CN203165315U

CN203165315U - Single chip microcomputer learning experimental device

Info

Publication number: CN203165315U
Application number: CN 201320174152
Authority: CN
Inventors: 杨守良; 杨保亮
Original assignee: 杨守良
Current assignee: Chongqing University of Arts and Sciences
Priority date: 2013-04-09
Filing date: 2013-04-09
Publication date: 2013-08-28
Anticipated expiration: 2023-04-09

Abstract

The utility model relates to a single chip microcomputer learning experimental device and particularly relates to a single chip microcomputer experimental circuit board with online programming and debugging. The device comprises a single chip microcomputer main control device and a power supply module. The single chip microcomputer main control device is connected with a USB to serial port chip, a digital temperature sensor, an infrared receiving chip, a real-time clock chip, an EEPROM chip, an RS232 conversion chip, an LED digital tube, an LED lamp group, a dial switch, a wireless module interface, an MP3 player interface, an LCD interface and 32 I/O outlets in four groups. The non-transparency of traditional connecting line mode teaching is overcome. The experimental device is configured with certain external interface, and while learning the data communication knowledge, the remote control and operation can be carried out.

Description

Single-chip microcomputer study experimental provision

Technical field

The utility model relates to a kind of single-chip microcomputer study experimental provision, but is specially a kind of single chip computer experiment circuit board of online programming debugging.

Background technology

Single-chip microcomputer is as a kind of entry level chip of embedded development, but important status is arranged in the student of specialties such as electronic information technology, because the contact of the course of single-chip microcomputer and reality is tight day by day, teaching to the course of single-chip microcomputer proposes better requirement, the teaching pattern of emulation in the past can not satisfy the demand of the high speed development of various processors, simultaneously because and the difference of practical devices ruuning situation, a lot of schools have all adopted the hardware teaching pattern, adopted the single-chip microcomputer facility for study of the producer of each teaching equipment to impart knowledge to students, but the equipment opening of each instrument producer exploitation is not strong, have one universality, do not have the characteristic of oneself, do not closely follow the paces of era development, teaching pattern is inflexible, the student dare not interest, does not have certain dirigibility, and safeguard relatively difficulty.

Summary of the invention

The utility model is at the problems referred to above, design and develop a kind of with single-chip microcomputer as controller, cooperate certain peripheral hardware to finish the microcomputer development plate of the experimental teaching of some.

Design proposal of the present utility model is as follows: single-chip microcomputer study experimental provision, comprise single-chip microcomputer master controller, power module, described single-chip microcomputer master controller is connected with USB changes serial port chip, digital temperature sensor, infrared receiving chip, realtime clock chip, eeprom chip, RS232 conversion chip, the LED charactron, LED lamp group, toggle switch, wireless module interface, MP3 player interface, LCD interface and 4 groups of 32 I/O outlets.

Described single-chip microcomputer master controller is the STC12C5A60S2 single-chip microcomputer, fully compatible traditional 8051 single-chip microcomputers of instruction code.

It is the CH340 chip that described USB changes serial port chip, is connected with the computer USB mouth by the USB line, communicates the confession with USB.Directly experimental provision is powered and downloaded by the computer USB mouth.

Described digital temperature sensor is the DS18B20 chip, can directly read temperature value; Described infrared receiving chip is the HS0038B chip, cooperates the mini telepilot with the development board dispensing to carry out the infrared remote control experiment; Described realtime clock chip is the DS1302 chip, can read, preserves clock information; Described RS232 conversion chip is MAX232, is connected with the computer serial ports by the BD9 Serial Port Line, realizes the serial communication with PC; Described LED charactron is 4 for charactron, and LED lamp group is 8 LED running lamps, can be used for showing the temperature that reads, data such as infrared.

Described wireless module interface is NRF2401 wireless module interface, and grafting NRF2401 module is used for the radio communication experiment; Described LCD interface is 1602 and 12,864 two LCD Interface, 1602 and 12864 liquid crystal displays of can directly pegging graft.

The utility model has adopted up-to-date single-chip microcomputer as controller, cooperates certain peripheral hardware to finish the experimental teaching of some, and its code is open, and is practical simple, overcomes the opacity of traditional connection mode teaching.The certain external interface of this experimental provision configuration can carry out long-range control and operation in the learning data communicating knowledge, can carry out the configuration of various parameters by computer simultaneously, has certain market prospect.

Description of drawings

Fig. 1 is structured flowchart of the present utility model;

Embodiment

The utility model is described in further detail below in conjunction with specific embodiment and Figure of description.Specific embodiment described herein is only in order to explaining the utility model, and is not used in restriction the utility model.

