CN109327581A - A kind of downloading switching device and mobile terminal - Google Patents
A kind of downloading switching device and mobile terminal Download PDFInfo
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- CN109327581A CN109327581A CN201811431107.6A CN201811431107A CN109327581A CN 109327581 A CN109327581 A CN 109327581A CN 201811431107 A CN201811431107 A CN 201811431107A CN 109327581 A CN109327581 A CN 109327581A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/017509—Interface arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
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Abstract
The present invention discloses a kind of downloading switching device and mobile terminal, belongs to field of mobile terminals.It include: timing module, current potential conversion module, switch unit, in which: the timing module is used to carry out timework according to the input current potential of VBUS, and exports current potential for the current potential conversion module；The current potential conversion module is used to the output current potential of the timing module carrying out reverse phase conversion, exports current potential for the switch unit；The switch unit is used to carry out switch work according to the output current potential of the current potential conversion module, and the 1.8V voltage output port of the force download port USB-BOOT and power management chip that make central processing unit are shorted.Through the embodiment of the present invention, it may be implemented without can easily occur force download port function in the case where tearing machine open to realize that force download operates, evade common machine of tearing open to operate, it avoids tearing the possible damage of machine operation open, the loss after sale reduced, it improves efficiency, and user-friendly, promotes user experience.
Description
Technical field
The present invention relates to field of mobile terminals, in particular to a kind of downloading switching device and mobile terminal.
Background technique
It is also more and more using the user of mobile terminal with becoming increasingly popular for mobile terminal, and with the development of technology,
Mobile terminal intelligence degree is also higher and higher, and Intelligent mobile terminal has become an important carrier in user's life, more
More and more information, such as photo, film, data etc. are stored in the terminal come more users.Intelligent mobile terminal
Development be also increasingly intended to the direction, such as the configuration of 8+128G, 8+256G etc. of big memory.Thereupon, mobile terminal
Data exchange between computer is also more and more important, more and more frequently.
Currently, mobile terminal and computer transmission data or information, the connection medium usually using data line as the two, i.e.,
Mobile terminal is connect with computer using data line, whether data or information can be normally carried out transmission, and key is mobile whole
Whether end can pass through data line and compunlcation success.By taking high pass scheme as an example, usually only there is port in computer and show
Shi Caihui further transmits data.
But if the communication of mobile terminal and computer goes wrong, mobile terminal just can not carry out positive normal open with computer
Letter, by taking high pass scheme as an example, port can not be occurred by being embodied in.At this point, if can not by software come when solving the problems, such as this,
Then need to tear open machine operation, it may be assumed that mobile terminal disassemble to and exposed mainboard position, (such as by force by the related download pin of mainboard side
System downloading USB_BOOT pin) it is shorted with the 1.8V high potential that the Switching Power Supply in high pass power management chip PM chip exports,
Then data line is inserted into computer again, mobile terminal download port can occurs in computer end, then carry out the operation such as brush machine again.
The above this mode disadvantage is to need to tear machine open.User needs for mobile terminal to be sent to producer's after-sale service point,
It is operated by carrying out tearing machine open after sale.Processing mode also is brought to fall into a long wait to user and be made in addition to giving and making troubles after sale in this way
It is available at no mobile terminal, it causes inconvenience to the user, influences user experience；And tear whether machine can bring other damages in the process open
Bad is also a very big risk point.
Summary of the invention
In view of this, a kind of downloading switching device provided in an embodiment of the present invention and mobile terminal, may be implemented to be not necessarily to
Can occur force download port function in the case where tearing machine open easily to realize that force download operates, evade common machine of tearing open and grasp
Make, avoid tearing the possible damage of machine operation open, the loss after sale of reduction improves efficiency, and user-friendly, promotes user
Experience.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
According to an aspect of an embodiment of the present invention, a kind of downloading switching device provided is applied to mobile terminal, packet
It includes: timing module, current potential conversion module, switch unit, in which:
The timing module for carrying out timework according to the input current potential of VBUS, and is the current potential conversion module
Export current potential；
The current potential conversion module, connect with the timing module, for carrying out the output current potential of the timing module
Reverse phase conversion exports current potential for the switch unit；
The switch unit is connect with the current potential conversion module, for the output electricity according to the current potential conversion module
Position carries out switch work, and makes the force download port USB-BOOT and power management of central processing unit according to the switch work
The 1.8V voltage output port of chip is shorted.
In a possible design, the timing module carries out timework according to the input current potential of VBUS, comprising:
When port is normal, it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger the timing module
Work, the timing module export low potential；
When port exception, low potential is inputted at the end VBUS, the VBUS low potential triggers the timing module and starts to count
When work, the timing module exports high potential before default timing time is not finished, and exports after default timing time
Low potential.
In a possible design, the current potential conversion module is used to carry out the output current potential of the timing module anti-
Mutually convert；Include:
When the output current potential of the timing module is high potential, the current potential conversion module exports the timing module
High potential be converted to low potential；
When the output current potential of the timing module is low potential, the current potential conversion module exports the timing module
High potential be converted to high potential.
