CN104778887A - Comprehensive development experimental box for modular single-chip microcomputer and application thereof - Google Patents
Comprehensive development experimental box for modular single-chip microcomputer and application thereof Download PDFInfo
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Abstract
The invention relates to a comprehensive development experimental box for a modular single-chip microcomputer and an application thereof. According to the comprehensive development experimental box, protruding elastic pieces are arranged in grooves of a primary circuit board, the edges of auxiliary circuit boards are provided with gaps corresponding to the protruding elastic pieces, the auxiliary circuit boards are embedded in the grooves, and the protruding elastic pieces are clamped into the gaps to be connected with a metal sheet. The comprehensive development experimental box overcomes the defect that because a traditional comprehensive development experimental box for a single-chip microcomputer is small, when installed, circuit boards are difficult to align and effectively solves the problem that a plug and a socket are prone to damage due to repeated plugging and unplugging.
Description
Technical field
The present invention relates to a kind of modularization single-chip microcomputer comprehensive exploitation experimental box and application thereof, belong to the technical field of instruments used for education.
Background technology
Single-chip microcomputer is a kind of integrated circuit (IC) chip, is to adopt very large scale integration technology that electronic components (may also comprise display driver circuit, pulse-width modulation circuit, analog multiplexer, A/D converter etc.) such as having the central processor CPU of data-handling capacity, random access memory ram, read only memory ROM, multiple I/O port, interrupt system and timer/timer is integrated into the little and perfect microcomputer system of that one piece of silicon chip is formed.Nowadays single-chip microcomputer has penetrated into the every field of our life, plays irreplaceable effect, so become extremely important for the study of single-chip microcomputer relevant knowledge and grasp, and to do single chip computer experiment be a part particularly important in single-chip learning.
For singlechip experimental box in the past, most employing integrated design, in an experiment, experimenter needs to carry out multiple operation on a monoblock large circuit board, need external a large amount of wire, while easy wiring error, operation is also comparatively complicated, is unfavorable for that experimenter understands the control communication between the working method of single-chip microcomputer and modules; And because the I/O port of single-chip microcomputer is limited, the experiment content that same circuit board can relate to is very limited; In addition, it is also inconvenient time traditional singlechip experimental box needs to demonstrate in addition.For the above-mentioned deficiency of scm test case, existing solution is that single-chip microcomputer is carried out modularization, is dismountablely arranged in the total module of single-chip microcomputer, thus improves the dirigibility that singlechip experimental box uses; But, the scm test case of this kind of design is adopt banana plug or ox horn plug mostly, model calling total with single-chip microcomputer, inconvenient when connecting, the plug of plug and socket easily damage repeatedly, and one-chip computer module is all one piece of little circuit board, want the plug on little circuit board to be inserted on another block plank, be difficult to aim at.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of modularization single-chip microcomputer comprehensive exploitation experimental box, this chamber by arranging protruding shell fragment in the groove of female circuit board, the edge of sub-circuit board is provided with the breach corresponding to protruding shell fragment, sub-circuit board embeds and is arranged in described groove, and protruding shell fragment snaps in described breach and is connected with described sheet metal; Not only overcome difficult defect of aiming at when the little circuit board of conventional one-piece machine comprehensive exploitation experimental box is installed, and effectively prevent the plug of plug repeatedly and socket holds flimsy problem.
The present invention also provides a kind of by the application of above-mentioned modularization single-chip microcomputer comprehensive exploitation experimental box.
Technical scheme of the present invention is as follows:
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box, comprises casing, female circuit board and sub-circuit board; Described female circuit board is provided with multiple groove corresponding to sub-circuit board size, and the sidewall of described groove is provided with protruding shell fragment, is connected between described protruding shell fragment by network copper film on female circuit board; The edge of sub-circuit board is provided with the breach corresponding to protruding shell fragment, is provided with the sheet metal be connected with network copper film in breach; Sub-circuit board embeds and is arranged in described groove, and protruding shell fragment snaps in described breach and is connected with described sheet metal; Described female circuit board and sub-circuit board are arranged in casing.
