CN106534405A - Pin control method and smart terminal - Google Patents
Pin control method and smart terminal Download PDFInfo
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- CN106534405A CN106534405A CN201610837926.5A CN201610837926A CN106534405A CN 106534405 A CN106534405 A CN 106534405A CN 201610837926 A CN201610837926 A CN 201610837926A CN 106534405 A CN106534405 A CN 106534405A
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- control circuit
- charging
- intelligent terminal
- control
- key switch
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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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Abstract
The application provides a pin control method. The method comprises the step of setting a switch control circuit and a charging control circuit in a smart terminal, wherein the charging control circuit is located between a volume key switch and a volume interface of the smart terminal and connected with the switch control circuit; the switch control circuit is located between the forced downloading control pin and a control power source of the smart terminal; when the volume key switch is in a closed status, the charging control circuit discharges and then breaks over the switch control circuit after the discharging is finished, thereby enabling the forced downloading control pin to short-connect with the control power source. Visually, through the technical scheme of the application, the smart terminal can enter the forced downloading mode only through the volume key switch, thereby avoiding the tedious complete machine disassembling process in the prior art, the cost in the mobile phone repairing is lowered.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of pin control method.The application also relates to one kind
Intelligent terminal.
Background technology
With the continuous development of science and technology, smart mobile phone increasingly becomes a part indispensable during people live.By
Broken down during use unavoidably in smart mobile phone, and at present the use range of smart mobile phone become it is increasingly wider and
User of service becomes more and more, therefore, how to be minimized workload is processed for the failure of smart mobile phone, also become intelligence
One of aspect that energy mobile phone production firm is paid attention to.
The failure machine for either occurring during manufacturer's production of intelligent mobile phone, or user is by the failure reprocessed after sale
, in these smart mobile phones that break down, there is failure machine of the certain amount by solve problem by upgrade-system program in machine,
These failure machine great majority are all to be unable to normal boot-strap, if technical staff or maintenance personal want to carry out system to these machines
Program is upgraded, then the smart mobile phone of the failure must be made to enter force download pattern.
And for current smart terminal product (including smart mobile phone and tablet device), manufacturer design when
The consideration for security standpoint is waited, does not possess the interface into force download pattern in the state of whole machine, will enter this strong
Corresponding test point on the necessary short circuit intelligent terminal mainboard of downloading mode technical staff processed.As shown in figure 1, in prior art
The Some principles schematic diagram of force download pattern.For the CPU that current platform is commonly used, technical staff is needed certain specified
One pin (i.e. force download control pin) is shorted to 1.8v power supplys, is inserted into USB line, and the intelligent terminal is allowed for access pressure
Downloading mode, technical staff could carry out mandatory upgrade more new procedures by computer under force download pattern to intelligent terminal.
Inventor is had found after the failure machine by returning to user is studied, if making intelligence by existing mode
Terminal enter force download pattern, technical staff firstly the need of whole machine is taken apart, could be to the pcb board in intelligent terminal at
Reason.And can by into force download pattern carry out system program more newly arrive solve failure intelligent terminal be all whole machine shape
State, current intelligent terminal common design it is relatively thin, inevitably used many glue to instead of original buckle and screw, therefore
Technical staff is extremely difficult when disassembling to whole machine.Meanwhile, the process disassembled will also tend to cause casing or parts
Damage, so as to cause cost increase and user it is discontented.
As can be seen here, how to enable a technician to make the intelligence on the premise of not disassembling the mainboard of intelligent terminal
The intelligent terminal is entered force download pattern in order to technical staff, is become by the force download control pin short circuit in energy terminal
Those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
The invention provides a kind of pin control method, with the base do not dismantled to the intelligent terminal under whole machine state
On plinth, the connection between pin therein and power supply is controlled, the intelligent terminal of failure is entered in order to technical staff
Force download pattern.The method is applied in the intelligent terminal for include charging control circuit and ON-OFF control circuit, described to fill
Electric control circuit is arranged between the volume key switch and volume interface of the intelligent terminal, and with the ON-OFF control circuit
Connection, the ON-OFF control circuit are arranged between the force download controlling switch of the intelligent terminal and control power supply, are write from memory
Recognize in cut-off state, the method is comprised the following steps：
The charging control circuit is charged when the volume key switch is off；
When the volume key switch is in closure state, the charging control circuit is discharged, and in discharge off
Afterwards the ON-OFF control circuit is turned on, so that the force download controlling switch and the control power supply short circuit.
Preferably, the ON-OFF control circuit is made up of triode, pull-up resistor and pull down resistor, wherein：
The base stage of the triode is connected with the charging control circuit；
The emitter stage of the triode is connected with the control power supply；
The colelctor electrode of the triode is connected with the force download controlling switch by the pull-up resistor, the pressure
Download controlling switch to be grounded by the pull down resistor.
