CN104317225A - Microcontroller - Google Patents

Abstract

The invention discloses a microcontroller, and relates to the electric and automation filed. The microcontroller comprises a single chip computer, wherein a sixth lead foot of the single chip computer is a horizontal angle motor work/ stop control signal end, a seventh lead foot of the single chip computer is a horizontal motor direction control signal end, an eighth lead foot of the single chip computer is a horizontal angle motor chip select signal, a twelfth lead foot FREE 1 of the single chip computer is an elevation angle motor work/ stop control signal end, an eleventh lead foot of the single chip computer is an elevation angle motor direction control signal end, and a ninth lead foot of the single chip computer is an elevation angle motor chip select signal end. The microcontroller outputs corresponding control signals according to input signals so as to drive motors to rotate, is simple in circuit structure, and reduces production costs.

Description

A kind of microcontroller

Technical field

The present invention relates to electric and automatic field, particularly relate to a kind of microcontroller.

Background technology

Microcontroller is by integrated for the major part of microcomputer one-chip microcomputer on a single die.Microcontroller was born in for 20 century 70 mid-terms, and through the development of more than 20 years, its cost was more and more lower, and performance from strength to strength, and it is ubiquitous that this makes it apply, throughout every field.Such as Electric Machine Control, bar-code reader/scanner, consumer electronics, game station, phone, HVAC, building safety and access control, Industry Control and robotization and white domestic appliances (washing machine, micro-wave oven) etc.

Intel Company, as the company releasing microprocessor the earliest, is equally also the company releasing microcontroller the earliest.After releasing MCS-48 continue 1976, be proposed MCS-51 again in 1980, the microcontroller of new generation for development with favorable compatibility is had laid a good foundation.8051 technology realize open after, the companies such as Philips, Atmel, Dallas and Siemens are proposed one after another based on 80C5l kernel (CMC of 805l) S version) microcontroller.These products differed from one another can meet a large amount of Embedded Application demand.Microcontroller based on 80C51 kernel does not stop the step of development, the DS89C430 Series of MCU that such as present Maxim/Dallas company provides, and its one-cycle instruction speed has brought up to 12 times of 805l.

During practical application, microcontroller reaches the problem controlling solar panel orientation by the running controlling motor.It is not high to there is output signal accuracy in existing microcontroller, can not control the running of driven by motor solar panel well.

Summary of the invention

The invention provides a kind of microcontroller, invention increases the precision of output signal, described below:

A kind of microcontroller, comprise: single-chip microcomputer, the first pin of described single-chip microcomputer is resetting pin, is connected respectively with the first electric capacity, the second resistance, the positive pole of described first electric capacity is connected with 5V power supply VCC, and the 4th pin of described single-chip microcomputer also connects crystal oscillator, the second electric capacity and the 3rd electric capacity;

6th pin of described single-chip microcomputer is level of control angle machine operation/stop signal end, and the 7th pin of described single-chip microcomputer is level of control motor drive direction signal end, and the 8th pin of single-chip microcomputer is horizontal angle motor chip selection signal; 12 pin FREE1 of single-chip microcomputer is for controlling elevation angle machine operation/stop signal end, and the 11 pin of single-chip microcomputer is for controlling elevation angle motor drive direction signal end, and the 9th pin of single-chip microcomputer is that elevation angle dynamo-sheet selects signal end;

19 pin of described single-chip microcomputer, the 18 pin are horizontal angle signal input part, and the 17 pin of single-chip microcomputer, the 16 pin are elevation signals input end; Second pin of single-chip microcomputer, the 3rd pin, the 13 pin and the 14 pin are unsettled;

Wherein, the 6th pin of described single-chip microcomputer, the 7th pin, the 8th pin, the 12 pin, the 11 pin motor drive correspondence equal with external with the 9th pin is connected, and described motor drive comprises horizontal motor and elevation angle motor.

15 pin of described single-chip microcomputer connects the emitter of the first resistance and phototriode respectively,

The collector of described phototriode connects 9V power supply by the 3rd resistance, and described first resistance and described 3rd resistance are biasing resistor.

The model of described single-chip microcomputer is 89C2051.

The beneficial effect of technical scheme provided by the invention is: microcontroller exports the rotation of corresponding control signal drive motor according to the signal of input, and then drives the movement of solar panel, and this microcontroller circuit structure is simple, reduces production cost.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of microcontroller;

Fig. 2 is the external connection diagram of the 15 pin of single-chip microcomputer.

In accompanying drawing, the list of parts representated by each label is as follows:

U5: single-chip microcomputer; C10: the first electric capacity;

R75: the second resistance; X1: crystal oscillator;

C11: the second electric capacity; C12: the three electric capacity;

R74: the first resistance; L5: phototriode;

R76: the three resistance.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly, below embodiment of the present invention is described further in detail.

