CN203520727U - Portable STM32 one-chip microcomputer teaching experiment instrument - Google Patents
Portable STM32 one-chip microcomputer teaching experiment instrument Download PDFInfo
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- CN203520727U CN203520727U CN201320683971.1U CN201320683971U CN203520727U CN 203520727 U CN203520727 U CN 203520727U CN 201320683971 U CN201320683971 U CN 201320683971U CN 203520727 U CN203520727 U CN 203520727U
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Abstract
The utility module relates to a teaching experiment instrument and especially relates to a portable experiment instrument for ARMCortex-M3 core embedded system and hardware technology field development. The experiment instrument is composed of a main control chip circuit, a peripheral control circuit and a downloading circuit. The main control chip circuit is formed by STM32F103ZET6 minimum system circuits of the STMicroelectronics. The peripheral control circuit is formed by common peripheral device interface circuits. The downloading circuit can realize three downloading modes with respect to the hardware: the first downloading mode is ISP serial port downloading, wherein the circuit is mainly formed by a CH340G chip and a support circuit thereof, and thus the switching of a USB port to a UART port is realized; the second downloading mode is ICP downloading, wherein downloading and on-line debugging function are achieved by a JTAG debugger; and the third downloading mode is IAP downloading, wherein external interfaces of a main control chip performs internal program updating on a microcontroller, of which programs are running. The experiment instrument is small in size and the interfaces are convenient, so that the experiment instrument helps students to better grasp the principles and development techniques of ARM-series one-chip microcomputers, and improve the manipulative ability and innovation ability of the students.
Description
Technical field
The utility model relates to a kind of teaching and experiment equipment, especially carries out the embedded system of ARM Cortex-M3 kernel and the pocket experiment instrument of hardware technology field exploitation.
Background technology
ARM single-chip microcomputer is a specialized courses that integrates hardware technology and software engineering, in the specialties such as the electronics of universities and colleges, computing machine, robotization, electromechanical integration, has consequence.This Curriculum Practice is strong, and difficulty is large, and the experiment that only depends on teaching programme to arrange is very limited to the raising of scholar's manipulative ability, innovation ability and overall qualities, is difficult to meet the demand of employing unit.For effectively improving student's ARM single-chip microcomputer application expertise, student should have more practice exploitation and debug time, traditional ARM experimental box volume greatly, not portable, expensive, easily damage, maintenance, difficult management, be difficult to popularize, and there is no download online mode, need to separately join programmable device, emulator etc., inconvenient scholar's study.
For above problem; in recent market, there is simple type ARM singlechip experimental facility cheaply; by external JTAG programmable device, download; the power supply of use external power supply; while being connected with PC, mainframe box need to be taken out of from computer, could be connected with cabinet parallel port behind; and unit or school computer center are used the restriction of machine more, connect machine very inconvenient.
Main flow computing machine has USB USB (universal serial bus) now, and most notebook has all been cast out serial ports and parallel port, the single USB interface of using pocket STM32 teaching experimental instrument for single chip microcomputers realizes serial ports download or download parallel port, and can provide power supply for the work of ARM single-chip microcomputer, not only solved the problem of downloading without string, parallel port, also simplified experiment instrument Wiring device, downloaded and carry and all there is stronger convenience.
Summary of the invention
Order of the present utility model be exactly to scholar provide a collection experiment instrument being connected with PC by USB interface, editor, compiling and under be loaded in the ARM single chip microcomputer teaching experiment device of one, this experimental provision has portability.
The technical solution adopted in the utility model is: experiment instrument is by main control chip circuit, peripheral control circuit and download circuit form, the minimum system circuit of the STM32F103ZET6 of main control chip main circuit Yao You ST Microelectronics forms, peripheral control main circuit will be by USB download module, 485 communications, EEPROM storage, SPI FLASH storage, TFT LCD Interface, SD card interface, RS232 interface, infrared receiving/transmission, ultrasound wave expansion interface, motor drives expansion interface, NRF905 wireless communication interface, Temperature Humidity Sensor circuit forms, download circuit mainly consists of CH340G chip and JTAG download circuit.