Preferably, the charging control circuit is made up of charging capacitor, wherein：
One end of the charging capacitor be connected to the path between the volume key switch and the volume interface and with
The base stage is connected, the other end ground connection of the charging capacitor.
Preferably, the charging control circuit also includes diode and control resistance, wherein：
One end of the control resistance is connected with the charging capacitor and the base stage, the other end of the control resistance
It is connected to the path.
The positive pole of the diode is connected to the path, and the negative pole of the diode controls resistance, institute with described respectively
State charging capacitor and base stage connection.
Preferably, it is characterised in that：
The charging control circuit is charged by the charging capacitor and the diode；
The charging control circuit is discharged by the control resistance and the charging capacitor.
Accordingly, the application proposes a kind of intelligent terminal, comprising charging control circuit and ON-OFF control circuit, described to fill
Electric control circuit is arranged between the volume key switch and volume interface of the intelligent terminal, and with the ON-OFF control circuit
Connection, the ON-OFF control circuit are arranged between the force download controlling switch of the intelligent terminal and control power supply, are write from memory
Recognize in cut-off state, wherein：
The charging control circuit, for being charged when the volume key switch is off, and is working as
The volume key switch is discharged when being in bonding state, and after discharge off is turned on the ON-OFF control circuit；
The ON-OFF control circuit, for conducting when will the force download controlling switch with it is described control power supply it is short
Connect.
Preferably, the ON-OFF control circuit is made up of triode, pull-up resistor and pull down resistor, wherein：
The base stage of the triode is connected with the charging control circuit；
The emitter stage of the triode is connected with the control power supply；
The colelctor electrode of the triode is connected with the force download controlling switch by the pull-up resistor, the pressure
Download controlling switch to be grounded by the pull down resistor.
Preferably, the charging control circuit is made up of charging capacitor, wherein：
One end of the charging capacitor be connected to the path between the volume key switch and the volume interface and with
The base stage is connected, the other end ground connection of the charging capacitor.
Preferably, the charging control circuit also includes diode and control resistance, wherein：
One end of the control resistance is connected with the charging capacitor and the base stage, the other end of the control resistance
It is connected to the path.
The positive pole of the diode is connected to the path, and the negative pole of the diode controls resistance, institute with described respectively
State charging capacitor and base stage connection.
Preferably, the charging control circuit is charged by the charging capacitor and the diode；
The charging control circuit is discharged by the control resistance and the charging capacitor.
By the technical scheme of the proposition of the application, by arranging ON-OFF control circuit and charge control in intelligent terminal
Circuit, and charging control circuit is between the volume key switch and volume interface of intelligent terminal, and it is electric with switch control rule
Road connects, and ON-OFF control circuit is located between the force download controlling switch of intelligent terminal and control power supply.When volume key is opened
When pass is in closure state, the charging control circuit is discharged, and after discharge off is led the ON-OFF control circuit
It is logical, so that the force download controlling switch and the control power supply short circuit.It can be seen that the technical scheme by the application, need to only lead to
Crossing volume key switch can just make intelligent terminal enter force download pattern, so as to the whole machine for avoiding loaded down with trivial details in prior art is torn open
Process is unloaded, the cost during reparation mobile phone is reduced.
Description of the drawings
Fig. 1 is the Some principles schematic diagram of force download pattern in prior art；
Fig. 2 is a kind of schematic flow sheet of pin control method that the embodiment of the present application is proposed；
Fig. 3 is the circuit diagram of a kind of ON-OFF control circuit that the application specific embodiment is proposed and charging control circuit；
Fig. 4 is a kind of structural representation of intelligent terminal that the application is proposed.
Specific embodiment
As stated in the Background Art, in order that intelligent terminal enters force download pattern, need under the pressure by intelligent terminal
Carry pin to be shorted on control power supply.And in the prior art, intelligent terminal does not possess under whole machine state and draws force download
The short interface with control power supply short circuit of pin.Accordingly, it would be desirable to intelligent terminal whole machine is dismantled, the above-mentioned two on mainboard could be connect
Mouthful short circuit, this aspect are wasted time and energy and increased the cost for repairing intelligent terminal, on the other hand, dismounting process it is also possible to
The damage of intelligent terminal can be caused, the discontented of user is in turn resulted in.
Therefore, in order to realize making intelligent terminal enter force download pattern under whole machine state, the application proposes that one kind is drawn
Pin control method, arranges ON-OFF control circuit and charging control circuit between intelligent terminal, and ON-OFF control circuit is used for controlling
Force download pin processed and the connected state for controlling power supply, charging control circuit are used for realizing the control to ON-OFF control circuit.
