CN117591452A - External wake-up circuit of equipment and external wake-up method thereof - Google Patents
External wake-up circuit of equipment and external wake-up method thereof Download PDFInfo
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- CN117591452A CN117591452A CN202311328468.9A CN202311328468A CN117591452A CN 117591452 A CN117591452 A CN 117591452A CN 202311328468 A CN202311328468 A CN 202311328468A CN 117591452 A CN117591452 A CN 117591452A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 159
- 230000005059 dormancy Effects 0.000 claims abstract description 13
- 230000007958 sleep Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
- G06F13/24—Handling requests for interconnection or transfer for access to input/output bus using interrupt
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4418—Suspend and resume; Hibernate and awake
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
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Abstract
The application discloses an external wake-up circuit of equipment and an external wake-up method thereof, wherein the external wake-up circuit comprises: the awakened module comprises an external awakening interrupt pin and an awakened end serial port communication receiving pin, and the external awakening interrupt pin is connected with the awakened end serial port communication receiving pin in parallel. The external wake-up method comprises the following steps: when the awakened-end serial port communication receiving pin receives an awakening signal, the external awakening interrupt pin connected with the awakened-end serial port communication receiving pin in parallel synchronously receives the awakening signal; when the external awakening interrupt pin receives the awakening signal, interrupting the dormancy state of the awakened module so as to awaken the awakened module; after the awakened module is awakened, the external awakening interrupt pin shields the awakening signal received by the awakened end serial port communication receiving pin. The method has the advantages of simplifying circuit design, reducing equipment manufacturing material cost and the like.
Description
Technical Field
The present disclosure relates to the field of external wake-up technology of devices, and in particular, to an external wake-up circuit of a device and an external wake-up method thereof.
Background
As a battery-powered device, maintaining a longer endurance is a key indicator for improving user experience, and is also an important issue often faced by research and development personnel, and in general, forcing the device to enter a sleep state when the device does not need to continuously operate is a basic power saving means. Whether the equipment is exhausted or enters a dormant state, the equipment cannot sense whether the outside is connected with a communication cable or not, and data exchange cannot be performed in time, so that the equipment is very unfriendly to the situation that data records stored by the equipment are required to be acquired in time or/and frequently through a communication port or other communication operations are required to be frequently executed.
In order to solve the above-mentioned problems, a scheme is generally adopted in the related art that a trigger key or a switch is added to an external wake-up interrupt pin, and after a device is woken up by an artificial key, a data communication operation is performed.
Disclosure of Invention
In order to optimize a wake-up circuit of the related conventional technology, the application provides an external wake-up circuit of a device and an external wake-up method thereof.
In one aspect, the present application provides an external wake-up circuit for a device, which may include:
the awakened module comprises an external awakening interrupt pin and an awakened end serial port communication receiving pin, and the external awakening interrupt pin is connected with the awakened end serial port communication receiving pin in parallel.
According to the technical scheme, the external awakening interrupt pin of the awakened module is connected with the awakened end serial port communication receiving pin in parallel, and the working state of the equipment is controlled through the software program, so that the triggering key or switch of external awakening of the equipment is removed while the normal work of the communication port is not affected, the number of metal contacts exposed outside the equipment is reduced, the design of an application circuit of the equipment is simplified, the more compact and small product volume is realized, the lower material and processing cost are realized, and the material cost of manufacturing the equipment is reduced.
The present application may be further configured in a preferred example to:
the external awakening circuit of the equipment can further comprise an external awakening module, wherein the external awakening module comprises an awakening end serial port communication receiving pin and an awakening end serial port communication transmitting pin, the awakened module further comprises an awakened end serial port communication transmitting pin, the awakened end serial port communication transmitting pin is connected with the awakening end serial port communication receiving pin, and the awakened end serial port communication receiving pin is connected with the awakening end serial port communication transmitting pin.
By adopting the technical scheme, the awakened module and the external awakening module can be communicated through the serial port.
The present application may be further configured in a preferred example to:
the external wake-up module further comprises a wake-up end power pin and a wake-up end grounding pin, the wake-up end power pin is connected with the wake-up end power pin, and the wake-up end grounding pin is connected with the wake-up end grounding pin.
