CN210865303U - STM-F4-based portable practical training system - Google Patents

Abstract

The utility model provides a portable training system based on STM-F4, comprising: a single-chip microcomputer, an input unit connected with the single-chip computer, an output unit, a logic control unit, a peripheral unit and a communication unit; wherein, the input unit includes a keyboard interface And infrared remote control interface; Described output unit includes LCD touch screen, digital tube, LED, buzzer; Described logic control unit includes ADC, DAC interface, single bus control interface, CAN protocol control interface and ST-LINK debugging interface; The peripheral unit includes an SPI interface and an I ² C interface; the communication unit includes an ATK module interface, a Bluetooth interface, a USB-to-serial port and an Ethernet interface. The system has powerful functions, high practicability, low cost, easy maintenance, and can be closely integrated with its own theoretical teaching and promote each other.

Description

A Portable Training System Based on STM-F4

technical field

The utility model mainly relates to the technical field related to the training and teaching of single-chip microcomputers, in particular to a portable training system based on STM-F4.

Background technique

"The Principle and Application of Single Chip Microcomputer" is an important professional basic course for electronic information majors. This course has strong logic and application. The corresponding experimental teaching plays a vital role in cultivating students' practical ability, innovation ability and thinking ability, which puts forward higher requirements for experimental teaching.

At present, although the teaching experiment system produced on the market has many functions, there are unreasonable structures in the design process, resulting in poor equipment stability and low efficiency; secondly, problems such as high equipment prices and difficult maintenance are difficult to solve; In the process, additional downloader and power supply are required, and plug-in is the main method during the experiment. It is difficult to meet the needs of own teaching in terms of use and function, and there are even situations that are inconsistent with the teaching content. In addition, the teaching equipment is bulky and inconvenient to carry, which makes it difficult for students to conduct experiments and explorations when they have experimental passion and creative inspiration.

Utility model content

In order to solve the deficiencies of the current technology, the utility model provides a portable training system based on STM-F4 based on the practical application in combination with the existing technology. The system has powerful functions, strong practicability, low cost and easy maintenance. , and can be closely integrated with their own theoretical teaching and promote each other.

The technical scheme of the present utility model is as follows:

A portable training system based on STM-F4, comprising: a single chip microcomputer, an input unit connected with the single chip computer, an output unit, a logic control unit, a peripheral unit and a communication unit;

Wherein, the input unit includes a keyboard interface and an infrared remote control interface;

The output unit includes an LCD touch screen, a digital tube, an LED, and a buzzer;

The logic control unit includes ADC, DAC interface, single bus control interface, CAN protocol control interface and ST-LINK debugging interface;

The peripheral unit includes an SPI interface and an I ² C interface;

The communication unit includes an ATK module interface, a Bluetooth interface, a USB-to-serial interface and an Ethernet interface.

Further, the model of the single-chip microcomputer is STM32F429.

Further, the ATK module interface is a 1×6 row seat.

Further, the LCD touch screen is a TFTLCD touch liquid crystal screen.

The beneficial effects of the present utility model:

This single-chip microcomputer training system integrates serial communication function, program download function and power supply function. It is small in size and easy to carry. It allows students to conduct experiments anytime and anywhere, and can better combine theory and practice, and can promote experimental teaching. Reform can improve teachers' R&D ability and engineering ability; it can break the limitations of traditional experiments, facilitate students to conduct experiments outside the classroom at any time, and stimulate students' innovative thinking. Good results have been achieved in practical applications.

Description of drawings

1 is a schematic diagram of the overall structure of the utility model.

Detailed ways

The utility model will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the limited scope of the present application.

As shown in Figure 1, a portable training system based on STM-F4 includes: a single-chip microcomputer, an input unit connected to the single-chip computer, an output unit, a logic control unit, a peripheral unit and a communication unit; wherein, the input unit includes Keyboard interface and infrared remote control interface; the output unit includes LCD touch screen, digital tube, LED, buzzer; the logic control unit includes ADC, DAC interface, single bus control interface, CAN protocol control interface and ST-LINK debugging interface ; The peripheral unit includes an SPI interface and an I ² C interface; the communication unit includes an ATK module interface, a Bluetooth interface, a USB-to-serial port and an Ethernet interface. Specifically, the model used by the microcontroller is STM32F429.

The system is small in size and easy to carry, and integrates the single-chip download function, serial communication function, and system power supply function on a USB interface.

At the same time, in order to enable students to have a solid grasp of commonly used communication protocols and learn to realize protocol timing through software simulation according to timing diagrams, the utility model adds a variety of communication protocol interfaces on the basis of common peripherals in general systems, such as SPI interface, ST interface and single bus data interface.

The utility model simultaneously provides various forms of communication interfaces, including wired communication (serial communication), wireless communication (Bluetooth communication), USB to serial port, Ethernet interface and infrared remote control module.

The utility model has powerful peripheral functions. For the same peripherals, it has faster analog-to-digital conversion speed and lower ADC/DAC operating voltage. At the same time, it has both digital tube display and TFTLCD touch liquid crystal screen display, which supports various display methods such as pictures and texts, and is suitable for various experimental needs.

Regarding the logic control unit of the present invention, it includes four parts: ADC/DAC interface, single bus control interface (temperature and humidity sensor), CAN protocol control interface and ST-LIINK debugging interface. Rich and diverse functions, and adapt to a variety of experimental requirements. Regarding the serial port download and power supply unit, the system integrates serial port communication, program download and power supply functions on one USB interface, which greatly saves design space and realizes that only one USB cable is required to connect to the computer to complete the above functions. Regarding the communication unit, it consists of three parts: ATK module interface, two Bluetooth module interfaces and Ethernet port. The selection of two Bluetooth interfaces can realize the integration of sending and receiving, which is convenient for extending and expanding experiments. Among them, ATK is a 1*6 row seat, which can be used to connect modules, such as: GPS module, MPU6050 module, WIFI module and RGB color light module, etc., making the module easy and fast to use.

The practical training system of the utility model has achieved good teaching effect in the actual application process. From the current experimental effect, it can better combine theory with practice, promote experimental teaching reform, and improve teachers' research and development. Ability and engineering ability; can break the limitations of traditional experiments, help students to conduct experiments at any time outside the classroom, and also help students to stimulate innovative thinking.

Claims (4)

1. A portable practical training system based on STM-F4 is characterized by comprising: the system comprises a singlechip, an input unit, an output unit, a logic control unit, a peripheral unit and a communication unit, wherein the input unit, the output unit, the logic control unit, the peripheral unit and the communication unit are connected with the singlechip;

the input unit comprises a keyboard interface and an infrared remote control interface;

the output unit comprises an LCD touch screen, a nixie tube, an LED and a buzzer;

the logic control unit comprises an ADC (analog to digital converter), a DAC (digital to analog converter) interface, a single bus control interface, a CAN (controller area network) protocol control interface and an ST-LINK (test-LINK) debugging interface;

the peripheral unit comprises an SPI interface and an I²Interface C;

the communication unit comprises an ATK module interface, a Bluetooth interface, a USB-to-serial port and an Ethernet interface.

2. The portable practical training system based on the STM-F4 as claimed in claim 1, wherein the single chip microcomputer is of the type STM32F 429.

3. An STM-F4-based portable training system according to claim 1, wherein the ATK module interface is a row seat of 1 × 6.

4. The STM-F4-based portable practical training system of claim 1, wherein the LCD touch screen is a tft LCD touch LCD screen.

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