CN204695645U - EDA Instructional Development experimental box - Google Patents
EDA Instructional Development experimental box Download PDFInfo
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- CN204695645U CN204695645U CN201520102675.7U CN201520102675U CN204695645U CN 204695645 U CN204695645 U CN 204695645U CN 201520102675 U CN201520102675 U CN 201520102675U CN 204695645 U CN204695645 U CN 204695645U
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Abstract
The utility model discloses a kind of EDA Instructional Development experimental box, this EDA Instructional Development experimental box comprises main control chip and expansion module, and described expansion module comprises liquid crystal touch screen, motor module, video module, interface module, audio-frequency module, traffic lights module, ADC/DAC module, memory module, temperature sensor module, infrared transceiver module, clock source module, signal source module, display module; Described main control chip comprises some I/O mouths, and described main control chip is communicated to connect by described I/O mouth and described expansion module, and sends the operation that control signal controls described expansion module; By above-mentioned experimental box, can meet each colleges and universities specially, undergraduate, postgraduate the exploitation of EDA, SOPC education experiment, by drill the practice of expansion module each in experimental box, raising student starts the ability of practice and innovative experiment ability.
Description
Technical field
The utility model relates to teaching equipment field, particularly relates to a kind of EDA Instructional Development experimental box.
Background technology
EDA (Electronic Design Automation) electric design automation is a key character of integrated circuit (IC) design.Institution of higher learning have from the superficial to the deep offered the EDA correlated curriculums such as digital integrated circuit, field programmable gate function, hardware description language, Modern DSP Technology which Brings, embedded Nios processor principle and characteristics for the student of the specialties such as microelectronics, electronic engineering, communication engineering, computing machine, because the current module comprised for the Teaching Experiment Box of EDA correlated curriculum is comprehensive not, thus causing many college students to have knowwhy in vain, practical competence and innovation ability are but generally short of.Therefore, start the ability of practice and ability of creative in order to what progressively improve student, be badly in need of a set of can be applicable to the various teaching stage and the experimental box can carrying out Making Innovation Experiments to coordinate theory teaching.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of EDA Instructional Development experimental box, is intended to solve the module not comprehensively problem comprised for the Teaching Experiment Box of EDA correlated curriculum.
For achieving the above object, the utility model provides a kind of EDA Instructional Development experimental box, for electronic design automation, SOPC (System on a Programmable Chip) programmable system on chip education experiment is developed, experimental box comprises main control chip and expansion module, described main control chip comprises some I/O mouths, described expansion module comprises the liquid crystal touch screen connected with corresponding I/O port communications, motor module, video module, interface module, audio-frequency module, traffic lights module, ADC/DAC module, memory module, temperature sensor module, infrared transceiver module, clock source module, signal source module and display module, described main control chip sends the operation that control signal controls described expansion module.
Preferably, described video module comprises video input module, Video Output Modules, the input end of described video input module is connected with camera, the output terminal of described video input module is connected with the input end of Video Output Modules, and the output terminal of described Video Output Modules is connected with liquid crystal touch screen; Described video input module is under the control of described main control chip, the video data of camera collection is imported and carries out coding and export Video Output Modules to, described Video Output Modules is under the control of described main control chip, and the video data transmitted by described video input module carries out decoding and exports liquid crystal touch screen to and shows.
Preferably, described interface module comprises VGA (Video Graphics Array) Video Graphics Array interface, serial line interface, Ethernet card interface, USB interface, SD card interface, PS2 interface and CF card interface, wherein, one end of described USB interface is connected with the output terminal of described Video Output Modules, the other end of described USB interface is connected with external-connection displayer, for the video data of described camera collection being passed to external-connection displayer display; Described serial line interface is used for the communication apparatus communication of main control chip with external RS-232 agreement to be connected; Described Ethernet card interface is used for the communication apparatus communication of main control chip with external ICP/IP protocol to be connected; Described USB interface, for connecting described main control chip and circumscribed USB storer, reads the data of circumscribed USB storer for main control chip; Described SD card interface, for connecting described main control chip and external SD card, reads the data in external SD card for main control chip; Described CF card interface, for connecting described main control chip and external CF card, reads the data in external CF card for main control chip; Described PS2 interface is for connecting main control chip and external access of mouse, keyboard.