In the above technical scheme, when the awakened module is powered off, the external awakened module can charge the awakened module while the awakened module and the external awakened module perform serial port communication.
The present application may be further configured in a preferred example to:
the awakening module comprises a first voltage stabilizing tube, a second voltage stabilizing tube, a third voltage stabilizing tube, a first resistor, a second resistor, a third resistor, a sixth resistor, an awakened end first external contact, an awakened end second external contact, an awakened end third external contact and an awakened end fourth external contact, wherein the external awakening interrupt pin, the first resistor and the second resistor are connected in series to form an external awakening interrupt branch, the awakened end serial port communication receiving pin and the second resistor are connected in series to form an awakened end serial port communication receiving branch, the external awakening interrupt branch and the awakened end serial port communication receiving branch are connected in parallel and then are connected in series with the awakened end first external contact, the external awakened interrupt pin is connected with the awakened end grounding pin after being connected with the first voltage stabilizing tube, the awakened end serial port communication receiving pin is connected with the awakened end grounding pin after being connected with the third voltage stabilizing tube in series, the awakened end serial port communication transmitting pin is connected with the awakened end grounding pin after being connected with the awakened end serial third resistor, the awakened end serial port communication receiving pin is connected with the awakened end external contact, and the external contact is connected with the awakened end grounding pin after being connected with the fourth power source end.
The present application may be further configured in a preferred example to:
the external wake-up module comprises a wake-up end serial port communication receiving pin, a wake-up end serial port communication transmitting pin, a wake-up end power pin, a wake-up end grounding pin, a fourth resistor, a fifth resistor, a fourth voltage stabilizing tube, a fifth voltage stabilizing tube, a wake-up end first external contact, a wake-up end second external contact, a wake-up end third external contact and a wake-up end fourth external contact, wherein the wake-up end serial port communication receiving pin is connected with the wake-up end fourth external contact after being connected with the fourth resistor in series, the wake-up end serial port communication transmitting pin is connected with the wake-up end third external contact after being connected with the fifth resistor in series, the wake-up end serial port communication receiving pin is connected with the wake-up end grounding pin after being connected with the fifth voltage stabilizing tube in series, and the wake-up end serial port communication transmitting pin is connected with the wake-up end grounding pin after being connected with the fourth voltage stabilizing tube.
In the technical scheme, the design of the application circuit of the equipment is simplified, and the more compact and small product volume, lower material and processing cost are realized, so that the material cost of manufacturing the equipment is reduced.
The present application may be further configured in a preferred example to:
when the device reaches a predetermined area (e.g., within a particular game base), the device automatically enters a sleep state.
By adopting the technical scheme, the energy consumption of the equipment can be reduced.
In another aspect, the present application provides an external wake-up method applied to an external wake-up circuit of the above device, which may include the following steps:
the method comprises the following steps:
when the awakened-end serial port communication receiving pin receives an awakening signal, the external awakening interrupt pin connected with the awakened-end serial port communication receiving pin in parallel synchronously receives the awakening signal;
when the external awakening interrupt pin receives the awakening signal, interrupting the dormancy state of the awakened module so as to awaken the awakened module;
after the awakened module is awakened, the external awakening interrupt pin shields the awakening signal received by the awakened end serial port communication receiving pin.
Aspects of another aspect of the present application may be further configured in a preferred example to:
the external wake-up method may further include the steps of:
when the awakening end serial port communication sending pin sends an awakening signal to the awakened end serial port communication receiving pin to awaken the awakened module, serial port communication is carried out between the awakened module and an external awakening module; the communication method for serial communication between the awakened module and the external awakening module comprises the following steps:
a awakening end serial port communication transmitting pin of the external awakening module transmits a read-write signal to an awakened end serial port communication receiving pin of the awakened module;
and the awakened-end serial port communication sending pin of the awakened module sends the data stored in the equipment to the awakened-end serial port communication receiving pin of the external awakening module.
Aspects of another aspect of the present application may be further configured in a preferred example to:
the external wake-up method may further include the steps of:
when the external awakening module finishes reading and writing data stored in the equipment, an awakening end serial port communication sending pin of the external awakening module sends a sleep signal to an awakened end serial port communication receiving pin of the awakened module, and the external awakening interrupt pin connected with the awakened end serial port communication receiving pin in parallel synchronously receives the sleep signal;
after the external awakening interrupt pin receives the dormancy signal, interrupting the awakening state of the awakened module to enable the awakened module to enter the dormancy state.