ON-OFF control circuit is turned on by charging control circuit, the force download pin of intelligent terminal can be made to be in control power supply and connected
The state for connecing, now intelligent terminal will be into force download pattern.And charging control circuit can be by the volume of intelligent terminal
Key control.Intelligent terminal is made to enter force download mould so as to, on the basis of whole machine dismounting is not carried out to intelligent terminal, realize
Formula.
A kind of schematic flow sheet of pin control method of the application proposition is illustrated in figure 1, it should be noted that this Shen
Please be applied in the intelligent terminal for include charging control circuit and ON-OFF control circuit, charging control circuit is arranged at intelligent end
Between the volume key switch and volume interface at end, and it is connected with ON-OFF control circuit, ON-OFF control circuit is arranged at intelligent end
Between the force download controlling switch at end and control power supply, acquiescence is in cut-off state.Specifically, the application includes following step
Suddenly：
S201, charging control circuit are charged when volume key switch is off.
In embodiments herein, it is intended to realized by ON-OFF control circuit to force download pin and control power supply
The change of connected state.ON-OFF control circuit is arranged between the force download controlling switch of intelligent terminal and control power supply.
When needing intelligent terminal to enter force download pattern, then ON-OFF control circuit is turned on, so that force download pin and control
State of the power supply in connection；When not needing intelligent terminal to enter force download pattern, then ON-OFF control circuit is disconnected, with
Force download pin is made to be in disconnected state with control power supply.
In order to realize that preferably the state of ON-OFF control circuit being controlled, the application is opened in the volume key of intelligent terminal
Between pass and volume interface, charging control circuit is set.And the charging and discharging process of charging control circuit is by volume
Key switch is controlling.Meanwhile, charging control circuit is also connected with ON-OFF control circuit, to realize the control to ON-OFF control circuit
System.
In embodiments herein, when volume key switch is off, charging control circuit will be filled
Electricity.At the end of the charging to charging control circuit, ON-OFF control circuit can be cut off by charging control circuit, so that force download
Pin is in disconnected state with control power supply.Now, intelligent terminal will be in optional downloading mode.
, just need to open the force download mould of intelligent terminal due to only in the situation (special circumstances such as maintenance) of minority
Formula, so in general, intelligent terminal is required in optional downloading mode.In embodiments herein, by charging
Control circuit is controlled to the connected state of ON-OFF control circuit, and charging control circuit is at the end of its charging process,
ON-OFF control circuit can be disconnected, make with this intelligent terminal enter optional downloading mode.In view of in most cases, all
Intelligent terminal is needed to be in optional downloading mode.In this application, when volume key switch is off, to control of charging
Circuit processed is charged, as, during the normal use of intelligent terminal, volume key switch is mostly in the state for disconnecting, institute
Ensure that intelligent terminal during normal use, charging control circuit is greatly all in the state for charging such that it is able to protect
Card intelligent terminal is in optional downloading mode during normal use.
When volume key switch is in closure state, charging control circuit is discharged S202, and will after discharge off
ON-OFF control circuit is turned on.
In embodiments herein, when volume key switch is in bonding state, charging control circuit will be discharged
Process, and after discharge process terminates, ON-OFF control circuit can be turned on, so that force download pin is in control power supply
The state of connection.Now, intelligent terminal will be in force download pattern.
In general, only just needing under the pressure of unlatching intelligent terminal in the situation (special circumstances such as maintenance) of minority
Load pattern.In embodiments herein, when volume key switch is in bonding state, charging control circuit will carry out discharging
Journey, and only after discharge process terminates, just ON-OFF control circuit can be turned on.The charging process of charging control circuit needs
Regular hour, it is therefore desirable to pin the volume key switch regular hour, mobile phone can be just caused to enter force download pattern.Due to
During normally intelligent terminal is used, the long situation by volume key switch seldom occurs, so as to ensure that intelligent terminal
During normal use, force download pattern will not be entered.Further, intelligent terminal is being needed to enter force download mould
During formula, can be realized by volume key switch into force download pattern by length, so as to avoid the whole machine of intelligent terminal
Take apart.
In the preferred embodiment of the application, ON-OFF control circuit is made up of triode, pull-up resistor and pull down resistor.
And the connected mode of each electronic devices and components is as follows：
The base stage of triode is connected with charging control circuit；
The emitter stage of triode is connected with control power supply；
The colelctor electrode of triode is connected with force download controlling switch by pull-up resistor,
Force download controlling switch is grounded by pull down resistor.
