CN204480560U - A kind of SCM Based multifunctional learning experimental development board of multi - Google Patents
A kind of SCM Based multifunctional learning experimental development board of multi Download PDFInfo
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- CN204480560U CN204480560U CN201520005064.0U CN201520005064U CN204480560U CN 204480560 U CN204480560 U CN 204480560U CN 201520005064 U CN201520005064 U CN 201520005064U CN 204480560 U CN204480560 U CN 204480560U
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Abstract
The utility model relates to a kind of SCM Based multifunctional learning experimental development board of multi, size 10cm × 8cm, there is external power interface, USB and mini USB interface, download driving circuit, learn experiment module: 8 LED, 6 eight sections of common cathode charactrons, 4 Independent keys, LCD1602, hummer, infrared sensing head, temperature control sensing head, AT24C02 external memory chip, DS1302 real-time timepiece chips; Facilitate learner to the understanding of hardware circuit module, cultivate the thought of modularization programming, reach the ability of practice of tempering beginner, allow beginner's quick start and the destination of study to reach; To single-chip microcomputer product development personnel, analysis and the experiment of program debug in early stage and design feasibility can be carried out with it fast, save time of product development; It can meet experiment and the debugging that multiple function is carried out in each undergraduate course training university student study and amateur and researchist.
Description
Technical field
The utility model relates to comprehensive exploitation plate applied technical field, particularly relates to a kind of SCM Based multifunctional learning experimental development board of multi.
Background technology
At present, singlechip technology is full-fledged, little of remote-control toy, the large shadow having single chip application to electron trades such as office printer.For single-chip microcomputer electron trade, intelligent in important application, learn rapidly to grasp this gate technique of single-chip microcomputer for meeting numerous beginners, single-chip microcomputer comprehensive exploitation plate is on the market liked the bees rising in swarms, known single-chip microcomputer comprehensive exploitation plate structure is exactly by the basis of single-chip minimum system, add other various functional circuit module and download drive circuit module and build one for user's download, the platform of debugged program.On the one hand, in order to pursue greater functionality, it is often above comprehensive multiple study experiment circuit module to development board, although powerful, make the size of plate all at 10cm × more than 10cm, and some circuit module is not very practical, be not all use (as 4X4 matrix press-key module), so just cause the waste of plate, the rising of cost, carries inconvenience; In addition on the one hand, it all only considers that USB powers, and not reserved external power supply power supply interface, is not easy to the test of product development personnel to overall plan; Moreover a lot of development boards can not support mini USB interface, its versatility is declined.
Utility model content
Large in order to overcome existing comprehensive exploitation board size, cost increases, not Portable belt; Lack external power interface; The deficiency of mini USB interface can not be supported.The utility model provides a kind of comprehensive exploitation plate, this comprehensive exploitation plate not only removes the matrix press-key circuit of redundancy, reserve external power interface, USB can also be supported, mini USB interface, can directly use the data line of most non-i Phone/flat board to carry out the download of program, and the size of plate is no more than 10cm × 10cm.
For reaching above technical purpose, the utility model is achieved through the following technical solutions:
A kind of SCM Based multifunctional learning experimental development board of multi, by on the basis of single-chip minimum system, add other various functional circuit module and download drive circuit module and build one for user's download, the development board of debugged program, this development board size 10cm × 8cm, has USB, miniUSB two kinds of interfaces, there is external power interface, can several functions experiment and practice be carried out.
As further technical scheme of the present utility model: described development board has external power interface, USB and mini usb circuit, download driving circuit, singlechip minimum system circuit (comprising crystal oscillating circuit, key reset circuit, power light circuit), 8 LED lamp circuit, 6 eight sections common cathode charactron circuit, 4 Independent keys circuit, LCD1602 interface circuit, buzzer circuit, infrared sensing head circuit, temperature control sensing head circuit, AT24C02 external memory chip circuit, DS1302 real-time timepiece chip circuit; Wherein, the negative pole of 8 LED is connected with the P1 mouth of singlechip chip; 4 Independent keys are connected with P3.2, P3.3, P3.4, P3.5 of singlechip chip respectively; 8 data port of LCD1602 liquid crystal display circuit are connected with singlechip chip P0 mouth respectively; 6 eight sections of common cathode charactrons, eight section choosing ends are connected with P0 mouth respectively, and two position choosing ends are connected with P2.6, P2.7 of chip respectively; Wherein charactron can be independent mutually with LCD by short circuit cap, do not interfere with each other.Hummer connects singlechip chip P2.4, and infrared sensing head connects P3.2, and the CLK pin that temperature control sensing head connects P2.3, AT24C02 external memory chip is connected with P3.6, P3.7 pin of singlechip chip respectively with DETA pin; The SCLK pin of DS1302 real-time timepiece chip, IO pin, RST pin are connected with P2.0, P2.1, P2.2 pin of singlechip chip respectively.