Aspects of another aspect of the present application may be further configured in a preferred example to:
the external wake-up method may further include the steps of:
and when the third external contact of the awakened end and the fourth external contact of the awakened end of the awakened module are respectively contacted with the second external contact of the awakened end and the first external contact of the awakened end of the external awakening module, the external awakening module charges the equipment.
The application range of the external wake-up circuit is not limited to portable equipment and serial communication equipment, and the application range of the external wake-up circuit can be expanded and applied to circuit designs of various electronic products.
In summary, compared with the prior art, the application has at least the following beneficial effects:
1. according to the external awakening circuit of the equipment, the external awakening interrupt pin INT of the awakened module is connected in parallel with the awakened serial port communication receiving pin RX, and the working state of the equipment is controlled through the software program, so that the triggering key or switch of the external awakening of the equipment is removed while the normal work of the communication port is not influenced, the number of metal contacts exposed outside the equipment is reduced, the design of an application circuit of the equipment is simplified, the more compact and small product volume and lower material and processing cost are realized, and the material cost of the manufacturing equipment is reduced.
2. According to the external awakening circuit of the equipment, the external awakening interrupt pin INT of the awakened module is connected with the awakened serial port communication receiving pin RX in parallel, so that the number of metal contacts outside the equipment is not increased while the external awakening function is increased, and the external artificial key awakening function of the small-sized equipment is realized.
3. The external wake-up circuit of the equipment realizes the function of connecting the equipment with the reader-writer, namely reading the data stored in the equipment, does not need to wait for the equipment to read the data after charging, improves the efficiency of reading the data stored in the equipment, and provides better user experience.
Drawings
Fig. 1 is a schematic diagram of an external wake-up circuit of the device of the present application.
Fig. 2 is a circuit diagram of a awakened module of the present application.
Fig. 3 is a circuit diagram of an external wake-up module of the present application.
Fig. 4 is a flow chart of an external wake-up method of the external wake-up circuit applied to a device.
Fig. 5 is a flow chart of a preferred example of the external wake-up method of the present application.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an external wake-up circuit schematic diagram of the device according to this embodiment is shown, where the external wake-up circuit of the device specifically includes:
the awakened module is arranged inside the equipment and comprises an external awakening interrupt pin INT and an awakened end serial port communication receiving pin RX, and the external awakening interrupt pin INT is connected with the awakened end serial port communication receiving pin RX in parallel.
The external awakening module comprises an awakening end serial port communication receiving pin RX 'and an awakening end serial port communication transmitting pin TX', the awakened module further comprises an awakened end serial port communication transmitting pin TX, the awakened end serial port communication transmitting pin TX is connected with the awakening end serial port communication receiving pin RX ', and the awakened end serial port communication receiving pin RX is connected with the awakening end serial port communication transmitting pin TX'.
The external wake-up module further comprises a wake-up end power supply pin VCC and a wake-up end ground pin GND ', the wake-up end power supply pin VCC is connected with the wake-up end power supply pin VCC ', and the wake-up end ground pin GND is connected with the wake-up end ground pin GND '.
As shown in fig. 2, the circuit diagram of the awakened module in this embodiment is shown, the awakened module P includes a first voltage regulator D1, a second voltage regulator D2, a third voltage regulator D3, a first resistor R1, a second resistor R2, a third resistor R3, a sixth resistor R6, an awakened-end first external contact 1, an awakened-end second external contact 2, an awakened-end third external contact 3, and an awakened-end fourth external contact 4, where the external awakening interrupt pin INT, the first resistor R1, and the second resistor R2 are connected in series to form an external awakened-end serial communication receiving branch, the external awakened interrupt branch is connected in parallel with the awakened-end serial communication receiving branch in series to form an awakened-end serial communication receiving branch, the external awakened-end first external contact 1, the external awakened interrupt pin INT is connected in series with the first voltage regulator D1 and then connected to the awakened-end GND, the awakened-end serial-connection pin INT is connected, the awakened-end second external contact 3 is connected with the awakened-end serial-end communication receiving pin after the awakened-end third contact 3, the awakened-end serial-end communication receiving pin is connected with the external contact 3 and the awakened-end third contact 4 is connected with the external contact 3, and the awakened-end serial-end communication receiving pin is connected with the external contact 3.
