CN203191972U

CN203191972U - Intelligent electronic device

Info

Publication number: CN203191972U
Application number: CN 201320145718
Authority: CN
Inventors: 张国富
Original assignee: Shenzhen Neoway Technology Co Ltd
Current assignee: Shenzhen Neoway Technology Co Ltd
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-09-11
Anticipated expiration: 2023-03-28

Abstract

The utility model provides an intelligent electronic device. In the intelligent electronic device, an SC6610 chip can send a serial port instruction of opening a serial port expanding logic unit 20 through an IIC bus, the serial port expanding logic unit 20 receives the instruction and initializes serial ports according to serial communication parameters (such as Baud rate, a parity check mode, data bits and stop bits), then the SC6610 chip sends communication data to the serial port expanding logic unit 20 through the IIC bus, the serial port expanding logic unit 20 receives the communication data and then sends the communication data to corresponding serial ports, and accordingly the serial port expansion process is finished.

Description

Intelligent electronic device

Technical field

The utility model relates to electronic technology field, especially relates to a kind of intelligent electronic device.

Background technology

Intelligent electronic device refers to that those have the smart machine of multimedia function, and these equipment are supported the function of aspects such as audio frequency, video, data usually, as: the PC of videophone, conference terminal, built-in multimedia function, PDA etc.

Popularizing and promoting along with intelligent electronic device, communication need between intelligent electronic device increases day by day, this needs smart machine that more communication interface equipment is provided, general serial communication port (Uart is called for short serial ports) is widely used in data communication between smart machine as a kind of simple, practical communication interface; Yet the general CPU management general intelligence of smart machine provides 2～3 Uart communication ports, needs the Uart communication interface of extension CPU.The method of extended serial communication port of the prior art is to be connected the Uart serial ports with data bus by cpu address bus, uses this method mainly to have the problem of the following aspects:

1, owing to cpu data bus and address bus access speed fast (generally more than 5MHz), communication data is interfered easily.

2, expansion Uart device responds rate request height, the cost height.

3, take the address space of CPU, influence travelling speed and the efficient of CPU, cause CPU to crash easily and reset.

4, hardware design circuit complexity is high to designer's professional skill requirement.

The utility model content

The utility model provides a kind of intelligent electronic device, and it can solve, and prior art scheme communication data is subjected to disturb easily, hardware circuit design complicated technology problem.

The utility model provides a kind of intelligent electronic device, comprising:

Based Intelligent Control management logic unit and expansion serial port logic unit, the model of described Based Intelligent Control management logic unit is SC6610, described Based Intelligent Control management logic unit is connected with described expansion serial port logic unit by the IIC communication bus, and described expansion serial port logic unit comprises three standard universal serial communication interfaces.

Preferably, the universal standard general serial communication port of the expansion serial port logic unit of described intelligent electronic device is connected with the RS485 driving circuit.

Preferably, the model of the described expansion serial port logic unit of described intelligent electronic device is auspicious Sa G13.

Preferably, the 12 pin of the described SC6610 chip of described intelligent electronic device is electrically connected with the 7th pin of described G13 chip, the 13 pin of described SC6610 chip is electrically connected with the 8th pin of described G13 chip, and the 31 pin of described SC6610 chip is electrically connected with the 16 pin of described G13 chip.

Preferably, the tenth pin ground connection of the described SC6610 chip of described intelligent electronic device, the 5th pin ground connection of described G13 chip.

Preferably, first pin of the described SC6610 chip of described intelligent electronic device is electrically connected with crystal oscillator by resistance.

Preferably, the described crystal oscillator of described intelligent electronic device is 3.5795M.

As from the foregoing, in the intelligent electronic device that present embodiment provides, the SC6610 chip can send the serial port command of opening expansion serial port logic unit by iic bus, expansion serial port logic unit receives after the order according to serial communication parameter (as baud rate, parity check system, data bit, position of rest etc.) initialization serial ports, the SC6610 chip sends to expansion serial port logic unit by iic bus with communication data then, after expansion serial port logic unit receives communication data, communication data is sent to corresponding serial ports, thereby finish the expansion process of serial ports.

With respect to intelligent electronic device of the prior art, SC6610 in the present embodiment adopts the IIC communication interface to expand serial ports, can keep to greatest extent, the clone design, reduces product development cycle and cost of development.In addition, the IIC communication interface is simple in structure, is convenient to Based Intelligent Control management logic unit extensions, and also available common IO carries out Simulation with I IC interface.Hardware design is simple, is convenient to expansion, and the designer requires low to exploitation.

Description of drawings

Fig. 1 is the structural representation of the intelligent electronic device that provides of the utility model;

Fig. 2 is the pin synoptic diagram of the Based Intelligent Control management logic unit in the intelligent electronic device that provides of the utility model;

Fig. 3 is the pin synoptic diagram of the expansion serial port logic unit in the intelligent electronic device that provides of the utility model.