Preferably, described clock source module comprises crystal oscillator, and described crystal oscillator is connected with described main control chip, and described crystal oscillator, for generation of the clock signal of different frequency, is passed to main control chip, for described main control chip provides clock signal of system.
Preferably, described audio-frequency module comprises microphone and earphone interface, and described microphone is used for sound signal to be converted into electric signal transmission to main control chip process, and described earphone interface frames connecting with headphone, for playing audio signal.
Preferably, described motor module comprises direct current generator unit and stepper motor unit, described direct current generator unit comprises Hall element and direct current generator, described Hall element is connected with described main control chip, the control end of described stepper motor is connected with described main control chip, described Hall element is for measuring the rotating speed of described direct current generator, and described main control chip reads the rotating speed of described direct current generator by described Hall element, and according to described rotational speed regulation the modulating frequency of PWM; The control end of described stepper motor unit is connected with described main control chip, and described main control chip is for controlling the rotating forward of described stepper motor, reversion and rotational angle.
Preferably, described traffic lights module comprises the LED group of simulation traffic lights, described LED group comprises four groups, and all corresponding with described control chip I/O mouth connects, described control chip exports control information by I/O mouth, controls four groups of LED groups and lights and extinguishing according to the traffic lights rule preset.
Preferably, described signal source module is used for providing sine wave, square wave, triangle to involve sawtooth wave simulating signal, and the frequency range of described simulating signal is 50Hz-80KHz, and amplitude is 0-3.3V.
Preferably, described ADC/DAC module comprises ADC unit and DAC unit, described ADC unit comprises for gathering simulating signal and described simulating signal being converted to digital signal transfers to main control chip, and the digital signal that described DAC unit is used for main control chip exports is converted to simulating signal and exports.
Preferably, described temperature sensor module is used for the temperature value in the Real-time Collection external world, and the temperature value of collection is passed to main control chip processes, and real time temperature data are sent to liquid crystal touch screen and show by main control chip.
Preferably, described infrared transceiver module comprises infrared emission unit and infrared receiver, the control end of described infrared emission unit is connected with described main control chip, described main control chip controls infrared emission unit and launches infrared signal, and described infrared receiver processes for receiving described infrared signal and being passed to described main control chip.
Preferably, described display module comprises LED display unit and numeral method unit, the I/O mouth that the input end of described LED display unit is corresponding with described main control chip connects, the I/O mouth that the input end of described numeral method unit is corresponding with described main control chip connects, described LED display unit and described numeral method unit Display of Chinese characters, character or figure under the control signal of described main control chip.
Preferably, described memory module comprises EEPROM unit, and described EEPROM unit is communicated to connect, for storing the calibration data of liquid crystal touch screen by IIC interface and described main control chip.
A kind of EDA Instructional Development experimental box provided by the utility model, this EDA Instructional Development experimental box comprises main control chip and expansion module, and described expansion module comprises liquid crystal touch screen, motor module, video module, interface module, audio-frequency module, traffic lights module, ADC/DAC module, memory module, temperature sensor module, infrared transceiver module, clock source module, signal source module, display module; Described main control chip comprises some I/O mouths, and described main control chip is communicated to connect by described I/O mouth and described expansion module, and sends the operation that control signal controls described expansion module; By above-mentioned EDA Instructional Development experimental box, can meet each colleges and universities specially, undergraduate, postgraduate the exploitation of EDA, SOPC education experiment, by drill the practice of expansion module each in experimental box, raising student starts the ability of practice and innovative experiment ability.
Accompanying drawing explanation
Fig. 1 is the functional module connection diagram of the utility model EDA Instructional Development experimental box;
Fig. 2 is the high-level schematic functional block diagram of the utility model video module;
Fig. 3 is the high-level schematic functional block diagram of the utility model interface module;
Fig. 4 is the structural representation of the utility model USB interface;
Fig. 5 is the high-level schematic functional block diagram of the utility model motor module;
Fig. 6 is the high-level schematic functional block diagram of the utility model ADC/DAC module;
Fig. 7 is the high-level schematic functional block diagram of the utility model infrared transceiver module;
Fig. 8 is the high-level schematic functional block diagram of the utility model display module.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
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.
