CN107943735A - Connect circuit and electronic equipment - Google Patents
Connect circuit and electronic equipment Download PDFInfo
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- CN107943735A CN107943735A CN201711341602.3A CN201711341602A CN107943735A CN 107943735 A CN107943735 A CN 107943735A CN 201711341602 A CN201711341602 A CN 201711341602A CN 107943735 A CN107943735 A CN 107943735A
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- pin
- test side
- terminal
- serial test
- connection circuit
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microcomputers (AREA)
Abstract
The embodiment of the present invention provides a kind of connection circuit and electronic equipment, the connection circuit includes first microprocessor, pull down resistor, ground terminal and first serial test side, and the first transmission pin, the first reception pin and the first interrupt pin are provided with the first microprocessor；Described first sends pin, the first reception pin and the first interrupt pin is connected by the first serial test side and the second terminal respectively, and the both ends of the pull down resistor are connected with the ground terminal and first serial test side respectively.The embodiment of the present invention can effectively reduce circuit complexity, save production cost by cleverly circuit structure design.
Description
Technical field
The present invention relates to split type equipment interconnection technique field, in particular to one kind connection circuit and electronic equipment.
Background technology
Two-in-one separated electronic equipment exquisiteness is slim, and using flexible, continuation of the journey are persistently, the inevitable share in future market
It is increasingly heavier, but the two-in-one separated electronic equipment is still there are problem, such as by taking two-in-one split type notebook as an example, in order to
The time delay that tablet and magnetic force keyboard communicate is set to reach the standard of Microsoft, the general connection design side for using 5Pin or more than 5Pin
Case, but the connection mode of the 5Pin or more than 5Pin to be not easy to be aligned in connection procedure, and circuit structure is complicated, manufacture
It is of high cost.
The content of the invention
In view of this, the present invention provides one kind connection circuit and electronic equipment, by the ingehious design to connecting circuit,
The above problem can effectively be alleviated, it is specific as follows.
The embodiment of the present invention provides a kind of connection circuit, applied to the first terminal being connected with second terminal, including first
Microprocessor, pull down resistor, ground terminal and first serial test side, are provided with the first transmission on the first microprocessor and draw
Foot, first receive pin and the first interrupt pin；
First transmission pin, the first reception pin and first interrupt pin pass through the first serial test side respectively
Connected with the second terminal, the both ends of the pull down resistor connect with the ground terminal and first serial test side respectively
Connect；
The first microprocessor is used for the first serial test side detection two by being connected with the second terminal
The communication connection status of person, and control first interrupt pin, first to send pin, the first reception pin according to testing result
Respectively with the connection status of the second terminal to realize the data interaction shape between the first terminal and the second terminal
The switching of state.
In the selection of present pre-ferred embodiments, the connection circuit further includes the first one-way conduction module, and described the
The both ends of one one-way conduction module are connected with the described first reception pin and the first serial test side respectively.
Present pre-ferred embodiments also provide a kind of connection circuit, applied to the second terminal being connected with first terminal, bag
The second microprocessor, pull-up resistor, power end and second serial test side are included, the second hair is provided with second microprocessor
Pin, second is sent to receive pin and the second interrupt pin；
Described second sends pin, the second reception pin and the parallel connection of the second interrupt pin, and is gone here and there respectively by described second
Mouth test side is connected with the first terminal, and the both ends of the pull-up resistor are examined with the power end and second serial respectively
Survey end connection；
Second microprocessor is used for the second serial test side detection two by being connected with the first terminal
The communication connection status of person, and control second interrupt pin, second to send pin, the second reception pin according to testing result
Respectively with the connection status of the second terminal to realize the data interaction shape between the second terminal and the first terminal
The switching of state.
In the selection of present pre-ferred embodiments, the connection circuit further includes the second one-way conduction module, and described the
The both ends of two one-way conduction modules are connected with the reception pin and the serial ports test side respectively.
