CN104778887B - A kind of modularization single-chip microcomputer comprehensive exploitation experimental box and its application - Google Patents
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box and its application Download PDFInfo
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- CN104778887B CN104778887B CN201510227088.5A CN201510227088A CN104778887B CN 104778887 B CN104778887 B CN 104778887B CN 201510227088 A CN201510227088 A CN 201510227088A CN 104778887 B CN104778887 B CN 104778887B
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Abstract
The present invention relates to a kind of modularization single-chip microcomputer comprehensive exploitation experimental box and its application, the chamber in the groove of female circuit board by setting raised shell fragment, breach corresponding with raised shell fragment is provided with the edge of sub-circuit board, sub-circuit board insertion is arranged in the groove, and raised shell fragment is caught in the breach and is connected with the sheet metal；The defect of difficult alignment when the small circuit board of conventional one-piece machine comprehensive exploitation experimental box is installed not only is overcome, and effectively prevent the problem of plug and socket of plug repeatedly are easily damaged.
Description
Technical field
The present invention relates to a kind of modularization single-chip microcomputer comprehensive exploitation experimental box and its application, belong to the technology neck of instruments used for education
Domain.
Background technology
Single-chip microcomputer is a kind of IC chip, is with data-handling capacity using very large scale integration technology
Central processor CPU, random access memory ram, read only memory ROM, a variety of I/O ports, interrupt system and timer/timing
The electronic components such as device (may also include display driver circuit, pulse-width modulation circuit, analog multiplexer, A/D converter etc.)
It is integrated into the small and perfect microcomputer system constituted on one piece of silicon chip.Nowadays single-chip microcomputer has penetrated into us and given birth to
Every field living, plays irreplaceable effect, so the study and grasp for single-chip microcomputer relevant knowledge become to weigh very much
Will, and it is a particularly important part in single-chip learning to do single chip computer experiment.
For conventional singlechip experimental box, mostly using integrated design, in an experiment, experimenter is needed in a monoblock
A variety of operations are carried out on large circuit board, it is necessary to which external a large amount of wires, while easy wiring error, operation is also complex, no
The control communication between the working method of single-chip microcomputer and modules is understood beneficial to experimenter；It is additionally, since the IO of single-chip microcomputer
Mouth is limited, and the experiment content that can relate on same circuit board is very limited；In addition, traditional singlechip experimental box needs are outer
It is also inconvenient when band demonstration.For the above-mentioned deficiency of scm test case, existing solution is to carry out single-chip microcomputer
Modularization, is detachably arranged in the total module of single-chip microcomputer, so as to improve the flexibility that singlechip experimental box is used；But, this
The scm test case for planting design is to use banana plug or ox horn plug mostly, is connected with the total module of single-chip microcomputer, connection
When it is inconvenient, the plug and socket of plug are easily damaged repeatedly, moreover, one-chip computer module is all one piece of small circuit board, are wanted
Plug on small circuit board is inserted on another piece of plank, it is difficult to be aligned.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of modularization single-chip microcomputer comprehensive exploitation experimental box, the chamber
By setting raised shell fragment in the groove of female circuit board, it is provided with projection that shell fragment is corresponding lacks at the edge of sub-circuit board
Mouthful, sub-circuit board insertion is arranged in the groove, and raised shell fragment is caught in the breach and is connected with the sheet metal；Not only gram
The defect of difficult alignment when the small circuit board of conventional one-piece machine comprehensive exploitation experimental box is installed has been taken, and effectively prevent plug repeatedly
Plug and socket the problem of be easily damaged.
The present invention also provides a kind of application by above-mentioned modularization single-chip microcomputer comprehensive exploitation experimental box.
Technical scheme is as follows：
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box, including casing, female circuit board and sub-circuit board；Female circuit
Plate is provided with multiple grooves corresponding with sub-circuit board size, the side wall of the groove and is provided with raised shell fragment, the projection
Connected between shell fragment by network copper film on female circuit board；The edge of sub-circuit board is provided with breach corresponding with raised shell fragment,
The sheet metal being connected with network copper film is provided with breach；Sub-circuit board insertion is arranged in the groove, and raised shell fragment is caught in
It is connected in the breach with the sheet metal；Female circuit board and sub-circuit board are arranged in casing.
