CN203026023U - Experimental development board of single chip - Google Patents
Experimental development board of single chip Download PDFInfo
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- CN203026023U CN203026023U CN 201320020942 CN201320020942U CN203026023U CN 203026023 U CN203026023 U CN 203026023U CN 201320020942 CN201320020942 CN 201320020942 CN 201320020942 U CN201320020942 U CN 201320020942U CN 203026023 U CN203026023 U CN 203026023U
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Abstract
The utility model discloses an experimental development board of a single chip. The experimental development board disclosed by the utility model comprises an interface protection circuit, a single chip and a power supply circuit and further comprises a crystal oscillation circuit, a reset circuit, a serial port communication circuit, a CAN (Controller Area Network) bus communication circuit and a USB (Universal Serial Bus) communication circuit connected to the single chip, wherein an input interface circuit is connected to an input end of the single chip; a clock circuit, a 4*4 array keyboard and an infrared receiving circuit are connected to the input interface circuit; an output interface circuit is connected to an output end of the single chip; an LED (Light Emitting Diode) nixie tube drive circuit, an LCD (Liquid Crystal Display) drive circuit and a plurality of LED lamps are connected to the output interface circuit; a nixie tube interface circuit and a quaternity nixie tube are in sequence connected to an output end of the LED nixie tube drive circuit; and a liquid crystal display screen interface circuit and a 12864 liquid crystal display screen are in sequence connected to an output end of the LCD drive circuit. The experimental development board of the single chip disclosed by the utility model has the advantages of complete function, good scalable performance, high reliability and wide range of application.
Description
Technical field
The utility model belongs to the experimental facilities technical field, especially relates to a kind of single-chip experimental development plate.
Background technology
Single-chip microcomputer is widely used in household electrical appliances, intelligence system and electrical type experimental teaching, and single-chip microcomputer and relevant peripheral hardware have consisted of the microcomputer development plate, and this kind development board is the key content in the electrical type experimental teaching.But in field research, because existing single-chip experimental development plate lacks antistatic countermeasure, add the development board frequency of utilization high, the student operates lack of standardization, causes a large amount of development boards by electrostatic damage, has had a strong impact on experiment effect.And, single-chip experimental development plate of the prior art, all the integrated hardware resource few for ubiquity, and practical function is limited, is only suitable for the elementary introduction study of single-chip microcomputer and is not enough to support the defectives such as SCM Based more deep exploitation and use.
The utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of single-chip experimental development plate is provided, it is simple in structure, and is reasonable in design, and it is convenient to realize, integrated hardware resource is many, complete function, Scalable Performance is good, and reliability is high, result of use is good, applied range.
for solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of single-chip experimental development plate, it is characterized in that: comprise interface protection circuit, single-chip microcomputer and be the power circuit of each power circuit power supply in single-chip experimental development plate, and the crystal oscillating circuit that joins with described single-chip microcomputer, reset circuit, serial communication circuit, CAN bus communication circuit and usb communication circuit, the input end of described single-chip microcomputer is connected to input interface circuit, be connected to clock circuit on described input interface circuit, 4 * 4 matrix keyboards and infrared receiving circuit, the output terminal of described single-chip microcomputer is connected to output interface circuit, be connected to the LED Nixie tube drive circuit on described output interface circuit, LCD driving circuit and a plurality of LED lamp, the output terminal of described LED Nixie tube drive circuit is connected to the charactron interface circuit, be connected to the quaternity charactron on described charactron interface circuit, the output terminal of described LCD driving circuit is connected to the LCDs interface circuit, be connected to 12864 LCDs on described LCDs interface circuit, described input interface circuit and output interface circuit all join with described interface protection circuit.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: described single-chip microcomputer is chip STC89C52RC.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: described interface protection circuit mainly is made of the TVS diode.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: described serial communication circuit mainly is made of serial port communication chip MAX232.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: described CAN bus communication main circuit will be made of CAN bus transceiver chip PCA82C250.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: described usb communication main circuit will be made of USB control chip PDIUSBD12.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: described clock circuit mainly is made of clock chip DS1302.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: described input interface circuit and output interface circuit consist of by single round pin receptacle, and described charactron interface circuit and LCDs interface circuit consist of by double round pin receptacle.
