie tube module, and the nixie tube module is connected to the control module.

5. The embedded system board according to claim 1, further comprising a temperature detection module on the development board body, wherein the temperature detection module is connected to the control module.

6. The embedded system board according to claim 1, further comprising a power module on the development board body, wherein the power module is connected to the control module.

7. The system-in-board unit according to claim 1, wherein the development board body further has a plurality of threaded holes, and the threaded holes have fixing screws.

8. The embedded system board according to any one of claims 1-7, wherein the USB interface comprises one of a USB-B interface and a Micro USB interface.