CN102254469A - Experimental device based on embedded development platform - Google Patents
Experimental device based on embedded development platform Download PDFInfo
- Publication number
- CN102254469A CN102254469A CN201010182522XA CN201010182522A CN102254469A CN 102254469 A CN102254469 A CN 102254469A CN 201010182522X A CN201010182522X A CN 201010182522XA CN 201010182522 A CN201010182522 A CN 201010182522A CN 102254469 A CN102254469 A CN 102254469A
- Authority
- CN
- China
- Prior art keywords
- serial ports
- lcd
- module
- serial interface
- development platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention relates to an experimental operation device, and in particular relates to an experimental device based on an embedded development platform. The experimental device based on the embedded development platform comprises a serial interface I, a serial interface II, an LCD (Liquid Crystal Display) connection module, a random access memory, a Nor Flash module, a programming keystroke, a power supply, a JTAG (Joint Test Action Group) module, an LED (Light Emitting Diode) lamp, a buzzer and a central micro-processor. The serial interface I, the serial interface II, the LCD connection module, the random access memory, the Nor Flash module, the programming keystroke, the power supply, the JTAG module, the LED lamp and the buzzer are connected with the central micro-processor respectively. The other ends of the serial interface I and the serial interface II are connected with a PC (Personal Computer) respectively. The other end of the LCD connection module is connected with an LCD display screen. The platform is widely used for industrial control, medical equipment, access control, a POS (Point of Sales) machine, a communication gateway, an embedded soft moderm and the like. The expandability and the adaptability of the system are greatly improved.
Description
Technical field
The present invention relates to a kind of experimental implementation device, relate in particular to a kind of experimental provision based on embedded development platform.
Background technology
In today of infotech high speed prosperity, computing machine has entered epoch that are full of opportunities and challenges, along with industry member to improving constantly that Based Intelligent Control requires, various informative digital intelligent product arises at the historic moment, and becomes the critical piece that replaces PC to carry out information processing.In these parts, embed microprocessor, also just become so-called embedded system.Embedded system has been dissolved in people's the life, and ubiquitous, considerably beyond the application of general purpose PC.
Present various embedded development platform, or be based on the learning board of more low-grade processor chips, can only do some simple study programmings.If the learning board of more high-grade processor chips, then interface lacks usually, and the user also can only carry out the study of related software.The large-screen lc screen that can not provide video to show usefulness simultaneously.These defectives make these development boards can't realize Embedded System Design and the study of handling at signal specific.
In the present colleges and universities course, a lot of colleges and universities are the single-chip microcomputer principle with regard to using before using 10 years also, and single-chip microcomputer progressively falls behind, and much upgrading higher requirement has not been that single-chip microcomputer can be realized.And corresponding practice course lacks more.In addition, scientific and technological class company is in the R﹠D process of relevant embedded platform experimental provision, and the level of hardware platform is very low.Development of technologies, no matter cultivate from the practice and the manipulative ability of college student, still be aspects such as constantly weeding out the old and bring forth the new of scientific ﹠ technical corporation's product, all require aspect system design, can develop along with sending out of technology, and can in time release effective embedded system study and design platform, realize complete signal processing.
Summary of the invention
Technique effect of the present invention can overcome above-mentioned defective, and a kind of experimental provision based on embedded development platform is provided, and it can finish kinds of experiments or teaching demonstration function.
For achieving the above object, the present invention adopts following technical scheme: it comprises serial ports I, serial ports II, LCD link block, random access memory, Nor Flash module, programming button, power supply, JTAG module, LED lamp, hummer, central microprocessor, and serial ports I, serial ports II, LCD link block, random access memory, Nor Flash module, programming button, power supply, JTAG module, LED lamp, hummer are connected with central microprocessor respectively; The other end of serial ports I, serial ports II is connected with PC respectively; The other end of LCD link block connects LCD display.
Central microprocessor adopts the LPC2220 model.LPC2220 is based on 16/32 ARM7TDMI-S that supports real-time simulation and embedded tracking
TMThe driving platform that erects on the microcontroller basis of CPU has 64KB static RAM in the sheet.Nor Flash module in system as the data segment storage area of system-program code section and curing.Have the application of strict control can use 16 Thumb patterns that code size is reduced to code size and surpass 30%, and the loss of performance is very little.Native system has been developed the each several part function of LPC2220 to the utmost, and by configuration bus, (universal input and output) realize multidata input and output to GPIO.Because the built-in serial communication interface of wide region also is very suitable for communication gate, protocol converter, embedded soft modern and other various types of application.
By corresponding memory is set, realize initialization.Have only the value that correctly is provided with storer, the data in the LPC2220 chip ability access external memory are so initialization should be placed on the loading code the inside of LPC2220.The LPC2220 maximum frequency of oscillation can reach 60MHz, so when it being carried out the external memory storage expansion, should be noted that and select the suitable external memory chip of operating rate.
Serial ports I, serial ports II all adopt 9 pin RS-232 serial ports.LCD display adopts the HG1926419C model.The programming button is provided with 16.