The utility model provides a kind of EDA Instructional Development experimental box.
With reference to Fig. 1, Fig. 1 is the functional module connection diagram of the utility model EDA Instructional Development experimental box, in the present embodiment, a kind of EDA Instructional Development experimental box is provided, for electronic design automation, programmable system on chip SOPC education experiment is developed, described experimental box comprises main control chip 100 and expansion module, described expansion module comprises liquid crystal touch screen 110, motor module 130, video module 140, interface module 120, audio-frequency module 150, traffic lights module 160, ADC/DAC module 170, memory module 180, temperature sensor module 190, infrared transceiver module 200, clock source module 210, signal source module 220, display module 230, described main control chip 100 comprises some I/O mouths, and described main control chip 100 is communicated to connect by described I/O mouth and described expansion module, and sends the operation that control signal controls described expansion module.
Particularly, this EDA Instructional Development experimental box also comprises power supply module, this power supply module comprises three core supply sockets, civil power and three core supply sockets are connected by three core power leads, introduced by 220V civil power, open the power switch of experimental box, experimental box is started working, and the working power needed for each module by power supply module 220V civil power converted in main control chip 100 and expansion module, the direct current signals such as such as 12V ,-12V, 5V, 3.3V, 2.5V, 1.2V.This main control chip 100 is EP2C35F672C8 chip preferably, and this chip has the features such as low-power consumption, high-performance, low price, and the quantity of its internal storage unit is also more, and data processing speed is very fast.Each module in expansion module is connected with the I/O port communications of main control chip 100, thus main control chip 100 controls each module work and to go forward side by side row data communication, and carries out data display by liquid crystal touch screen 110.
In the present embodiment, this liquid crystal touch screen 110 preferably 640 × 480 super graphics lattice lcd touch-screens 110.
This EDA Instructional Development experimental box also has jtag interface and AS DLL (dynamic link library), and jtag interface and AS interface are all connected to main control chip 100, connects PC, can be cured configuration to the FPGA of main control chip 100 inside by USB-Blaster downloading wire.
For realizing the communication connection of EDA Instructional Development experimental box and other external equipments, also be configured with various conventional connecting line: as power lead, netting twine (leading directly to), straight-through serial interface cable (pin-hole), USB cable (flat mouth is to square opening), voice-frequency cable, USB-Blaster downloading wire, winding displacement etc., by arranging well on the housing of experimental box, above-mentioned each wire rod is positioned in well, conveniently takes.
This main control chip 100 has the storage unit such as SRAM, SDRAM, Nor Flash, NAND Flash, series arrangement chip, completes the storage of data when communicating to expansion module.
By above-mentioned EDA Instructional Development experimental box, can meet each colleges and universities specially, undergraduate, postgraduate the exploitation of EDA, SOPC education experiment, by drill the practice of expansion module each in experimental box, raising student starts the ability of practice and innovative experiment ability.
Further, reference Fig. 2, Fig. 2 is the high-level schematic functional block diagram of the utility model video module; Described video module 140 comprises video input module 141, Video Output Modules 142, the input end of described video input module 141 is connected with camera, the output terminal of described video input module 141 is connected with the input end of Video Output Modules 142, and the output terminal of described Video Output Modules 142 is connected with liquid crystal touch screen 110; Described video input module 141 is under the control of described main control chip 100, the video data of camera collection is imported and carries out coding and export Video Output Modules 142 to, described Video Output Modules 142 is under the control of described main control chip 100, and being carried out decoding and export liquid crystal touch screen 110 to by the video data that described video input module 141 transmits shows.
This video input module 141 preferably adopts TVP5150 module, and Video Output Modules 142 preferably adopts ADV7171 module; Carry out quantification treatment by video module 140 to the image gathered, and utilize this chip can carry out conversion output to the standard of video, by this video module 140, the video data of camera collection can be exchanged into NTSC, pal mode exports.