Each experiment module is made dismountable sub-circuit board by network copper film herein equivalent to bus, the electricity per height
Road plate free plug can change position on female circuit board, and each raised shell fragment of female circuit board is mutual by network copper film
Connection, without external bus, eliminates the numerous and diverse of connecting line, not only production cost is low, and beneficial to experiment effect is improved, is easy to
Operation, it is easy to which operator understands.
According to currently preferred, the raised shell fragment is the raised shell fragment of copper, and the raised shell fragment of the copper is connected two-by-two.It is copper
Electric conductivity it is good, toughness might as well, can so ensure to contact close between female circuit board and sub-circuit board, not virtual connection；Avoid
Unnecessary trouble is brought to user；Connection ensure that connection can be implemented separately in the raised shell fragment of any two two-by-two, improve
Convenience and flexibility that experimental box is used.
According to currently preferred, the number of the groove is 4.So not only make it that the space of female circuit board is obtained
Adequately and reasonably utilize, but also the requirement that user does various experiments can be met, without plugging in test son electricity again
Road plate.
According to currently preferred, the sub-circuit board includes core daughter board (MCU), parallel I/O expansion daughter board (PIO), deposited
Reservoir and real-time clock extension daughter board (Memory＆RTC), matrix keyboard and LED numeral methods extension daughter board (Key＆LED)；
Be provided with the core daughter board CPU, crystal oscillator socket and output voltage be+5V, -5V ,+12V power-switching circuit；It is described
Parallel I/O expansion daughter board (PIO) include 74LS373 extend parallel I/O port, 74LS164 and 74LS164 transformation from serial to parallel I/O port,
PCF8574I2C turns parallel I/O port, the 8255 parallel I/O ports of extension, 8 toggle switch I/O signal input circuits, 8 LED I/O signals
Output, 3 × 4 red greenish-yellow three-color LED traffic signal lamp indicating circuits.The advantage designed herein is that core daughter board can connect many
Model single-chip microcomputer, and a variety of crystal oscillators are planted, emulator can also be connected and debugged；+ 5V, -5V ,+12V voltage can be met in casing
The need for when testing outside.
According to the present invention it is further preferred that the memory includes depositing with real-time clock extension daughter board (Memory＆RTC)
Reservoir (Memory) and real-time clock (RTC)；Shown memory (Memory) includes RAM 62256, program storage EEPROM
W27C512, serial E2PROM 24C02, SD card interface, Contact Type Ic Card interface；The memory extends daughter board with real-time clock
(Memory＆RTC) DS12887 chips and the PCF8563 of serial line interface including parallel interface.
According to the present invention it is further preferred that the matrix keyboard is wrapped with LED numeral methods extension daughter board (Key＆LED)
Include static LED, dynamic keyboard scanning and LED display circuit；The static LED includes 74LS164 and two panels CD4511, described
74LS164 and two panels CD4511 constitutes double binary-coded decimals and shown；Dynamic keyboard is scanned and LED display circuit includes HD7279,6 × 4 rows
Row keyboard and 6 eight sections of LED charactrons.