In a possible design, the switch unit is used to be carried out according to the output current potential of the current potential conversion module
Work is switched, and makes the force download port USB-BOOT and power management chip of central processing unit according to the switch work
1.8V voltage output port is shorted；Include:
When port is normal, it is high potential that VBUS, which inputs current potential, and the timing module exports low potential, by the current potential
Conversion module converts output as high potential, is in close state the switch unit, makes the force download end of central processing unit
The 1.8V voltage output port of mouth USB-BOOT and power management chip is in an off state；
When port exception, low potential is inputted at the end VBUS, the timing module starts timework, is not finished in timing
Preceding output high potential converts output by the current potential conversion module as low potential, turns the switch unit by closed state
Become on state, makes the force download port USB-BOOT of central processing unit and the 1.8V voltage output end of power management chip
Mouth is in connection status by off-state；The timing module exports low potential after timing, converts by the current potential
Module converts output as high potential, is in off state the switch unit by state transformation, makes the strong of central processing unit
The 1.8V voltage output port of download port USB-BOOT and power management chip processed are in an off state by connection status.
Other side according to an embodiment of the present invention, a kind of mobile terminal provided, comprising: central processing unit, power supply
Managing chip and downloading switching device, in which:
The central processing unit includes force download port USB-BOOT；
The power management chip includes a 1.8V voltage output port；
The downloading switching device makes the force download end of the central processing unit for the input current potential according to VBUS
The 1.8V voltage output port of mouth USB-BOOT and the power management chip is shorted.
In a possible design, the downloading switching device, comprising: timing module, current potential conversion module, switch are single
Member, in which:
The timing module for carrying out timework according to the input current potential of VBUS, and is the current potential conversion module
Export current potential；
The current potential conversion module, connect with the timing module, for carrying out the output current potential of the timing module
Reverse phase conversion exports current potential for the switch unit；
The switch unit is connect with the current potential conversion module, for the output electricity according to the current potential conversion module
Position carries out switch work, and makes the force download port USB-BOOT and power management of central processing unit according to the switch work
The 1.8V voltage output port of chip is shorted.
In a possible design, the timing module carries out timework according to the input current potential of VBUS, comprising:
When port is normal, it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger the timing module
Work, the timing module export low potential；
When port exception, low potential is inputted at the end VBUS, the VBUS low potential triggers the timing module and starts to count
When work, the timing module exports high potential before default timing time is not finished, and exports after default timing time
Low potential.
In a possible design, the current potential conversion module is used to carry out the output current potential of the timing module anti-
Mutually convert；Include:
When the output current potential of the timing module is high potential, the current potential conversion module exports the timing module
High potential be converted to low potential；
When the output current potential of the timing module is low potential, the current potential conversion module exports the timing module
High potential be converted to high potential.
In a possible design, the switch unit is used to be carried out according to the output current potential of the current potential conversion module
Work is switched, and makes the force download port USB-BOOT and power management chip of central processing unit according to the switch work
1.8V voltage output port is shorted；Include:
When port is normal, it is high potential that VBUS, which inputs current potential, and the timing module exports low potential, by the current potential
Conversion module converts output as high potential, is in close state the switch unit, makes the force download end of central processing unit
The 1.8V voltage output port of mouth USB-BOOT and power management chip is in an off state；
When port exception, low potential is inputted at the end VBUS, the timing module starts timework, is not finished in timing
Preceding output high potential converts output by the current potential conversion module as low potential, turns the switch unit by closed state
Become on state, makes the force download port USB-BOOT of central processing unit and the 1.8V voltage output end of power management chip
Mouth is in connection status by off-state；The timing module exports low potential after timing, converts by the current potential
Module converts output as high potential, is in off state the switch unit by state transformation, makes the strong of central processing unit
The 1.8V voltage output port of download port USB-BOOT and power management chip processed are in an off state by connection status.
Compared with the relevant technologies, a kind of downloading switching device and mobile terminal provided in an embodiment of the present invention, Ke Yishi
Existing mobile terminal force download function.By the way that when port is normal, VBUS is high potential, the high potential of VBUS can't trigger fixed
When module work, timing module, which exports low potential, by exporting high potential after the current potential conversion module makes the switch unit
Generation is in close state, to make the force download port USB-BOOT of central processing unit and the 1.8V electricity of power management chip
Pressure output port is in an off state, and mobile terminal can be with computer normal communication at this time；It is defeated at the end VBUS in port when exception
Enter a low potential, triggering timing module starts timework, timing module output high potential before timing is not finished, by described
Current potential conversion module converts output as low potential, so that the switch unit is changed on state by closed state, makes centre
The 1.8V voltage output port of the force download port USB-BOOT and power management chip that manage device are in connection status, at this point,
Mobile terminal is connected into computer by data line in timing module timing course, will appear port at this time, mobile terminal can be with
Normal communication is carried out with computer, the operation such as data exchange can be carried out；The timing module exports low potential after timing,
Output is converted as high potential by the current potential conversion module, is in off state the switch unit by state transformation,
The 1.8V voltage output port of the force download port USB-BOOT and power management chip that make central processing unit, which are in, disconnects shape
State, at this point, port will not still disappear, mobile terminal still can carry out normal communication with computer, can carry out data exchange
Deng operation.Downloading switching device provided in an embodiment of the present invention, design is simple, and may be implemented can be light in the case where being not necessarily to tear machine open
Existing force download port function is eased out to realize that force download operates, evade it is common tear machine operation open, avoiding tearing open machine operation can
Energy bring damage, the loss after sale of reduction improve efficiency, and user-friendly, promote user experience.