Specifically, the master control ARM single-chip microcomputer of this experiment instrument is the STM32F103ZET6 chip of the STM32F1 series LQFP-144 encapsulation of ST Microelectronics, the USB interface of download module turns serial ports control chip, and to select the CH340G of Nanjing, Nanjing Qin Heng company be main control chip, Temperature Humidity Sensor is selected DHT11 chip, eeprom circuit is selected AT24C02 chip, FLASH memory circuit is selected W25Q16 chip, RS232 change-over circuit is selected RS2323CSE chip, RS485 change-over circuit is selected 7L184 chip, it is main control chip that 3.2 cun of TFT liquid crystal displays of touch-screen display circuit are selected ILI9341, it is touch screens AD conversion chip that resistive touch screen is selected XPT2046, infrared circuit is selected infrared integrated head 1838 and infrared transmitting tube.
The scheme that the utility model solves multiple download online is: experiment instrument has three kinds of download online modes, one is that ISP serial port is downloaded, by interface conversion chip, CH340G is converted to UART serial ports by USB interface, make experiment instrument realize download online by USB interface, it two is that ICP downloads, connect JTAG debugger and realize download online, debugging and the variable real-time follow-up function of program, it three is that IAP downloads, and uses single-chip microcomputer external interface (USART, CAN, IIC, USB etc.) to carry out internal processes renewal to the micro controller at working procedure just.
This experiment instrument can complete LED running lamp, keyboard, relay control switch, serial communication, 485 communications, resistance-type color touch screen and drive that exploitation, SD card drive exploitation, usb communication, FATFS file system to transplant, uCGUI graphical interfaces is transplanted, uCos-II real time operating system is transplanted and the transplantation experiments of uCLinux; During experiment if the USB interface of this experiment instrument is connected with the USB mouth of PC by USB connecting line after under KEIL environment, write experiment instrument peripheral circuit driver, after direct editing, compiling, can download by KEIL direct-on-line, connect Jlink debugger and can complete breakpoint setting, data tracking and the observation of peripheral hardware register, also program can be downloaded to single-chip microcomputer and see operation result, facilitate initiator to understand ARM chip functions principle.
The advantage of this experiment instrument is:
1), experiment instrument volume is little, use flexibly, by USB mouth from PC power taking, USB general-purpose interface;
2), experiment instrument, by CH340G control chip, USB interface is converted to serial ports and download parallel port, supports hot plug, has greatly shortened the construction cycle, has increased learning efficiency;
3), experiment instrument is also supported the expansion of external unit except being integrated in the abundant peripheral hardware on plank, consider in design the needs of the ARM single chip madine reform in education, can complete the project development of different difficulty, what be conducive to improve student starts the ability of practice and innovation ability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model experiment instrument.
Embodiment
By reference to the accompanying drawings the utility model experiment instrument is described in further detail now.The schematic diagram of accompanying drawing for simplifying, basic structure of the present utility model is only described in a schematic way, so it only shows the structure relevant with the utility model.
As shown in Figure 1 be the integral structure layout of experiment instrument, by single-chip microcomputer, USB download, 485 communications, EEPROM memory circuit, SPI FLASH memory circuit, TFT LCD Interface, SD card interface, RS232 interface, infrared receiving/transmission circuit, ultrasound wave expansion interface, motor, drive expansion interface, NRF905 wireless communication interface, Temperature Humidity Sensor circuit etc. to form; Experiment instrument is the 5V power supply that adopts usb bus to provide; ARM single-chip microcomputer is selected the STM32F103ZET6 chip of ST Microelectronics; USB modular converter is used the CH340G chip of Nanjing Rui Heng company, converts usb bus to serial port and is connected with single-chip microcomputer, uses light emitting diode indication USB device connection status.