It should be noted that in above-mentioned ON-OFF control circuit, triode serves the effect of intelligent switch.And by filling
Electric control circuit is controlled to triode.And specific control method is as follows：
Charging control circuit controls the state of triode by the voltage of control base stage.When charging is finished, control of charging
The voltage that circuit processed is loaded into the voltage at transistor base with control power supply is loaded into transistor emitter is identical.Now, three
, with emitter stage all in high level state, triode cut-off, so as to force download controlling switch is not already connected to for the base stage of pole pipe
On control power supply, intelligent terminal will be in optional downloading mode.
When discharge off, charging control circuit is loaded into the voltage at transistor base for 0.The now base stage of triode
In low level state, the emitter stage of triode is in the state of high level, and triode ON, so as to force download controlling switch
It is connected on control power supply, intelligent terminal will be in optional downloading mode.
Also, the charge and discharge process of above-mentioned charging control circuit can be by volume key switch to control.So as to
Can realize making intelligent terminal enter force download pattern in the case where not dismantling the whole machine of intelligent terminal.
In addition, in above-mentioned ON-OFF control circuit, force download controlling switch is by pull-up resistor and the collection of triode
Electrode connects, and is grounded by pull down resistor.Why in the two ends connection pull-up resistor of force download controlling switch and drop-down
Resistance, be in order to stablize the circuit environment residing for force download controlling switch, so that during the on or off of triode,
The voltage change of force download controlling switch is more steady, so as to play the work of protection to the circuit after force download controlling switch
With.
It should be noted that the composition of ON-OFF control circuit disclosed above and connected mode are what the application was proposed
Preferred embodiment, based on the design of the application, those skilled in the art may also take on control circuit others group to one kind
Into and connected mode, this can't affect the protection domain of the application.
In the preferred embodiment of the application, charging control circuit can be made up of charging capacitor, and charging capacitor connects
The mode for entering circuit is as follows：
One end of charging capacitor is connected to the path between volume key switch and volume interface and and ON-OFF control circuit
In the base stage of triode be connected, the other end of charging capacitor ground connection.It can be seen that one end of charging capacitor simultaneously with volume key switch,
The base stage of volume interface and triode is connected.
In intelligent terminal, volume interface is connected with the power supply inside intelligent terminal, thus when charging capacitor one end with
When being connected to volume interface, while also can be connected with the power supply inside mobile terminal.If now volume key switch is in disconnection
State, the power supply inside mobile terminal will be charged to charging capacitor.Charging capacitor and above-mentioned switch control rule are electric simultaneously
The base stage of the triode in road is connected, therefore at the end of charging, charging capacitor is connected to one end of volume interface and triode
Base stage voltage it is identical with the voltage of intelligent terminal internal electric source.Now, the state that triode is off.So as to force download
Pin is not attached to control on power supply, and intelligent terminal will be in optional downloading mode.
In addition, in intelligent terminal, volume key switch is connected with ground wire, therefore when one end of charging capacitor is opened with volume key
Close and be connected, and when volume key switch is in closure state, charging capacitor will be connected with ground wire.Now two ends of charging capacitor
It is connected with ground wire, charging capacitor will be in the state of electric discharge.Also, in discharge off, charging capacitor is connected to volume and connects
One end of mouth will be changed into 0 with the voltage of the base stage of triode.Now, triode is the state of conducting.So as to force download pin
Can be connected on control power supply, intelligent terminal will be in force download pattern.
From discussed above, by volume key switch can to the rushing of charging control circuit, discharge process is controlled.
When volume key switch is in the state for disconnecting, it will charging control circuit is charged, when the charging of charging control circuit
At the end of process, the base stage of the triode of ON-OFF control circuit is in high level state (the voltage phase of voltage and internal electric source
Together), now triode cut-off, intelligent terminal will be in optional downloading mode；When volume key switch is in the state of closure,
Charging control circuit will be discharged, at the end of the discharge process of charging control circuit, three poles of ON-OFF control circuit
The base stage of pipe is in low level state (voltage is 0), now triode ON, and intelligent terminal will be in force download pattern.Can
See, by the scheme of the application, only intelligent terminal just need to can be made to enter force download pattern by volume key switch, so as to avoid
Process in prior art to the whole machine dismounting of intelligent terminal.
It should be noted that the composition of ON-OFF control circuit disclosed above and connected mode are what the application was proposed
Preferred embodiment, based on the design of the application, those skilled in the art may also take on control circuit others group to one kind
Into and connected mode, this can't affect the protection domain of the application.
Due to during normally using mobile phone, it is also desirable to using volume key switch.Therefore, when user is normally using
Intelligent terminal, when pressing volume key switch, if the time that user presses is longer, will have probability that mobile phone can be made to enter force download mould
Formula.However, user is during normally intelligent terminal is used, and force download pattern need not be entered.So, if user
During the normal volume key switch using intelligent terminal, intelligent terminal enters force download pattern, it will greatly shadow
Ring the experience of user.