Further, reference Fig. 3, Fig. 3 is the high-level schematic functional block diagram of the utility model interface module; In the present embodiment, described interface module 120 comprises VGA (Video Graphics Array) Video Graphics Array interface, serial line interface 122, Ethernet card interface 123, usb 1 24, SD card interface 125, PS2 interface 126 and CF card interface 127, wherein, one end of described USB interface 121 is connected with the output terminal of described Video Output Modules 142, the other end of described USB interface 121 is connected with external-connection displayer, for the video data of described camera collection being passed to external-connection displayer display; Described serial line interface 122 is for being connected the communication apparatus communication of main control chip 100 with external RS-232 agreement; Described Ethernet card interface 123 is for being connected the communication apparatus communication of main control chip 100 with external ICP/IP protocol; Described usb 1 24, for connecting described main control chip 100 and circumscribed USB storer, reads the data of circumscribed USB storer for main control chip 100; Described SD card interface 125, for connecting described main control chip 100 and external SD card, reads the data in external SD card for main control chip 100; Described CF card interface 127, for connecting described main control chip 100 and external CF card, reads the data in external CF card for main control chip 100; Described PS2 interface 126 is for connecting main control chip 100 and external access of mouse, keyboard.
Particularly, reference Fig. 4, Fig. 4 is the structural representation of the utility model USB interface; In the present embodiment, the VGA_R pin of this USB interface 121 connects the I/O mouth of main control chip 100 correspondence, VGA_G pin connects the I/O mouth of main control chip 100 correspondence, and VGA_B pin connects the I/O mouth of main control chip 100 correspondence, and these three pins are used for the colouring information of transmitting image; HSYNC pin connects the I/O mouth of main control chip 100 correspondence, and VSYNC pin connects the I/O mouth of main control chip 100 correspondence, and this two pins is used for the ranks synchronizing signal of transmitting image, makes image transmitting undistorted.This experimental box and external-connection displayer can be connected by USB interface 121, export the video data of video module 140 to external-connection displayer.
By Ethernet card interface 123 connected with network cable, thus host computer is connected with main control chip 100 and realizes communicating, main control chip 100 is configured data, then host computer can browse the webpage of main control chip 100 setting by Ethernet card interface 123, and this Ethernet card interface 123 preferably adopts RTL8019AS module; Usb 1 24 adopts the PDIUSBD12 chip of Philips company, connects experimental box and PC by USB cable, can realize by this usb 1 24 function that experimental box reads the data of PC; SD card interface 125 connects main control chip 100 and SD card, makes master control chip 100 carry out read-write operation to SD card easily; PS2 interface 126 comprises keyboard interface, mouse interface, is connected respectively by keyboard with mouse with main control chip 100, thus the information inputted by keyboard or mouse can show on liquid crystal touch screen 110; The coordinate figure etc. that mouse interface produces also can be shown in liquid crystal touch screen 110.
Further, described clock source module 210 comprises crystal oscillator, and described crystal oscillator is connected with described main control chip 100, and described crystal oscillator, for generation of the clock signal of different frequency, is passed to main control chip 100, for described main control chip 100 provides clock signal of system.
Particularly, this crystal oscillator can adopt frequency to be the real-time clock input that the crystal oscillator of 50MHz realizes system.This clock source module 210 also can adopt the crystal oscillator of different frequency, produces as multiple clock signals such as 24MHz, 12MHz, 6MHz, 1MHz, 100KHz, 10KHz, 1KHz, 100Hz, 10Hz and 1Hz.
Further, described audio-frequency module 150 comprises microphone and earphone interface, and described microphone is used for that sound signal is converted into electric signal transmission and processes to main control chip 100, and described earphone interface frames connecting with headphone, for playing audio signal.
This audio-frequency module 150 preferably adopts audio frequency CODEC module, particularly, in this experimental box, is also provided with volume knob, for regulating the size of sound signal.