As optimal technical scheme of the present utility model: " 3W " principle is followed in development board wiring, and namely parallel cabling, keeps 1mm between line-spacing; Power lead overstriking is minimum meets 0.6mm, the size 10cm × 8cm of whole plate; Ensure the reliability of signal, integrality, also reduces the area shared by wiring, reaches the object of the size Control of plate within 10cm × 10cm.
The first, circuit side connector face: the utility model comprises circuit board, singlechip minimum system circuit, study experiential function modular circuit, level conversion downloads driving chip circuit.The above circuit is all arranged on circuit boards.
Described minimum system comprises singlechip chip and external I/O mouth, key circuit, crystal oscillating circuit, power indicating circuit; Described study experiential function modular circuit, comprises 8 LED lamp circuit, 4 Independent keys circuit, 6 eight sections common cathode charactron circuit, active buzzer circuit, infrared sensor circuit, temperature control sensor circuit, real-time clock, exterior storage, LCD1602 liquid crystal display connecting circuit and interface, external power interfaces; Described level conversion downloads driving chip circuit, comprises and downloads driving chip circuit, USB interface, mini USB interface, make test integrality more, also improve the versatility of product.
Described level translation downloads driving circuit, external power interface is connected with described study experiential function modular circuit and described single-chip minimum system respectively.Be interconnected between described study experiential function modular circuit and described singlechip chip.Described study experiential function module realizes separate by short circuit cap or contact pin line, does not interfere with each other.
As prioritization scheme of the present utility model: during layout, element is placed and is pursued symmetry, and the circuit module element completing identical function is put together, and mimic channel is put on circuit edges of boards, away from chip, avoids interference; Filter capacitor is near the element of institute's filtering, and the direction that surface mount elements is placed is pursued consistent, effectively can not only save space like this, can also ensure the quality of reflow ovens, reduce artificial repair welding.
Compared with prior art, the beneficial effects of the utility model are: the single-chip microcomputer comprehensive exploitation plate of this multifunctional learning experiment, the multi-function single-chip computer comprehensive exploitation plate of 10cm × 8cm, USB can be passed through, mini USB line stabilization reliably can burning program, complete the programing function of described study experiential function module and can normally run, also can work as and solely connect external power supply working procedure.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model;
Fig. 2 is silk-screen layer layout of the present utility model;
In mark shown in figure: 1-USB interface; 2-miniUSB interface; 3-power supply touch-switch; 4-external power interface; 5-LCD1602 module; 6-common cathode charactron; 7-74LS573 chip; 8-temperature control sensing head; 9-infrared sensing head; 10-hummer; 11-DS1302 real-time timepiece chip; 12-AT24C02_EEPROM external memory chip; 13-Independent keys; 14-LED lamp; 15-reset key; 16-downloads driving chip CH340G; The singlechip chip of 17-8 position DIP40.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, in DXP or AD chain of circuits figure software, draw schematic diagram; Comprise external power interface, USB and mini usb circuit, download driving circuit, singlechip minimum system circuit (comprising crystal oscillating circuit, key reset circuit, power light circuit), 8 LED lamp circuit, 6 eight sections common cathode charactron circuit, 4 Independent keys circuit, LCD1602 interface circuit, buzzer circuit, infrared sensing head circuit, temperature control sensing head circuit, AT24C02 external memory chip circuit, DS1302 real-time timepiece chip circuit.
Concrete connection mode is: the negative pole of 8 LED is connected with the P1 mouth of singlechip chip; 4 Independent keys are connected with P3.2, P3.3, P3.4, P3.5 of singlechip chip respectively; 8 data port of LCD1602 liquid crystal display circuit are connected with singlechip chip P0 mouth respectively; 6 eight sections of common cathode charactrons, eight section choosing ends are connected with P0 mouth respectively, and two position choosing ends are connected with P2.6, P2.7 of chip respectively; Wherein charactron can be independent mutually with LCD by short circuit cap, complementary interference.Hummer connects singlechip chip P2.4, and infrared sensing head connects P3.2, and the CLK pin that temperature control sensing head connects P2.3, AT24C02 external memory chip is connected with P3.6, P3.7 pin of singlechip chip respectively with DETA pin; The SCLK pin of DS1302 real-time timepiece chip, IO pin, RST pin are connected with P2.0, P2.1, P2.2 pin of singlechip chip respectively.