According to currently preferred, the sub-circuit board also include LCD liquid crystal displays and LED dot matrix extension daughter board (LCD),
Modulus and digital-to-analogue conversion extension daughter board (AD＆DA), sensor extension daughter board (Sensor), driver extension daughter board (Driver),
Communication extension daughter board (Communication), audio extension daughter board (Audio), waveform generator extension daughter board (Wave
) and IC-card and radio-frequency card Card Reader daughter board (Card Reader) Generation；The LCD liquid crystal displays extend son with LED dot matrix
Plate (LCD) includes the display module of LCD for Character Type 1602, the display modules of dot matrix type LCD 12864 with Hanzi font library and 16 ××s
16LED lattice modules；The modulus and digital-to-analogue conversion extension daughter board (AD＆DA) provide 7810 liang of Parallel ADC 0809 and serial AD
Individual A/D converter circuit, parallel DAC0832 and serial TLC5615, two DA change-over circuits and 0~5V adjustable potential generative circuits；
The sensor extension daughter board (Sensor) includes infrared tube, infrared thermal release electric, supersonic sounding, DS18B20 thermometrics, HS1101
Measuring moisture, DHT11 thermometric humidity sensors；The driver extension daughter board (Driver) includes model L298N direct current generators
And stepper motor driving circuit, model L298N direct current generators and stepper motor directly configure, or external；The driving electricity
Road includes relay circuit and LM386N-1 audio power amplifier circuits, and the outputting circuit for relay load capacity is 10A；It is described logical
Letter extension daughter board (Communication) includes 485 buses, PT2272 wireless remote controls, nRF2401 radio communications, SJA1000T
CAN, CH375USB Device and USB Host, W5100 ethernet interface；The audio extension daughter board (Audio)
With ISD1760 audio record circuits, VS1003MP3 playing circuits；The waveform generator extension daughter board (Wave
Generation) there is ICL8038 square waves, triangular wave, sine wave signal to occur circuit, frequency range is 20~20KHz, with
Pulse and sawtooth waveforms generative circuit, pulse high level and low level centered on NE555, the rising edge and trailing edge of sawtooth waveforms are all
It is Independent adjustable, frequency range is 20~20KHz, and duty cycle range is 1%~99%, all waveform output amplitudes adjustable (0
~5V), triangular wave, sawtooth waveforms pedestals are adjustable (- 2.5V~0V)；IC-card and radio-frequency card Card Reader the daughter board (Card
Reader Contact Type Ic Card, non-contact high-frequency RFID ISO4443A/B cards can) be read and write.
The motor-drive circuit driving force is strong, and (, up to 46V, output current is big for maximum operating voltage, transient peak electricity
Stream is up to 3A, and continuous firing electric current is 2A, rated power 25W).
According to currently preferred, female circuit board is provided with the anti-circnit NOT of power supply, fuse and expands interface.Power supply
Anti- circnit NOT, fuse ensure Electrical Safety；The expansion interface is used to expand the more sub-circuit boards of connection and connected outside other
Attached device.
According to currently preferred, foam groove and accessory slot are provided with the casing.The advantage designed herein is, can be by
The sub-circuit board taken less than in experiment is temporarily stored in foam groove, so both can make case rationally using space in casing
Body becomes more compact, is easy to carry, and the groove of foam can also play a part of drop resistant；The accessory slot can be with
For depositing Du Pont's line, short circuit cap, can plug the various devices such as chip.
According to the present invention it is further preferred that female circuit board by gemel connection in experimental box body, female circuit board
It is provided with handle；The foam groove is arranged on the lower section of female circuit board.Female circuit board can freely lift in casing,
It is exactly above-mentioned groove under female circuit board, can very easily takes out the sub-circuit board required for experiment, and can make full use of
Cabinet space, it is convenient and practical.
The scm test that is applied to of above-mentioned modularization single-chip microcomputer comprehensive exploitation experimental box, including step is as follows：
A, turn off experimental box power supply, the sub-circuit board used will be tested and be inserted into groove；
B, with Du Pont's line by emulator respectively with exploitation PC and experimental box be connected；
C, the operation Keil uVision2 development environments on exploitation PC, set up engineering and set engineering attribute；Write reality
Program, program expected results are tested, are compiled, link generates " .hex " file；
D, with program burn writing device by " .hex " file download of generation into singlechip controller；
E, singlechip controller operation program；
Whether F, observation experiment phenomenon are in order expected results, if not meeting, analysis error reason, repeat step C-E,
Until experimental phenomena is in order expected results.
According to currently preferred, the singlechip controller is AT89S51 singlechip controllers.