Network copper film is herein equivalent to bus, each experiment module is made dismountable sub-circuit board, each sub-circuit board free plug can change position on female circuit board, each protruding shell fragment of female circuit board is interconnected by network copper film, without the need to external bus, eliminates the numerous and diverse of connecting line, not only production cost is low, and be beneficial to raising experiment effect, convenient operation, be easy to operator and understand.
Preferred according to the present invention, described protruding shell fragment is the protruding shell fragment of copper, and the protruding shell fragment of described copper connects between two.Copper electric conductivity is good, toughness, can ensure that the Contact of female circuit board and sub-circuit board is tight like this, not virtual connection; Avoid bringing unnecessary trouble to user; Connect between two and ensure that any two protruding shell fragments can realize separately being communicated with, improve convenience and the dirigibility of experimental box use.
Preferred according to the present invention, the number of described groove is 4.So not only make the space of female circuit board obtain adequately and reasonably to utilize, but also the requirement that user does various experiment can be met, in test again need not plug sub-circuit board.
Preferred according to the present invention, described sub-circuit board comprises core daughter board (MCU), I/O Parallel expansion daughter board (PIO), storer and real-time clock to be expanded daughter board (Memory & RTC), matrix keyboard and LED numeral method and expands daughter board (Key & LED); Described core daughter board is provided with the power-switching circuit that CPU seat, crystal oscillator socket and output voltage are+5V ,-5V ,+12V; Described I/O Parallel expansion daughter board (PIO) comprises the parallel I/O port of 74LS373 expansion, 74LS164 and 74LS164 transformation from serial to parallel I/O port, PCF8574I2C turn parallel I/O port, the parallel I/O port of 8255 expansion, 8 toggle switch I/O signal input circuits, 8 LED I/O signal export, 3 × 4 red greenish-yellow three-color LED traffic signal lamp indicating circuits.The advantage herein designed is, core daughter board can connect Multiple Type single-chip microcomputer, and multiple crystal oscillator, also can connect emulator and debug; + 5V ,-5V ,+12V voltage can meet needs when testing outside casing.
Preferred further according to the present invention, described storer and real-time clock are expanded daughter board (Memory & RTC) and are comprised storer (Memory) and real-time clock (RTC); Shown storer (Memory) comprises RAM 62256, program storage EEPROM W27C512, serial E2PROM 24C02, SD card interface, Contact Type Ic Card interface; Described storer and real-time clock are expanded daughter board (Memory & RTC) and are comprised the DS12887 chip of parallel interface and the PCF8563 of serial line interface.
Preferred further according to the present invention, described matrix keyboard and LED numeral method expand that daughter board (Key & LED) comprises static LED, dynamic keyboard scans and LED display circuit; Described static LED comprises 74LS164 and two panels CD4511, and described 74LS164 and two panels CD4511 forms two binary-coded decimal display; Dynamic keyboard scanning and LED display circuit comprise HD7279,6 × 4 ranks keyboards and 6 eight sections of LED charactrons.