As Fig. 2, in shown silk-screen layer layout, USB interface (1) and mini USB interface (2), be used for being connected with host computer, power simultaneously to development board; Power on during power supply touch-switch (3) burning program and the master switch of power supply; External power interface (4) can be connected with+5V power supply powers separately to development board; LCD1602 module (5) does display with regulating brightness by potentiometer; Eight sections of common cathode charactrons (6) are used for doing display use, and 74LS573 chip (7) drives charactron; Can thermometric by temperature control sensing head (8); Can infrared remote control by infrared sensing head (9), realize intelligent action; Hummer (10); DS1302 real-time timepiece chip (11); AT24C02_EEPROM external memory chip (12); 4 Independent keys (13); 8 LED (14); Reset key (15); Download driving chip CH340G (16); The singlechip chip (17) of 8 DIP40.
In implementing Fig. 1 ~ the 2 Suo Shi, the program that host computer is write produces binary file, by being connected with USB interface (1) or mini USB interface (2), level is again through downloading the conversion of driving chip CH340G (16), just the binary file of host computer can be burnt in singlechip chip and go, simultaneously two kinds of USB interface have the effect of power supply.Then can according to the program of writing, remove control LCD1602 module (5), eight sections of common cathode charactrons (6), temperature control sensing head (8), infrared sensing head (9), hummer (10), DS1302 real-time timepiece chip (11), AT24C02_EEPROM external memory chip (12), 4 Independent keys (13), 8 these circuit modules of LED (14).Simultaneously when burning chip after program, also can be connected with+5V power supply by external power interface (4) and to power separately to development board, test products scheme.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a SCM Based multifunctional learning experimental development board of multi, by on the basis of single-chip minimum system, add other various functional circuit module and download drive circuit module and build one for user's download, the development board of debugged program, it is characterized in that: development board size 10cm × 8cm, and be provided with USB and mini USB two kinds of interfaces, have external power interface, can several functions experiment and practice be carried out; There is external power interface, USB and mini usb circuit, download driving circuit, singlechip minimum system circuit, 8 LED lamp circuit, 6 eight sections common cathode charactron circuit, 4 Independent keys circuit, LCD1602 interface circuit, buzzer circuit, infrared sensing head circuit, temperature control sensing head circuit, AT24C02 external memory chip circuit, DS1302 real-time timepiece chip circuit; The negative pole of 8 described LED is connected with the P1 mouth of singlechip chip; 4 Independent keys are connected with P3.2, P3.3, P3.4, P3.5 pin of singlechip chip respectively; 8 data port of LCD1602 liquid crystal display circuit are connected with singlechip chip P0 mouth respectively; 6 eight sections of common cathode charactrons, eight section choosing ends are connected with P0 mouth respectively, and two position choosing ends are connected with P2.6, P2.7 of chip respectively; Hummer connects singlechip chip P2.4, and infrared sensing head connects P3.2, and the CLK pin that temperature control sensing head connects P2.3, AT24C02 external memory chip is connected with P3.6, P3.7 pin of singlechip chip respectively with DETA pin; The SCLK pin of DS1302 real-time timepiece chip, IO pin, RST pin are connected with P2.0, P2.1, P2.2 pin of singlechip chip respectively.
2. the SCM Based multifunctional learning experimental development board of multi of one according to claim 1, is characterized in that, development board design follows " 3W " principle, parallel cabling, and line-spacing is 1mm; Power lead overstriking is minimum is 0.6mm, the size 10cm × 8cm of whole plate.
3. the singlechip minimum system circuit of a kind of SCM Based multifunctional learning experimental development board of multi according to claim 1, is characterized in that: this circuit comprises crystal oscillating circuit, key reset circuit and power light circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005064.0U CN204480560U (en) | 2015-01-06 | 2015-01-06 | A kind of SCM Based multifunctional learning experimental development board of multi |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005064.0U CN204480560U (en) | 2015-01-06 | 2015-01-06 | A kind of SCM Based multifunctional learning experimental development board of multi |
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| CN204480560U true CN204480560U (en) | 2015-07-15 |
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| CN201520005064.0U Expired - Fee Related CN204480560U (en) | 2015-01-06 | 2015-01-06 | A kind of SCM Based multifunctional learning experimental development board of multi |
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Cited By (3)
| 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 |
| CN106981242A (en) * | 2016-01-19 | 2017-07-25 | 李彬 | A kind of hand-held single-chip microcomputer training platform |
| CN112445159A (en) * | 2019-09-01 | 2021-03-05 | 杨跃龙 | Free bridging standard interface system for singlechip development board |
-
2015
- 2015-01-06 CN CN201520005064.0U patent/CN204480560U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN106981242A (en) * | 2016-01-19 | 2017-07-25 | 李彬 | A kind of hand-held single-chip microcomputer training platform |
| CN112445159A (en) * | 2019-09-01 | 2021-03-05 | 杨跃龙 | Free bridging standard interface system for singlechip development board |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20170106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |