CN204348194U - A kind of single-chip microcomputer and experimental panel for programmable logic device - Google Patents
A kind of single-chip microcomputer and experimental panel for programmable logic device Download PDFInfo
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- CN204348194U CN204348194U CN201520026466.9U CN201520026466U CN204348194U CN 204348194 U CN204348194 U CN 204348194U CN 201520026466 U CN201520026466 U CN 201520026466U CN 204348194 U CN204348194 U CN 204348194U
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Abstract
The utility model discloses a kind of single-chip microcomputer and experimental panel for programmable logic device; Belong to teaching aid technical field; The power interface that its technical essential comprises brassboard main body and is located in brassboard main body, power interface is connected to single-chip minimum system, programmable logic device (PLD) power circuit; Programmable logic device (PLD) power circuit is connected with programmable logic device (PLD) minimum system, and programmable logic device (PLD) minimum system is connected with jtag interface circuit; Single-chip minimum system is connected with level shifting circuit, and level shifting circuit is connected with mcu programming/debugging interface; Single-chip minimum system is connected with load module; Single-chip minimum system is connected with output module; The utility model aims to provide a kind of easy to use, respond well single-chip microcomputer and experimental panel for programmable logic device; For experiment.
Description
Technical field
The utility model relates to a kind of brassboard, more particularly, particularly relates to a kind of single-chip microcomputer and experimental panel for programmable logic device.
Background technology
Single-chip microcomputer, digital circuit and Digital Logic, electric design automation are colleges and universities' electronic information and automatically control the very important specialized course of class subject three, the Link role of taking over from the past and setting a new course for the future is played in curricular system, the quality of quality of instruction, even can the employment of left and right student.
The best method learning above-mentioned three subjects well starts to put into practice exactly.The existing commercial experimental system hardware of Scientific Research in University Laboratory is fixed and not exclusively transparent, and student can only carry out limited replication experiment.In learning process, many students can buy various small test plate from on-line shop.The benefit done so directly to use, and defect is that student understands not deep enough to the hardware of brassboard system, and the brassboard of purchase often can only meet the teaching demand of certain a branch of instruction in school, and price is more expensive, and the general character part of each brassboard can not be reused.More existing singlechip experimental boards on market, during to single-chip microcomputer burning firmware, must use the downloader additionally purchased; If want to realize copying, then to purchase singlechip emulator again.No matter be downloader or emulator, its cost is all higher, even higher than brassboard.
From the learning cost reducing student, improve students ' practical ability, training student grasps microprocessor architecture design method for designing, meet enterprise to set out to these four angles of the skill set requirements of job hunter, be necessary that self-control is a single-chip microcomputer and programmable logic device (PLD) are united two into one, multi-door course teaching demand can be met, and can carry out downloading, the experiment teaching instrument of burning program.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of easy to use, respond well single-chip microcomputer and experimental panel for programmable logic device.
The technical solution of the utility model is achieved in that a kind of single-chip microcomputer and experimental panel for programmable logic device, the power interface comprising brassboard main body and be located in brassboard main body, power interface is connected to single-chip minimum system and programmable logic device (PLD) power circuit; Programmable logic device (PLD) power circuit is connected with programmable logic device (PLD) minimum system, and programmable logic device (PLD) minimum system is connected with jtag interface circuit; Single-chip minimum system is connected with level shifting circuit, and level shifting circuit is connected with mcu programming/debugging interface; Single-chip minimum system is connected with load module; Single-chip minimum system is connected with output module.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, single-chip minimum system comprises single-chip microcomputer, reset circuit of SCM, Singlechip clock circuit and single-chip I/O mouth expansion interface.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, programmable logic device (PLD) minimum system comprises programmable logic device (PLD), programmable logic device (PLD) reset circuit, programmable logic device (PLD) clock circuit and programmable logic device (PLD) I/O port expansion interface.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, single-chip microcomputer is connected with automatic control module, and described automatic control module comprises Darlington transistor driving circuit, motor interface and relay circuit.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, single-chip microcomputer is connected with analog module, and described analog module comprises analog to digital conversion analog voltage and produces circuit and D/A converting circuit.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, single-chip microcomputer is connected with detection of obstacles module, and described detection of obstacles module comprises ultrasonic wave module interface and infrared emission receives pipe circuit.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, single-chip microcomputer is connected with serial bus module, and described serial bus module comprises Temperature Humidity Sensor circuit, temperature sensor circuit, electric erasable programmable memory device circuit, real time clock circuit and short-range wireless communication module interface.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, be provided with mounting hole in brassboard body rim, in mounting hole, be provided with support column.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, described output module comprises Chinese character liquid crystal interface, OLED liquid crystal interface, character liquid crystal interface, quaternity common anode charactron interface, passive buzzer circuit, circuit of LED, 8 × 8 monochromatic LED dot matrix circuit and LED drive circuits; LED drive circuit and quaternity common anode charactron interface tandem, 8 × 8 monochromatic LED dot matrix circuit are in parallel with quaternity common anode charactron interface.