Preferred according to the present invention, described sub-circuit board also comprises LCD liquid crystal display and LED dot matrix and expands that daughter board (AD & DA) is expanded in daughter board (LCD), modulus and digital-to-analog conversion, daughter board (Sensor) expanded by sensor, driver expands daughter board (Driver), daughter board (Wave Generation) expanded by communication extension daughter board (Communication), audio extension daughter board (Audio), waveform generator and IC-card and radio-frequency card Card Reader daughter board (Card Reader); Described LCD liquid crystal display and LED dot matrix are expanded daughter board (LCD) and are comprised LCD for Character Type 1602 display module, are with dot matrix type LCD 12864 display module of Hanzi font library and 16 ×× 16LED lattice modules; Described modulus and digital-to-analog conversion expansion daughter board (AD & DA) provide Parallel ADC 0809 and serial AD 7,810 two A/D convertor circuits, walk abreast DAC0832 and serial TLC5615, two DA change-over circuits and 0 ~ 5V adjustable potential generative circuit; Described sensor expansion daughter board (Sensor) comprises infrared tube, infrared thermal release electric, supersonic sounding, DS18B20 thermometric, HS1101 measuring moisture, DHT11 thermometric humidity sensor; It is L298N direct current generator and stepper motor driving circuit that described driver expansion daughter board (Driver) comprises model, and model is that L298N direct current generator and stepper motor directly configure, or external; Described driving circuit comprises relay circuit and LM386N-1 audio power amplifier circuit, and described outputting circuit for relay load capacity is 10A; Described communication extension daughter board (Communication) comprises 485 buses, PT2272 wireless remote control, nRF2401 radio communication, SJA1000T CAN, CH375USB Device and USB Host, W5100 ethernet interface; Described audio extension daughter board (Audio) has ISD1760 audio record circuit, VS1003MP3 playing circuit; Described waveform generator expansion daughter board (Wave Generation) has ICL8038 square wave, triangular wave, sine wave signal circuit for generating, frequency range is 20 ~ 20KHz, pulse centered by NE555 and sawtooth wave generative circuit, pulse high level and low level, the rising edge of sawtooth wave and negative edge are all Independent adjustable, frequency range is 20 ~ 20KHz, duty cycle range is 1% ~ 99%, all wave form output amplitudes are adjustable (0 ~ 5V), triangular wave, sawtooth wave pedestals is adjustable (-2.5V ~ 0V); Described IC-card and radio-frequency card Card Reader daughter board (Card Reader) can read and write Contact Type Ic Card, non-contact high-frequency RFID ISO4443A/B card.
Described motor-drive circuit driving force strong (maximum operating voltage can reach 46V, and output current is large, and instantaneous peak current can reach 3A, and continuous firing electric current is 2A, rated power 25W).
Preferred according to the present invention, described female circuit board is provided with the anti-circnit NOT of power supply, fuse and expansion interface.The anti-circnit NOT of power supply, fuse ensure Electrical Safety; Described expansion interface is for expanding the more sub-circuit boards of connection and being connected other outer attached device.
Preferred according to the present invention, be provided with foam groove and accessory slot in described casing.The advantage herein designed is, can by experiment with less than sub-circuit board temporarily leave in foam groove, so both can Appropriate application case intracorporeal space, make casing become smaller and more exquisite, be easy to carry, and the groove of foam also can play anti-effect of falling; Described accessory slot can be used for depositing Du Pont's line, short circuit cap, can the various device such as chip of plug.
Preferred further according to the present invention, described female circuit board is by gemel connection in experimental box body, and female circuit board is provided with handle; Described foam groove is arranged on the below of described female circuit board.Female circuit board freely can lift in casing, is exactly above-mentioned groove, can takes out the sub-circuit board required for experiment very easily, and can make full use of cabinet space under female circuit board, convenient and practical.
Above-mentioned modularization single-chip microcomputer comprehensive exploitation experimental box is applied to scm test, comprises step as follows:
A, turning off experimental box power supply, being inserted in groove by testing the sub-circuit board used;
B, with Du Pont's line by emulator respectively with exploitation PC and experimental box be connected;
C, exploitation PC on run Keil uVision2 development environment, set up engineering and engineering attribute be set; Write experimental arrangement, programs expect result, compiling, link, generate " .hex " file;
D, with program burn writing device by " .hex " file download of generating in singlechip controller;
E, singlechip controller working procedure;
Whether F, observation experiment phenomenon are in order expected results, if do not meet, analyze reason of makeing mistakes, repeat step C-E, the expected results until experimental phenomena is in order.
Preferred according to the present invention, described singlechip controller is AT89S51 singlechip controller.
Advantage of the present invention is:
1, modularization single-chip microcomputer comprehensive exploitation experimental box of the present invention, and have employed the modularization framework of very convenient operation, cover the various related experiment in the middle of single-chip microcomputer teaching material; Be adapted at undergraduate course, universities carry out single chip computer experiment course, Course Exercise, to use in the middle of scientific research and development;
2, modularization single-chip microcomputer comprehensive exploitation experimental box of the present invention, the edge of sub-circuit board is provided with the breach corresponding to shell fragment, sub-circuit board is embedded be arranged in described groove and realize protruding shell fragment and snap in described breach and be connected with described sheet metal, not only overcome difficult defect of aiming at when the little circuit board of conventional one-piece machine comprehensive exploitation experimental box is installed, and effectively prevent the plug of plug repeatedly and socket holds flimsy problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of female circuit board of the present invention;
Fig. 2 is the casing vertical view of modularization single-chip microcomputer comprehensive exploitation experimental box of the present invention;
Wherein, 1, female circuit board; 2, sub-circuit board; 3, bus; 4, foam groove; 5, groove; 6, accessory slot.