Advantage of the invention is that：
1st, modularization single-chip microcomputer comprehensive exploitation experimental box of the present invention, and employ the modular frame for being highly convenient for operation
Structure, covers the various related experiments among single-chip microcomputer teaching material；It is adapted to carry out single chip computer experiment class in undergraduate course, universities
Journey, Course Exercise, use among scientific research and development；
2nd, modularization single-chip microcomputer comprehensive exploitation experimental box of the present invention, is provided with and shell fragment by the edge of sub-circuit board
Corresponding breach, sub-circuit board insertion is arranged in the groove and realizes that raised shell fragment is caught in the breach and the metal
Piece is connected, and not only overcomes the defect of difficult alignment when the small circuit board of conventional one-piece machine comprehensive exploitation experimental box is installed, and effectively
The problem of plug and socket for avoiding plug repeatedly are easily damaged.
Brief description of the drawings
Fig. 1 is the structural representation of female circuit board of the present invention；
Fig. 2 is the casing top view of modularization single-chip microcomputer comprehensive exploitation experimental box of the present invention；
Wherein, 1, female circuit board；2nd, sub-circuit board；3rd, bus；4th, foam groove；5th, groove；6th, accessory slot.
Embodiment
The present invention is described in detail with reference to embodiment and Figure of description, but not limited to this.
Embodiment 1,
As shown in Figure 1-2.
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box, including casing, female circuit board and sub-circuit board；Female circuit
Plate, which is provided with 4 grooves corresponding with sub-circuit board size, the side wall of the groove, is provided with the raised shell fragment of copper, the projection
Connected between shell fragment by network copper film on female circuit board, the raised shell fragment of the copper is connected two-by-two；The edge of sub-circuit board is set
Have in breach corresponding with shell fragment, breach and be provided with the sheet metal being connected with network copper film；Sub-circuit board insertion is arranged on described
In groove, raised shell fragment is caught in the breach and is connected with the sheet metal；Female circuit board and sub-circuit board are arranged on case
In vivo.
Each experiment module is made dismountable sub-circuit board by network copper film herein equivalent to bus, the electricity per height
Road plate free plug can change position on female circuit board, and each raised shell fragment of female circuit board is mutual by network copper film
Connection, without external bus, eliminates the numerous and diverse of connecting line, not only production cost is low, and beneficial to experiment effect is improved, is easy to
Operation, it is easy to which operator understands；Copper electric conductivity is good, toughness, can so ensure female circuit board and sub-circuit board
Between contact close, not virtual connection；Avoid bringing unnecessary trouble to user；Connection ensure that the raised bullet of any two two-by-two
Connection can be implemented separately in piece, improve convenience and flexibility that experimental box is used；
The sub-circuit board includes core daughter board (MCU), parallel I/O expansion daughter board (PIO), memory and real-time clock and expanded
Open up daughter board (Memory＆RTC), matrix keyboard and LED numeral methods extension daughter board (Key＆LED)；Set on the core daughter board
Be equipped with CPU, crystal oscillator socket and output voltage be+5V, -5V ,+12V power-switching circuit；The parallel I/O expansion daughter board
(PIO) include 74LS373 and extend parallel I/O port, 74LS164 and 74LS164 transformation from serial to parallel I/O port, PCF8574I2C turns parallel
It is I/O port, the 8255 parallel I/O ports of extension, 8 toggle switch I/O signal input circuits, 8 LED I/O signals output, 3 × 4 red greenish-yellow
Three-color LED traffic signal lamp indicating circuit.The advantage designed herein is that core daughter board can connect Multiple Type single-chip microcomputer, and
A variety of crystal oscillators, can also connect emulator and be debugged；+ 5V, -5V ,+12V voltage can meet need when outside the enclosure is tested
Will.
The memory includes memory (Memory) and real-time clock with real-time clock extension daughter board (Memory＆RTC)
(RTC)；Shown memory (Memory) includes RAM 62256, program storage EEPROM W27C512, serial E2PROM
24C02, SD card interface, Contact Type Ic Card interface；The memory includes simultaneously with real-time clock extension daughter board (Memory＆RTC)
The DS12887 chips and the PCF8563 of serial line interface of line interface.