In the preferred embodiment of the application, in order to reduce user during normally intelligent terminal is used, into strong
The probability of downloading mode processed, is also added into diode and control resistance, and the two access in above-mentioned charging control circuit
The mode of charging control circuit is as follows：
One end of control resistance is connected with the base stage of charging capacitor and the triode of ON-OFF control circuit, controls resistance
The other end is connected to the path between volume key switch and volume interface；
The positive pole of diode is connected to the path between volume key switch and volume interface, the negative pole of diode respectively with control
The base stage connection of the triode of resistance processed, charging capacitor and ON-OFF control circuit.
From above-mentioned connected mode, when being charged to charging control circuit, as the positive pole of diode connects
Path to volume key switch and volume interface, and negative pole is connected with charging capacitor.Therefore, in charging control circuit
In charging process, will be charged by charging capacitor and diode.Now diode is the state of conducting, and its resistance is very
Little, the charging control circuit fully charged time will be shorter.Further, as the charging interval of charging control circuit is shorter, make
Obtain when volume key switch is disconnected, the state of high level at the base stage of the triode of ON-OFF control circuit, can be quickly returned to,
And then enable intelligent terminal to be rapidly introduced into optional downloading mode.
When discharging to charging control circuit, as the negative pole of diode is connected with charging capacitor.Now diode
The state being off, charging capacitor can not be by diode discharges, and the circuit that can only be located by controlling resistance is discharged.
Due to control resistance resistance it is larger, hence in so that the discharge time of charging control circuit is longer.Further, due to control of charging
The charging interval of circuit processed is longer, therefore when volume key switch is closed, intelligent terminal can not immediately enter force download
Pattern, what needs were lasting pin volume key switch so that charging control circuit discharge off, if now insert USB line, intelligence simultaneously
Energy terminal can just enter force download pattern.
Generally, user persistently will not pin volume key switch during normally intelligent terminal is used, this
When intelligent terminal hardly enter force download pattern.So as to significantly reduce user in the normal process for using intelligent terminal
In, into the probability of force download pattern.
From discussed above, by increasing diode and control resistance in charging control circuit, can cause to charge
The discharge time of control circuit is longer, now needs to pin volume key switch for a long time, intelligent terminal can just entered and forces
Downloading mode.Due to during normally using intelligent terminal, user typically will not for a long time according to volume key switch, because
This intelligent terminal hardly enters force download pattern.So, increase diode and control in charging control circuit by above-mentioned
The method of resistance, can greatly reduce user when intelligent terminal is normally used, into the probability of force download pattern.
From the description of above example, by arranging ON-OFF control circuit and charge control electricity in intelligent terminal
Road, and charging control circuit is between the volume key switch and volume interface of intelligent terminal, and and ON-OFF control circuit
Connection, ON-OFF control circuit are located between the force download controlling switch of intelligent terminal and control power supply.When volume key switch
In closure state when, the charging control circuit is discharged, and after discharge off by the ON-OFF control circuit turn on,
So that the force download controlling switch and the control power supply short circuit.It can be seen that the technical scheme by the application, need to only pass through
Volume key switch can just make intelligent terminal enter force download pattern, so as to avoid whole machine dismounting loaded down with trivial details in prior art
Process, reduces the cost during reparation mobile phone.
In order to the technological thought of the present invention is expanded on further, in conjunction with specific application scenarios, the technical side to the present invention
Case is illustrated.
As shown in figure 3, the circuit diagram of a kind of ON-OFF control circuit proposed for the application and charging control circuit.Can by figure
Know：
ON-OFF control circuit is by triode Q1, pull-up resistor R3And pull down resistor R4Composition.And each electronic devices and components
Connected mode is as follows：
Triode Q1Base stage be connected with charging control circuit；
Triode Q1Emitter stage with control power supply be connected；
Triode Q1Colelctor electrode pass through pull-up resistor R3It is connected with force download controlling switch,
Force download controlling switch passes through pull down resistor R4Ground connection.
Charging control circuit can be by charging capacitor C2, diode D1And control resistance R1Composition, and each electronics unit device
The mode that part accesses circuit is as follows：
Charging capacitor C2One end be connected to the path between volume key switch and volume interface and with switch control rule electricity
Triode Q in road1Base stage be connected, charging capacitor C2The other end ground connection.It can be seen that charging capacitor C2One end simultaneously and volume
The triode Q of key switch, volume interface and ON-OFF control circuit1Base stage be connected；
Control resistance R1One end and charging capacitor C2And the triode Q of ON-OFF control circuit1Base stage connection, control
Resistance R1The other end be connected to the path between volume key switch and volume interface；
Diode D1Positive pole be connected to the path between volume key switch and volume interface, the negative pole of diode respectively with
Control resistance R1, charging capacitor C2And the triode Q of ON-OFF control circuit1Base stage connection.