Realize that each function of serial ports at first wants the linkage function pin, the pin link block can make selected pin have function more than 1.Config memory control multi-way switch connects peripheral hardware in pin and the sheet.Being located at activation and any related interrupts outward enables must be connected to suitable pin before.If any peripheral functionality that enables is not mapped to relevant pin, then be considered to invalid.
After master routine enters the subcycle program,, enter corresponding serial ports subroutine from the different numeral of serial ports input.Function is by the PC input character, by serial ports character string is transferred to central microprocessor, again from central microprocessor with the character string that receives, send it back PC again by serial ports.
The control signal that central microprocessor sends is divided into address code and controlled quentity controlled variable two parts, and address code is used for addressing, promptly connects the circuit that needs control, determines the kind of control; The amount that controlled quentity controlled variable determines the classification (as contrast, brightness etc.) of this adjustment and needs to adjust.Like this, though each control circuit hang on same the bus, independently of one another, uncorrelated mutually.
The present invention can utilize the programmable features of this platform, on the basis that does not change hardware, carries out special-purpose embedded software developing.Utilize embedded development platform, realize the functions such as encoding and decoding, storage, transmission and demonstration to signal, LCD display can satisfy the high definition display requirement, greatly reduces system development costs, has high performance price ratio.
This platform is widely used in Industry Control, Medical Devices, access control, POS machine, communication gate, embedded soft moderm etc., has improved the extensibility and the adaptability of system greatly.
Description of drawings
Fig. 1 is a modular structure synoptic diagram of the present invention.
Embodiment
Native system comprises serial ports I, serial ports II, LCD link block, random access memory, Nor Flash module, programming button, power supply, JTAG module, LED lamp, hummer, central microprocessor, and serial ports I, serial ports II, LCD link block, random access memory, Nor Flash module, programming button, power supply, JTAG module, LED lamp, hummer are connected with central microprocessor respectively; The other end of serial ports I, serial ports II is connected with PC respectively; The other end of LCD link block connects LCD display.
Central microprocessor adopts the LPC2220 model.Serial ports I, serial ports II all adopt 9 pin RS-232 serial ports.LCD display adopts the HG1926419C model.The programming button is provided with 16.
After hyper terminal is finished in setting, use serial port connecting wire to connect the PC serial ports of setting and the serial ports of central microprocessor, central microprocessor is powered on, see whether hyper terminal has type information, if having, then the expression configuration is correct.
Enter the serial ports program at interface, PC sends character string by serial ports to central microprocessor, and central microprocessor sends it back PC by serial ports again with the character string that receives.
Enter LED and circulate behind the bright program prompts interface, LED carries out light on and off by 16 systems, and from 1 to 16 is a circulation.Withdraw from this subroutine, all LED lamps extinguish.Has certain time-delay when withdrawing from, because only after a whole circulation finishes, just can withdraw from.
After entering LED light on and off program prompts interface, control the light on and off of LED lamp by button.Corresponding corresponding 16 bit value of each button are carried out light on and off by 16 systems.Withdraw from this subroutine, all LED lamps extinguish.
Enter the LCD display program, LCD display is bright, shows corresponding Chinese character, numeral, letter etc.Withdraw from this subroutine, LCD display is gone out.
The programming button is totally 16 keys.For recursive subroutine of adding is made a return journey and is trembled in the code.Backspace subroutine behind the acquisition key assignments is converted to corresponding LED set value with key assignments, and the LED lamp is lighted.Nested a character receives program in the whole procedure, does not receive when program and returns master routine when exiting command.
After one-touch judge to finish, call a serial ports and receive the character string subroutine, do not receive when program and extinguish all LED lamps when exiting command, finish the KEY subroutine, return master routine.
LCD display is the 192*64 point, laterally is divided into the zone that 3 64*64 are ordered in logic, and these three zones are controlled by control chip respectively, and the display buffer in three zones also is independently, can control respectively.
According to wanting the data presented difference, data code is also different, uses the code extracting tool, extracts the data code of corresponding Chinese character or picture, and code is imported into as parameter, has promptly finished the input of Chinese character.
After the Chinese character input is finished, can jump out this subroutine in order to make program, at the end of LCD program, called serial ports and read character string function, read the end mark of subroutine by serial ports.When receiving end mark, program withdraws from the LCD subroutine, returns master routine.
Use every preparation of serial ports all to carry out, next will use serial ports.Rebound principal function from serial ports initialization function sends to PC with character, can realize the demonstration of information.
Claims (5)
1. experimental provision based on embedded development platform, it is characterized in that, comprise serial ports I, serial ports II, LCD link block, random access memory, Nor Flash module, programming button, power supply, JTAG module, LED lamp, hummer, central microprocessor, serial ports I, serial ports II, LCD link block, random access memory, Nor Flash module, programming button, power supply, JTAG module, LED lamp, hummer are connected with central microprocessor respectively; The other end of serial ports I, serial ports II is connected with PC respectively; The other end of LCD link block connects LCD display.
