CN105513472A - Multicore single-chip microcomputer embedded teaching experiment platform - Google Patents
Multicore single-chip microcomputer embedded teaching experiment platform Download PDFInfo
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Abstract
The invention discloses a multicore single-chip microcomputer embedded teaching experiment platform. With a 51-series single-chip microcomputer and a stm 32 as the core, hardware development of a multicore single-chip microcomputer embedded teaching experiment system can be designed and completed, and the multicore single-chip microcomputer embedded teaching experiment system is successfully debugged. In combination with hardware and teaching needs of the single-chip microcomputer and embedded system teaching experiment system, a series of infrastructure experiments, namely, infrastructure interface design experiments are developed. Meanwhile, to meet the needs for achieving innovative teaching and improving the integrated design ability of students, some integrated experiment items are developed.
Description
Technical field
The present invention relates to single-chip microcomputer and Embedded System Design and development field, particularly relate to the microcontroller embedded teaching experiment platform of a kind of multi-core.
Background technology
One chip microcomputer is called for short single-chip microcomputer (MicrocontrollerUnit), and conventional abbreviation MCU represents, is on a chip a Computer systems.Single-chip microcomputer, through the development of decades, has been widely used in the every field of productive life at present.The specialties such as the computer science and technology specialty of whole nation institution of higher learning and Electronics and Information Engineering, have generally offered the course that single-chip microcomputer is relevant." singlechip technology ", courses such as " Fundamentals of Mono-Chip Computers and interfacing are applied ", as the required specialized core course of Engineering Speciality, proposes higher requirement, especially Link of Practice Teaching to teaching.The teaching of singlechip technology must have the high-quality experimental courses of certain class hour to coordinate the teaching of Theory Course, and student only in this way just can be made better to grasp the exploitation of single-chip microcomputer, improves the ability starting to put into practice, cultivates initiative spirit.Therefore in learning process, fully should be understood as much as possible grasp and consolidate the performance of single-chip microcomputer by the operation experiments of various single-chip microcomputer, this is particularly important to the study and work of association area from now on.Now commercially available single chip computer teaching apparatus only has single programmed purpose, teaching and learning functionality not strong, student cannot go to understand the function grasping single-chip microcomputer and embedded system as much as possible by an equipment, for the learning life of student brings trouble, also easily causes the waste of teaching resource.
Summary of the invention
The technical problem to be solved in the present invention is to provide one and 51 series monolithics and stm32 can be utilized to be core, has designed the hardware development work of the microcontroller embedded teaching experiment system of multi-core, and has debugged successfully.All hardware circuit principle figure are provided, use to supply teaching.Hardware in conjunction with single-chip microcomputer and embedded system teaching experimental system needs with teaching, develops the experiment of a series of foundation class, i.e. base interface contrived experiment.
The technical solution used in the present invention is for achieving the above object: the microcontroller embedded teaching experiment platform of a kind of multi-core; comprise 51 single chip computer experiment core boards and stm32 embedded system expansion board; described 51 single chip computer experiment core boards comprise: 51 single-chip minimum systems, LED display module, 7 segment numeral pipe display modules, independence/matrix press-key module, modulus/D/A converter module, infrared module, temperature sensor module, E2PROM module, real-time clock module, hummer module, serial line interface, power source protective module.
Each functions of modules principle is as follows:
Wherein LED display module is made up of 8 light emitting diodes, can be used for the basic output Control release of I/O mouth, such as, write running lamp program, control the light on and off of light emitting diode, also can be used as the pilot lamp of equipment;
Data buffer module is made up of two-way three-state data buffer 74HC245.Can be used for the driving force of enhancing 51 series monolithic I/O mouth;
38 decoder module are made up of 74HC138.Can be used for carrying out the choosing of decoding sheet to 6 charactrons of 7 segment numeral pipe display modules;
7 segment numeral pipe display modules are made up of 6 common cathode charactrons, can be used for the display of numeral, such as, can be used for the data such as displaying time, date, temperature value, humidity value.
