CN202159445U - Singlechip experimental board - Google Patents
Singlechip experimental board Download PDFInfo
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- CN202159445U CN202159445U CN2011202939073U CN201120293907U CN202159445U CN 202159445 U CN202159445 U CN 202159445U CN 2011202939073 U CN2011202939073 U CN 2011202939073U CN 201120293907 U CN201120293907 U CN 201120293907U CN 202159445 U CN202159445 U CN 202159445U
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- 238000002474 experimental method Methods 0.000 claims description 19
- 238000004088 simulation Methods 0.000 abstract description 7
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- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
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Abstract
A singlechip experimental board can directly write (download) software programs from the serial port of a PC (Personable Computer) through an ISP port and debug and simulate the hardware and software of a singlechip development system. The singlechip experimental board adopts an AT89S52 singlechip as a main control chip to set a singlechip minimum system; a synchronous serial ISP bus interface is additionally arranged to directly write (download) the singlechip application software program in the PC to a program memory of a singlechipp; a locking singlechip socket is used to facilitate replacing a written singlechip chip; a certain amount of externally expanded switches serve as the system input equipment; and a certain amount of externally expanded nixie tubes and LEDs serve as the system output equipment. The effect and influence on the control system from the external variation are simulated through the on/off of the switches, the nixie tubes or the LEDs are used for outputting results to simulate the running state of the control system, so as to debug the hardware circuit and the software program to serve the software and hardware simulation functions.
Description
Technical field
The utility model relates to a kind of a kind of device that uses when learning Fundamentals of Mono-Chip Computers and exploitation single-chip microcomputer application product; Especially specially emulator and program burn writing device just can be downloaded singlechip application programs, the single chip computer experiment plate of debugging software program and hardware circuit.
Background technology
Single-chip microcomputer is widely used in fields such as Industry Control and household electrical appliance, is one of the industry science type student electronic product developing instrument that must learn and grasp.One of characteristics of single-chip microcomputer are exactly that Real Time Control Function is strong, but structurally, single-chip microcomputer has only the core control part of computing machine; Both there be not input equipment and output device; Also do not have corresponding software programs, so singlechip can not move, can not be certainly being about to software program programming (download) to program storage; Be that singlechip does not have development ability, the study of ultimate principle and the exploitation of application product all must be by the singlechip emulator and the SCM program fever writes of special use.At present, known thinking and method of carrying out the exploitation of single-chip microcomputer application product is: the design hardware circuit, the design software program arrives program storage with software program programming (download).What programming (download) software program used is the specific program fever writes, and whether the hardware circuit of inspection, checking design and software program correctly used is emulator.The existing general Fundamentals of Mono-Chip Computers teaching and the instrument of single-chip microcomputer application product exploitation are exactly the one-chip machine simulation experimental box that this specific program fever writes combines with emulator.But this one-chip machine simulation experimental box costs an arm and a leg, general study or developer, and particularly the student in the school does not have, and causes theory and practice, theory and the disconnection of using, the exploitation of the effect that interferes with one's studies and application product.
Summary of the invention
Must combine ability burning application program with the emulator of special use in order to overcome existing single chip computer experiment case; The deficiency of debugging scm software program and hardware circuit; The utility model provides a kind of ability direct and PC serial communication burning (download) software program, and can debug the single chip computer experiment plate of application software and hardware circuit.
The utility model solves the technical scheme that its technical matters adopted: as main control chip, build a single-chip minimum system with the AT89S52 single-chip microcomputer; In the control system of single chip computer AT 89S52, having increased a synchronous serial peripheral bus interface is the ISP EBI; Through this interface with the direct programming of the singlechip application programs in the PC (download) in the program storage of single-chip microcomputer; The single chip computer experiment plate powers on and can move this program, needn't carry out the download of application program again through special-purpose cd-rom recorder.On the single chip computer experiment plate, use a tight single-chip microcomputer socket with lock, be used to change singlechip chip, carry out the exploitation of single-chip microcomputer application product; In the control system of single chip computer AT 89S52, extend out the input equipment of the switch of some as system; Extend out charactron and the light emitting diode of some output device again as system; The extraneous role and influence that change control system of break-make simulation through switch; Export the running status that the result comes analog control system through charactron or light emitting diode, and, realize soft, simulation hardware function with this debug hardware circuit and software program.
Minimum control system with extend out equipment and the ISP EBI all is connected on the socket; Connect through the plug line; So not only make in the single chip computer experiment plate system Input/Output Device can independent assortment, control relation be adjustable, flexibly, debugging software program easily; And single-chip minimum system also can connect single chip computer experiment plate external device through the plug line, and the application system that the single chip computer experiment plate is outer is carried out emulation, exploitation.
The beneficial effect of the utility model is; Can be through the ISP mouth directly from PC serial ports programming (download) software program; And can be with charactron on the single chip computer experiment plate or light emitting diode debugging software program, connect the external hardware circuit and to the hardware circuit and the software program emulation of outside development system through the socket on the single chip computer experiment plate; Single chip computer experiment plate cost is low.