2. the experimental provision based on embedded development platform according to claim 1 is characterized in that, central microprocessor adopts the LPC2220 model.
3. the experimental provision based on embedded development platform according to claim 2 is characterized in that, serial ports I, serial ports II all adopt 9 pin RS-232 serial ports.
4. the experimental provision based on embedded development platform according to claim 2 is characterized in that, LCD display adopts the HG1926419C model.
5. the experimental provision based on embedded development platform according to claim 3 is characterized in that, the programming button is provided with 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010182522XA CN102254469A (en) | 2010-05-17 | 2010-05-17 | Experimental device based on embedded development platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010182522XA CN102254469A (en) | 2010-05-17 | 2010-05-17 | Experimental device based on embedded development platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102254469A true CN102254469A (en) | 2011-11-23 |
Family
ID=44981701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010182522XA Pending CN102254469A (en) | 2010-05-17 | 2010-05-17 | Experimental device based on embedded development platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102254469A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542885A (en) * | 2010-12-31 | 2012-07-04 | 青岛海尔软件有限公司 | Embedded development platform-based bootloaer device |
| CN105486288A (en) * | 2015-11-30 | 2016-04-13 | 上海电机学院 | Machine-vision-based vision servo alignment system |
| CN108184219A (en) * | 2018-02-23 | 2018-06-19 | 绍兴心越科技有限公司 | A kind of 6LoWPAN wireless sensor networks research/development platform |
| CN109243252A (en) * | 2018-09-30 | 2019-01-18 | 湖北职业技术学院 | A kind of embedded development experimental system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2621318Y (en) * | 2003-06-18 | 2004-06-23 | 北京博创兴业科技有限公司 | Inserted system teaching instrument |
| CN1661586A (en) * | 2005-01-21 | 2005-08-31 | 长沙科瑞捷机电技术有限公司 | PC104 embedded type computer based on ARM |
| CN201751923U (en) * | 2010-05-17 | 2011-02-23 | 中国海洋大学 | Experimental apparatus based on embedded development platform |
-
2010
- 2010-05-17 CN CN201010182522XA patent/CN102254469A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2621318Y (en) * | 2003-06-18 | 2004-06-23 | 北京博创兴业科技有限公司 | Inserted system teaching instrument |
| CN1661586A (en) * | 2005-01-21 | 2005-08-31 | 长沙科瑞捷机电技术有限公司 | PC104 embedded type computer based on ARM |
| CN201751923U (en) * | 2010-05-17 | 2011-02-23 | 中国海洋大学 | Experimental apparatus based on embedded development platform |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542885A (en) * | 2010-12-31 | 2012-07-04 | 青岛海尔软件有限公司 | Embedded development platform-based bootloaer device |
| CN105486288A (en) * | 2015-11-30 | 2016-04-13 | 上海电机学院 | Machine-vision-based vision servo alignment system |
| CN108184219A (en) * | 2018-02-23 | 2018-06-19 | 绍兴心越科技有限公司 | A kind of 6LoWPAN wireless sensor networks research/development platform |
| CN109243252A (en) * | 2018-09-30 | 2019-01-18 | 湖北职业技术学院 | A kind of embedded development experimental system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101208681B (en) | Communication system | |
| CN204288623U (en) | A kind of multifunction electronic experiment integrated board | |
| CN100566278C (en) | Slave unit in the communication system of using serial data transfer bus | |
| CN110347625B (en) | Method, device and equipment for switching GPU topology through wireless cable | |
| CN104504974A (en) | Experiment instrument for designing and developing single-chip microcomputer | |
| CN105513472A (en) | Multicore single-chip microcomputer embedded teaching experiment platform | |
| CN102254469A (en) | Experimental device based on embedded development platform | |
| Bates | Programming 8-bit PIC microcontrollers in C: with interactive hardware simulation | |
| CN105335548A (en) | MCU simulation method for ICE | |
| CN201751923U (en) | Experimental apparatus based on embedded development platform | |
| CN100533424C (en) | Single line transmission interface and single byte operational keyboard display module | |
| CN103793263A (en) | DMA transaction-level modeling method based on Power PC processor | |
| CN102542872A (en) | Driving system based on embedded development platform | |
| CN103594012A (en) | Practical training board for single-chip microcomputer teaching | |
| CN110796939A (en) | Programming learning development board with unified extended interface | |
| CN101893856B (en) | Relay board and control method and device thereof | |
| CN105068962A (en) | I2C controller access method and I2C controller access system | |
| CN108733597B (en) | Control system and control method for controlling memory module | |
| CN106406154B (en) | debugging system and control method thereof | |
| CN202042095U (en) | Driving system based on embedded development platform | |
| US20070239976A1 (en) | Message displaying system and method | |
| CN202584509U (en) | Freescale HCS12 series one-chip microcomputer teaching experimental instrument | |
| CN203799373U (en) | Difunctional USB equipment | |
| CN201057555Y (en) | Improved mainboard condition detecting system | |
| CN202003561U (en) | Bootloaer device based on embedded developing platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111123 |