Present pre-ferred embodiments also provide a kind of connection circuit, applied to the electronics for including first terminal and second terminal
Equipment, it is described connection circuit include first microprocessor, the second microprocessor, first serial test side, second serial test side,
Pull-up resistor, pull down resistor, ground terminal and power end, the first transmission pin is provided with the first microprocessor, first is connect
Spasm foot and the first interrupt pin, the second transmission pin is provided with second microprocessor, second receives pin and second
Interrupt pin；
First transmission pin, the first reception pin and first interrupt pin pass through the first serial test side respectively
Connected with the second serial test side, described second sends pin, the second reception pin and the parallel connection of the second interrupt pin,
And be connected respectively by the second serial test side with the first serial test side, the both ends of the pull-up resistor respectively with
The power end is connected with second serial test side, and the both ends of the pull down resistor are examined with the ground terminal and first serial respectively
Survey end connection.
In the selection of present pre-ferred embodiments, the connection circuit further includes the first one-way conduction module and the second list
To conduction module；
The both ends of the first one-way conduction module receive pin and the first serial test side with described first respectively
Connection, pin is received with described second respectively for the both ends of the second one-way conduction module and the second serial test side connects
Connect.
In the selection of present pre-ferred embodiments, the first one-way conduction module or/and second conduction module
Can be low level conducting, the triode of high level high resistant.
In the selection of present pre-ferred embodiments, the first serial test side and the second serial test side are magnetic
Suction connects.
Present pre-ferred embodiments also provide a kind of electronic equipment, including above-mentioned connection circuit and power module, described
Power module is connected with the power end in the connection circuit.
Compared with prior art, connection circuit and electronic equipment provided in an embodiment of the present invention, by connection circuit
Ingehious design, can effectively reduce circuit complexity, reduce the connecting terminal during connection of separated electronic equipment, reduce electronics production
The manufacture cost of product.Meanwhile the embodiment of the present invention can also effectively improve the aesthetics of electronic equipment appearance, improve user and use
Experience.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the frame structure schematic diagram of electronic equipment provided in an embodiment of the present invention.
Fig. 2 is the connection block diagram for the connection circuit that the embodiment of the present invention one provides.
Fig. 3 is the connection block diagram of connection circuit provided by Embodiment 2 of the present invention.
Fig. 4 is the connection block diagram for the connection circuit that the embodiment of the present invention three provides.
Icon：10- first terminals；100- first microprocessors；101- pull down resistors；102- ground terminals；103- first goes here and there
Mouth test side；104- first sends pin；105- first receives pin；The first interrupt pins of 106-；The first one-way conductions of 107-
Module；20- second terminals；The second microprocessors of 200-；201- pull-up resistors；202- power ends；203- second serials test side；
204- second sends pin；205- second receives pin；The second interrupt pins of 206-；207- the second one-way conduction modules；30- electricity
Sub- equipment.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment only
It is the part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings
The component of embodiment can be arranged and designed with a variety of configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.In description of the invention
In, term " first, second, third, fourth etc. be only used for distinguish description, and it is not intended that simply or imply relative importance.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body implication.
Study and find through inventor, in the prior art, separated electronic equipment 30 such as split type notes as shown in Figure 1
It is general between two terminals of tablet and keyboard in this to be attached using the connecting terminal of 5Pin or more than 5Pin, but the company
Connect there are circuit structure complexity in mode, circuit manufacture is of high cost, and when using the electronic equipment 30, is not easy between two terminals
The problems such as alignment.Based on this, inventor to it is existing connection circuit improved, below by by different embodiments to this
The technical solution provided is invented to describe in detail.
Embodiment one
As shown in Fig. 2, the connection circuit provided for the embodiment of the present invention one, which is applied to and second terminal 20
The first terminal 10 of connection.Wherein, the connection circuit includes first microprocessor 100, pull down resistor 101,102 and of ground terminal
First serial test side 103, the first transmission pin 104, first is provided with the first microprocessor 100 and receives pin 105
With the first interrupt pin 106, the first transmission pin 104, first receives 105 and first interrupt pin 106 of pin and leads to respectively
The first serial test side 103 is crossed to connect with the second terminal 20, the both ends of the pull down resistor 101 respectively with institute
State ground terminal 102 and first serial test side 103 connects.
The first microprocessor 100 is used for the first serial test side by being connected with the second terminal 20
The communication connection status of both 103 detections, and control first interrupt pin 106, first to send pin according to testing result
104th, the first reception pin 105 is respectively with the connection status of the second terminal 20 to realize the first terminal 10 and described the
The switching of data interaction state between two terminals 20.