Further, reference Fig. 5, Fig. 5 is the high-level schematic functional block diagram of the utility model motor module; Described motor module 130 comprises direct current generator unit 131 and stepper motor unit 132, described direct current generator unit 131 comprises Hall element and direct current generator, described Hall element is connected with described main control chip 100, the control end of described stepper motor is connected with described main control chip 100, described Hall element is for measuring the rotating speed of described direct current generator, described main control chip 100 reads the rotating speed of described direct current generator by described Hall element, and according to described rotational speed regulation the modulating frequency of PWM; The control end of described stepper motor unit 132 is connected with described main control chip 100, and described main control chip 100 is for controlling the rotating forward of described stepper motor, reversion and rotational angle.
Above-mentioned direct current generator preferably adopts+12V direct current supply, the rotating speed of this direct current generator regulates by potentiometer, also the pwm signal exported by main control chip 100 regulates, measured by the rotating speed of supporting Hall element to direct current generator, to judge the accuracy that DC motor speed regulates simultaneously.Stepper motor unit 132 preferably adopts 2 phase formula stepper motors, and its minimum anglec of rotation is 18 degree.
Further, described traffic lights module 160 comprises the LED group of simulation traffic lights, described LED group comprises four groups, and all corresponding with described control chip I/O mouth connects, described control chip exports control information by I/O mouth, controls four groups of LED groups and lights and extinguishing according to the traffic lights rule preset.
Imported in main control chip 100 by the control program of AS DLL (dynamic link library) by the traffic lights rule preset, lighting and extinguishing of crossroad access lamp can be simulated.
Further, described signal source module 220 involves sawtooth wave simulating signal for providing sine wave, square wave, triangle, and the frequency range of described simulating signal is 50Hz-80KHz, and amplitude is 0-3.3V.
The simulating signal that signal source module 220 exports can be adjustable in frequency and amplitude range according to the actual requirements, and each simulating signal switches by toggle switch.
Further, reference Fig. 6, Fig. 6 is the high-level schematic functional block diagram of the utility model ADC/DAC module; Described ADC/DAC module 170 comprises ADC unit 171 and DAC unit 172, described ADC unit 171 comprises for gathering simulating signal and described simulating signal being converted to digital signal transfers to main control chip 100, and described DAC unit 172 is converted to simulating signal for the digital signal exported by main control chip 100 and exports.
Particularly, this ADC unit 171 comprises serial ADC unit and parallel 8 ADC unit, and this DAC unit 172 comprises Serial DAC unit and parallel 8 DAC unit; Realize the collection to simulating signal by ADC/DAC module 170, and by main control chip 100 and ADC/DAC module 170, the digital signal after process and simulating signal are presented on liquid crystal touch screen 110 or on external oscillograph.
In the present embodiment, the simulating signal of collection is divided into internal signal sources and outside source, and internal signal sources is for produce sine wave, square wave, triangular wave and sawtooth signal by signal source module 220; Outside source is the various signals produced by external lug outer signal generator.
In the present embodiment, these parallel 8 ADC unit preferably adopt TLC5540 module, and these parallel 8 DAC unit preferably adopt TLC5602 module.
Further, the temperature value of collection for the temperature value in the Real-time Collection external world, and is passed to main control chip 100 and processes by described temperature sensor module 190, and real time temperature data are sent to liquid crystal touch screen 110 and show by main control chip 100.
This temperature sensor module 190 is preferably DS18B20 module.
Further, reference Fig. 7, Fig. 7 is the high-level schematic functional block diagram of the utility model infrared transceiver module; Described infrared transceiver module 200 comprises infrared emission unit 201 and infrared receiver 202, the control end of described infrared emission unit 201 is connected with described main control chip 100, described main control chip 100 controls infrared emission unit 201 and launches infrared signal, and described infrared receiver 202 processes for receiving described infrared signal and being passed to described main control chip 100.
Infrared transceiver module 200 by experiment on case, can realize the wireless short-distance communication between two experimental boxs.
Further, reference Fig. 8, Fig. 8 is the high-level schematic functional block diagram of the utility model display module; Described display module 230 comprises LED display unit 231 and numeral method unit 232, the I/O mouth that the input end of described LED display unit 231 is corresponding with described main control chip 100 connects, the I/O mouth that the input end of described numeral method unit 232 is corresponding with described main control chip 100 connects, described LED display unit 231 and described numeral method unit 232 Display of Chinese characters, character or figure under the control signal of described main control chip 100.