Temperature Humidity Sensor is selected DHT11, and unibus is connected with the I/O mouth of single-chip microcomputer, can react current real time temperature and humidity, and precision is high, and switching time is short, does not need outside analog to digital conversion; Infrared transmitting tube is sightless infrared by the carrier wave transmission of 38khz, by 1838 infrared receiving tubes, receives and process corresponding function code, can define by 1838 decoding and the functions that realize diverse telepilot simultaneously; EEPROM selects AT24C02, uses IIC communication interface, can be used for preserving start setting; FLASH selects the W25Q16 chip of winbond electronics, uses SPI serial communication interface, can be used for the auxiliary of crystal display, preserves Hanzi font library file, realizes the storage of font file; 485 conversion chips are selected 7L184, and stable working state is widely used in industrial circle, can complete commercial unit and control experiment; SD card interface is inserted widely used SD card and TF card, can complete the transplantation experiments of FATFS file system; The LCD Interface of 3.2 cun, can complete Chinese character or Image Display and uCGUI transplantation experiments; That experiment instrument main control chip is selected is STM32F103ZET6, and in-chip FLASH ROM capacity is 512KB, and on-chip SRAM is 64KB, diverse in function in sheet, sophisticated functions design can be completed, with 72MHZ frequency high-speed cruising, uCos-II real time operating system transplanting etc. can be completed.
In experiment instrument, most equipment can concurrent working, and the experiment instrument peripheral hardware that plate has carried and interface synthesis are used, project that can completion system level, and can guarantee that whole system is safe and reliable to operation, interference-free.
The just embodiment of this experiment instrument of describing in above instructions, various not illustrating is construed as limiting the flesh and blood of this experiment instrument, person of an ordinary skill in the technical field read after instructions can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of utility model.
Claims (3)
1. pocket STM32 teaching experimental instrument for single chip microcomputers, it is characterized by: experiment instrument is by main control chip circuit, peripheral control circuit and download circuit form, the minimum system circuit of the STM32F103ZET6 of main control chip main circuit Yao You ST Microelectronics forms, peripheral control main circuit will be by USB download module, 485 communications, EEPROM storage, SPI FLASH storage, TFT LCD Interface, SD card interface, RS232 interface, infrared receiving/transmission, ultrasound wave expansion interface, motor drives expansion interface, NRF905 wireless communication interface, Temperature Humidity Sensor circuit forms, download circuit mainly consists of CH340G chip and JTAG download circuit.
2. according to right 1, require described pocket STM32 teaching experimental instrument for single chip microcomputers, it is characterized by: described experiment instrument is to be connected with PC by USB, be applicable to carry out online programming and debugging without the notebook of parallel port and serial port, download circuit can be selected SRAM, FLASH and tri-kinds of start-up mode of BootLeade, and the tri-kinds of modes of ISP, ICP and IAP that realize are respectively downloaded.
3. according to right 1, require described pocket STM32 teaching experimental instrument for single chip microcomputers, it is characterized by: described ARM single-chip microcomputer is the STM32F103ZET6 chip of the STM32F1 series LQFP-144 encapsulation of ST Microelectronics, the control chip that USB interface turns serial ports is CH340G chip, Temperature Humidity Sensor is selected DHT11 chip, eeprom circuit is selected AT24C02 chip, FLASH memory circuit is selected W25Q16 chip, RS232 change-over circuit is selected RS2323CSE chip, RS485 change-over circuit is selected 7L184 chip, it is main control chip that 3.2 cun of TFT liquid crystal displays of touch-screen display circuit are selected ILI9341, it is touch screens AD conversion chip that resistive touch screen is selected XPT2046, infrared circuit is selected infrared integrated head 1838 and infrared transmitting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683971.1U CN203520727U (en) | 2013-11-02 | 2013-11-02 | Portable STM32 one-chip microcomputer teaching experiment instrument |