Detailed description of the invention
A kind of hardware structural diagram of Fig. 1 mobile terminal of each embodiment to realize the present invention；
Fig. 2 is a kind of communications network system architecture diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram for downloading switching device provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of mobile terminal provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of mobile terminal provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram for downloading switching device provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of mobile terminal provided in an embodiment of the present invention；
Fig. 8 is provides a kind of schematic diagram that mobile terminal is communicated with computer using the embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
It should be noted that description and claims of the invention are received and the term " first " in above-mentioned attached drawing, " the
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone, plate
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer etc. move
The fixed terminals such as dynamic terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special
Except element for moving purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware structural diagram of its mobile terminal of each embodiment to realize the present invention, the shifting
Dynamic terminal 100 may include: RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108, the components such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Perhaps certain components or different component layouts are combined.
It is specifically introduced below with reference to all parts of the Fig. 1 to mobile terminal:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 101 can also be communicated with network and other equipment by wireless communication.Any communication can be used in above-mentioned wireless communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to omit within the scope of not changing the essence of the invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, by radio frequency unit 101 or WiFi module 102 it is received or
The audio data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103
Audio output relevant to the specific function that mobile terminal 100 executes can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 may include loudspeaker, buzzer etc..
A/V input unit 104 is for receiving audio or video signal.A/V input unit 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case where telephone calling model.
Microphone 1042 can be implemented various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify the application of mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can
To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc.
It is one or more, specifically herein without limitation.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be the function that outputs and inputs of realizing mobile terminal as two independent components, but in certain embodiments, it can
The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically
It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Embodiment to facilitate the understanding of the present invention, the communications network system that mobile terminal of the invention is based below into
Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system architecture diagram provided in an embodiment of the present invention, the communication network system
System is the LTE system of universal mobile communications technology, which includes UE (User Equipment, the use of successively communication connection
Family equipment) (the land Evolved UMTS Terrestrial Radio Access Network, evolved UMTS 201, E-UTRAN
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connect with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 may include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling, provides carrying and connection management between EPC203.HSS2032 is all to manage for providing some registers
Such as the function of home location register (not shown) etc, and preserves some related service features, data rates etc. and use
The dedicated information in family.All customer data can be sent by SGW2034, and PGW2035 can provide the IP of UE 201
Address distribution and other functions, PCRF2036 are strategy and the charging control strategic decision-making of business data flow and IP bearing resource
Point, it selects and provides available strategy and charging control decision with charge execution function unit (not shown) for strategy.
IP operation 204 may include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art should know the present invention is not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And the following new network system etc., herein without limitation.
Based on above-mentioned mobile terminal hardware configuration and communications network system, each embodiment of the method for the present invention is proposed.
Please refer to Fig. 3.The embodiment of the present invention provides a kind of downloading switching device 30, is applied to mobile terminal, may be implemented
Mobile terminal force download function, comprising: timing module 31, current potential conversion module 32, switch unit 33, in which:
The timing module 31 for carrying out timework according to the input current potential of VBUS, and is the current potential modulus of conversion
Block 32 exports current potential.
The current potential conversion module 32 is connect with the timing module 31, for the output of the timing module 31 is electric
Position carries out reverse phase conversion, exports current potential for the switch unit 33.
The switch unit 33 is connect with the current potential conversion module 32, for according to the current potential conversion module 32
Output current potential carries out switch work, and makes the force download port USB-BOOT and electricity of central processing unit according to the switch work
The 1.8V voltage output port of source control chip is shorted.
Further, the timing module 31 is used to carry out timework according to the input current potential of VBUS；Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger described
Timing module 31 works, and the timing module 31 exports low potential；At this point, mobile terminal is connect by data line with computer, electricity
Port can normally occur in brain, and mobile terminal can be with computer normal communication；
When mobile terminal, which is connect by data line with computer, port exception occurs, low potential is inputted at the end VBUS at this time,
The VBUS low potential triggers the timing module 31 and starts timework, and the timing module 31 is not tied in default timing time
High potential is exported before beam, exports low potential after default timing time.Wherein, the default timing time can be according to need
Set (such as being set as 5 seconds, 10 seconds, 15 seconds).
Further, the current potential conversion module 32 is used to the output current potential of the timing module 31 carrying out reverse phase to turn
It changes；Include:
When the output current potential of the timing module 31 is high potential, the current potential conversion module 32 is by the timing module
The high potential of 31 outputs is converted to low potential；
When the output current potential of the timing module 31 is low potential, the current potential conversion module 32 is by the timing module
The high potential of 31 outputs is converted to high potential.
