CN203706530U - One-chip microcomputer development board - Google Patents

Abstract

The utility model discloses a one-chip microcomputer development board comprising a one-chip microcomputer, a running water lamp module, a nixie tube display module, a temperature sensor module, a digital-analog/analog-to-digital conversion module, a USB download module, a power supply control module, a keyboard module, a serial port module, a buzzer module, an external program memory module and an external expansion module; the development board combines the normal running water lamp, the nixie tube display, the matrix keyboard, an A/D and D/A converter, the buzzer, the temperature sensor, series port communication, the external program memory and the USB download module; the development board provides an ISP download interface and a 12864 liquid crystal interface; all elements are packaged by pasters, thereby effectively saving space; the development board is high in performance cost, full in functions, and is suitable for a one-chip microcomputer learner to fast master all abilities of the one-chip microcomputer.

Description

A kind of microcomputer development plate

Technical field

The utility model relates to a kind of microcomputer development plate.

Background technology

Single-chip microcomputer is widely used in various Industry Control, the students of universities are owing to lacking practical knowledge, always feel that knowwhy is comparatively abstract, study is got up very difficult, and how allowing student at school grasp microcomputer development technical ability according to institute's theory is as early as possible the task of top priority of imparting knowledge to students at present.

Utility model content

In order to address the above problem, the purpose of this utility model is to provide a kind of single chip computer teaching exploitation brassboard, this device is connected whole hardware used microcomputer development with the I/O interface of single-chip microcomputer, be connected with computing machine and can carry out the experiment of microcomputer development technical ability by serial communication interface, this device is placed in classroom, teacher operates and theory explaination in conjunction with actual hardware, and can allow each student progressively carry out practical operation, go wrong and correct at any time, thereby can deepen theory study and understanding by practical operation, and then can allow student grasp microcomputer development technical ability according to institute's theory very soon.

A kind of microcomputer development plate, single-chip microcomputer, running lamp module, charactron display module, temperature sensor module, digital-to-analogue/analog-to-digital conversion module, USB download module, energy supply control module, Keysheet module, serial port module, hummer module, external program storage module and external expansion module;

Described external expansion module comprises ISP download interface module, 12864 liquid crystal interface modules and 1602 liquid crystal interface modules;

Described running lamp module, charactron display module, temperature sensor module, digital-to-analogue/analog-to-digital conversion module, USB download module, energy supply control module, Keysheet module, serial port module, hummer module, external program storage module, ISP download interface module, 12864 liquid crystal interface modules, 1602 liquid crystal interface modules and external expansion module are connected with each I/O interface of single-chip microcomputer respectively.

Beneficial effect

The utility model provides a kind of microcomputer development plate, comprises single-chip microcomputer, running lamp module, charactron display module, temperature sensor module, digital-to-analogue/analog-to-digital conversion module, USB download module, energy supply control module, Keysheet module, serial port module, hummer module, external program storage module and external expansion module; This development board is integrated conventional running lamp, charactron demonstration, matrix keyboard, A/D and D/A conversion, hummer, temperature sensor, serial communication, external program storage and USB download module, ISP download interface and 12864 liquid crystal interfaces are provided, all elements adopt paster encapsulation, effectively save space, cost performance is high, function is complete to be one, and applicable single-chip learning person grasps every technical ability of single-chip microcomputer fast.

Brief description of the drawings

Fig. 1 is structured flowchart of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described further.

As shown in Figure 1, a kind of microcomputer development plate, single-chip microcomputer, running lamp module, charactron display module, temperature sensor module, digital-to-analogue/analog-to-digital conversion module, USB download module, energy supply control module, Keysheet module, serial port module, hummer module, external program storage module and external expansion module;

Described external expansion module comprises ISP download interface module, 12864 liquid crystal interface modules and 1602 liquid crystal interface modules;

Described running lamp module, charactron display module, temperature sensor module, digital-to-analogue/analog-to-digital conversion module, USB download module, energy supply control module, Keysheet module, serial port module, hummer module, external program storage module, ISP download interface module, 12864 liquid crystal interface modules, 1602 liquid crystal interface modules and external expansion module are connected with each I/O interface of single-chip microcomputer respectively.

Described running lamp module is made up of 8 SMD LED lamps and a slice 74HC573, is controlled by single-chip microcomputer P1 mouth;

Described charactron display module is made up of 6 charactrons and two 74HC573, by P0 mouth control section and position, the latch of two other I/O mouth control 74HC573;

Described Keysheet module is made up of 4X4 matrix keyboard and 4 stand-alone keypad, is controlled by P3 mouth;

Described serial communication modular is by MAX232 chip and RS232 interface, and 4 104 electric capacity form, and MAX232 is converted into TTL signal by RS232 level and is transferred to single-chip microcomputer, realizes single-chip microcomputer and PERCOM peripheral communication;

Described external program storage, in the time of CPU power down, can store last performed program;

Described hummer is by the buzzing of single-chip microcomputer P2.6 pin output signal control hummer;

Described temperature sensor module adopts DS18B20 temperature sensor, and DS18B20 is converted to after digital signal the temperature signal detecting by unibus and single chip communication, after processing, can on charactron or liquid crystal, show.

Claims (1)

1. a microcomputer development plate, it is characterized in that, comprise single-chip microcomputer, running lamp module, charactron display module, temperature sensor module, digital-to-analogue/analog-to-digital conversion module, USB download module, energy supply control module, Keysheet module, serial port module, hummer module, external program storage module and external expansion module;

Described external expansion module comprises ISP download interface module, 12864 liquid crystal interface modules and 1602 liquid crystal interface modules;

Described running lamp module, charactron display module, temperature sensor module, digital-to-analogue/analog-to-digital conversion module, USB download module, energy supply control module, Keysheet module, serial port module, hummer module, external program storage module, ISP download interface module, 12864 liquid crystal interface modules, 1602 liquid crystal interface modules and external expansion module are connected with each I/O interface of single-chip microcomputer respectively.