CN202584509U - Freescale HCS12 series one-chip microcomputer teaching experimental instrument - Google Patents
Freescale HCS12 series one-chip microcomputer teaching experimental instrument Download PDFInfo
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- CN202584509U CN202584509U CN 201120363159 CN201120363159U CN202584509U CN 202584509 U CN202584509 U CN 202584509U CN 201120363159 CN201120363159 CN 201120363159 CN 201120363159 U CN201120363159 U CN 201120363159U CN 202584509 U CN202584509 U CN 202584509U
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- freescale hcs12
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Abstract
The utility model relates to a teaching experimental instrument, especially to a Freescale HCS12 series one-chip microcomputer teaching experimental instrument which comprises a core plate, a general expansion plate and a debugging adapter head. The core plate is mainly composed of Freescale HCS12 series master control chips; the general expansion plate is mainly composed of a peripheral interface circuit of a Freescale HCS12 series one-chip microcomputer; the debugging adapter head is composed of M68H908JB8 master control chips. The debugging adapter head can be connected with a USB of a personal computer and then can directly perform on-line programming under Codewarrior environments of the personal computer to form a comprehensive experimental instrument integrating an experimental instrument, editing, compiling, downloading and debugging into a whole. The experimental instrument employs a three-layer structure design, possesses strong versatility and flexibility, can complete interface and communication experiments of more than 20 one-chip microcomputers and matches with abundant programming examples, which is in favor of better mastering principles and exploitation technique of the Freescale HCS12 series one-chip microcomputer for experimenters and raising operation ability and innovation capability of students.
Description
Technical field
The utility model relates to a kind of teaching and experiment equipment, relates in particular to a kind of Freescale HCS12 series monolithic teaching experimental.
Background technology
Traditional Embedded Application development approach mainly is to use the ruuning situation of MCU in the emulator simulated target system; Hope to reach under the situation of goal systems hardware prepattern and making sheet still, hardware, the software of the debug target system of going ahead of the rest are for goal systems is developed; But; Be difficult to realize 100% real-time simulation in some cases, some function is very normal with emulator debug the time, can not trouble-free operation and arrived real application systems.Simultaneously, its some debug function of traditional emulation mode is only applicable to the beginner, and for having certain development Experience and having the developer that the general utility functions module accumulates, has often increased the development time, is unfavorable for the marketing of electronic product.
The many singlechip experiment apparatus that use in China colleges and universities at present generally all are made in main control chip and peripheral interface on the plate, though easy to use like this, its shortcoming also is tangible.Mainly show: MCU chip pin that 1. uses and hardware interface locking, be not easy to the I/O pin and change flexibly, in a single day main control chip or part peripheral module damage, and then whole experiment instrument is scrapped; 2. since MCU chip Fixed Design on a plate, the user can not upgrade and upgrading employed MCU chip, has limited the user and chip has been selected free; 3.. general experiment instrument adopts traditional interface in design, volume is bigger, uses the external power supply power supply, is not easy to the student and uses at machine room, the autonomous learning that also is not easy to the time after school with carry.
For overcoming the place of above-mentioned deficiency; Therefore invented a kind of Freescale HCS12 series monolithic teaching experimental; This experiment instrument adopts the three-decker design to have very strong versatility and dirigibility, and can accomplish more than 20 interface microcontroller and the experiment of communicating by letter, and supporting abundant programming instance; Help principle and development technique thereof that the experimenter grasps Freescale HCS12 series monolithic better, improve students'ability for practice and innovation ability.
Summary of the invention
The purpose of the utility model is exactly to provide one to be connected with PC through the BDM mode and to carry out that program is downloaded and the experimental teaching unit of debugging to the experimenter.This experiment instrument adopts the three-decker design, thereby has versatility and dirigibility.
The technical scheme that the utility model adopts is: a kind of Freescale HCS12 series monolithic teaching experimental; Comprise core board, general extension plate and debugging adapter head three parts composition; Its core board mainly is made up of Freescale HCS12 series main control chip; The general extension plate mainly is made up of the peripheral interface circuit of Freescale HCS12 series monolithic, and the debugging adapter head mainly is made up of main control chip M68HC908JB8.