LCD1602 Liquid Crystal Module can be used for numeral, and the display of the simple characters such as letter, can use as the display module of hardware system;
LCD12864 Liquid Crystal Module carries Hanzi font library, can be used for the display of the characters such as numeral, letter, Chinese character, by the cooperation of Zemo, can also show some simple figures, can use as the display module of hardware system;
Independence/matrix press-key module is made up of 16 mechanical keys, can be used for the basic input experiment of I/O, writes the light on and off of button programmed control light emitting diode.This module can be used in the equipment development needing button, such as, need in digital perpetual calendar to need to use button during the adjustment carrying out time and date;
Analog-to-digital conversion module and D/A converter module are made up of PCF8591.Digital signal can be used for the conversion of simulating signal and simulating signal to the conversion of digital signal.Such as can be used for gathering the simulating signal obtained by pressure transducer, be converted to digital signal and calculate for single-chip microcomputer.Such as can be converted to analog signal output by digital signal, use in function signal generator, various function signal can be produced;
Infrared module is made up of TL1838, can be used for collection infrared signal, such as, can be used for the experiment of infrared remote control;
Temperature-measuring module is made up of the digital temperature sensor of DS18B20, can be used for gathering extraneous environment temperature, obtains temperature data in real time, such as, can be used for the design of temperature measuring set;
E
2pROM module is made up of AT24C02, be one based on I
2the E of C bussing technique
2pROM, can be used for storing data, power down is not lost, such as, can be used for the design of digital cipher lock.Also can be used for carrying out I
2c bussing technique is tested;
Real-time clock module is made up of DS1302, can be used for the experiment of real-time clock, such as, be used for the design of digital perpetual calendar;
Hummer module is made up of hummer, can be used for carrying out the experiment of hummer, such as, note can be used based on the principle of characteristic frequency, complete the performance of different song;
Serial port module is made up of the serial ports female of 9 pins, can be used for carrying out the serial communication of single-chip microcomputer and host computer, also can turn USB line by external serial ports, by downloaded program to single-chip microcomputer.
Circuit protection module is made up of a SMD fuse, can be used for protection 51 single chip computer experiment core board;
When carrying out the simulation hardware of 51 series monolithic programs, can on the single-chip microcomputer socket directly in ST89E564RD single-chip microcomputer loading test core board, KEIL software be used to emulate at PC end;
Above-mentioned module is all connected with 51 single chip computer experiment core boards by bus.
Described stm32 embedded system expansion board is made up of STM32F103 and peripheral circuit.Form the minimum system of a STM32.Stm32 embedded system expansion board is inserted in the DIP-40 integrated package socket on 51 single chip computer experiment core boards, just can be used for carrying out the embedded system related experiment based on STM32, and μ C/OSII operating system can be transplanted.Stm32 embedded system expansion board has a jtag interface, when carrying out stm32 embedded system experiment, J-LINK emulator can be inserted jtag interface, carrying out the exploitation of ARM program and the simulation hardware debugging efforts of program.
Beneficial effect: attainable 51 series monolithics of the present invention and STM32 embedded system experiment program enumerate the model experiment content of current 51 series monolithics and the application in communication, control, measurement of STM32 embedded system.Such as: human-computer interaction interface realizes, and infrared signal transmission, temperature sensing, serial ports RS232 communicates, I
2c bus, A/D analog to digital converter, D/A digital to analog converter, LCD multilevel menu and display of graphic Chinese character, the formulation of communication protocol and realization, the formulation of solid-state memory storage protocol and the realization of search algorithm.By design mode and the general style experiment program development of this experiment porch, single-chip microcomputer and embedded system principle and characteristics technology can be learnt with explaining the profound in simple terms, the program capability of single-chip microcomputer and embedded system can not only be improved, ability of creative can also be tempered, form the complete concept of single-chip microcomputer and embedded system engineer applied, and many design modules are revised a little and just can be transplanted in concrete engineering application item, have the results of learning of getting twice the result with half the effort.
Experiment porch of the present invention is applicable to experiment, the practice-training teaching of each bachelor degree single-chip microcomputer of electronic information class and embedded system course, also can be used as the desirable development board that numerous scientific workers learn single-chip microcomputer and Embedded System Design technology.
The present invention is by integrated and modular experiment porch structure, for student carries out open self-experiment, autonomous innovation practice and scientific research experiment provide exercisable hardware platform, student is enable to obtain comprehensive skill training, strengthen and consolidated the effect of study, enhance student's understanding and grasping single-chip microcomputer and embedded system performance and function, improve learning efficiency and results of learning.
Accompanying drawing explanation
Fig. 1 is frame diagram of the present invention.
Embodiment
Below, in conjunction with example, substantive distinguishing features of the present invention and advantage are further described, but the present invention is not limited to listed embodiment.
Refer to shown in Fig. 1, the microcontroller embedded teaching experiment platform of a kind of multi-core, comprise 51 series monolithic experiment core boards, when needs carry out single chip computer experiment, 51 series monolithics encapsulated by DIP40 insert in the DIP-40 integrated package socket on core board.