Connected mode based on more than, a kind of scheme of pin control method that the application specific embodiment is proposed are as follows：
ON-OFF control circuit mainly passes through triode Q1To control whether, into force download pattern, to work as Q1During conducting, current collection
Pole is turned on emitter stage, R3、R4It is changed into high at node, as force download pattern, works as Q1During cut-off, colelctor electrode is broken with emitter stage
Open, R3、R4Node is in R4In the presence of be changed into low, as general mode.
While triode Q1Conducting and cut-off state controlled by charging control circuit, as volume key switch S1Closure
When, charging control circuit will be discharged, electric discharge terminates rear triode Q1Base stage be in low level state, now Q1Conducting,
Intelligent terminal will be into force download pattern.
As volume key switch S1During disconnection, electricity will be charged to charging control circuit, charging terminates rear triode Q1Base
Pole is in high level state, now Q1Cut-off, intelligent terminal will be into force download pattern.
Also, due to diode D1With control resistance R1Effect so that the discharge process of charging control circuit is longer, from
And the long-term process that can just complete to discharge according to volume key switch is needed, therefore reduce user during normal use,
Intelligent terminal enters the probability of force download pattern.
The discussion of the specific embodiment based on more than, below to different key situation, the voltage change in circuit is said
It is bright：
In the application specific embodiment, volume key switch is pressed to Q1Conducting, Q1Base stage and force download control draw
Voltage change at pin is as follows：
When volume key switch is pressed, Q1Base stage at voltage slowly decline, when dropping to a certain degree, force
Download voltage is detected at controlling switch, and in Q1Base stage at voltage when dropping to minimum, force download controlling switch
The voltage at place is maximum, now Q1Conducting, intelligent terminal enter force download pattern.
In the application specific embodiment, volume key switch is disconnected to Q1Disconnect, Q1Base stage, force download controlling switch
The voltage change of the left end of place and control resistance is as follows：
When volume key switch is pressed, Q1Base stage at the very fast rising of voltage, the electricity at force download controlling switch
Pressure rapidly drops to 0, it is seen that Q1The state of disconnection is switched to from the state of conducting in the short period of time.Meanwhile, control electricity
The voltage of the left end of resistance is basically unchanged.
In the application specific embodiment, when repeating to press under high level state volume key switch, Q1Base stage, pressure
Download at controlling switch and control resistance R1Left end voltage change it is as follows：
When repeating to press under high level state volume key switch, Q1Base stage at voltage and force download controlling switch
The voltage at place is basically unchanged, and controls resistance R1Left end voltage then into the trend of change in oscillation.It can be seen that, can't now change
The state (in optional downloading mode) of intelligent terminal.
When repeating to press under low level state volume key switch in the application specific embodiment, Q1Base stage, pressure
Download at controlling switch and control resistance R1Left end voltage change it is as follows：
When repeating to press under high level state volume key switch, Q1Base stage at voltage and force download controlling switch
The voltage at place is basically unchanged, and controls resistance R1Left end voltage then into the trend of change in oscillation.It can be seen that, can't now change
The state (in optional downloading mode) of intelligent terminal.
From the description of embodiments above, by arranging ON-OFF control circuit and charge control in intelligent terminal
Circuit, and charging control circuit is between the volume key switch and volume interface of intelligent terminal, and it is electric with switch control rule
Road connects, and ON-OFF control circuit is located between the force download controlling switch of intelligent terminal and control power supply.When volume key is opened
When pass is in closure state, the charging control circuit is discharged, and after discharge off is led the ON-OFF control circuit
It is logical, so that the force download controlling switch and the control power supply short circuit.It can be seen that the technical scheme by the application, need to only lead to
Crossing volume key switch can just make intelligent terminal enter force download pattern, so as to the whole machine for avoiding loaded down with trivial details in prior art is torn open
Process is unloaded, the cost during reparation mobile phone is reduced.
In order to reach the technical purpose of the application, as shown in figure 4, the application proposes a kind of intelligent terminal, comprising control of charging
Circuit processed 401 and ON-OFF control circuit 402, the charging control circuit are arranged at the volume key switch of the intelligent terminal
Between 403 and volume interface 404, and it is connected with the ON-OFF control circuit, the ON-OFF control circuit is arranged at the intelligence
Between the force download controlling switch 405 of energy terminal and control power supply 406, acquiescence is in cut-off state, wherein：
The charging control circuit, for being charged when the volume key switch is off, and is working as
The volume key switch is discharged when being in bonding state, and after discharge off is turned on the ON-OFF control circuit；
The ON-OFF control circuit, for conducting when will the force download controlling switch with it is described control power supply it is short
Connect.