Embodiment
Below in conjunction with embodiment and Figure of description, the present invention is described in detail, but is not limited thereto.
Embodiment 1,
As shown in Figure 1-2.
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box, comprises casing, female circuit board and sub-circuit board; Described female circuit board is provided with 4 grooves corresponding to sub-circuit board size, the sidewall of described groove is provided with the protruding shell fragment of copper, is connected between described protruding shell fragment by network copper film on female circuit board, and the protruding shell fragment of described copper connects between two; The edge of sub-circuit board is provided with the breach corresponding to shell fragment, is provided with the sheet metal be connected with network copper film in breach; Sub-circuit board embeds and is arranged in described groove, and protruding shell fragment snaps in described breach and is connected with described sheet metal; Described female circuit board and sub-circuit board are arranged in casing.
Network copper film is herein equivalent to bus, each experiment module is made dismountable sub-circuit board, each sub-circuit board free plug can change position on female circuit board, each protruding shell fragment of female circuit board is interconnected by network copper film, without the need to external bus, eliminates the numerous and diverse of connecting line, not only production cost is low, and be beneficial to raising experiment effect, convenient operation, be easy to operator and understand; Copper electric conductivity is good, toughness, can ensure that the Contact of female circuit board and sub-circuit board is tight like this, not virtual connection; Avoid bringing unnecessary trouble to user; Connect between two and ensure that any two protruding shell fragments can realize separately being communicated with, improve convenience and the dirigibility of experimental box use;
Described sub-circuit board comprises core daughter board (MCU), I/O Parallel expansion daughter board (PIO), storer and real-time clock are expanded daughter board (Memory & RTC), matrix keyboard and LED numeral method and expanded daughter board (Key & LED); Described core daughter board is provided with the power-switching circuit that CPU seat, crystal oscillator socket and output voltage are+5V ,-5V ,+12V; Described I/O Parallel expansion daughter board (PIO) comprises the parallel I/O port of 74LS373 expansion, 74LS164 and 74LS164 transformation from serial to parallel I/O port, PCF8574I2C turn parallel I/O port, the parallel I/O port of 8255 expansion, 8 toggle switch I/O signal input circuits, 8 LED I/O signal export, 3 × 4 red greenish-yellow three-color LED traffic signal lamp indicating circuits.The advantage herein designed is, core daughter board can connect Multiple Type single-chip microcomputer, and multiple crystal oscillator, also can connect emulator and debug; + 5V ,-5V ,+12V voltage can meet needs when testing outside casing.
Described storer and real-time clock are expanded daughter board (Memory & RTC) and are comprised storer (Memory) and real-time clock (RTC); Shown storer (Memory) comprises RAM 62256, program storage EEPROM W27C512, serial E2PROM 24C02, SD card interface, Contact Type Ic Card interface; Described storer and real-time clock are expanded daughter board (Memory & RTC) and are comprised the DS12887 chip of parallel interface and the PCF8563 of serial line interface.
Described matrix keyboard and LED numeral method expand that daughter board (Key & LED) comprises static LED, dynamic keyboard scans and LED display circuit; Described static LED comprises 74LS164 and two panels CD4511, and described 74LS164 and two panels CD4511 forms two binary-coded decimal display; Dynamic keyboard scanning and LED display circuit comprise HD7279,6 × 4 ranks keyboards and 6 eight sections of LED charactrons.