Alternatively, in the present embodiment one, the first microprocessor 100 can be but not limited to join positive semiconductor
MCUITE8987 etc., the MCUITE8987 of the connection sun semiconductor is powered using 3.3V power modules, and supports serial port
(UART), its baud rate can reach more than 115200.
The first serial test side 103 carries out the judgement of first terminal 10 or second terminal 20 using interrupt mode, its
In, communication modes therebetween can be half-duplex mode.In addition, the resistance value of the pull down resistor 101 can be but unlimited
In 220K.
The first transmission pin 104, first receives pin 105, first interrupt pin 106 uses parallel, and point
Do not connected by the first serial test side 103 and the second terminal 20, such as magnetic-type to connect, this implementation
Example is not limited herein.Wherein, compared with prior art, the first transmission pin 104, first is received and drawn by the embodiment of the present invention one
Contacted after foot 105, first interrupt pin 106 are parallel by the first serial test side 103 with the second terminal 20
Connection, can effectively reduce circuit complexity and circuit manufacture cost.Meanwhile can also be by reducing and the second terminal 20
Connecting terminal so that be more prone to when carrying out the connection of first terminal 10 and second terminal 20.
Further, the first transmission pin 104 turned on low level, realized by way of high level high resistant conducting with
Disconnect, its embodiment have it is a variety of, for example, can directly by the first microprocessor 100 provide control signal carry out
Control etc.；Or such as in the present embodiment one, can be by setting the side of the first one-way conduction module 107 in the connection circuit
Formula realizes, specifically, the both ends of the first one-way conduction module 107 can send pin 104 and described with described first respectively
First serial test side 103 connects, for sending conducting or the pass of pin 104 according to the height of incoming level control described first
It is disconnected.Alternatively, the first one-way conduction module 107 can be but not limited to triode etc..
The interrupt pin is as output interface, for detecting whether there is external equipment access.For example, work as described second eventually
When end 20 is connected by the first serial test side 103 and the first terminal 10, first interrupt pin 106
Incoming level is high level；Conversely, the incoming level of first interrupt pin 106 is low level.In addition, described first
Interrupt pin 106 need to forbid the corresponding function of the first transmission pin 104 and the first reception pin 105 when being high level, i.e., described
First terminal 10 is idle (IDLE) state.
In addition in the present embodiment one, the working status of the first terminal 10 is further included in addition to (IDLE) state
HOST states or SLAVE states.Wherein, HOST states are if desired switched to, then need enabled first to send 104 function of pin,
Forbid the first interrupt pin 106 and the function of the first reception pin 105.If desired SLAVE states are switched to, then need enabled the
One receives 105 function of pin, forbids the first interrupt pin 106 and the function of the first transmission pin 104.Wherein, HOST is being carried out
During switching between state and SLAVE states, it can be sentenced according to the trailing edge of the signal in first interrupt pin 106
It is disconnected.In addition, can be by the way of response, after such as receiving response in first terminal 10 and the communication process of second terminal 20, can
State is switched back into IDLE state from HOST states/SLAVE states.
Embodiment two
As shown in figure 3, applied to the second terminal 20 being connected with first terminal 10, including the second microprocessor 200, pull-up
Resistance 201, power end 202 and second serial test side 203, are provided with the second transmission pin on second microprocessor 200
204th, second 205 and second interrupt pin 206 of pin is received.Described second, which sends pin 204, second, receives pin 205 and the
Two interrupt pin 206 is in parallel, and is connected respectively by the second serial test side 203 and the first terminal 10, institute
The both ends for stating pull-up resistor 201 are connected with the power end 202 and second serial test side 203 respectively.
Second microprocessor 200 is used for the second serial test side by being connected with the first terminal 10
The communication connection status of both 203 detections, and control second interrupt pin 206, second to send pin according to testing result
204th, the second reception pin 205 is respectively with the connection status of the second terminal 20 to realize the second terminal 20 and described the
The switching of data interaction state between one terminal 10.Alternatively, in the present embodiment two, second microprocessor 200 can
Partly to be led using with the 100 matched model of first microprocessor, the MCU ITE8911 of the positive semiconductor of such as connection, the connection sun
The MCU ITE8911 of body can also use 3.3V to power, while also support serial port (UART), and baud rate can reach
More than 115200.