Above-mentioned a kind of single-chip experimental development plate is characterized in that: the quantity of described LED lamp is 8.
The utility model compared with prior art has the following advantages:
1, the utility model has adopted modular design, and is simple in structure, reasonable in design, and it is convenient to realize.
2, the utlity model has interface protection circuit, strengthened the electrostatic-proof function of development board, make this single-chip experimental development plate can by electrostatic damage, not improve reliability in experimental teaching.
3, the integrated hardware resource of the utility model is many, and complete function makes the personnel that use this development board can either learn that the LED lamp shows, the LED charactron shows and LCD shows, can also learn serial communication, CAN bus communication and usb communication.
4, the utility model has designed input interface circuit and output interface circuit, remaining circuit all is connected with single-chip microcomputer by the mode that patches on these two circuit, be convenient to change different input circuits and output circuit, carry out expansion and the expansion study of this development board.
5, result of use of the present utility model is good, and applied range is not only applicable to teaching, is fit to the student to the introduction study of single-chip microcomputer, also is fit to numerous technical stafves author, take this development board as the basis, carries out deeper study exploitation.
In sum, the utility model is simple in structure, and is reasonable in design, and it is convenient to realize, integrated hardware resource is many, complete function, and Scalable Performance is good, and reliability is high, and result of use is good, applied range.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
Description of reference numerals:
1-single-chip microcomputer; 2-power circuit; 3-interface protection circuit;
4-crystal oscillating circuit; 5-reset circuit; 6-serial communication circuit;
7-CAN bus communication circuit; 8-usb communication circuit; 9-input interface circuit;
10-clock circuit; 11-4 * 4 matrix keyboards; 12-infrared receiving circuit;
13-output interface circuit; 14-LED Nixie tube drive circuit; 15-LCD driving circuit;
16-LED lamp; 17-charactron interface circuit; 18-quaternity charactron;
19-LCDs interface circuit; 20-12864 LCDs.
Embodiment
as shown in Figure 1, the utility model comprises interface protection circuit 3, single-chip microcomputer 1 and be the power circuit 2 of each power circuit power supply in single-chip experimental development plate, and the crystal oscillating circuit 4 that joins with described single-chip microcomputer 1, reset circuit 5, serial communication circuit 6, CAN bus communication circuit 7 and usb communication circuit 8, the input end of described single-chip microcomputer 1 is connected to input interface circuit 9, be connected to clock circuit 10 on described input interface circuit 9, 4 * 4 matrix keyboards 11 and infrared receiving circuit 12, the output terminal of described single-chip microcomputer 1 is connected to output interface circuit 13, be connected to LED Nixie tube drive circuit 14 on described output interface circuit 13, LCD driving circuit 15 and a plurality of LED lamp 16, the output terminal of described LED Nixie tube drive circuit 14 is connected to charactron interface circuit 17, be connected to quaternity charactron 18 on described charactron interface circuit 17, the output terminal of described LCD driving circuit 15 is connected to LCDs interface circuit 19, be connected to 12864 LCDs 20 on described LCDs interface circuit 19, described input interface circuit 9 and output interface circuit 13 all join with described interface protection circuit 3.
As shown in Figure 1, in the present embodiment, described single-chip microcomputer 1 is chip STC89C52RC.Described interface protection circuit 3 mainly is made of the TVS diode.Described serial communication circuit 6 mainly is made of serial port communication chip MAX232.Described CAN bus communication circuit 7 mainly is made of CAN bus transceiver chip PCA82C250.Described usb communication circuit 8 mainly is made of USB control chip PDIUSBD12.Described clock circuit 10 mainly is made of clock chip DS1302.
As shown in Figure 1, in the present embodiment, described input interface circuit 9 and output interface circuit 13 consist of by single round pin receptacle, and described charactron interface circuit 17 and LCDs interface circuit 19 consist of by double round pin receptacle.The quantity of described LED lamp 16 is 8.
When the utility model used, the experiment teacher can provide the development board external member to the student, and external member comprises needs the components and parts that weld on circuit diagram of the present utility model, the pcb board that produces and pcb board, namely consisted of the components and parts of each circuit in the utility model.After the student takes the development board external member, can first learning circuit figure, then according to the annexation in circuit diagram, components and parts are welded on pcb board, so just completed making of the present utility model.After completing, the student can pass through lightening LED lamp 16, tests core of the present utility model, and namely can single-chip microcomputer 1 work.When single-chip microcomputer 1 can work, the student just can be according to concrete course content, the program that oneself is finished downloads in single-chip microcomputer 1 by serial communication circuit 6, show according to the difference of quaternity charactron 18 and 12864 LCDs 20, the use of study 4 * 4 matrix keyboards 11, quaternity charactron 18 and 12864 LCDs 20, in addition, can also be in conjunction with external unit (as computing machine or other development board), the use of study serial communication circuit 6, CAN bus communication circuit 7 and usb communication circuit 8.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every any simple modification, change and equivalent structure of above embodiment being done according to the utility model technical spirit changes, and all still belongs in the protection domain of technical solutions of the utility model.
Claims (9)
1. single-chip experimental development plate, it is characterized in that: comprise interface protection circuit (3), single-chip microcomputer (1) and be the power circuit (2) of each power circuit power supply in single-chip experimental development plate, and the crystal oscillating circuit (4) that joins with described single-chip microcomputer (1), reset circuit (5), serial communication circuit (6), CAN bus communication circuit (7) and usb communication circuit (8), the input end of described single-chip microcomputer (1) is connected to input interface circuit (9), be connected to clock circuit (10) on described input interface circuit (9), 4 * 4 matrix keyboards (11) and infrared receiving circuit (12), the output terminal of described single-chip microcomputer (1) is connected to output interface circuit (13), be connected to LED Nixie tube drive circuit (14) on described output interface circuit (13), LCD driving circuit (15) and a plurality of LED lamp (16), the output terminal of described LED Nixie tube drive circuit (14) is connected to charactron interface circuit (17), be connected to quaternity charactron (18) on described charactron interface circuit (17), the output terminal of described LCD driving circuit (15) is connected to LCDs interface circuit (19), be connected to 12864 LCDs (20) on described LCDs interface circuit (19), described input interface circuit (9) and output interface circuit (13) all join with described interface protection circuit (3).
2. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: described single-chip microcomputer (1) is chip STC89C52RC.
3. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: described interface protection circuit (3) mainly is made of the TVS diode.
4. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: described serial communication circuit (6) mainly is made of serial port communication chip MAX232.
5. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: described CAN bus communication circuit (7) mainly is made of CAN bus transceiver chip PCA82C250.
6. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: described usb communication circuit (8) mainly is made of USB control chip PDIUSBD12.
7. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: described clock circuit (10) mainly is made of clock chip DS1302.
8. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: described input interface circuit (9) and output interface circuit (13) consist of by single round pin receptacle, and described charactron interface circuit (17) and LCDs interface circuit (19) consist of by double round pin receptacle.
9. according to a kind of single-chip experimental development plate claimed in claim 1, it is characterized in that: the quantity of described LED lamp (16) is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020942 CN203026023U (en) | 2013-01-15 | 2013-01-15 | Experimental development board of single chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020942 CN203026023U (en) | 2013-01-15 | 2013-01-15 | Experimental development board of single chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026023U true CN203026023U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320020942 Expired - Fee Related CN203026023U (en) | 2013-01-15 | 2013-01-15 | Experimental development board of single chip |
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| Country | Link |
|---|---|
| CN (1) | CN203026023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105894919A (en) * | 2015-01-06 | 2016-08-24 | 广东科学技术职业学院 | Singlechip-microcomputer-based multifunctional learning experiment development board |
| CN107301365A (en) * | 2017-04-17 | 2017-10-27 | 国网冀北电力有限公司技能培训中心 | A kind of equipment state liquid crystal display device based on Quick Response Code or bar code |
-
2013
- 2013-01-15 CN CN 201320020942 patent/CN203026023U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105894919A (en) * | 2015-01-06 | 2016-08-24 | 广东科学技术职业学院 | Singlechip-microcomputer-based multifunctional learning experiment development board |
| CN107301365A (en) * | 2017-04-17 | 2017-10-27 | 国网冀北电力有限公司技能培训中心 | A kind of equipment state liquid crystal display device based on Quick Response Code or bar code |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20140115 |