Described sub-circuit board also comprises LCD liquid crystal display and LED dot matrix and expands that daughter board (AD & DA) is expanded in daughter board (LCD), modulus and digital-to-analog conversion, daughter board (Sensor) expanded by sensor, driver expands daughter board (Driver), daughter board (Wave Generation) expanded by communication extension daughter board (Communication), audio extension daughter board (Audio), waveform generator and IC-card and radio-frequency card Card Reader daughter board (Card Reader); Described LCD liquid crystal display and LED dot matrix are expanded daughter board (LCD) and are comprised LCD for Character Type 1602 display module, are with dot matrix type LCD 12864 display module of Hanzi font library and 16 × 16LED lattice module; Described modulus and digital-to-analog conversion expansion daughter board (AD & DA) provide Parallel ADC 0809 and serial AD 7,810 two A/D convertor circuits, walk abreast DAC0832 and serial TLC5615, two DA change-over circuits and 0 ~ 5V adjustable potential generative circuit; Described sensor expansion daughter board (Sensor) comprises infrared tube, infrared thermal release electric, supersonic sounding, 18B20 thermometric, HS1101 measuring moisture, DHT11 thermometric humidity sensor; It is L298N direct current generator and stepper motor driving circuit that described driver expansion daughter board (Driver) comprises model, and model is that L298N direct current generator and stepper motor directly configure, or external; Described driving circuit comprises relay circuit and LM386N-1 audio power amplifier circuit, and described outputting circuit for relay load capacity is 10A; Described communication extension daughter board (Communication) comprises 485 buses, PT2272 wireless remote control, nRF2401 radio communication, SJA1000T CAN, CH375USB Device and USB Host, W5100 ethernet interface; Described audio extension daughter board (Audio) has ISD1760 audio record circuit, VS1003MP3 playing circuit; Described waveform generator expansion daughter board (Wave Generation) has ICL8038 square wave, triangular wave, sine wave signal circuit for generating, frequency range is 20 ~ 20KHz, pulse centered by NE555 and sawtooth wave generative circuit, pulse high level and low level, the rising edge of sawtooth wave and negative edge are all Independent adjustable, frequency range is 20 ~ 20KHz, duty cycle range is 1% ~ 99%, all wave form output amplitudes are adjustable (0 ~ 5V), triangular wave, sawtooth wave pedestals is adjustable (-2.5V ~ 0V); Described IC-card and radio-frequency card Card Reader daughter board (Card Reader) can read and write Contact Type Ic Card, non-contact high-frequency RFID ISO4443A/B card.
Described motor-drive circuit driving force strong (maximum operating voltage can reach 46V, and output current is large, and instantaneous peak current can reach 3A, and continuous firing electric current is 2A, rated power 25W).
Embodiment 2,
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box as described in Example 1, difference is: described female circuit board is provided with the anti-circnit NOT of power supply, fuse and expansion interface.The anti-circnit NOT of power supply, fuse ensure Electrical Safety; Described expansion interface is for expanding the more sub-circuit boards of connection and being connected other outer attached device.
Embodiment 3,
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box as described in Example 1, difference is: be provided with foam groove and accessory slot in described casing.The advantage herein designed is, can by experiment with less than sub-circuit board temporarily leave in foam groove, so both can Appropriate application case intracorporeal space, make casing become smaller and more exquisite, be easy to carry, and the groove of foam also can play anti-effect of falling; Described accessory slot can be used for depositing Du Pont's line, short circuit cap, can the various device such as chip of plug.
Embodiment 4,
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box as described in Example 3, difference is: described female circuit board is by gemel connection in experimental box body, and female circuit board is provided with handle; Described foam groove is arranged on the below of described female circuit board.Female circuit board freely can lift in casing, is exactly above-mentioned groove, can takes out the sub-circuit board required for experiment very easily, and can make full use of cabinet space under female circuit board, convenient and practical.
Embodiment 5,
Modularization single-chip microcomputer comprehensive exploitation experimental box described in embodiment 1-4 is applied to scm test, comprises step as follows:
A, turn off experimental box power supply; Core daughter board (MCU), I/O Parallel expansion daughter board (PIO), matrix keyboard and LED numeral method are expanded daughter board (Key & LED) be inserted in groove.