Further, the switch unit 33 is used to carry out switch work according to the output current potential of the current potential conversion module 32
Make, and makes the force download port USB-BOOT of central processing unit and the 1.8V electricity of power management chip according to the switch work
Output port is pressed to be shorted；Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the timing module 31 exports low potential,
Output is converted as high potential by the current potential conversion module 32, is in close state the switch unit 33, is made centre
The 1.8V voltage output port of the force download port USB-BOOT and power management chip that manage device are in an off state；
When there is port exception, low potential is inputted at the end VBUS, the timing module 31 starts timework, in timing
Export high potential before being not finished, convert and exported as low potential by the current potential conversion module 32, make the switch unit 33 by
Closed state is changed on state, makes the force download port USB-BOOT of the central processing unit and 1.8V of power management chip
Voltage output port is in connection status by off-state；The timing module 31 exports low potential after timing, passes through
The current potential conversion module 32 converts output as high potential, is in off state the switch unit 33 by state transformation,
The 1.8V voltage output port of the force download port USB-BOOT and power management chip that make central processing unit are by connection status
It is in an off state.
The embodiment of the present invention provides a kind of downloading switching device, and mobile terminal force download function may be implemented.In port
When normal, VBUS is normal, i.e., mobile terminal is connect by data line with computer, and port can normally occur in computer, and VBUS is at this time
High potential, the high potential of VBUS can't trigger timing module work, and timing module exports low potential, converted by the current potential
High potential is exported after module, is in close state the switch unit generation, to make the force download end of central processing unit
The 1.8V voltage output port of mouth USB-BOOT and power management chip is in an off state, and mobile terminal can be with computer at this time
Normal communication；When there is port exception, a low potential is inputted at the end VBUS, triggering timing module starts timework, counts
When be not finished before timing module output high potential, by the current potential conversion module 32 convert output into low potential, make described in open
It closes unit 33 and on state is changed by closed state, make the force download port USB-BOOT and power management of central processing unit
The 1.8V voltage output port of chip is in connection status, at this point, mobile terminal is passed through number in timing module timing course
Computer is connected according to line, will appear port at this time, mobile terminal can carry out normal communication with computer, can carry out data exchange etc.
Operation；The timing module exports low potential after timing, converts and is exported as high potential by the current potential conversion module,
It is in off state the switch unit by state transformation, makes the force download port USB-BOOT and electricity of central processing unit
The 1.8V voltage output port of source control chip is in an off state, at this point, port will not still disappear, mobile terminal still may be used
To carry out normal communication with computer, the operation such as data exchange can be carried out.
Downloading switching device provided in an embodiment of the present invention, design is simple, may be implemented without in the case where tearing machine open
There is force download port function easily to realize that force download operates, evades common machine of tearing open and operate, avoid tearing machine operation open
Possible damage, the loss after sale of reduction, improves efficiency, and user-friendly, promotes user experience.
Please refer to Fig. 4, Fig. 5 and Fig. 8.The embodiment of the present invention provides a kind of mobile terminal 300, it can be achieved that force download function
It can, comprising: central processing unit 10, power management chip 20, downloading switching device 30 and data-interface 40, in which:
The central processing unit 10 includes force download port USB-BOOT；
The power management chip 20 includes a 1.8V voltage output port；
The data-interface 40 connects the mobile terminal 300 by data line with computer 400 for connecting data line
It connects；
The downloading switching device 30 makes the force download of the central processing unit for the input current potential according to VBUS
The 1.8V voltage output port of port USB-BOOT and the power management chip is shorted.
Further, the downloading switching device 30, comprising: timing module 31, current potential conversion module 32, switch unit
33, in which:
The timing module 31 for carrying out timework according to the input current potential of VBUS, and is the current potential modulus of conversion
Block 32 exports current potential.
The current potential conversion module 32 is connect with the timing module 31, for the output of the timing module 31 is electric
Position carries out reverse phase conversion, exports current potential for the switch unit 33.
The switch unit 33 is connect with the current potential conversion module 32, for according to the current potential conversion module 32
Output current potential carries out switch work, and makes the force download port USB-BOOT and electricity of central processing unit according to the switch work
The 1.8V voltage output port of source control chip is shorted.
Further, the timing module 31 is used to carry out timework according to the input current potential of VBUS；Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger described
Timing module 31 works, and the timing module 31 exports low potential；At this point, mobile terminal is connect by data line with computer, electricity
Port can normally occur in brain, and mobile terminal can be with computer normal communication；
When mobile terminal, which is connect by data line with computer, port exception occurs, low potential is inputted at the end VBUS at this time,
The VBUS low potential triggers the timing module 31 and starts timework, and the timing module 31 is not tied in default timing time
High potential is exported before beam, exports low potential after default timing time.Wherein, the default timing time can be according to need
Set (such as being set as 5 seconds, 10 seconds, 15 seconds).
Further, the current potential conversion module 32 is used to the output current potential of the timing module 31 carrying out reverse phase to turn
It changes；Include:
When the output current potential of the timing module 31 is high potential, the current potential conversion module 32 is by the timing module
The high potential of 31 outputs is converted to low potential；
When the output current potential of the timing module 31 is low potential, the current potential conversion module 32 is by the timing module
The high potential of 31 outputs is converted to high potential.