The matrix keyboard includes static LED, dynamic keyboard with LED numeral methods extension daughter board (Key＆LED) and scanned
And LED display circuit；The static LED includes 74LS164 and two panels CD4511, the 74LS164 and two panels CD4511 are constituted
Double binary-coded decimals are shown；Dynamic keyboard is scanned and LED display circuit includes HD7279,6 × 4 ranks keyboards and 6 eight sections of LED numbers
Pipe.
The sub-circuit board also includes LCD liquid crystal displays and expanded with LED dot matrix extension daughter board (LCD), modulus and digital-to-analogue conversion
Open up daughter board (AD＆DA), sensor extension daughter board (Sensor), driver extension daughter board (Driver), communication extension daughter board
(Communication), audio extension daughter board (Audio), waveform generator extension daughter board (Wave Generation) and IC-card
And radio-frequency card Card Reader daughter board (Card Reader)；The LCD liquid crystal displays include character with LED dot matrix extension daughter board (LCD)
Type LCD1602 display modules, the display modules of dot matrix type LCD 12864 and 16 × 16LED lattice modules with Hanzi font library；It is described
Modulus and digital-to-analogue conversion extension daughter board (AD＆DA) provide Parallel ADC 0809 and serial AD 7,810 two A/D converter circuits, parallel
DAC0832 and serial TLC5615, two DA change-over circuits and 0~5V adjustable potential generative circuits；The sensor extends daughter board
(Sensor) infrared tube, infrared thermal release electric, supersonic sounding, 18B20 thermometrics, HS1101 measuring moistures, DHT11 thermometric humidity are included
Sensor；The driver extension daughter board (Driver) includes model L298N direct current generators and stepper motor driving circuit, type
Number directly configured for L298N direct current generators and stepper motor, or it is external；The drive circuit include relay circuit and
LM386N-1 audio power amplifier circuits, the outputting circuit for relay load capacity is 10A；The communication extension daughter board
(Communication) including 485 buses, PT2272 wireless remote controls, nRF2401 radio communications, SJA1000T CANs,
CH375USB Device and USB Host, W5100 ethernet interface；The audio extension daughter board (Audio) has
ISD1760 audio record circuits, VS1003MP3 playing circuits；The waveform generator extension daughter board (Wave Generation)
Occurs circuit with ICL8038 square waves, triangular wave, sine wave signal, frequency range is 20~20KHz, centered on NE555
Pulse and sawtooth waveforms generative circuit, pulse high level and low level, the rising edge and trailing edge of sawtooth waveforms are all Independent adjustables,
Frequency range is 20~20KHz, and duty cycle range is 1%~99%, and all waveform output amplitudes are adjustable (0~5V), triangular wave,
Sawtooth waveforms pedestals are adjustable (- 2.5V~0V)；IC-card and radio-frequency card the Card Reader daughter board (Card Reader), which can read and write, to be connect
Touch IC-card, non-contact high-frequency RFID ISO4443A/B cards.
The motor-drive circuit driving force is strong, and (, up to 46V, output current is big for maximum operating voltage, transient peak electricity
Stream is up to 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：Female circuit board is set
It is equipped with the anti-circnit NOT of power supply, fuse and expands interface.The anti-circnit NOT of power supply, fuse ensure Electrical Safety；The expansion connects
Mouth is used to expand the more sub-circuit boards of connection and other outer attached devices of connection.
Embodiment 3,
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box as described in Example 1, difference is：It is provided with the casing
Foam groove and accessory slot.The advantage designed herein is the sub-circuit board taken less than in experiment can be temporarily stored in into foam recessed
In groove, so casing can both be made to become more compact, be easy to carry rationally using space in casing, and foam
Groove can also play a part of drop resistant；The accessory slot can be used to deposit Du Pont's line, short circuit cap, can plug chip etc. it is each
Plant device.