The power end 202 is used for external power supply module with for the first microprocessor 100 or/and second micro- place
Manage device 200 and electric energy supply is provided.The pull-up resistor 201 can use but be not limited to the resistance of 2.2K.
It is understood that compared with embodiment one, second serial test side 203 and embodiment one in the present embodiment two
In the first string hole test side there is the same or similar structure or function, and the two can be connect using magnetic-type connection mode
Touch connection.In addition, compared with embodiment one, provide second in the present embodiment two, which sends pin 204, second, receives pin
205th, the second interrupt pin 206 and the second one-way conduction module 207 etc. are also drawn with the first transmission provided in embodiment one
Foot 104, first receives pin 105, the first interrupt pin 106 and the first one-way conduction module 107 with identical or corresponding
Structure or function, details are not described herein for the present embodiment.
Embodiment three
Design and description based on above-described embodiment one and embodiment two, as shown in figure 4, the present embodiment three provides a kind of connect
Circuit is connect, which includes being applied to include first terminal 10 and the electronic equipment 30 of second terminal 20, the connection electricity
Road include first microprocessor 100, the second microprocessor 200, first serial test side 103, second serial test side 203, on
Pull-up resistor 201, pull down resistor 101, ground terminal 102 and power end 202, are provided with the first hair on the first microprocessor 100
Send pin 104, first to receive 105 and first interrupt pin 106 of pin, the second hair is provided with second microprocessor 200
Pin 204, second is sent to receive 205 and second interrupt pin 206 of pin.
The first transmission pin 104, first receives 105 and first interrupt pin 106 of pin and passes through described first respectively
Serial ports test side 103 is connected with the second serial test side 203, and described second, which sends pin 204, second, receives pin
205 and the second interrupt pin 206 it is in parallel, and pass through the second serial test side 203 and the first serial test side respectively
103 connections, the both ends of the pull-up resistor 201 are connected with the power end 202 and second serial test side 203 respectively, described
The both ends of pull down resistor 101 are connected with the ground terminal 102 and first serial test side 103 respectively.
It is understood that the present embodiment three include in above-described embodiment one in the connection circuit that provides and embodiment two to
The connection circuit gone out, wherein, two connection circuits pass through 203 mouthfuls of 103 mouthfuls of first serial test side and second serial test side
The connection circuit that contact connection is provided with forming in the present embodiment three, thus this will not be repeated here for the present embodiment three.
The pin of existing 5PIN or more than 5PIN passed through in addition, compared with prior art, in the present embodiment three parallel
Mode be reduced to 3PIN, such as the present embodiment power end 202 (VCC PIN), the first/bis- serial ports test side (COM PIN) and connect
Ground terminal 102 (GND PIN), is being occurred the problem of being not easy contact, at the same time so as to effectively reduce electronic equipment 30 using process
Reduce circuit complexity, and the manufacture cost of electronic equipment 30.
Further, a kind of electronic equipment 30 is given in the present embodiment four, which includes above-mentioned connection
Circuit and power module, the power module are connected with the power end 202 in the connection circuit.Wherein, the power module
Electric energy supply is provided for each function module in the electronic equipment 30, such as first microprocessor 100, the second microprocessor 200
Deng.Alternatively, the power module can be but not limited to 3.3V power modules.
In conclusion connection circuit provided in an embodiment of the present invention and electronic equipment 30, by the ingenious of connection circuit
Design, can effectively reduce circuit complexity, reduce connecting terminal when separated electronic equipment 30 connects, reduce electronic product
Manufacture cost.Meanwhile the embodiment of the present invention can effectively improve the aesthetics of 30 appearance of electronic equipment, improve user and use body
Test.