In specific application scenarios, the ON-OFF control circuit is made up of triode, pull-up resistor and pull down resistor,
Wherein：
The base stage of the triode is connected with the charging control circuit；
The emitter stage of the triode is connected with the control power supply；
The colelctor electrode of the triode is connected with the force download controlling switch by the pull-up resistor, the pressure
Download controlling switch to be grounded by the pull down resistor.
In specific application scenarios, the charging control circuit is made up of charging capacitor, wherein：
One end of the charging capacitor be connected to the path between the volume key switch and the volume interface and with
The base stage is connected, the other end ground connection of the charging capacitor.
In specific application scenarios, the charging control circuit also includes diode and control resistance, wherein：
One end of the control resistance is connected with the charging capacitor and the base stage, the other end of the control resistance
It is connected to the path.
The positive pole of the diode is connected to the path, and the negative pole of the diode controls resistance, institute with described respectively
State charging capacitor and base stage connection.
In specific application scenarios, the charging control circuit is filled by the charging capacitor and the diode
Electricity；
The charging control circuit is discharged by the control resistance and the charging capacitor.
Description from more than, by arranging ON-OFF control circuit and charging control circuit in intelligent terminal, and
Charging control circuit is located between the volume key switch and volume interface of intelligent terminal, and is connected with ON-OFF control circuit, is opened
Close control circuit to be located between force download controlling switch and the control power supply of intelligent terminal.When volume key switch is in closure
During state, the charging control circuit is discharged, and after discharge off is turned on the ON-OFF control circuit, so that described
Force download controlling switch and the control power supply short circuit.It can be seen that the technical scheme by the application, only need to be opened by volume key
Pass can just make intelligent terminal enter force download pattern, so as to avoid whole machine unloading process loaded down with trivial details in prior art, drop
The low cost repaired during mobile phone.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be led to
Cross hardware realization, it is also possible to by software plus necessary general hardware platform mode realizing.Based on such understanding, this
Bright technical scheme can be embodied in the form of software product, and the software product can be stored in non-volatile memories
Medium (can be CD-ROM, USB flash disk, portable hard drive etc.) in, use so that a computer equipment (can be including some instructions
Personal computer, server, or network equipment etc.) perform method described in each implement scene of the invention.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram for being preferable to carry out scene, module in accompanying drawing or
Flow process is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that module in device in implement scene can according to implement scene describe into
Row is distributed in the device of implement scene, it is also possible to carry out one or more dresses that respective change is disposed other than this implement scene
In putting.The module of above-mentioned implement scene can merge into a module, it is also possible to be further split into multiple submodule.
The invention described above sequence number is for illustration only, does not represent the quality of implement scene.
Disclosed above is only that the several of the present invention are embodied as scene, but, the present invention is not limited to this, Ren Heben
What the technical staff in field can think change should all fall into protection scope of the present invention.
Claims (10)
1. a kind of pin control method, it is characterised in that methods described is applied to include charging control circuit and switch control rule
In the intelligent terminal of circuit, the charging control circuit be arranged at the intelligent terminal volume key switch and volume interface it
Between, and be connected with the ON-OFF control circuit, the ON-OFF control circuit is arranged at the force download control of the intelligent terminal
Between pin and control power supply, acquiescence is comprised the following steps in cut-off state, the method：
The charging control circuit is charged when the volume key switch is off；
When the volume key switch is in closure state, the charging control circuit is discharged, and will after discharge off
The ON-OFF control circuit conducting, so that the force download controlling switch and the control power supply short circuit.
2. the method for claim 1, it is characterised in that the ON-OFF control circuit by triode, pull-up resistor and
Pull down resistor is constituted, wherein：
The base stage of the triode is connected with the charging control circuit；
The emitter stage of the triode is connected with the control power supply；
The colelctor electrode of the triode is connected with the force download controlling switch by the pull-up resistor, the force download
Controlling switch is grounded by the pull down resistor.
3. method as claimed in claim 2, it is characterised in that the charging control circuit is made up of charging capacitor, wherein：
One end of the charging capacitor be connected to the path between the volume key switch and the volume interface and with it is described
Base stage is connected, the other end ground connection of the charging capacitor.
4. method as claimed in claim 3, it is characterised in that the charging control circuit also includes diode and control electricity
Resistance, wherein：
One end of the control resistance is connected with the charging capacitor and the base stage, the other end connection of the control resistance
To the path.