Further, the switch unit 33 is used to carry out switch work according to the output current potential of the current potential conversion module 32
Make, and makes the force download port USB-BOOT of central processing unit and the 1.8V electricity of power management chip according to the switch work
Output port is pressed to be shorted；Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the timing module 31 exports low potential,
Output is converted as high potential by the current potential conversion module 32, is in close state the switch unit 33, is made centre
The 1.8V voltage output port of the force download port USB-BOOT and power management chip that manage device are in an off state；
When there is port exception, low potential is inputted at the end VBUS, the timing module 31 starts timework, in timing
Export high potential before being not finished, convert and exported as low potential by the current potential conversion module 32, make the switch unit 33 by
Closed state is changed on state, makes the force download port USB-BOOT of the central processing unit and 1.8V of power management chip
Voltage output port is in connection status by off-state；The timing module 31 exports low potential after timing, passes through
The current potential conversion module 32 converts output as high potential, is in off state the switch unit 33 by state transformation,
The 1.8V voltage output port of the force download port USB-BOOT and power management chip that make central processing unit are by connection status
It is in an off state.
The embodiment of the present invention provides a kind of mobile terminal, and force download function may be implemented.When port is normal, VBUS is just
Often, i.e., mobile terminal is connect by data line with computer, and port can normally occur in computer, and VBUS is high potential at this time, VBUS's
High potential can't trigger timing module work, and timing module exports low potential, high by exporting after the current potential conversion module
Current potential is in close state switch unit generation, thus make the force download port USB-BOOT of central processing unit with
The 1.8V voltage output port of power management chip is in an off state, and mobile terminal can be with computer normal communication at this time；?
When there is port exception, a low potential is inputted at the end VBUS, triggering timing module starts timework, and timing is fixed before being not finished
When module export high potential, convert and is exported as low potential by the current potential conversion module 32, make the switch unit 33 by closing
Closed state is changed on state, makes the force download port USB-BOOT of central processing unit and the 1.8V electricity of power management chip
Pressure output port is in connection status, at this point, mobile terminal is connected into computer by data line in timing module timing course,
It will appear port at this time, mobile terminal can carry out normal communication with computer, can carry out the operation such as data exchange；The timing
Module exports low potential after timing, converts output by the current potential conversion module as high potential, keeps the switch single
Member is in off state by state transformation, makes the force download port USB-BOOT and power management chip of central processing unit
1.8V voltage output port is in an off state, at this point, port will not still disappear, mobile terminal still can be carried out with computer
Normal communication can carry out the operation such as data exchange.
Mobile terminal provided in an embodiment of the present invention, including downloading switching device, design is simple, may be implemented without tearing machine open
In the case where can easily occur force download port function to realize force download operate, evade it is common tear open machine operation,
It avoids tearing the possible damage of machine operation open, the loss after sale of reduction improves efficiency, and user-friendly, promotes user's body
It tests.
Technical solution of the present invention is described in further detail with reference to embodiments.
Embodiment 1:
Please refer to Fig. 6.
In the present embodiment, the timing module 31 by taking timer as an example, current potential conversion module 32 by taking phase inverter as an example, open
It closes unit 33 to be illustrated by taking the switching circuit of p-type metal-oxide-semiconductor as an example, but it should be recognized that technical solution of the present invention is not
It is confined to above-mentioned element or module, such as: switching circuit is not limited to p-type metal-oxide-semiconductor, also may include N-type metal-oxide-semiconductor, NPN
Type triode, PNP type triode etc..
The embodiment of the present invention provides a kind of downloading switching device 30, is applied to mobile terminal, it is strong that mobile terminal may be implemented
Download function processed, comprising: timer 31, phase inverter 32, p-type metal-oxide-semiconductor 33, in which:
The timer 31 for carrying out timework according to the input current potential of VBUS, and exports for the phase inverter 32
Current potential.Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger described
Timer 31 works, and the timer 31 exports low potential；At this point, mobile terminal is connect by data line with computer, computer meeting
Normally there is port, mobile terminal can be with computer normal communication；
When mobile terminal, which is connect by data line with computer, port exception occurs, low potential is inputted at the end VBUS at this time,
The VBUS low potential triggers the timer 31 and starts timework, and the timer 31 is before default timing time is not finished
High potential is exported, exports low potential after default timing time.Wherein, the default timing time can according to need into
Row setting, in the present embodiment, default timing time is set as 5 seconds.
The phase inverter 32 is connect with the timer 31, for the output current potential of the timer 31 to be carried out reverse phase
Conversion exports current potential for the p-type metal-oxide-semiconductor 33.Include:
When the output current potential of the timer 31 is high potential, height that the phase inverter 32 exports the timer 31
Current potential is converted to low potential；
When the output current potential of the timer 31 is low potential, height that the phase inverter 32 exports the timer 31
Current potential is converted to high potential.