B, with Du Pont's line by emulator respectively with exploitation PC and experimental box be connected; Under emulator powering-off state, the artificial head of emulator is inserted on the CPU socket of core daughter board (MCU); The communication port of emulator with exploitation PC is connected, opens the power supply of experimental box and emulator;
C, exploitation PC on run Keil uVision2 development environment, set up engineering PIO164_c.uV2, CPU is AT89S51, comprises startup file STARTUP.A51; Create source program PIO_164.c and join engineering PIO_164_c.uV2, and engineering PIO_164_c.uV2 attribute is set, its crystal oscillator frequency is set to 11.0592MHz, select to export executable file, DEBUG way selection hardware DEBUG, and select " WAVE V seriesMCS51Driver " emulator wherein; Structure (Build) engineering PIO_164_c.uV2; Wrongly if programmed to modify, till structure is correct; By the experimental arrangement write, compiling, link, generates " .hex " file;
D, with program burn writing device by " .hex " file download of generating to AT89S51 singlechip controller;
E, singlechip controller working procedure;
The on off state of F, change DIP switch SP1M3 (PIO), whether the decimal number observing the numerical value of static numeral method corresponding with DIP switch is consistent; If inconsistent, analyze reason of makeing mistakes, continue the step of repetition C-E step, until result is correct.
Claims (10)
1. a modularization single-chip microcomputer comprehensive exploitation experimental box, comprises casing, female circuit board and sub-circuit board; It is characterized in that, described female circuit board is provided with multiple groove corresponding to sub-circuit board size, and the sidewall of described groove is provided with protruding shell fragment, is connected between described protruding shell fragment by network copper film on female circuit board; The edge of sub-circuit board is provided with the breach corresponding to protruding shell fragment, is provided with the sheet metal be connected with network copper film in breach; Sub-circuit board embeds and is arranged in described groove, and protruding shell fragment snaps in described breach and is connected with described sheet metal; Described female circuit board and sub-circuit board are arranged in casing.
2. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, is characterized in that: described protruding shell fragment is the protruding shell fragment of copper, and the protruding shell fragment of described copper connects between two.
3. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, is characterized in that: the number of described groove is 4.
4. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, is characterized in that: described sub-circuit board comprises core daughter board, I/O Parallel expansion daughter board, storer and real-time clock are expanded daughter board, matrix keyboard and LED numeral method and expanded daughter board; Described core daughter board is provided with the power-switching circuit that CPU seat, crystal oscillator socket and output voltage are+5V ,-5V ,+12V; Described I/O Parallel expansion daughter board comprises the parallel I/O port of 74LS373 expansion, 74LS164 and 74LS164 transformation from serial to parallel I/O port, PCF8574I2C turn parallel I/O port, the parallel I/O port of 8255 expansion, 8 toggle switch I/O signal input circuits, 8 LED I/O signal export, 3 × 4 red greenish-yellow three-color LED traffic signal lamp indicating circuits.
5. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 4, is characterized in that: described storer and real-time clock are expanded daughter board and comprised storer and real-time clock; Shown storer comprises RAM 62256, program storage EEPROMW27C512, serial E2PROM 24C02, SD card interface, Contact Type Ic Card interface; Described storer and real-time clock are expanded daughter board and are comprised the DS12887 chip of parallel interface and the PCF8563 of serial line interface.
6. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 4, is characterized in that: described matrix keyboard and LED numeral method expand that daughter board comprises static LED, dynamic keyboard scans and LED display circuit; Described static LED comprises 74LS164 and two panels CD4511, and described 74LS164 and two panels CD4511 forms two binary-coded decimal display; Dynamic keyboard scanning and LED display circuit comprise HD7279,6 × 4 ranks keyboards and 6 eight sections of LED charactrons.
7. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, is characterized in that: described sub-circuit board also comprises LCD liquid crystal display and LED dot matrix and expands that daughter board is expanded in daughter board, modulus and digital-to-analog conversion, daughter board expanded by sensor, driver expands daughter board, daughter board expanded by communication extension daughter board, audio extension daughter board, waveform generator and IC-card and radio-frequency card Card Reader daughter board; Described LCD liquid crystal display and LED dot matrix are expanded daughter board and are comprised LCD for Character Type 1602 display module, are with dot matrix type LCD 12864 display module of Hanzi font library and 16 × 16LED lattice module; Described modulus and digital-to-analog conversion expansion daughter board comprise Parallel ADC 0809 and serial AD 7,810 two A/D convertor circuits, parallel DAC0832 and serial TLC5615, two DA change-over circuits and 0 ~ 5V adjustable potential generative circuit; Described sensor expansion daughter board comprises infrared tube, infrared thermal release electric, supersonic sounding, 18B20 thermometric, HS1101 measuring moisture, DHT11 thermometric humidity sensor; It is L298N direct current generator and stepper motor driving circuit that described driver expansion daughter board comprises model, and model is that L298N direct current generator and stepper motor directly configure, or external; Described driving circuit comprises relay circuit and LM386N-1 audio power amplifier circuit, and described outputting circuit for relay load capacity is 10A; Described communication extension daughter board comprises 485 buses, PT2272 wireless remote control, nRF2401 radio communication, SJA1000T CAN, CH375USB Device and USB Host, W5100 ethernet interface; Described audio extension daughter board (Audio) comprises ISD1760 audio record circuit, VS1003MP3 playing circuit; Described waveform generator expansion daughter board has ICL8038 square wave, triangular wave, sine wave signal circuit for generating, frequency range is 20 ~ 20KHz, pulse centered by NE555 and sawtooth wave generative circuit, pulse high level and low level, the rising edge of sawtooth wave and negative edge are all Independent adjustable, frequency range is 20 ~ 20KHz, duty cycle range is 1% ~ 99%, all wave form output amplitudes are adjustable, amplitude range is 0 ~ 5V, triangular wave, sawtooth wave pedestals is adjustable, and level range is-2.5V ~ 0V; Described IC-card and radio-frequency card Card Reader daughter board can read and write Contact Type Ic Card, non-contact high-frequency RFID ISO4443A/B card.
8. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, is characterized in that: described female circuit board is provided with in casing described in the anti-circnit NOT of power supply, fuse and expansion interface and is provided with foam groove and accessory slot.
9. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 8, is characterized in that: described female circuit board is by gemel connection in experimental box body, and female circuit board is provided with handle; Described foam groove is arranged on the below of described female circuit board.
10. be applied to scm test by modularization single-chip microcomputer comprehensive exploitation experimental box described in claim 1-9, comprise step as follows:
A, turning off experimental box power supply, being inserted in groove by testing the sub-circuit board used;
B, with Du Pont's line by emulator respectively with exploitation PC and experimental box be connected;
C, exploitation PC on run Keil uVision2 development environment, set up engineering and engineering attribute be set; Write experimental arrangement, programs expect result, compiling, link, generate " .hex " file;
D, with program burn writing device by " .hex " file download of generating in singlechip controller;
E, singlechip controller working procedure;
Whether F, observation experiment phenomenon are in order expected results, if do not meet, analyze reason of makeing mistakes, repeat step C-E, the expected results until experimental phenomena is in order.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206151A (en) * | 2015-10-28 | 2015-12-30 | 北京工业大学 | Integrated analog electronic technical experiment teaching platform and implementation method |
| CN105913741A (en) * | 2016-06-29 | 2016-08-31 | 天津市百分百信息技术有限公司 | Reconfigurable embedded type innovation training method and platform |
| CN106769733A (en) * | 2017-01-10 | 2017-05-31 | 中国计量大学 | Focusing ultrasonic wave formula river load concentration on-line measurement instrument |
| CN111445766A (en) * | 2020-04-23 | 2020-07-24 | 北京华溢智造科技有限公司 | Modular self-adaptive sensor and actuator system |
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| RU2747101C1 (en) * | 2020-03-04 | 2021-04-26 | Олег Александрович Поваляев | Measuring module |
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| CN105206151B (en) * | 2015-10-28 | 2019-04-12 | 北京工业大学 | A kind of Analog Electronics Technique Experiment comprehensive teaching platform and implementation method |
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| CN106769733A (en) * | 2017-01-10 | 2017-05-31 | 中国计量大学 | Focusing ultrasonic wave formula river load concentration on-line measurement instrument |
| CN111445766A (en) * | 2020-04-23 | 2020-07-24 | 北京华溢智造科技有限公司 | Modular self-adaptive sensor and actuator system |
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