In above-mentioned a kind of single-chip microcomputer and experimental panel for programmable logic device, described load module comprises toggle switch circuit, infrared receiving terminal circuit and matrix keyboard.
After the utility model adopts said structure, brassboard integrates emulation, downloads and test, difference as required, installs the single-chip microcomputer of different model, the download program write by computing machine by mcu programming/debugging interface, to STC12C5A60S2 single-chip microcomputer, carries out full speed running experiment; The program of being write by computing machine by mcu programming/debugging interface is loaded on SST89E516RD single-chip microcomputer, carries out simulation hardware, debugged program; By jtag interface by CPLD download program to EPM7128SLC84, carry out full speed running experiment.All functions module resource on brassboard independently can control by single-chip microcomputer or programmable logic device (PLD).
The utility model has the following advantages, feature:
The first, the single-chip microcomputer that the utility model has that cost performance is high, powerful, aboundresources in sheet, I/O interface quantity are many and programmable logic device (PLD), can be used for beginner and learn two kinds of dissimilar processors simultaneously.
Second, the integrated load module of the utility model, output module, serial bus module, analog module, automatic control module and detection of obstacles module etc., make brassboard have powerful periphery to support, these modules can control separately by single-chip microcomputer or programmable logic device (PLD), the utilization factor of peripheral components can be improved, save equipment purchasing cost.
3rd, all I/O interface of the utility model single-chip microcomputer and programmable logic device (PLD) are all passed through to arrange pin and are drawn, and person easy to use is with this brassboard for motherboard, and other equipment of connection control, carry out secondary development experiment.
4th, the utility model as required, can be installed the single-chip microcomputer of different model, is not needed extra hardware device support, can realize simulation hardware and download function.Other burning program DIP40 encapsulate general 51 series monolithics, can be directly installed on this brassboard, utilize the module on this brassboard to test.
5th, programmable logic device (PLD) power supply of the present utility model has 5V and 3.3V two kinds selection, makes programmable logic device (PLD) can be independent of two kinds of different operating at voltages, person easy to use with this brassboard for motherboard, control the peripherals of different operating voltage, carry out way of extensive experimentation.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit side connector mount structure schematic diagram.
In figure: brassboard main body 1, mounting hole 1a, power interface 2, single-chip minimum system 3, single-chip microcomputer 3a, reset circuit of SCM 3b, Singlechip clock circuit 3c, single-chip I/O mouth expansion interface 3d, programmable logic device (PLD) power circuit 4, programmable logic device (PLD) minimum system 5, programmable logic device (PLD) 5a, programmable logic device (PLD) reset circuit 5b, programmable logic device (PLD) clock circuit 5c, programmable logic device (PLD) I/O port expansion interface 5d, jtag interface circuit 6, level shifting circuit 7, mcu programming/debugging interface 8, load module 9, output module 10, Darlington transistor driving circuit 11, motor interface 12, relay circuit 13, analog to digital conversion analog voltage produces circuit 14, D/A converting circuit 15, ultrasonic wave module interface 16, infrared emission receives pipe circuit 17, Temperature Humidity Sensor circuit 18, temperature sensor circuit 19, electric erasable programmable memory device circuit 20, real time clock circuit 21, short-range wireless communication module interface 22, Chinese character liquid crystal interface 23, OLED liquid crystal interface 24, character liquid crystal interface 25, quaternity common anode charactron interface 26, passive buzzer circuit 27, circuit of LED 28, 8 × 8 monochromatic LED dot matrix circuit 29, LED drive circuit 30, toggle switch circuit 31, infrared receiving terminal circuit 32, matrix keyboard 33.