The positive pole of the diode is connected to the path, the negative pole of the diode respectively with the control resistance, described fill
Electric capacity and base stage connection.
5. method as claimed in claim 4, it is characterised in that：
The charging control circuit is charged by the charging capacitor and the diode；
The charging control circuit is discharged by the control resistance and the charging capacitor.
6. a kind of intelligent terminal, it is characterised in that comprising charging control circuit and ON-OFF control circuit, the charge control electricity
Road is arranged between the volume key switch and volume interface of the intelligent terminal, and is connected with the ON-OFF control circuit, institute
State ON-OFF control circuit to be arranged between force download controlling switch and the control power supply of the intelligent terminal, acquiescence is in cuts
Only state, wherein：
The charging control circuit, for being charged when the volume key switch is off, and when described
Volume key switch is discharged when being in closure state, and after discharge off is turned on the ON-OFF control circuit；
The ON-OFF control circuit, for conducting when by the force download controlling switch and it is described control power supply short circuit.
7. intelligent terminal as claimed in claim 6, it is characterised in that the ON-OFF control circuit is by triode, pull-up resistor
And pull down resistor composition, wherein：
The base stage of the triode is connected with the charging control circuit；
The emitter stage of the triode is connected with the control power supply；
The colelctor electrode of the triode is connected with the force download controlling switch by the pull-up resistor, the force download
Controlling switch is grounded by the pull down resistor.
8. intelligent terminal as claimed in claim 7, it is characterised in that the charging control circuit is made up of charging capacitor, its
In：
One end of the charging capacitor be connected to the path between the volume key switch and the volume interface and with it is described
Base stage is connected, the other end ground connection of the charging capacitor.
9. intelligent terminal as claimed in claim 8, it is characterised in that the charging control circuit also includes diode and control
Resistance, wherein：
One end of the control resistance is connected with the charging capacitor and the base stage, the other end connection of the control resistance
To the path.
The positive pole of the diode is connected to the path, the negative pole of the diode respectively with the control resistance, described fill
Electric capacity and base stage connection.
10. intelligent terminal as claimed in claim 9, it is characterised in that：
The charging control circuit is charged by the charging capacitor and the diode；
The charging control circuit is discharged by the control resistance and the charging capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837926.5A CN106534405B (en) | 2016-09-21 | 2016-09-21 | Pin control method and intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610837926.5A CN106534405B (en) | 2016-09-21 | 2016-09-21 | Pin control method and intelligent terminal |
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| CN106534405B CN106534405B (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610837926.5A Active CN106534405B (en) | 2016-09-21 | 2016-09-21 | Pin control method and intelligent terminal |
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Cited By (8)
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| CN108647160A (en) * | 2018-06-28 | 2018-10-12 | 努比亚技术有限公司 | USB force downloads circuit, mobile terminal, method for down loading and data line |
| CN108763132A (en) * | 2018-05-18 | 2018-11-06 | 苏州佳世达光电有限公司 | A kind of download upgrading fixture |
| CN109597637A (en) * | 2018-12-10 | 2019-04-09 | 惠州Tcl移动通信有限公司 | Force download device and the method for entering force download mode |
| 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 |
| CN110716891A (en) * | 2019-10-09 | 2020-01-21 | Oppo（重庆）智能科技有限公司 | Forced downloading method, circuit, terminal equipment 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 |
| CN114301486A (en) * | 2021-03-22 | 2022-04-08 | 海信集团控股股份有限公司 | Debugging device and method for WiFi module |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108763132A (en) * | 2018-05-18 | 2018-11-06 | 苏州佳世达光电有限公司 | A kind of download upgrading fixture |
| CN108647160A (en) * | 2018-06-28 | 2018-10-12 | 努比亚技术有限公司 | USB force downloads circuit, mobile terminal, method for down loading and data line |
| CN109597637A (en) * | 2018-12-10 | 2019-04-09 | 惠州Tcl移动通信有限公司 | Force download device and the method for entering force download mode |
| CN109597637B (en) * | 2018-12-10 | 2022-03-25 | 惠州Tcl移动通信有限公司 | Forced downloading device and method for entering forced downloading mode |
| 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 |
| CN110716891A (en) * | 2019-10-09 | 2020-01-21 | Oppo（重庆）智能科技有限公司 | Forced downloading method, circuit, terminal equipment and data line |
| 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 |
| CN114301486A (en) * | 2021-03-22 | 2022-04-08 | 海信集团控股股份有限公司 | Debugging device and method for WiFi module |
| CN114301486B (en) * | 2021-03-22 | 2024-06-04 | 海信集团控股股份有限公司 | Debugging device and method for WiFi module |
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| CN106534405B (en) | 2021-02-23 |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |
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