The present invention also comprises a STM32 embedded system expansion board, when needs carry out STM32 embedded system experiment, first 51 series monolithics are extracted from DIP-40 integrated package socket, then STM32 embedded system expansion board is inserted in DIP-40 integrated package socket.
The present invention uses USB interface 5V to power, and on pcb board, adds SMD fuse protect.
The invention provides a serial ports, when use 51 series monolithic is tested, USB line can be turned by an external serial ports, carry out the download of program.Also this serial ports can be utilized to carry out serial communication experiment simultaneously, realize the communication between host computer and slave computer.
Four of 51 series monolithics groups of I/O mouths, 32 pins are all drawn, core board arranges two rows totally 32 row's pins.When carrying out comprehensive experiment or project development, the external various sensor of row's pin of extraction or hardware module can be utilized.
As shown in Figure 1,8 LED light emitting diodes of LED display module are connected with the P2 mouth of 51 series monolithics by data buffer module.Independence/matrix press-key model calling is to the P0 mouth of 51 series monolithics.The section gating of 7 segment numeral pipe display modules, 6 common cathode charactrons is crossed and is connected with the P2 mouth of single-chip microcomputer according to buffer module.Position gating is crossed 38 decoder module and is connected with P10, P11, P12 of the P1 mouth of 51 series monolithics.The control end of LCD1602 Liquid Crystal Module is connected with P10, P11, P12 of the P1 mouth of 51 series monolithics, and data terminal is connected with the P2 mouth of single-chip microcomputer.The control end of LCD12864 Liquid Crystal Module is connected with P10, P11, P12, P13, P14 of the P1 mouth of 51 series monolithics, and data terminal is connected with the P2 mouth of 51 series monolithics.
The DS18B20 of temperature sensor module is connected with the P17 of 51 series monolithic P1 mouths.The TL1838 of infrared module is connected with the P16 of 51 series monolithic P1 mouths.Hummer module is connected with the P15 of 51 series monolithics.Three pins of real-time clock module DS1302 are connected with INT1, T1, T0 pin of 51 series monolithics respectively.E
2two pins of the AT24C02 of PROM module are connected with RD and the WR pin of 51 series monolithics respectively.Two pins of the PCF8591 of digital-to-analog conversion/analog-to-digital conversion module are connected with RD and the WR pin of 51 series monolithics respectively.
During use, utilize the KEIL software programming program of computer terminal, then utilize and download software the program finished writing is downloaded in 51 series monolithics by serial ports, peripheral components is controlled, forms an available system.
Further, if the embedded expansion board of recycling STM, the relevant device based on STM32 can namely be developed.
Embodiment
DS1302, LCD12864 Liquid Crystal Module of real-time clock module and matrix press-key module and 51 series monolithics is utilized jointly to form a digital perpetual calendar.Utilize temperature sensor module, LCD1602 Liquid Crystal Module, a more external humidity sensor, just can complete the design of a temp .-humidity measuring apparatus.
In order to meet the needs of monographic experiment and raising Students ' Comprehensive designed capacity etc., develop some comprehensive experimental projects.Such as, digital electronic clock is tested, and Simple calculator is tested, and temperature control system experiment etc. are for imparting knowledge to students and single-chip microcomputer and embedded system Course Exercise and graduation project.
Develop the hardware emulator based on SST89E564RD, with the simulation hardware debugging enabling student learn single-chip microcomputer on classroom, the development technique of real grasp single-chip microcomputer.
When carrying out ARM experiment, STM32 embedded system expansion board being inserted in 51 single chip computer experiment core boards, and connects the exploitation debugging efforts that namely J-Link emulator can carry out ARM program.
Single-chip microcomputer experiment system in existing market only can carry out the experiment of 51 single-chip microcomputers substantially, and the present invention not only can complete the experiment of 51 series monolithics, supports the experiment of the stm32 embedded system based on ARMcortex-M3 kernel too.
Attainable 51 series monolithics of the present invention and STM32 embedded system experiment program enumerate the model experiment content of current 51 series monolithics and the application in communication, control, measurement of STM32 embedded system.Such as: human-computer interaction interface realizes, infrared signal transmission, and serial ports RS232 communicates, I2C bus, A/D analog to digital converter, D/A digital to analog converter, LCD multilevel menu and display of graphic Chinese character, the formulation of communication protocol and realization, the formulation of solid-state memory storage protocol and the realization of search algorithm.By design mode and the general style experiment program development of this experiment porch, single-chip microcomputer and embedded system principle and characteristics technology can be learnt with explaining the profound in simple terms, the program capability of single-chip microcomputer and embedded system can not only be improved, ability of creative can also be tempered, form the complete concept of single-chip microcomputer and embedded system engineer applied, and many design modules are revised a little and just can be transplanted in concrete engineering application item, have the results of learning of getting twice the result with half the effort.Experiment porch of the present invention is applicable to experiment, the practice-training teaching of each bachelor degree single-chip microcomputer of electronic information class and embedded system course, also can be used as the desirable development board that numerous scientific workers learn single-chip microcomputer and Embedded System Design technology.