Embodiment
Consult shown in Fig. 1 and Fig. 2, a kind of single-chip microcomputer of the present utility model and experimental panel for programmable logic device, comprise brassboard main body 1 and be located at the power interface 2 in brassboard main body 1, mounting hole 1a is provided with at brassboard main body 1 edge, support column is provided with in mounting hole 1a, support column is padded by brassboard, in order to avoid the circuit below brassboard touches other conductors, causes short circuit.Power interface 2 is connected to single-chip minimum system 3 and programmable logic device (PLD) power circuit 4.Single-chip minimum system 3 comprises single-chip microcomputer 3a, reset circuit of SCM 3b, Singlechip clock circuit 3c and single-chip I/O mouth expansion interface 3d.Preferably, the model of single-chip microcomputer 3a is STC12C5A60S2 or SST89E516RD.Preferably, in programmable logic device (PLD) power circuit 4, the model of programmable logic device (PLD) power supply voltage stabilizing chip is ASM1117-3.3.Programmable logic device (PLD) power circuit 4 is connected with programmable logic device (PLD) minimum system 5, and programmable logic device (PLD) minimum system 5 comprises programmable logic device (PLD) 5a, programmable logic device (PLD) reset circuit 5b, programmable logic device (PLD) clock circuit 5c and programmable logic device (PLD) I/O port expansion interface 5d.Preferably, the model of programmable logic device (PLD) 5a is EPM7128SLC84.Programmable logic device (PLD) minimum system 5 is connected with jtag interface circuit 6.Single-chip minimum system 3 is connected with level shifting circuit 7, and preferably, in level shifting circuit 7, the model of level translator is MAX232CPE.Level shifting circuit 7 is connected with mcu programming/debugging interface 8, and preferably, mcu programming/debugging interface 8 is DB9 female RS232 serial ports.Single-chip minimum system 3 is connected with load module 9, and described load module 9 comprises toggle switch circuit 31, infrared receiving terminal circuit 32 and matrix keyboard 33, and load module 9 can be used for the control information identifying user.Preferably, in infrared receiving terminal circuit 32, the model of infrared receiving terminal is TL1838, matrix keyboard 33 is made up of 16 touch-switchs, under the control of keyboard work mode control terminal, matrix keyboard 33 can work in 1 × 4 Independent keys and 4 × 4 matrix keyboards, two kinds of modes, to improve the utilization factor of hardware; When single-chip microcomputer 3a completes 4 × 4 matrix keyboard experiment, line scanning method, column scan method and line reversal process can be adopted.Single-chip minimum system 3 is connected with output module 10, described output module 10 comprises Chinese character liquid crystal interface 23, OLED liquid crystal interface 24, character liquid crystal interface 25, quaternity common anode charactron interface 26, passive buzzer circuit 27, circuit of LED 28,8 × 8 monochromatic LED dot matrix circuit 29 and LED drive circuit 30, and output module 10 can complete sound, light output experiment.LED drive circuit 30 is connected with quaternity common anode charactron interface 26,8 × 8 monochromatic LED dot matrix circuit 29 are in parallel with quaternity common anode charactron interface 26, LED drive circuit 30 realizes Current amplifier function, for driving quaternity common anode charactron and 8 × 8 monochromatic LED dot matrix, preferably, in LED drive circuit 30, the model of LED driver is S9012.
Preferably, the Chinese character liquid crystal that Chinese character liquid crystal interface 23 connects is 128 × 64 general dot matrix type liquid crystal, can complete Chinese character, character or image display experiment.The OLED display that OLED liquid crystal interface 24 connects is 128 × 64 general Organic Electricity laser writers, can complete Chinese character, character or image display experiment; The character liquid crystal that character liquid crystal interface 25 connects is 16 × 2 general dot matrix type liquid crystal, can complete Charactes Display experiment.During use, contrast or the backlight of Chinese character liquid crystal is regulated by Chinese character lcd contrast adjusting knob or Chinese character LCD backlight gauge tap, contrast or the backlight of character liquid crystal is regulated by character liquid crystal contrast adjustment knob or character liquid crystal backlight control switch, make the result of experiment more clear, visible, in the present embodiment, Chinese character lcd contrast regulating circuit and Chinese character LCD backlight control circuit, character liquid crystal contrast adjustment circuit and character liquid crystal backlight control circuit to be all integrated in brassboard main body 1 and to be connected with corresponding interface.The quaternity common anode charactron that quaternity common anode charactron interface 26 connects, can complete the experiment of charactron dynamic scan; 8 × 8 monochromatic LED dot matrix can adopt spot scan, line scanning and column scan three kinds of working methods.
Further, single-chip microcomputer 3a of the present utility model can also be connected with other modules some, carries out various different experiments:
Single-chip microcomputer 3a is connected with automatic control module, for carrying out Experiments of Automatic Control.Described automatic control module comprises Darlington transistor driving circuit 11, motor interface 12 and relay circuit 13.Preferably, the Darlington transistor drive model that Darlington transistor driving circuit 11 connects is ULN2003; The model of the stepper motor that motor interface 12 connects is 28BYJ-48.
