CN202454138U

CN202454138U - Learning machine with single chip microcomputer

Info

Publication number: CN202454138U
Application number: CN2012200492341U
Authority: CN
Inventors: 张玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-16
Filing date: 2012-02-16
Publication date: 2012-09-26
Anticipated expiration: 2022-02-16

Abstract

The utility model discloses a learning machine with a single chip microcomputer. The learning machine comprises a main board and a plurality of external device modules, wherein the single chip microcomputer, a port unit and a working power supply are arranged on the main board. Each connection pin of the port unit is respectively connected with a corresponding single chip microcomputer programmable input/outlet (I/O) port and an I/O port of the working power supply, the working power supply is connected with a single chip microcomputer power supply lead pin, and the plurality of external device modules can be connected with the port unit through flat cables. The port unit connected with the single chip microcomputer programmable I/O ports and the I/O port of the working power supply is arranged on the main board so that users can build any peripheral circuit or application circuit based on the single chip microcomputer as required conveniently, and the learning machine with the single chip microcomputer can be applied to many experimental projects and has good expansibility.

Description

A kind of single-chip microcomputer learning machine

Technical field

The utility model relates to a kind of single-chip microcomputer study experimental provision, relates in particular to a kind of single-chip microcomputer learning machine.

Background technology

Traditional single-chip microcomputer learning machine is the platform of core with single single-chip microcomputer just; And the peripheral circuit of single-chip microcomputer is welded on the PCB circuit board; The function of I/O interface has been carried out the qualification of pressureization; The experimental project that can do is limited, can't expand, and causes the user can't build experimental circuit as required.

Chinese patent publication number CN2582062; Open day on October 22nd, 2003; The name of utility model is called the multifunctional single-sheet learning machine; This application case discloses a kind of multifunctional single-sheet learning machine; It comprises power circuit, power interruption circuit, digital display circuit, speaker circuit, Automatic Program commutation circuit, single-chip microcomputer, exterior storage circuit, memory write holding circuit, infrared remote controller, keyboard input circuit, RS232 telecommunication circuit and RS485 telecommunication circuit; Single-chip microcomputer connects power circuit, digital display circuit, speaker circuit, external memory storage circuit, memory write holding circuit respectively, also is connected with Automatic Program commutation circuit, keyboard input circuit, infrared remote controller, RS232 and RS485 telecommunication circuit on the single-chip microcomputer.Its weak point is, chip, interface and peripheral circuit on this multifunctional single-sheet learning machine all are fixedly connected, and the experimental project that can do is limited, can't expand, and causes the user can't build new experimental circuit as required.

The utility model content

The purpose of the utility model is that the chip, interface and the peripheral circuit that overcome on traditional single-chip microcomputer learning machine all are fixedly connected; The experimental project that can do is limited; The technical matters that can't expand; A kind of single-chip microcomputer learning machine is provided, and it is provided with the interface unit that links to each other with the input/output port of single-chip microcomputer programmable I/O mouth and working power on mainboard, is convenient to the user and builds any SCM Based peripheral circuit or application circuit as required; The experimental project that can do is many, has favorable expansibility.

In order to address the above problem, the utility model adopts following technical scheme to be achieved:

A kind of single-chip microcomputer learning machine of the utility model; Comprise mainboard and several external unit modules; Said mainboard is provided with single-chip microcomputer, interface unit and working power; Each pin of said interface unit links to each other with the corresponding single-chip microcomputer programmable I/O mouth and the input/output port of working power respectively, and said working power links to each other with the microcontroller power supply pin, and said several external unit modules link to each other with interface unit through winding displacement.

In the present technique scheme, the programmable I of single-chip microcomputer/O mouth is not fixedly connected with the external unit module, and the user can select existing external unit module as required, and is connected to the interface unit on the mainboard through winding displacement.Each pin of interface unit links to each other with the corresponding single-chip microcomputer programmable I/O mouth and the input/output port of working power respectively, thereby makes the monolithic function carry out data transmission through interface unit and external unit module, and working power is the external unit module for power supply.Simultaneously, the user also can build any peripheral circuit or application circuit based on single-chip microcomputer on the mainboard voluntarily, and is connected to the interface unit on the mainboard through winding displacement, carries out corresponding single chip computer experiment.

As preferably, said mainboard is provided with RS232 interface and level switch module, and said RS232 interface links to each other with the serial line interface of single-chip microcomputer through level switch module.Single-chip microcomputer on the mainboard can link to each other with computer through the RS232 data line, thereby can carry out the programming operation to single-chip microcomputer.

As preferably, said mainboard is provided with USB interface and level switch module, and said USB interface links to each other with the serial line interface of single-chip microcomputer through level switch module.Single-chip microcomputer on the mainboard can link to each other with computer through the usb data line, thereby can carry out the programming operation to single-chip microcomputer.

As preferably, said several external unit modules comprise 7 sections charactron display modules, LCD MODULE, key-press module, digital dock module, infrared data transport module and hummer module.Provide study external unit module commonly used, supply the user to select to use.

As preferably, said mainboard is provided with power light, and said power light links to each other with working power, and whether power light indication working power opens.

As preferably, said single-chip microcomputer is the S51 series monolithic.

As preferably, said interface unit is four groups of row's pins, and every group of row's pin links to each other with the corresponding single-chip microcomputer programmable I/O mouth and the input/output port of working power respectively.Every group of row's pin has nine pins, links to each other with the input/output port of working power and seven programmable Is/O mouth of single-chip microcomputer respectively.