Specifically, Freescale HCS12 series main control chip mainly comprises MC9S12DG128, MC9S12UF32 and MC9S12NE64; The peripheral interface circuit of Freescale HCS12 series monolithic mainly comprises diode lampet, 4 * 4 keyboards, 8 groups of switches, simulation pot, hummer, 8 sections charactrons, LCD character liquid crystal, infrared sensor, light sensor, heat sensitive sensor, serial port, USB, Ethernet interface, CAN, I
2C and SPI.
This experiment instrument can be accomplished the control of diode lampet, keyboard, charactron demonstration, liquid crystal display, serial communication, hummer, infrared sensor, light sensor, heat sensitive sensor, usb communication, ethernet communication, CAN bus, I
2C and the experiment of SPI peripheral interface; Need only during experiment the adaptive first end interface of the debugging of this experiment instrument is linked to each other with the USB mouth of PC; After the BDM of other end interface and core board downloads mouth and links to each other; Under the Codewarrior environment, write experiment instrument peripheral circuit driver; Directly after editor, the compiling, can carry out online download and debugging with the BDM mode through the debugging adapter head.
The advantage of the utility model is:
(1) versatility is supported the online download and the debugging of present Freescale HCS12 series monolithic;
(2) expandability, for the trendy single-chip microcomputer of Freescale HCS12 series, can the Rapid Realization support;
(3) dirigibility, hardware system is flexible, and core board is made in apolegamy according to actual needs or oneself, and replacing and upgrading are convenient;
(4) compatibility, compatible Codewarrior IDE.On this development environment, can realize functions such as source program editing, compiling, download, debugging, abundant programming instance is provided simultaneously, convenient study and exploitation;
(5) reliability through to the data detection after the operations such as wiping, write, has guaranteed that the debugging adapter head is downloaded and the correctness of debugging operations.
Description of drawings
Fig. 1 is the general extension plate structure synoptic diagram of the utility model.
Fig. 2 is the core board structural representation of the utility model.
Fig. 3 is the BDM debugging adapter head structural representation of the utility model.
Embodiment
A kind of Freescale HCS12 series monolithic teaching experimental is made up of core board, general extension plate and debugging adapter head three parts.The debugging adapter head mainly is made up of main control chip M68HC908JB8; The debugging adapter head links to each other with core board square opening USB socket through BDM mode (i.e. four lines: RST, BDM, VCC and GND), and the debugging adapter head links to each other with the USB mouth of PC through the mode of USB1.1.
As shown in Figure 1; Be general extension plate structure synoptic diagram, the general extension plate is mainly by LED lamp, 4 * 4 keyboards, 8 groups of switches, simulation potentiometer, hummer, 8 sections charactrons, LCD, infrared sensor, light sensor, heat sensitive sensor, serial port, USB, CAN, I
2C and SPI interface constitute.8 diode lampets are any 8 the I/O mouths that manually are wired to the core board socket.LCD character liquid crystal module is selected LCM1602 for use; The 4*4 keyboard is the rank scanning formula; 4*4 keyboard and LCD are equipped with two sockets, and one is the automatic connecting socket, and the corresponding I/O mouth with acp chip connects; Another is manual line socket, needs user oneself manually to link to each other with any I/O mouth of core board socket.The infrared sensor module is selected infrared one 1838 and infrared transmitting tube for use; The light sensor module is selected the CDS photo-resistor for use; The heat sensitive sensor module is selected the 16D-11 thermal resistor for use; Infrared sensor, light sensor, heat sensitive sensor are all reserved corresponding sampled point, and link to each other with the AD mouth of acp chip.USB, Ethernet interface, CAN, I2C and SPI module are the inner integrated interface of Freescale HCS12 series monolithic.