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| CN201320683971.1U CN203520727U (en) | 2013-11-02 | 2013-11-02 | Portable STM32 one-chip microcomputer teaching experiment instrument |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181917A (en) * | 2014-08-30 | 2014-12-03 | 山东理工大学 | Freescale single chip microcomputer experiment system |
| CN104503940A (en) * | 2014-11-26 | 2015-04-08 | 苏州速腾电子科技有限公司 | Novel debugging and communication module |
| CN104537905A (en) * | 2015-01-19 | 2015-04-22 | 北京电子科技职业学院 | Microprocessor based PCM (pulse code modulation) principle analysis experiment method and system |
| CN104992598A (en) * | 2015-07-21 | 2015-10-21 | 巢湖学院 | Single chip microcomputer experiment teaching board automatically guiding students to conduct wiring |
| CN106292342A (en) * | 2015-05-15 | 2017-01-04 | 北京四维拓智教育科技有限公司 | Processor, external device, control system and hot-plug method thereof |
| CN106781921A (en) * | 2017-01-18 | 2017-05-31 | 广州大学 | A kind of Internet of Things experimental box based on STM32 microcontrollers |
| CN107067913A (en) * | 2017-05-12 | 2017-08-18 | 燕山大学 | STM32 Project teaching comprehensive experimental teaching platforms |
| CN108984457A (en) * | 2017-07-20 | 2018-12-11 | 湖北工业大学 | A kind of USB Host HID experimental method based on STM32F7 |
| CN109658787A (en) * | 2017-10-12 | 2019-04-19 | 江南大学 | A kind of open source Internet of Things infrastest platform |
| CN109949671A (en) * | 2019-04-24 | 2019-06-28 | 河北工业大学 | A kind of teaching experiment platform based on STM32 single-chip microcontroller |
| CN110211463A (en) * | 2019-06-05 | 2019-09-06 | 哈尔滨理工大学 | A kind of Internet of Things experimental box of short-distance wireless communication |
| CN111653180A (en) * | 2020-06-29 | 2020-09-11 | 广东卓瑞科技教育股份有限公司 | Industrial robot for teaching of robot workstation |
-
2013
- 2013-11-02 CN CN201320683971.1U patent/CN203520727U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181917A (en) * | 2014-08-30 | 2014-12-03 | 山东理工大学 | Freescale single chip microcomputer experiment system |
| CN104503940A (en) * | 2014-11-26 | 2015-04-08 | 苏州速腾电子科技有限公司 | Novel debugging and communication module |
| CN104537905A (en) * | 2015-01-19 | 2015-04-22 | 北京电子科技职业学院 | Microprocessor based PCM (pulse code modulation) principle analysis experiment method and system |
| CN104537905B (en) * | 2015-01-19 | 2015-08-12 | 北京电子科技职业学院 | PCM pulse code modulation (PCM) principle based on microprocessor resolves experimental technique and system |
| CN106292342B (en) * | 2015-05-15 | 2018-11-02 | 北京四维拓智教育科技有限公司 | Processor, external device, control system and its hot-plug method |
| CN106292342A (en) * | 2015-05-15 | 2017-01-04 | 北京四维拓智教育科技有限公司 | Processor, external device, control system and hot-plug method thereof |
| CN104992598A (en) * | 2015-07-21 | 2015-10-21 | 巢湖学院 | Single chip microcomputer experiment teaching board automatically guiding students to conduct wiring |
| CN106781921A (en) * | 2017-01-18 | 2017-05-31 | 广州大学 | A kind of Internet of Things experimental box based on STM32 microcontrollers |
| CN107067913A (en) * | 2017-05-12 | 2017-08-18 | 燕山大学 | STM32 Project teaching comprehensive experimental teaching platforms |
| CN108984457A (en) * | 2017-07-20 | 2018-12-11 | 湖北工业大学 | A kind of USB Host HID experimental method based on STM32F7 |
| CN109658787A (en) * | 2017-10-12 | 2019-04-19 | 江南大学 | A kind of open source Internet of Things infrastest platform |
| CN109949671A (en) * | 2019-04-24 | 2019-06-28 | 河北工业大学 | A kind of teaching experiment platform based on STM32 single-chip microcontroller |
| CN110211463A (en) * | 2019-06-05 | 2019-09-06 | 哈尔滨理工大学 | A kind of Internet of Things experimental box of short-distance wireless communication |
| CN111653180A (en) * | 2020-06-29 | 2020-09-11 | 广东卓瑞科技教育股份有限公司 | Industrial robot for teaching of robot workstation |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141102 |
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| EXPY | Termination of patent right or utility model |