See Fig. 1, a kind of microcontroller comprises: single-chip microcomputer U5, first pin of single-chip microcomputer U5 is resetting pin, be connected with the first electric capacity C10, the second resistance R75 respectively, the positive pole of the first electric capacity C10 is connected with 5V power supply VCC, and the 4th pin of single-chip microcomputer U5 also connects crystal oscillator X1, the second electric capacity C11 and the 3rd electric capacity C12; The 6th pin FREE of single-chip microcomputer U5 is level of control angle machine operation/stop signal end, and the 7th pin DIR of single-chip microcomputer U5 is level of control motor drive direction signal end, and the 8th pin CP of single-chip microcomputer U5 is horizontal angle motor chip selection signal; The 12 pin FREE1 of single-chip microcomputer U5 is for controlling elevation angle machine operation/stop signal end, and the 11 pin DIR1 of single-chip microcomputer U5 is for controlling elevation angle motor drive direction signal end, and the 9th pin CP1 of single-chip microcomputer U5 is that elevation angle dynamo-sheet selects signal end; The 19 pin CKX1 of single-chip microcomputer U5, the 18 pin CKX2 are horizontal angle signal input part, the 17 pin CKY1 of single-chip microcomputer U5, the 16 pin CKY2 are elevation signals input end, and the 15 pin Z of single-chip microcomputer U5 is day/night work/stop signal input end; Second pin of single-chip microcomputer U5, the 3rd pin, the 13 pin and the 14 pin are unsettled; Wherein, equal with the external motor drive correspondence of 8th pin CP, the 12 pin FREE1 of single-chip microcomputer U5 of the 6th pin FREE of single-chip microcomputer U5, the 7th pin DIR of single-chip microcomputer U5, single-chip microcomputer U5, the 11 pin DIR1 of single-chip microcomputer U5 and the 9th pin CP1 of single-chip microcomputer U5 is connected, and motor drive comprises horizontal motor and elevation angle motor.

See Fig. 2, the 15 pin of single-chip microcomputer U5 connects the emitter of the first resistance R74 and phototriode L5 respectively, and the collector of phototriode L5 connects 9V power supply by the 3rd resistance R76, and the first resistance R74 and the 3rd resistance R76 is biasing resistor.

Wherein, the model of single-chip microcomputer U5 is 89C2051.

During specific implementation, when this microcontroller is used in solar tracking system, microcontroller exports the rotation of corresponding control signal drive motor according to the signal of input, and then drives the movement of solar panel, realizes the accurate tracking to sunshine.

The embodiment of the present invention is to the model of each device except doing specified otherwise, and the model of other devices does not limit, as long as can complete the device of above-mentioned functions.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (3)

1. a microcontroller, comprise: single-chip microcomputer, it is characterized in that, first pin of described single-chip microcomputer is resetting pin, be connected with the first electric capacity, the second resistance respectively, the positive pole of described first electric capacity is connected with 5V power supply VCC, and the 4th pin of described single-chip microcomputer also connects crystal oscillator, the second electric capacity and the 3rd electric capacity;

6th pin of described single-chip microcomputer is level of control angle machine operation/stop signal end, and the 7th pin of described single-chip microcomputer is level of control motor drive direction signal end, and the 8th pin of single-chip microcomputer is horizontal angle motor chip selection signal; 12 pin FREE1 of single-chip microcomputer is for controlling elevation angle machine operation/stop signal end, and the 11 pin of single-chip microcomputer is for controlling elevation angle motor drive direction signal end, and the 9th pin of single-chip microcomputer is that elevation angle dynamo-sheet selects signal end;

19 pin of described single-chip microcomputer, the 18 pin are horizontal angle signal input part, and the 17 pin of single-chip microcomputer, the 16 pin are elevation signals input end; Second pin of single-chip microcomputer, the 3rd pin, the 13 pin and the 14 pin are unsettled;

Wherein, the 6th pin of described single-chip microcomputer, the 7th pin, the 8th pin, the 12 pin, the 11 pin motor drive correspondence equal with external with the 9th pin is connected, and described motor drive comprises horizontal motor and elevation angle motor.

2. a kind of microcontroller according to claim 1, is characterized in that, the 15 pin of described single-chip microcomputer connects the emitter of the first resistance and phototriode respectively,

The collector of described phototriode connects 9V power supply by the 3rd resistance, and described first resistance and described 3rd resistance are biasing resistor.

3. a kind of microcontroller according to claim 1, is characterized in that, the model of described single-chip microcomputer is 89C2051.