The beneficial effect of the utility model is: (1) is provided with the interface unit that links to each other with the input/output port of single-chip microcomputer programmable I/O mouth and working power on mainboard; Be convenient to the user and build any SCM Based peripheral circuit or application circuit as required; The experimental project that can do is many, has favorable expansibility.(2) through RS232 data line or usb data line mainboard is linked to each other with computer, thereby can directly carry out the programming operation single-chip microcomputer.

Description of drawings

Fig. 1 is a kind of circuit theory syndeton block diagram of the utility model.

Among the figure: 1, mainboard, 2, the external unit module, 3, single-chip microcomputer, 4, interface unit, 5, working power, 6, winding displacement, 7, the RS232 interface, 8, USB interface, 9, level switch module, 10, power light, 11, row's pin.

Embodiment

Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.

Embodiment: a kind of single-chip microcomputer learning machine of present embodiment; As shown in Figure 1; Comprise mainboard 1 and six external unit modules 2, single-chip microcomputer 3, interface unit 4, working power 5, RS232 interface 7, USB interface 8, level switch module 9 and power light 10 are installed on the mainboard 1, single-chip microcomputer 3 is the S51 series monolithic; RS232 interface 7 links to each other with the serial line interface of single-chip microcomputer 3 through level switch module 9; USB interface 8 links to each other with the serial line interface of single-chip microcomputer 3 through level switch module 9, and power light 10 links to each other with working power 5, and working power 5 links to each other with single-chip microcomputer 3 power pins; Six external unit modules 2 are respectively 7 sections charactron display modules, LCD MODULE, key-press module, digital dock module, infrared data transport module and hummer module; Six external unit modules 2 all can link to each other with interface unit 4 through winding displacement 6, and interface unit 4 is four groups of row's pins 11, and every group of row's pin 11 links to each other with the input/output port of working power 5 with corresponding single-chip microcomputer 3 programmable Is/O mouth respectively.

The programmable I of single-chip microcomputer 3/O mouth is not fixedly connected with six external unit modules 2, and the user can select the external unit module 2 that provides as required, and is connected to the interface unit 4 on the mainboard 1 through winding displacement 6.Interface unit 4 is four groups of row's pins 11; Every group of row's pin 11 has nine pins; Link to each other with the input/output port of working power 5 and seven programmable Is/O mouth of single-chip microcomputer 3 respectively; Thereby make single-chip microcomputer 3 carry out data transmission through interface unit 4 and external unit module 2, working power 5 is 2 power supplies of external unit module.Simultaneously, the user also can build any peripheral circuit or application circuit based on the single-chip microcomputer on the mainboard 13 voluntarily, and is connected to the interface unit 4 on the mainboard 1 through winding displacement 6, carries out corresponding single chip computer experiment.

Whether the power light 10 indication working powers 5 on the mainboard 1 open.The user can use the RS232 data line that the RS232 interface of RS232 interface on the mainboard 1 and computer is linked to each other, and makes single-chip microcomputer 3 carry out serial communication with computer, can directly carry out the programming operation to single-chip microcomputer 3; The user can use the usb data line that the USB interface of USB interface on the mainboard 1 and computer is linked to each other, and makes single-chip microcomputer 3 carry out serial communication with computer, can directly carry out the programming operation to single-chip microcomputer 3.

Claims

1. single-chip microcomputer learning machine; It is characterized in that: comprise mainboard (1) and several external unit modules (2); Said mainboard (1) is provided with single-chip microcomputer (3), interface unit (4) and working power (5); Each pin of said interface unit (4) links to each other with the input/output port of working power (5) with corresponding single-chip microcomputer (3) programmable I/O mouth respectively; Said working power (5) links to each other with single-chip microcomputer (3) power pins, and said several external unit modules (2) link to each other with interface unit (4) through winding displacement (6).

2. a kind of single-chip microcomputer learning machine according to claim 1; It is characterized in that: said mainboard (1) is provided with RS232 interface (7) and level switch module (9), and said RS232 interface (7) links to each other with the serial line interface of single-chip microcomputer (3) through level switch module (9).

3. a kind of single-chip microcomputer learning machine according to claim 1; It is characterized in that: said mainboard (1) is provided with USB interface (8) and level switch module (9), and said USB interface (8) links to each other with the serial line interface of single-chip microcomputer (3) through level switch module (9).

4. according to claim 1 or 2 or 3 described a kind of single-chip microcomputer learning machines, it is characterized in that: said several external unit modules (2) comprise 7 sections charactron display modules, LCD MODULE, key-press module, digital dock module, infrared data transport module and hummer module.

5. according to claim 1 or 2 or 3 described a kind of single-chip microcomputer learning machines, it is characterized in that: said mainboard (1) is provided with power light (10), and said power light (10) links to each other with working power (5).

6. according to claim 1 or 2 or 3 described a kind of single-chip microcomputer learning machines, it is characterized in that: said single-chip microcomputer (3) is the S51 series monolithic.

7. according to claim 1 or 2 or 3 described a kind of single-chip microcomputer learning machines; It is characterized in that: said interface unit (4) is four groups of row's pins (11), and every group of row's pin (11) links to each other with the input/output port of working power (5) with corresponding single-chip microcomputer (3) programmable I/O mouth respectively.