The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Referring to Fig. 1, Fig. 1 is the structural representation of the intelligent electronic device that provides of the utility model.

As shown in the figure, the intelligent electronic device that the utility model provides mainly comprises: Based Intelligent Control management logic unit 10 and expansion serial port logic unit 20, the model of described Based Intelligent Control management logic unit 10 is SC6610, described Based Intelligent Control management logic unit 10 is connected with described expansion serial port logic unit 20 by the IIC communication bus, and described expansion serial port logic unit 20 comprises three standard universal serial communication interfaces.

In the intelligent electronic device that present embodiment provides, the SC6610 chip can send the serial port command of opening expansion serial port logic unit 20 by iic bus, expansion serial port logic unit 20 receives after the order according to serial communication parameter (as baud rate, parity check system, data bit, position of rest etc.) initialization serial ports, the SC6610 chip sends to expansion serial port logic unit 20 by iic bus with communication data then, after expansion serial port logic unit 20 receives communication data, communication data is sent to corresponding serial ports, thereby finish the expansion process of serial ports.

Further referring to Fig. 1, in the intelligent electronic device that present embodiment provides, the universal standard general serial communication port of described expansion serial port logic unit 10 is connected with RS485 driving circuit 30, and then connects other RS485 equipment.

In conjunction with Fig. 2-3, Fig. 2 is the pin synoptic diagram of the Based Intelligent Control management logic unit (SC6610) in the intelligent electronic device that provides of the utility model, and Fig. 3 is the pin synoptic diagram of the expansion serial port logic unit in the intelligent electronic device that provides of the utility model.

In the present embodiment, the model of described expansion serial port logic unit is auspicious Sa G13, and the 12 pin of described SC6610 chip is electrically connected with the 7th pin of described G13 chip, as the clock cable of IIC communication; The 13 pin of described SC6610 chip is electrically connected with the 8th pin of described G13 chip, as the data line of IIC communication; The 31 pin of described SC6610 chip is electrically connected with the 16 pin of described G13 chip, as G13 data communication request interconnection.

The tenth pin ground connection of described SC6610 chip, the 5th pin ground connection of described G13 chip; First pin of described SC6610 chip is electrically connected with crystal oscillator by resistance; Described crystal oscillator is 3.5795M.

In the present embodiment, when SC6610 sent data X to expansion serial ports (as G13 serial ports 2), SC6610 sent packet by iic bus to G13

0x57

0x1A

L

X

CS

0x58

The data of X for need sending wherein, L is the length of X data, CS be verification and, 0x57 and 0x58 are respectively head and afterbody sign; G13 sends to serial ports 2. with the X data field after receiving packet

But after the serial ports 2 of G13 receives data, the level of pin 16 is output as 0, request SC6610 reads data, has no progeny in the SC6610 response, will send the data query order by IIC

0x57

0x12

0

0x69(CS)

0x58

To G13, after G13 receives order, will form packet from the data DX that serial ports 2 receives, the response inquiry response, reply form and be:

0x57

0xE2

LX

DX

CS

0x58

LX is the data length of DX, and DX is the data message that serial ports 2 receives.

Present embodiment has been realized the serial ports expansion function of SC6610 by above several steps.

Should be understood that; it below only is preferred embodiment of the present utility model; can not therefore limit claim of the present utility model; every equivalent mechanism or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. intelligent electronic device, it is characterized in that, comprise: Based Intelligent Control management logic unit and expansion serial port logic unit, the model of described Based Intelligent Control management logic unit is SC6610, described Based Intelligent Control management logic unit is connected with described expansion serial port logic unit by the IIC communication bus, and described expansion serial port logic unit comprises three standard universal serial communication interfaces.

2. intelligent electronic device according to claim 1 is characterized in that,

The universal standard general serial communication port of described expansion serial port logic unit is connected with the RS485 driving circuit.

3. intelligent electronic device according to claim 2 is characterized in that, the model of described expansion serial port logic unit is auspicious Sa G13.

4. intelligent electronic device according to claim 3, it is characterized in that, the 12 pin of described SC6610 chip is electrically connected with the 7th pin of described G13 chip, the 13 pin of described SC6610 chip is electrically connected with the 8th pin of described G13 chip, and the 31 pin of described SC6610 chip is electrically connected with the 16 pin of described G13 chip.

5. intelligent electronic device according to claim 4 is characterized in that, the tenth pin ground connection of described SC6610 chip, the 5th pin ground connection of described G13 chip.

6. intelligent electronic device according to claim 5 is characterized in that, first pin of described SC6610 chip is electrically connected with crystal oscillator by resistance.

7. intelligent electronic device according to claim 6 is characterized in that, described crystal oscillator is 3.5795M.