In the present embodiment, this LED display unit 231 preferably adopts 16 × 16 lattice display units, the display of Chinese character, character and simple graph can be met, this numeral method unit 232 preferably adopts 8 dynamic seven segment digital tubes, by the control of main control chip 100, the output display of kinds of characters and numeral can be realized.
Further, described memory module 180 comprises EEPROM unit, and described EEPROM unit is communicated to connect by IIC interface and described main control chip 100, for storing the calibration data of liquid crystal touch screen 110.
Connect IIC interface and main control chip 100 by iic bus, the data writing and reading to EEPROM module can be realized.
Further, described main control chip 100 also comprises self-defined expansion interface, and described self-defined expansion interface is used for providing 3.3V, 5V voltage with for subsequent use.
By self-defined expansion interface, can customize other functional units, realize other standby functions, as self-defined input module switch and keyboard input module etc., by coordinating the mutual use of other modules, other demands of education experiment can be met.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (13)
1. an EDA Instructional Development experimental box, education experiment for electronic design automation, programmable system on chip SOPC is developed, it is characterized in that, described experimental box comprises main control chip and expansion module, described main control chip comprises some I/O mouths, and described expansion module comprises the liquid crystal touch screen, motor module, video module, interface module, audio-frequency module, traffic lights module, ADC/DAC module, memory module, temperature sensor module, infrared transceiver module, clock source module, signal source module and the display module that connect with corresponding I/O port communications; Described main control chip sends the operation that control signal controls described expansion module.
2. EDA Instructional Development experimental box as claimed in claim 1, it is characterized in that, described video module comprises video input module, Video Output Modules, the input end of described video input module is connected with camera, the output terminal of described video input module is connected with the input end of Video Output Modules, and the output terminal of described Video Output Modules is connected with liquid crystal touch screen; Described video input module is under the control of described main control chip, the video data of camera collection is imported and carries out coding and export Video Output Modules to, described Video Output Modules is under the control of described main control chip, and the video data transmitted by described video input module carries out decoding and exports liquid crystal touch screen to and shows.
3. EDA Instructional Development experimental box as claimed in claim 2, it is characterized in that, described interface module comprises USB interface, serial line interface, Ethernet card interface, USB interface, SD card interface, PS2 interface and CF card interface, wherein, one end of described USB interface is connected with the output terminal of described Video Output Modules, the other end of described USB interface is connected with external-connection displayer, for the video data of described camera collection being passed to external-connection displayer display; Described serial line interface is used for the communication apparatus communication of main control chip with external RS-232 agreement to be connected; Described Ethernet card interface is used for the communication apparatus communication of main control chip with external ICP/IP protocol to be connected; Described USB interface, for connecting described main control chip and circumscribed USB storer, reads the data of circumscribed USB storer for main control chip; Described SD card interface, for connecting described main control chip and external SD card, reads the data in external SD card for main control chip; Described CF card interface, for connecting described main control chip and external CF card, reads the data in external CF card for main control chip; Described PS2 interface is for connecting main control chip and external access of mouse, keyboard.
4. EDA Instructional Development experimental box as claimed in claim 1, it is characterized in that, described clock source module comprises crystal oscillator, described crystal oscillator is connected with described main control chip, described crystal oscillator is for generation of the clock signal of different frequency, be passed to main control chip, for described main control chip provides clock signal of system.
5. EDA Instructional Development experimental box as claimed in claim 1, it is characterized in that, described audio-frequency module comprises microphone and earphone interface, and described microphone is used for sound signal to be converted into electric signal transmission to main control chip process, described earphone interface frames connecting with headphone, for playing audio signal.
6. EDA Instructional Development experimental box as claimed in claim 1, it is characterized in that, described motor module comprises direct current generator unit and stepper motor unit, described direct current generator unit comprises Hall element and direct current generator, described Hall element is connected with described main control chip, the control end of described stepper motor is connected with described main control chip, described Hall element is for measuring the rotating speed of described direct current generator, described main control chip reads the rotating speed of described direct current generator by described Hall element, and according to the modulating frequency of described rotational speed regulation PWM; The control end of described stepper motor unit is connected with described main control chip, and described main control chip is for controlling the rotating forward of described stepper motor, reversion and rotational angle.