Description of drawings
Fig. 1 is the utility model theory diagram;
Fig. 2 is the electrical schematic diagram of an embodiment of the single chip computer experiment plate that provides of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Referring to Fig. 1, the utility model (comprises AT89S52 single-chip microcomputer and tight single-chip microcomputer socket, reset circuit and a clock circuit with lock by single chip computer AT 89S52 minimum system.), the ISP software program is downloaded mouth, the button input switch, and light emitting diode, charactron and driving circuit, modules such as outlet are formed.Fig. 2 is the electrical schematic diagram of an embodiment of the utility model; This embodiment is a single chip computer experiment plate with basic function; Wherein, switch S 1, capacitor C 1, resistance R 18 compositions power on and manual reset circuit, and capacitor C 2, C3, crystal oscillator Y1 form the clock peripheral circuit; Above-mentioned reset circuit and clock peripheral circuit constitute single-chip minimum system with AT89S52, satisfy single-chip microcomputer operate as normal hardware pacing items.Socket J1 is that the ISP software program is downloaded mouthful, and the download line through other outfit links to each other the programming (download) of realization software program with the serial ports of PC.K switch 1, K2 are as input equipment, in order to simulate the extraneous influence that changes single-chip computer control system.Socket J5, light emitting diode D8～D15 form one tunnel output; Charactron D2～D7, socket J4, J6, resistance R 10～R17, triode Q1～Q6 form the second tunnel output, and two-way output simulation single-chip computer control system running status is used for the emulation to software program.U2 (74LS240), resistance R 1～R8, socket J2 are as the driving circuit of output circuit.Socket SO1, double-point double-throw switch SO2, resistance R 9, light emitting diode D1 are the power supply and the power supply display circuits of single-chip computer control system.Power supply socket when socket J7～J10 can be used as hardware circuit emulation to external world.The P2 mouth of single chip computer AT 89S52 is connected with socket J3; Output circuit is connected with socket J4～J6 and output driving circuit is connected with socket J2; So not only can be convenient, flexible pass through plug line be connected input, output circuit; Realize the Different software procedure simulation, and the socket J3 of single-chip minimum system also can connect the application system outside the single chip computer experiment plate system, realize the hardware and software emulation of application development system to external world.
An above-mentioned embodiment who is merely the utility model is not limited in structure content given in the utility model accompanying drawing.For a person skilled in the art, in the utility model technical know-how scope, can input and output device and interface be carried out various variations and change.Everyly download mouth through ISP and carry out the download of software program, Input/Output Device as any structure change of software and hardware artificial debugging, be equal to the protection domain (such as change of the quantity of input switch, output diode, output charactron and the Input/Output Device of other type etc. etc.) that replacement and improvement etc. all belong to the utility model patent.
Claims (4)
1. a single chip computer experiment plate comprises single-chip minimum system, the single-chip microcomputer socket; EBI; System input device, system output device is characterized in that: EBI is a synchronous serial ISP interface; System input device is a keyswitch, and system output device is charactron and light emitting diode.
2. single chip computer experiment plate according to claim 1 is characterized in that: what the single-chip microcomputer socket used is a tight single-chip microcomputer socket with lock.
3. single chip computer experiment plate according to claim 1 is characterized in that: single-chip minimum system, input equipment, output device all are connected with socket, connect through plug.
4. single chip computer experiment plate according to claim 3 is characterized in that: the socket of single-chip minimum system can connect external device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202939073U CN202159445U (en) | 2011-07-24 | 2011-07-24 | Singlechip experimental board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202939073U CN202159445U (en) | 2011-07-24 | 2011-07-24 | Singlechip experimental board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202159445U true CN202159445U (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202939073U Expired - Fee Related CN202159445U (en) | 2011-07-24 | 2011-07-24 | Singlechip experimental board |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880788A (en) * | 2012-08-17 | 2013-01-16 | 重庆诺柏恩自动化技术有限公司 | Data processing method of intelligent potentiometer |
| CN103902332A (en) * | 2014-04-16 | 2014-07-02 | 河南工业职业技术学院 | Device for downloading programs of single-chip microcomputer and debugging method |
-
2011
- 2011-07-24 CN CN2011202939073U patent/CN202159445U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880788A (en) * | 2012-08-17 | 2013-01-16 | 重庆诺柏恩自动化技术有限公司 | Data processing method of intelligent potentiometer |
| CN102880788B (en) * | 2012-08-17 | 2016-04-06 | 重庆诺柏恩自动化技术有限公司 | A kind of data processing method of intelligent potentiometer |
| CN103902332A (en) * | 2014-04-16 | 2014-07-02 | 河南工业职业技术学院 | Device for downloading programs of single-chip microcomputer and debugging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 233100 east suburb of Anhui, Bengbu, Anhui Science and Technology University Patentee after: Liu Chunli Address before: 233100 School of engineering, Anhui Science and Technology University, Anhui, Fengyang Patentee before: Liu Chunli |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20120724 |