Single-chip microcomputer 3a is connected with analog module, and described analog module comprises analog to digital conversion analog voltage and produces circuit 14 and D/A converting circuit 15.Analog to digital conversion analog voltage produces circuit 14 can carry out analog to digital conversion experiment, and D/A converting circuit 15 can carry out digital-to-analog conversion experiment.
Single-chip microcomputer 3a is connected with detection of obstacles module, for carrying out detection of obstacles experiment.Described detection of obstacles module comprises ultrasonic wave module interface 16 and infrared emission receives pipe circuit 17.Preferably, in ultrasonic wave module interface 16, the model of ultrasonic wave module is KX-U0904; Infrared emission receives and receives the model of pipe infrared emission in pipe circuit 17 is ST178.
Single-chip microcomputer 3a is connected with serial bus module, and described serial bus module comprises Temperature Humidity Sensor circuit 18, temperature sensor circuit 19, electric erasable programmable memory device circuit 20, real time clock circuit 21 and short-range wireless communication module interface 22.Preferably, in Temperature Humidity Sensor circuit 18, the model of Temperature Humidity Sensor is DHT11, for the humiture of test experience panel area environment; In temperature sensor circuit 19, the model of temperature sensor is DS18B20, for the temperature of test experience panel area environment; In electric erasable programmable memory device circuit 20, the model of electric erasable programmable memory device is AT24C02, for completing I
2c bus communication, the function of data is preserved in the power down of checking eeprom memory; In real time clock circuit 21, the model of real-time clock is DS1302, for completing the serial communication of three-wire system spi bus, does real-time clock experiment; Be nRF24L01 in the model of short-range wireless communication module interface 22 short-distance and medium-distance wireless communication module, for completing four-wire system spi bus communication experiment.
During use, outside provides the DC voltage of 5V to power interface 2, power interface 2 adopts the direct current jack of 5V, the DC voltage exported connects the pin of single-chip microcomputer 3a, simultaneously, carry out voltage transitions by programmable logic device (PLD) circuit 4, the voltage after conversion is supplied to programmable logic device (PLD) 5a as input power.Use serial ports of computers to connect mcu programming/debugging interface 8, level shifting circuit 7 plays level conversion effect, thus realizes the serial communication of computing machine and single-chip microcomputer 3a.Use computing machine to be connected with jtag interface circuit 6, realize the communication of computing machine and programmable logic device (PLD) 5a.Single-chip microcomputer 3a and programmable logic device (PLD) 5a all can control inputs module 9, output module 10, serial bus module, analog module, automatic control module and detection of obstacles module etc. separately, make brassboard have powerful periphery to support, the utilization factor of peripheral components can be improved, save equipment purchasing cost.
Above illustrated embodiment is better embodiment of the present utility model, only be used for conveniently the utility model being described, not any pro forma restriction is done to the utility model, have in any art and usually know the knowledgeable, if do not depart from the utility model carry in the scope of technical characteristic, utilize the utility model disclose the Equivalent embodiments changing or modify in the done local of technology contents, and do not depart from technical characteristic content of the present utility model, all still belong in the scope of the utility model technical characteristic.
Claims (10)
1. a single-chip microcomputer and experimental panel for programmable logic device, comprise brassboard main body (1) and be located at the power interface (2) in brassboard main body (1), it is characterized in that, power interface (2) is connected to single-chip minimum system (3) and programmable logic device (PLD) power circuit (4); Programmable logic device (PLD) power circuit (4) is connected with programmable logic device (PLD) minimum system (5), and programmable logic device (PLD) minimum system (5) is connected with jtag interface circuit (6); Single-chip minimum system (3) is connected with level shifting circuit (7), and level shifting circuit (7) is connected with mcu programming/debugging interface (8); Single-chip minimum system (3) is connected with load module (9); Single-chip minimum system (3) is connected with output module (10).
2. a kind of single-chip microcomputer according to claim 1 and experimental panel for programmable logic device, it is characterized in that, single-chip minimum system (3) comprises single-chip microcomputer (3a), reset circuit of SCM (3b), Singlechip clock circuit (3c) and single-chip I/O mouth expansion interface (3d).
3. a kind of single-chip microcomputer according to claim 1 and experimental panel for programmable logic device, it is characterized in that, programmable logic device (PLD) minimum system (5) comprises programmable logic device (PLD) (5a), programmable logic device (PLD) reset circuit (5b), programmable logic device (PLD) clock circuit (5c) and programmable logic device (PLD) I/O port expansion interface (5d).