The p-type metal-oxide-semiconductor 33 is connect with the phase inverter 32, for being carried out according to the output current potential of the phase inverter 32
Work is switched, and makes the force download port USB-BOOT and power management chip of central processing unit according to the switch work
1.8V voltage output port is shorted.Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the timer 31 exports low potential, warp
It crosses phase inverter 32 and converts output as high potential, be in close state the p-type metal-oxide-semiconductor 33, make under the pressure of central processing unit
The 1.8V voltage output port of load port USB-BOOT and power management chip is in an off state；
When there is port exception, input low potential at the end VBUS, the timer 31 starts timework, timing not
High potential is exported before terminating, convert and is exported as low potential by the phase inverter 32, makes the p-type metal-oxide-semiconductor 33 by closed state
It is changed on state, makes the force download port USB-BOOT of central processing unit and the 1.8V voltage output of power management chip
Port is in connection status by off-state；The timer 31 exports low potential after timing, by the phase inverter
32 convert output as high potential, are in off state the p-type metal-oxide-semiconductor 33 by state transformation, make the strong of central processing unit
The 1.8V voltage output port of download port USB-BOOT and power management chip processed are in an off state by connection status.
The embodiment of the present invention provides a kind of downloading switching device, and mobile terminal force download function may be implemented.In port
When normal, VBUS is normal, i.e., mobile terminal is connect by data line with computer, and port can normally occur in computer, and VBUS is at this time
High potential, the high potential of VBUS can't trigger runs, and timer exports low potential, by exporting after the phase inverter
High potential is in close state the p-type metal-oxide-semiconductor generation, to make the force download port USB-BOOT of central processing unit
It is in an off state with the 1.8V voltage output port of power management chip, mobile terminal can be with computer normal communication at this time；
When there is port exception, a low potential is inputted at the end VBUS, triggering timer starts timework, and timing is fixed before being not finished
When device export high potential, convert output by the phase inverter 32 as low potential, makes the p-type metal-oxide-semiconductor 33 by closed state turn
Become on state, makes the force download port USB-BOOT of central processing unit and the 1.8V voltage output end of power management chip
Mouth is in connection status, at this point, mobile terminal is connected computer by data line in timer timing course, will appear at this time
Port, mobile terminal can carry out normal communication with computer, can carry out the operation such as data exchange；The timer is in timing knot
Low potential is exported after beam, is converted output by the phase inverter as high potential, is changed into the p-type metal-oxide-semiconductor by state
Closed state makes at the force download port USB-BOOT of central processing unit and the 1.8V voltage output port of power management chip
In off-state, at this point, port will not still disappear, mobile terminal still can carry out normal communication with computer, can carry out
The operation such as data exchange.
Downloading switching device provided in an embodiment of the present invention, design is simple, may be implemented without in the case where tearing machine open
There is force download port function easily to realize that force download operates, evades common machine of tearing open and operate, avoid tearing machine operation open
Possible damage, the loss after sale of reduction, improves efficiency, and user-friendly, promotes user experience.
Please refer to Fig. 7 and Fig. 8.
In the present embodiment, the timing module 31 by taking timer as an example, current potential conversion module 32 by taking phase inverter as an example, open
Pass unit 33 is by taking the switching circuit of p-type metal-oxide-semiconductor as an example, data-interface 40 is illustrated by taking TYPE-C interface as an example, but needs
Bright, technical solution of the present invention is not limited to above-mentioned element or module, such as: switching circuit is not limited to p-type
Metal-oxide-semiconductor also may include N-type metal-oxide-semiconductor, NPN type triode, PNP type triode etc..
The embodiment of the present invention provides a kind of mobile terminal 300, it can be achieved that force download function, comprising: central processing unit 10,
Power management chip 20, downloading switching device 30 and TYPE-C interface 40, in which:
The central processing unit 10 includes force download port USB-BOOT；
The power management chip 20 includes a 1.8V voltage output port；
The TYPE-C interface 40 makes the mobile terminal 300 pass through data line with computer 400 for connecting data line
Connection；
The downloading switching device 30 makes the force download of the central processing unit for the input current potential according to VBUS
The 1.8V voltage output port of port USB-BOOT and the power management chip is shorted.It include: timer 31, phase inverter 32, P
Type metal-oxide-semiconductor 33, in which:
The timer 31 for carrying out timework according to the input current potential of VBUS, and exports for the phase inverter 32
Current potential.Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger described
Timer 31 works, and the timer 31 exports low potential；At this point, mobile terminal is connect by data line with computer, computer meeting
Normally there is port, mobile terminal can be with computer normal communication；
When mobile terminal, which is connect by data line with computer, port exception occurs, low potential is inputted at the end VBUS at this time,
The VBUS low potential triggers the timer 31 and starts timework, and the timer 31 is before default timing time is not finished
High potential is exported, exports low potential after default timing time.Wherein, the default timing time can according to need into
Row setting, in the present embodiment, default timing time is set as 5 seconds.
The phase inverter 32 is connect with the timer 31, for the output current potential of the timer 31 to be carried out reverse phase
Conversion exports current potential for the p-type metal-oxide-semiconductor 33.Include:
When the output current potential of the timer 31 is high potential, height that the phase inverter 32 exports the timer 31
Current potential is converted to low potential；
When the output current potential of the timer 31 is low potential, height that the phase inverter 32 exports the timer 31
Current potential is converted to high potential.