Claims (4)
1. the microcontroller embedded teaching experiment platform of multi-core, it is characterized in that, comprise 51 single chip computer experiment core boards and stm32 embedded system expansion board, described 51 single chip computer experiment core boards comprise: LED display module, 7 segment numeral pipe display modules, independence/matrix press-key module, modulus/D/A converter module, infrared module, temperature sensor module, E
2pROM module, real-time clock module, hummer module, serial line interface, power source protective module, 38 decoder module, data buffer module, LCD1602 Liquid Crystal Module, LCD12864 Liquid Crystal Module;
LED display module: be made up of 8 light emitting diodes, has been used for the basic output Control release of I/O mouth;
7 segment numeral pipe display modules: be made up of 6 common cathode charactrons, be used for numeral display;
Independence/matrix press-key module: be made up of 16 mechanical keys, has been used for the basic input experiment of I/O;
Modulus/D/A converter module: be made up of PCF8591.
2. be used for digital signal to the conversion of simulating signal and simulating signal to the conversion of digital signal;
Infrared module: be made up of TL1838, has been used for collection infrared signal;
Temperature sensor module: be made up of the digital temperature sensor of DS18B20, is used for gathering extraneous environment temperature, obtains temperature data in real time;
E
2pROM module is made up of AT24C02, is an E based on I2C bussing technique
2pROM, is used for storing data;
Real-time clock module: be made up of DS1302, has been used for the experiment of real-time clock;
Hummer module: be made up of hummer, is used for carrying out the experiment of hummer;
Serial line interface: be made up of the serial ports female of 9 pins, the serial communication and the external serial ports that are used for carrying out single-chip microcomputer and host computer turn USB line;
Power source protective module: be made up of a SMD fuse, is used for protection 51 single chip computer experiment core board;
38 decoder module: be made up of 74HC138, have been used for carrying out the choosing of decoding sheet to 6 charactrons of 7 segment numeral pipe display modules;
Data buffer module: be made up of two-way three-state data buffer 74HC245, is used for the driving force of enhancing 51 series monolithic I/O mouth;
LCD1602 Liquid Crystal Module: as the display module of hardware system, has been used for numeral, the display of the simple characters such as letter;
LCD12864 Liquid Crystal Module: as the another display module of hardware system, carry Hanzi font library, has been used for the display of numeral, letter, Chinese character, by the cooperation of Zemo, shows some simple figures;
Above-mentioned module is all connected with 51 single chip computer experiment core boards by bus.
3. the microcontroller embedded teaching experiment platform of a kind of multi-core as claimed in claim 1, it is characterized in that, described stm32 embedded system expansion board is made up of STM32F103 and peripheral circuit, forms the minimum system of a STM32.
4. the microcontroller embedded teaching experiment platform of a kind of multi-core as claimed in claim 1, it is characterized in that, described 51 single chip computer experiment core boards are provided with the DIP-40 integrated package socket that can insert when can carry out single chip computer experiment or stm32 embedded system experiment and wherein carry out testing.
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Cited By (7)
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| CN106710396A (en) * | 2017-02-27 | 2017-05-24 | 孙宝法 | Micro-control system comprehensive practical training platform based on single chip microcomputer |
| CN107204142A (en) * | 2017-06-01 | 2017-09-26 | 安徽福讯信息技术有限公司 | One kind is based on single-chip microcomputer and Embedded training platform system |
| CN108417135A (en) * | 2018-05-09 | 2018-08-17 | 广东技术师范学院 | More Teaching platforms and its control method |
| CN108447361A (en) * | 2018-03-27 | 2018-08-24 | 中国海洋大学 | Electronic Experiment Teaching platform and experimental method |
| CN108520683A (en) * | 2018-04-11 | 2018-09-11 | 广东松山职业技术学院 | The shared single platform experimental teaching unit of more kernels |
| CN109949671A (en) * | 2019-04-24 | 2019-06-28 | 河北工业大学 | A kind of teaching experiment platform based on STM32 single-chip microcontroller |
| CN116030691A (en) * | 2023-03-24 | 2023-04-28 | 江西工业职业技术学院 | Singlechip experimental system and experimental method thereof |
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