Embodiment 4,
A kind of modularization single-chip microcomputer comprehensive exploitation experimental box as described in Example 3, difference is：Female circuit board leads to
Gemel connection is crossed in experimental box body, female circuit board is provided with handle；The foam groove is arranged under female circuit board
Side.Female circuit board can freely lift in casing, be exactly above-mentioned groove under female circuit board, can very easily take out experiment
Required sub-circuit board, and cabinet space can be made full use of, it is convenient and practical.
Embodiment 5,
Modularization single-chip microcomputer comprehensive exploitation experimental box described in embodiment 1-4 is applied to scm test, including step
It is rapid as follows：
A, turn off experimental box power supply；By core daughter board (MCU), parallel I/O expansion daughter board (PIO), matrix keyboard and LED numbers
Code pipe display extension daughter board (Key＆LED) is inserted into groove.
B, with Du Pont's line by emulator respectively with exploitation PC and experimental box be connected；Will emulation under emulator powering-off state
The artificial head of device is inserted on core daughter board (MCU) CPU socket；Emulator is connected with developing the port of PC, opened
The power supply of experimental box and emulator；
C, the operation Keil uVision2 development environments on exploitation PC, setting up engineering PIO164_c.uV2, CPU is
AT89S51, includes startup file STARTUP.A51；Create source program PIO_164.c and be added to engineering PIO_164_c.uV2,
And engineering PIO_164_c.uV2 attributes are set, its crystal oscillator frequency is set to 11.0592MHz, selection exports executable file,
DEBUG modes select hardware DEBUG, and select " WAVE V seriesMCS51Driver " emulators therein；Construction
(Build) engineering PIO_164_c.uV2；Modified if programming is wrong, untill construction is correct；By the experiment journey write
Sequence, is compiled, and link generates " .hex " file；
D, with program burn writing device by " .hex " file download of generation to AT89S51 singlechip controllers；
E, singlechip controller operation program；
F, change DIP switch SP1M3 (PIO) on off state, the numerical value and DIP switch pair of the static numeral method of observation
Whether the decimal number answered is consistent；If inconsistent, analysis error reason continues to repeat the step of C-E is walked, until result is just
Really.
Claims (10)
1. a kind of modularization single-chip microcomputer comprehensive exploitation experimental box, including casing, female circuit board and sub-circuit board；Characterized in that,
Female circuit board is provided with multiple grooves corresponding with sub-circuit board size, the side wall of the groove and is provided with raised bullet
Connected between piece, the raised shell fragment by the network copper film on female circuit board；The edge of sub-circuit board is provided with and raised bullet
The sheet metal being connected with network copper film is provided with the corresponding breach of piece, breach；Sub-circuit board insertion is arranged in the groove,
Raised shell fragment is caught in the breach and is connected with the sheet metal；Female circuit board and sub-circuit board are arranged in casing.
2. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, it is characterised in that：The raised shell fragment is
Copper projection shell fragment, the raised shell fragment of the copper is connected two-by-two.
3. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, it is characterised in that：The number of the groove
It is 4.
4. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, it is characterised in that：The sub-circuit board bag
Core daughter board, parallel I/O expansion daughter board, memory and real-time clock extension daughter board, matrix keyboard and LED numeral methods is included to expand
Open up daughter board；Be provided with the core daughter board CPU, crystal oscillator socket and output voltage be+5V, -5V ,+12V Power convert electricity
Road；The parallel I/O expansion daughter board include 74LS373 extend parallel I/O port, 74LS164 and 74LS164 transformation from serial to parallel I/O port,
PCF8574 I2C turn parallel I/O port, the 8255 parallel I/O ports of extension, 8 toggle switch I/O signal input circuits, 8 LED IO letters
Number output, 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, it is characterised in that：The memory and reality
Shi Shizhong extension daughter boards include memory and real-time clock；The memory includes RAM 62256, program storage EEPROM
W27C512, serial E2PROM 24C02, SD card interface, Contact Type Ic Card interface；The memory extends daughter board with real-time clock
The PCF8563 of DS12887 chips and serial line interface including parallel interface.
6. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 4, it is characterised in that：The matrix keyboard with
LED numeral methods extension daughter board includes static LED, dynamic keyboard scanning and LED display circuit；The static LED includes
74LS164 and two panels CD4511, the 74LS164 and two panels CD4511 constitute double binary-coded decimals and shown；Dynamic keyboard is scanned and LED
Display circuit includes 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, it is characterised in that：The sub-circuit board is also
Including LCD liquid crystal displays and LED dot matrix extension daughter board, modulus and digital-to-analogue conversion extension daughter board, sensor extension daughter board, driver
Extend daughter board, communication extension daughter board, audio extension daughter board, waveform generator extension daughter board and IC-card and radio-frequency card Card Reader daughter board；
The LCD liquid crystal displays include the display module of LCD for Character Type 1602, the dot matrix type with Hanzi font library with LED dot matrix extension daughter board
The display modules of LCD 12864 and 16 × 16LED lattice modules；The modulus and digital-to-analogue conversion extension daughter board include parallel
7,810 two A/D converter circuits of ADC0809 and serial AD, parallel DAC0832 and serial TLC5615, two DA change-over circuits and 0
~5V adjustable potential generative circuits；The sensor extension daughter board includes infrared tube, infrared thermal release electric, supersonic sounding, 18B20
Thermometric, HS1101 measuring moistures, DHT11 thermometric humidity sensors；The driver extension daughter board includes model L298N direct currents
Machine and stepper motor driving circuit, model L298N direct current generators and stepper motor are directly configured, or external；The driving
Circuit includes relay circuit and LM386N-1 audio power amplifier circuits, and the outputting circuit for relay load capacity is 10A；It is described
Communication extension daughter board includes 485 buses, PT2272 wireless remote controls, nRF2401 radio communications, SJA1000T CANs, CH375
USB Device and USB Host, W5100 ethernet interface；The audio extension daughter board includes ISD1760 speech recording and reproducings
Circuit, VS1003 MP3 playing circuits；The waveform generator extension daughter board has ICL8038 square waves, triangular wave, sine wave letter
Number occurs circuit, frequency range is 20~20KHz, pulse centered on NE555 and sawtooth waveforms generative circuit, the height electricity of pulse
Flat and low level, the rising edge and trailing edge of sawtooth waveforms are all Independent adjustables, and frequency range is 20~20KHz, dutycycle model
Enclose for 1%~99%, all waveform output amplitudes are adjustable, and amplitude range is 0~5V, triangular wave, sawtooth waveforms pedestals adjustable electric
Flat scope is -2.5V~0V；IC-card and radio-frequency card the Card Reader daughter board reads and writes Contact Type Ic Card, non-contact high-frequency RFID
ISO4443A/B cards.
8. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 1, it is characterised in that：Female circuit board is set
It is equipped with the anti-circnit NOT of power supply, fuse and expands and foam groove and accessory slot is provided with interface, the casing.
9. modularization single-chip microcomputer comprehensive exploitation experimental box according to claim 8, it is characterised in that：Female circuit board leads to
Gemel connection is crossed in experimental box body, female circuit board is provided with handle；The foam groove is arranged under female circuit board
Side.
It is real that 10. a kind of modularization single-chip microcomputer comprehensive exploitation experimental box by described in claim any one of 1-9 is applied to single-chip microcomputer
The method tested, including step are as follows：
A, turn off experimental box power supply, the sub-circuit board used will be tested and be inserted into groove；
B, with Du Pont's line by emulator respectively with exploitation PC and experimental box be connected；
C, the operation Keil uVision2 development environments on exploitation PC, set up engineering and set engineering attribute；Write experiment journey
Sequence, program expected results, are compiled, and link generates " .hex " file；
D, with program burn writing device by " .hex " file download of generation into singlechip controller；
E, singlechip controller operation program；
Whether F, observation experiment phenomenon are in order expected results, if not meeting, analysis error reason, repeat step C-E, until
Experimental phenomena is in order expected results.
Priority Applications (1)
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| RU2747101C1 (en) * | 2020-03-04 | 2021-04-26 | Олег Александрович Поваляев | Measuring module |
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