7. EDA Instructional Development experimental box as claimed in claim 1, it is characterized in that, described traffic lights module comprises the LED group of simulation traffic lights, described LED group comprises four groups, and all corresponding with described control chip I/O mouth connects, described control chip exports control information by I/O mouth, controls four groups of LED groups and lights and extinguishing according to the traffic lights rule preset.
8. EDA Instructional Development experimental box as claimed in claim 1, it is characterized in that, described signal source module is used for providing sine wave, square wave, triangle to involve sawtooth wave simulating signal, and the frequency range of described simulating signal is 50Hz-80KHz, and amplitude is 0-3.3V.
9. experimental box as claimed in claim 1, it is characterized in that, described ADC/DAC module comprises ADC unit and DAC unit, described ADC unit comprises for gathering simulating signal and described simulating signal being converted to digital signal transfers to main control chip, and the digital signal that described DAC unit is used for main control chip exports is converted to simulating signal and exports.
10. EDA Instructional Development experimental box as claimed in claim 1, it is characterized in that, described temperature sensor module is used for the temperature value in the Real-time Collection external world, and the temperature value of collection is passed to main control chip processes, and real time temperature data are sent to liquid crystal touch screen and show by main control chip.
11. EDA Instructional Development experimental boxs as claimed in claim 1, it is characterized in that, described infrared transceiver module comprises infrared emission unit and infrared receiver, the control end of described infrared emission unit is connected with described main control chip, described main control chip controls infrared emission unit and launches infrared signal, and described infrared receiver processes for receiving described infrared signal and being passed to described main control chip.
12. EDA Instructional Development experimental boxs as claimed in claim 1, it is characterized in that, described display module comprises LED display unit and numeral method unit, the I/O mouth that the input end of described LED display unit is corresponding with described main control chip connects, the I/O mouth that the input end of described numeral method unit is corresponding with described main control chip connects, described LED display unit and described numeral method unit Display of Chinese characters, character or figure under the control signal of described main control chip.
13. EDA Instructional Development experimental boxs as claimed in claim 1, it is characterized in that, described memory module comprises EEPROM unit, and described EEPROM unit is communicated to connect, for storing the calibration data of liquid crystal touch screen by IIC interface and described main control chip.
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| CN201520102675.7U CN204695645U (en) | 2015-02-12 | 2015-02-12 | EDA Instructional Development experimental box |
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| CN201520102675.7U CN204695645U (en) | 2015-02-12 | 2015-02-12 | EDA Instructional Development experimental box |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732848A (en) * | 2015-02-12 | 2015-06-24 | 北京百科融创教学仪器设备有限公司 | Experimental box for EDA teaching development |
| CN107067907A (en) * | 2016-03-09 | 2017-08-18 | 南京邮电大学 | A kind of real time remote restructural online experiment chamber system |
| CN110796939A (en) * | 2019-12-17 | 2020-02-14 | 上海立爱教育科技有限公司 | Programming learning development board with unified extended interface |
-
2015
- 2015-02-12 CN CN201520102675.7U patent/CN204695645U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732848A (en) * | 2015-02-12 | 2015-06-24 | 北京百科融创教学仪器设备有限公司 | Experimental box for EDA teaching development |
| CN104732848B (en) * | 2015-02-12 | 2018-02-13 | 北京百科融创教学仪器设备有限公司 | EDA Instructional Development experimental boxs |
| CN107067907A (en) * | 2016-03-09 | 2017-08-18 | 南京邮电大学 | A kind of real time remote restructural online experiment chamber system |
| CN107067907B (en) * | 2016-03-09 | 2019-08-16 | 南京邮电大学 | A kind of restructural online experiment chamber system of real time remote |
| CN110796939A (en) * | 2019-12-17 | 2020-02-14 | 上海立爱教育科技有限公司 | Programming learning development board with unified extended interface |
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