Obviously, those skilled in the art should be understood that the function of the above-mentioned embodiment of the present invention can use general meter
Device is calculated to realize, they can be concentrated on single computing device, or are distributed in the net that multiple computing devices are formed
On network, alternatively, existing program code or algorithm that they can be can perform with computing device is realized, it is thus possible to by it
Store and performed in the storage device by computing device, either they are fabricated to respectively each integrated circuit modules or
Multiple modules or step in them are fabricated to single integrated circuit module to realize.In this way, functions implementing the present invention are not
Any specific hardware and software is limited to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. one kind connection circuit, applied to the first terminal being connected with second terminal, it is characterised in that including the first microprocessor
Device, pull down resistor, ground terminal and first serial test side, are provided with the first transmission pin, first on the first microprocessor
Receive pin and the first interrupt pin；
First transmission pin, the first reception pin and first interrupt pin pass through the first serial test side and institute respectively
Second terminal contact connectio is stated, the both ends of the pull down resistor are connected with the ground terminal and first serial test side respectively；
The first microprocessor is used to detect both by the first serial test side being connected with the second terminal
Communication connection status, and control first interrupt pin, first to send pin, the first reception pin difference according to testing result
With the connection status of the second terminal to realize the data interaction state between the first terminal and the second terminal
Switching.
2. connection circuit according to claim 1, it is characterised in that the connection circuit further includes the first one-way conduction mould
Block, the both ends of the first one-way conduction module are connected with the described first reception pin and the first serial test side respectively.
3. one kind connection circuit, applied to the second terminal being connected with first terminal, it is characterised in that including the second microprocessor
Device, pull-up resistor, power end and second serial test side, are provided with the second transmission pin, second on second microprocessor
Receive pin and the second interrupt pin；
Described second sends pin, the second reception pin and the parallel connection of the second interrupt pin, and is examined respectively by the second serial
End and the first terminal is surveyed to connect, the both ends of the pull-up resistor respectively with the power end and second serial test side
Connection；
Second microprocessor is used to detect both by the second serial test side being connected with the first terminal
Communication connection status, and control second interrupt pin, second to send pin, the second reception pin difference according to testing result
With the connection status of the second terminal to realize the data interaction state between the second terminal and the first terminal
Switching.
4. connection circuit according to claim 3, it is characterised in that the connection circuit further includes the second one-way conduction mould
Block, the both ends of the second one-way conduction module are connected with the reception pin and the serial ports test side respectively.
5. one kind connection circuit, applied to the electronic equipment for including first terminal and second terminal, it is characterised in that the connection
Circuit includes first microprocessor, the second microprocessor, first serial test side, second serial test side, pull-up resistor, drop-down
Resistance, ground terminal and power end, the first transmission pin is provided with the first microprocessor, first is received in pin and first
Break pin, and the second transmission pin, the second reception pin and the second interrupt pin are provided with second microprocessor；
First transmission pin, the first reception pin and first interrupt pin pass through the first serial test side and institute respectively
Second serial test side contact connectio is stated, described second sends pin, the second reception pin and the parallel connection of the second interrupt pin, and divides
Be not connected by the second serial test side with the first serial test side, the both ends of the pull-up resistor respectively with it is described
Power end is connected with second serial test side, the both ends of the pull down resistor respectively with the ground terminal and first serial test side
Connection.
6. connection circuit according to claim 5, it is characterised in that the connection circuit further includes the first one-way conduction mould
Block and the second one-way conduction module；
The both ends of the first one-way conduction module are connected with the described first reception pin and the first serial test side respectively,
The both ends of the second one-way conduction module are connected with the described second reception pin and the second serial test side respectively.
7. connection circuit according to claim 6, it is characterised in that the first one-way conduction module or/and described
Two one-way conduction modules can be low level conducting, the triode of high level high resistant.
8. connection circuit according to claim 5, it is characterised in that the first serial test side and the second serial
Test side is magnetic-type contact connectio.
9. a kind of electronic equipment, it is characterised in that including the connection circuit and power supply mould any one of claim 5-8
Block, the power module are connected with the power end in the connection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341602.3A CN107943735A (en) | 2017-12-14 | 2017-12-14 | Connect circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341602.3A CN107943735A (en) | 2017-12-14 | 2017-12-14 | Connect circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN107943735A true CN107943735A (en) | 2018-04-20 |
Family
ID=61944316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711341602.3A Pending CN107943735A (en) | 2017-12-14 | 2017-12-14 | Connect circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107943735A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112416678A (en) * | 2020-11-18 | 2021-02-26 | 北京东土科技股份有限公司 | Fan in-place detection device and method |
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Application publication date: 20180420 |
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