As shown in Figure 2, be the core board structural representation, the HCS12 family chip that the main control chip on the core board can be downloaded for the support BDM of Freescale company is like MC9S12DG128, MC9S12UF32 and MC9S12NE64.For the stability of testing, the external crystal-controlled oscillation module on the core board is selected active crystal oscillator for use, and frequency can be selected 4MHz～24MHz for use.Experiment instrument directly adopts the square opening USB on the core board that 5V is provided working power, and for the security and the convenience that guarantee to test, the VCC that square opening USB provides re-uses after connecing fuse and power switch.
As shown in Figure 3, be BDM debugging adapter head structural representation, this debugging adapter head mainly is made up of M68HC908JB8 main control chip circuit, cooperates BDM driver realization program to download and debug function.PC side uses Codewarrior IDE to link to each other with the debugging adapter head with the USB1.1 mode; Communicate by letter with the BDM mode between debugging adapter head and the Target Board.
The utility model can carry out that LED lamp (light emitting diode), matrix press-key, switching value input, simulating signal input, warning and vocal music, charactron demonstration, 1602 liquid crystal displays, SCI communicate by letter, SPI communicates by letter, infrared reception, infrared emission, luminance brightness detection, temperature detection, I
2The C bus communication, based on the USB2.0 of MC9S12UF32 communication, drive and communication experiment based on the CAN bus communication of MC9S12DG128 with based on the peripheral interface of more than 20 the Freescale HCS12 series monolithics such as ethernet communication of MC9S12NE64.
Claims (3)
1. Freescale HCS12 series monolithic teaching experimental; Comprise core board, general extension plate and debugging adapter head three parts composition; Its core board mainly is made up of Freescale HCS12 series main control chip; The general extension plate mainly is made up of the peripheral interface circuit of Freescale HCS12 series monolithic, and the debugging adapter head mainly is made up of main control chip M68HC908JB8.
2. a kind of Freescale HCS12 series monolithic teaching experimental according to claim 1 is characterized in that: Freescale HCS12 series main control chip mainly comprises MC9S12DG128, MC9S12UF32 and MC9S12NE64; The peripheral interface circuit of Freescale HCS12 series monolithic mainly comprises diode lampet, 4 * 4 keyboards, 8 groups of switches, simulation pot, hummer, 8 sections charactrons, LCD character liquid crystal, infrared sensor, light sensor, heat sensitive sensor, serial port, USB, Ethernet interface, CAN, I2C and SPI.
3. a kind of Freescale HCS12 series monolithic teaching experimental according to claim 2; It is characterized in that: LCD character liquid crystal module is selected LCM1602 for use; The infrared sensor module is selected infrared one 1838 and infrared transmitting tube for use; The light sensor module is selected the CDS photo-resistor for use, and the heat sensitive sensor module is selected the 16D-11 thermal resistor for use, and USB, Ethernet interface, CAN, I2C, SPI module are the inner integrated interface of Freescale HCS12 series monolithic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120363159 CN202584509U (en) | 2011-09-26 | 2011-09-26 | Freescale HCS12 series one-chip microcomputer teaching experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120363159 CN202584509U (en) | 2011-09-26 | 2011-09-26 | Freescale HCS12 series one-chip microcomputer teaching experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202584509U true CN202584509U (en) | 2012-12-05 |
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ID=47253897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120363159 Expired - Fee Related CN202584509U (en) | 2011-09-26 | 2011-09-26 | Freescale HCS12 series one-chip microcomputer teaching experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202584509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509391A (en) * | 2018-11-19 | 2019-03-22 | 徐州工程学院 | A kind of opening modularization EDA teaching experimental |
| CN113238081A (en) * | 2021-05-24 | 2021-08-10 | 苏州大学 | Intelligent electric meter terminal |
-
2011
- 2011-09-26 CN CN 201120363159 patent/CN202584509U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509391A (en) * | 2018-11-19 | 2019-03-22 | 徐州工程学院 | A kind of opening modularization EDA teaching experimental |
| CN113238081A (en) * | 2021-05-24 | 2021-08-10 | 苏州大学 | Intelligent electric meter terminal |
| WO2022247089A1 (en) * | 2021-05-24 | 2022-12-01 | 苏州大学 | Smart electricity meter terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121205 Termination date: 20140926 |
|
| EXPY | Termination of patent right or utility model |