The p-type metal-oxide-semiconductor 33 is connect with the phase inverter 32, for being carried out according to the output current potential of the phase inverter 32
Work is switched, and makes the force download port USB-BOOT and power management chip of central processing unit according to the switch work
1.8V voltage output port is shorted.Include:
When port is normal, VBUS is normal, and it is high potential that VBUS, which inputs current potential, and the timer 31 exports low potential, warp
It crosses phase inverter 32 and converts output as high potential, be in close state the p-type metal-oxide-semiconductor 33, make under the pressure of central processing unit
The 1.8V voltage output port of load port USB-BOOT and power management chip is in an off state；
When there is port exception, input low potential at the end VBUS, the timer 31 starts timework, timing not
High potential is exported before terminating, convert and is exported as low potential by the phase inverter 32, makes the p-type metal-oxide-semiconductor 33 by closed state
It is changed on state, makes the force download port USB-BOOT of central processing unit and the 1.8V voltage output of power management chip
Port is in connection status by off-state；The timer 31 exports low potential after timing, by the phase inverter
32 convert output as high potential, are in off state the p-type metal-oxide-semiconductor 33 by state transformation, make the strong of central processing unit
The 1.8V voltage output port of download port USB-BOOT and power management chip processed are in an off state by connection status.
The embodiment of the present invention provides a kind of mobile terminal, including downloading switching device, may be implemented under mobile terminal pressure
Carry function.When port is normal, VBUS is normal, i.e., mobile terminal is connect by data line with computer, and end can normally occur in computer
Mouthful, VBUS is high potential at this time, and the high potential of VBUS can't trigger runs, and timer exports low potential, passes through institute
High potential is exported after stating phase inverter, is in close state the p-type metal-oxide-semiconductor generation, to make under the pressure of central processing unit
The 1.8V voltage output port of load port USB-BOOT and power management chip is in an off state, and mobile terminal can be at this time
Computer normal communication；When there is port exception, a low potential is inputted at the end VBUS, triggering timer starts timework,
Timer output high potential before timing is not finished converts output by the phase inverter 32 as low potential, makes the p-type metal-oxide-semiconductor
33 are changed on state by closed state, make the force download port USB-BOOT and power management chip of central processing unit
1.8V voltage output port is in connection status, at this point, connecting mobile terminal by data line in timer timing course
Computer, will appear port at this time, and mobile terminal can carry out normal communication with computer, can carry out the operation such as data exchange；Institute
It states timer and exports low potential after timing, convert output by the phase inverter as high potential, make the p-type metal-oxide-semiconductor
It is in off state by state transformation, makes the force download port USB-BOOT and power management chip of central processing unit
1.8V voltage output port is in an off state, at this point, port will not still disappear, mobile terminal still can be carried out with computer
Normal communication can carry out the operation such as data exchange.
Downloading switching device provided in an embodiment of the present invention, design is simple, may be implemented without in the case where tearing machine open
There is force download port function easily to realize that force download operates, evades common machine of tearing open and operate, avoid tearing machine operation open
Possible damage, the loss after sale of reduction, improves efficiency, and user-friendly, promotes user experience.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (9)
1. a kind of downloading switching device, be applied to mobile terminal characterized by comprising timing module, current potential conversion module,
Switch unit, in which:
The timing module for carrying out timework according to the input current potential of VBUS, and exports for the current potential conversion module
Current potential；
The current potential conversion module, connect with the timing module, for the output current potential of the timing module to be carried out reverse phase
Conversion exports current potential for the switch unit；
The switch unit is connect with the current potential conversion module, for according to the output current potential of the current potential conversion module into
Row switchs work, and makes the force download port USB-BOOT and power management chip of central processing unit according to the switch work
1.8V voltage output port be shorted.
2. the apparatus according to claim 1, which is characterized in that the timing module is counted according to the input current potential of VBUS
When work, comprising:
When port is normal, it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger the timing module work,
The timing module exports low potential；
When port exception, low potential is inputted at the end VBUS, the VBUS low potential triggers the timing module and starts timeworker
Make, the timing module exports high potential before default timing time is not finished, and exports low electricity after default timing time
Position.
3. the apparatus of claim 2, which is characterized in that the current potential conversion module is used for the timing module
It exports current potential and carries out reverse phase conversion；Include:
When the output current potential of the timing module is high potential, height that the current potential conversion module exports the timing module
Current potential is converted to low potential；
When the output current potential of the timing module is low potential, height that the current potential conversion module exports the timing module
Current potential is converted to high potential.
4. device according to claim 3, which is characterized in that the switch unit is used for according to the current potential conversion module
Output current potential carry out switch work, and according to the switch work make the force download port USB-BOOT of central processing unit with
The 1.8V voltage output port of power management chip is shorted；Include:
When port is normal, it is high potential that VBUS, which inputs current potential, and the timing module exports low potential, is converted by the current potential
Module converts output as high potential, is in close state the switch unit, makes the force download port of central processing unit
The 1.8V voltage output port of USB-BOOT and power management chip is in an off state；
When port exception, low potential is inputted at the end VBUS, the timing module starts timework, defeated before timing is not finished
High potential out converts output by the current potential conversion module as low potential, is changed into the switch unit by closed state
On state, make central processing unit force download port USB-BOOT and power management chip 1.8V voltage output port by
Off-state is in connection status；The timing module exports low potential after timing, by the current potential conversion module
Output is converted as high potential, the switch unit is in off state by state transformation, makes under the pressure of central processing unit
The 1.8V voltage output port of load port USB-BOOT and power management chip is in an off state by connection status.