4. a kind of single-chip microcomputer according to Claims 2 or 3 and experimental panel for programmable logic device, it is characterized in that, single-chip microcomputer (3a) is connected with automatic control module, and described automatic control module comprises Darlington transistor driving circuit (11), motor interface (12) and relay circuit (13).
5. a kind of single-chip microcomputer according to Claims 2 or 3 and experimental panel for programmable logic device, it is characterized in that, single-chip microcomputer (3a) is connected with analog module, and described analog module comprises analog to digital conversion analog voltage and produces circuit (14) and D/A converting circuit (15).
6. a kind of single-chip microcomputer according to Claims 2 or 3 and experimental panel for programmable logic device, it is characterized in that, single-chip microcomputer (3a) is connected with detection of obstacles module, and described detection of obstacles module comprises ultrasonic wave module interface (16) and infrared emission receives pipe circuit (17).
7. a kind of single-chip microcomputer according to Claims 2 or 3 and experimental panel for programmable logic device, it is characterized in that, single-chip microcomputer (3a) is connected with serial bus module, and described serial bus module comprises Temperature Humidity Sensor circuit (18), temperature sensor circuit (19), electric erasable programmable memory device circuit (20), real time clock circuit (21) and short-range wireless communication module interface (22).
8. a kind of single-chip microcomputer according to claim 1 and experimental panel for programmable logic device, is characterized in that, is provided with mounting hole (1a) at brassboard main body (1) edge, in mounting hole (1a), be provided with support column.
9. a kind of single-chip microcomputer according to claim 1 and experimental panel for programmable logic device, it is characterized in that, described output module (10) comprises Chinese character liquid crystal interface (23), OLED liquid crystal interface (24), character liquid crystal interface (25), quaternity common anode charactron interface (26), passive buzzer circuit (27), circuit of LED (28), 8 × 8 monochromatic LED dot matrix circuit (29) and LED drive circuit (30); LED drive circuit (30) is connected with quaternity common anode charactron interface (26), and 8 × 8 monochromatic LED dot matrix circuit (29) are in parallel with quaternity common anode charactron interface (26).
10. a kind of single-chip microcomputer according to claim 1 and experimental panel for programmable logic device, it is characterized in that, described load module (9) comprises toggle switch circuit (31), infrared receiving terminal circuit (32) and matrix keyboard (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026466.9U CN204348194U (en) | 2015-01-14 | 2015-01-14 | A kind of single-chip microcomputer and experimental panel for programmable logic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520026466.9U CN204348194U (en) | 2015-01-14 | 2015-01-14 | A kind of single-chip microcomputer and experimental panel for programmable logic device |
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| CN204348194U true CN204348194U (en) | 2015-05-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875793A (en) * | 2017-02-16 | 2017-06-20 | 深圳盛思科教文化有限公司 | Modularized electronic instructional device and its joining method |
| CN109166423A (en) * | 2018-09-27 | 2019-01-08 | 深圳盛思科教文化有限公司 | Development board and learning aids |
| CN109358849A (en) * | 2018-10-31 | 2019-02-19 | 陈黎明 | A kind of machine programming system |
| CN109509391A (en) * | 2018-11-19 | 2019-03-22 | 徐州工程学院 | A kind of opening modularization EDA teaching experimental |
| CN111768660A (en) * | 2020-06-03 | 2020-10-13 | 北京智趣工场教育科技有限公司 | Programming learning equipment and assembling support thereof |
-
2015
- 2015-01-14 CN CN201520026466.9U patent/CN204348194U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875793A (en) * | 2017-02-16 | 2017-06-20 | 深圳盛思科教文化有限公司 | Modularized electronic instructional device and its joining method |
| CN109166423A (en) * | 2018-09-27 | 2019-01-08 | 深圳盛思科教文化有限公司 | Development board and learning aids |
| CN109166423B (en) * | 2018-09-27 | 2021-04-06 | 深圳盛思科教文化有限公司 | Development board and learning teaching aid |
| CN109358849A (en) * | 2018-10-31 | 2019-02-19 | 陈黎明 | A kind of machine programming system |
| CN109509391A (en) * | 2018-11-19 | 2019-03-22 | 徐州工程学院 | A kind of opening modularization EDA teaching experimental |
| CN111768660A (en) * | 2020-06-03 | 2020-10-13 | 北京智趣工场教育科技有限公司 | Programming learning equipment and assembling support thereof |
| CN111768660B (en) * | 2020-06-03 | 2021-06-25 | 北京智趣工场教育科技有限公司 | Assembly support of programming learning equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20210114 |