Embodiment: single-chip microcomputer study experimental provision, as shown in Figure 1, comprise single-chip microcomputer master controller, power module, described single-chip microcomputer master controller is connected with USB changes serial port chip, digital temperature sensor, infrared receiving chip, realtime clock chip, eeprom chip, the RS232 conversion chip, LED charactron, LED lamp group, toggle switch, wireless module interface, MP3 player interface, LCD interface and 4 groups of 32 I/O outlets.

The single-chip microcomputer master controller is the STC12C5A60S2 single-chip microcomputer, fully compatible traditional 8051 single-chip microcomputers of instruction code.The ISP(in-system programming)/IAP(is at application programming), need not special-purpose programmable device, directly by serial ports download user program.

USB changes serial port chip and adopts the CH340 chip, directly by the USB line development board is connected to computer, can directly power and download development board, the convenient use.Also can use as serial ports, realize single-chip microcomputer and compunlcation.

The single-chip microcomputer master controller is provided with one road PWM output interface, can be directly by the PWM ripple of the actual output of oscillograph observation and the change in duty cycle situation of waveform.

Digital temperature sensor adopts 12 high precision DS18B20 chips, can directly read temperature value, can carry out the real-time collection of temperature, the study monobus lin protocol.

Infrared receiving terminal chip HS0038B can cooperate the mini telepilot with the development board dispensing to carry out the infrared remote control experiment, and how study carries out infrared remote control, understands various infrared codings.

Realtime clock chip is the DS1302 chip, adopts SPI communication protocol to read and write data, the band backup battery, and outage also can be preserved clock information, can learn to do clock, and the SPI agreement is tested in the perpetual calendar experiment simultaneously.

Eeprom chip AT24C04 adopts the read-write of I2C agreement, can be used for saved system data commonly used, and this EEPROM outage can still be preserved data and do not lost.Can learn the use of outside EEPROM, understand the I2C agreement.

The RS232 conversion chip is MAX232, and is connected with serial line interface, is connected with the computer serial ports by the BD9 Serial Port Line, realizes and the serial communication of PC, can practise the use of RS232 agreement.

The LED charactron is 4 for charactron, and LED lamp group is 8 LED running lamps, can be used for showing the temperature that reads, data such as infrared.

The wireless module interface is NRF2401 wireless module interface, and grafting NRF2401 module is used for the radio communication experiment.

The LCD interface is 1602 and 12,864 two LCD Interface, 1602 and 12864 liquid crystal displays of can directly pegging graft, and study is to the demonstration refresh control of LCD.

The MP3 player interface is bought the MP3 module, can carry out MP3 decoding and play experiment.

The size of this experimental provision circuit board size is 9.9CM*9.6CM, easy to carry, use in the study place that experimental provision can be moved to non-laboratory, various peripheral components all are the devices of using always, produce and safeguard very conveniently, the download of data and power supply adopt a USB cable power supply, are fit to very much the user of notebook, allow the learner can develop exercise anywhere or anytime, also enlarge the time of teaching when not only enlarging the teaching place of learning.

Claims

1. single-chip microcomputer is learnt experimental provision, comprise single-chip microcomputer master controller, power module, it is characterized in that described single-chip microcomputer master controller is connected with USB changes serial port chip, digital temperature sensor, infrared receiving chip, realtime clock chip, eeprom chip, the RS232 conversion chip, LED charactron, LED lamp group, toggle switch, wireless module interface, MP3 player interface, LCD interface and 4 groups of 32 I/O outlets.

2. single-chip microcomputer according to claim 1 is learnt experimental provision, and it is characterized in that: described single-chip microcomputer master controller is the STC12C5A60S2 single-chip microcomputer.

3. single-chip microcomputer according to claim 1 is learnt experimental provision, it is characterized in that: it is the CH340 chip that described USB changes serial port chip, is connected with the computer USB mouth by the USB line, communicates the confession with USB.

4. single-chip microcomputer according to claim 1 is learnt experimental provision, and it is characterized in that: described digital temperature sensor is the DS18B20 chip; Described infrared receiving chip is the HS0038B chip; Described realtime clock chip is the DS1302 chip; Described RS232 conversion chip is MAX232, is connected with the computer serial ports by the BD9 Serial Port Line; Described LED charactron is 4 for charactron, and LED lamp group is 8 LED running lamps.

5. single-chip microcomputer according to claim 1 is learnt experimental provision, and it is characterized in that: described wireless module interface is NRF2401 wireless module interface; Described LCD interface is 1602 and 12,864 two LCD Interface.