5. a kind of mobile terminal characterized by comprising central processing unit, power management chip and downloading switching device,
In:
The central processing unit includes force download port USB-BOOT；
The power management chip includes a 1.8V voltage output port；
The downloading switching device makes the force download port of the central processing unit for the input current potential according to VBUS
The 1.8V voltage output port of USB-BOOT and the power management chip is shorted.
6. mobile terminal according to claim 5, which is characterized in that the downloading switching device, comprising: timing module,
Current potential conversion module, switch unit, in which:
The timing module for carrying out timework according to the input current potential of VBUS, and exports for the current potential conversion module
Current potential；
The current potential conversion module, connect with the timing module, for the output current potential of the timing module to be carried out reverse phase
Conversion exports current potential for the switch unit；
The switch unit is connect with the current potential conversion module, for according to the output current potential of the current potential conversion module into
Row switchs work, and makes the force download port USB-BOOT and power management chip of central processing unit according to the switch work
1.8V voltage output port be shorted.
7. mobile terminal according to claim 6, which is characterized in that the timing module according to the input current potential of VBUS into
Row timework, comprising:
When port is normal, it is high potential that VBUS, which inputs current potential, and the VBUS high potential will not trigger the timing module work,
The timing module exports low potential；
When port exception, low potential is inputted at the end VBUS, the VBUS low potential triggers the timing module and starts timeworker
Make, the timing module exports high potential before default timing time is not finished, and exports low electricity after default timing time
Position.
8. mobile terminal according to claim 7, which is characterized in that the current potential conversion module is used for the timing mould
The output current potential of block carries out reverse phase conversion；Include:
When the output current potential of the timing module is high potential, height that the current potential conversion module exports the timing module
Current potential is converted to low potential；
When the output current potential of the timing module is low potential, height that the current potential conversion module exports the timing module
Current potential is converted to high potential.
9. mobile terminal according to claim 8, which is characterized in that the switch unit is used to be converted according to the current potential
The output current potential of module carries out switch work, and makes the force download port USB- of central processing unit according to the switch work
The 1.8V voltage output port of BOOT and power management chip is shorted；Include:
When port is normal, it is high potential that VBUS, which inputs current potential, and the timing module exports low potential, is converted by the current potential
Module converts output as high potential, is in close state the switch unit, makes the force download port of central processing unit
The 1.8V voltage output port of USB-BOOT and power management chip is in an off state；
When port exception, low potential is inputted at the end VBUS, the timing module starts timework, defeated before timing is not finished
High potential out converts output by the current potential conversion module as low potential, is changed into the switch unit by closed state
On state, make central processing unit force download port USB-BOOT and power management chip 1.8V voltage output port by
Off-state is in connection status；The timing module exports low potential after timing, by the current potential conversion module
Output is converted as high potential, the switch unit is in off state by state transformation, makes under the pressure of central processing unit
The 1.8V voltage output port of load port USB-BOOT and power management chip is in an off state by connection status.
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| CN110519422A (en) * | 2019-08-12 | 2019-11-29 | Oppo（重庆）智能科技有限公司 | Custom model trigger circuit, printed circuit board, terminal device |
| CN110557748A (en) * | 2019-07-29 | 2019-12-10 | 惠州Tcl移动通信有限公司 | detection circuit based on control chip, mobile terminal and data line |
| CN110727626A (en) * | 2019-09-24 | 2020-01-24 | 广东以诺通讯有限公司 | Method for implementing forced downloading by terminal |
| CN110996315A (en) * | 2019-12-05 | 2020-04-10 | 努比亚技术有限公司 | Terminal downloading method and device and terminal equipment |
| WO2020215970A1 (en) * | 2019-04-25 | 2020-10-29 | 维沃移动通信有限公司 | Power control apparatus and method, and terminal device |
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| WO2020215970A1 (en) * | 2019-04-25 | 2020-10-29 | 维沃移动通信有限公司 | Power control apparatus and method, and terminal device |
| US12022399B2 (en) | 2019-04-25 | 2024-06-25 | Vivo Mobile Communication Co., Ltd. | Power control device, method, and terminal device |
| CN110557748A (en) * | 2019-07-29 | 2019-12-10 | 惠州Tcl移动通信有限公司 | detection circuit based on control chip, mobile terminal and data line |
| CN110519422A (en) * | 2019-08-12 | 2019-11-29 | Oppo（重庆）智能科技有限公司 | Custom model trigger circuit, printed circuit board, terminal device |
| CN110727626A (en) * | 2019-09-24 | 2020-01-24 | 广东以诺通讯有限公司 | Method for implementing forced downloading by terminal |
| CN110996315A (en) * | 2019-12-05 | 2020-04-10 | 努比亚技术有限公司 | Terminal downloading method and device and terminal equipment |
| CN110996315B (en) * | 2019-12-05 | 2024-03-22 | 努比亚技术有限公司 | Terminal downloading method and device and terminal equipment |
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