As shown in fig. 3, the external wake-up module circuit diagram of this embodiment is shown, the external wake-up module P 'includes a wake-up port serial port communication receiving pin RX', a wake-up port serial port communication transmitting pin TX ', a wake-up port power supply pin VCC', a wake-up port grounding pin GND ', a fourth resistor R4, a fifth resistor R5, a fourth voltage stabilizing tube D4, a fifth voltage stabilizing tube D5, a wake-up port first external contact 1', a wake-up port second external contact 2', a wake-up port third external contact 3', and a wake-up port fourth external contact 4', wherein the wake-up port serial port communication receiving pin RX' is connected in series with the fourth resistor R4 and then is connected with the wake-up port fourth external contact 4', the wake-up port communication transmitting pin TX' is connected in series with the fifth resistor R5 and then is connected with the wake-up port grounding pin GND ', the wake-up port serial port communication transmitting pin TX' is connected in series with the fourth voltage stabilizing tube D4 and then is connected with the wake-up port grounding pin GND ', and the wake-up port communication transmitting pin TX' is connected with the wake-up port grounding pin GND ', and the wake-up port first external contact 1'.
As shown in fig. 4, the external wake-up method flowchart of the external wake-up circuit applied to the device in this embodiment includes the following steps:
s1, when the awakened-end serial port communication receiving pin receives an awakening signal, synchronously receiving the awakening signal by the external awakening interrupt pin connected with the awakened-end serial port communication receiving pin in parallel;
s2, when the external awakening interrupt pin receives the awakening signal, interrupting the dormant state of the awakened module so as to awaken the awakened module;
s3, after the awakened module is awakened, the external awakening interrupt pin shields the awakening signal received by the awakened end serial port communication receiving pin.
In order to read and write the data stored in the device, the external wake-up method further comprises the following steps:
when the awakening end serial port communication sending pin sends an awakening signal to the awakened end serial port communication receiving pin to awaken the awakened module, serial port communication is carried out between the awakened module and an external awakening module; the communication method for serial communication between the awakened module and the external awakening module comprises the following steps:
a awakening end serial port communication transmitting pin of the external awakening module transmits a read-write signal to an awakened end serial port communication receiving pin of the awakened module;
and the awakened-end serial port communication sending pin of the awakened module sends the data stored in the equipment to the awakened-end serial port communication receiving pin of the external awakening module.
In order to complete reading and writing the data stored in the device, the device can reenter the sleep state, and the external wake-up method further comprises the following steps:
when the external awakening module finishes reading and writing data stored in the equipment, an awakening end serial port communication sending pin of the external awakening module sends a sleep signal to an awakened end serial port communication receiving pin of the awakened module, and the external awakening interrupt pin connected with the awakened end serial port communication receiving pin in parallel synchronously receives the sleep signal;
after the external awakening interrupt pin receives the dormancy signal, interrupting the awakening state of the awakened module to enable the awakened module to enter the dormancy state.
In order to charge the device, the external wake-up method further comprises the steps of:
and when the third external contact of the awakened end and the fourth external contact of the awakened end of the awakened module are respectively contacted with the second external contact of the awakened end and the first external contact of the awakened end of the external awakening module, the external awakening module charges the equipment.
Example 2
This embodiment should be understood to include at least all of the features of the foregoing embodiments, and be further modified based thereon; the external wake-up method in this embodiment is shown in fig. 5, where the wake-up module is disposed in the locator, the external wake-up module is disposed in the reader, and the external contact of the locator is connected to the external contact of the corresponding reader, and the external wake-up method specifically includes the following steps:
initializing a reader-writer, and configuring a awakening end serial port communication transmitting pin TX 'and a awakening end serial port communication receiving pin RX' of the reader-writer into a serial port mode;
the reader-writer sends a communication request signal to the locator through a wake-up end serial port communication sending pin TX';
when the locator receives the communication request signal, if the locator is in an awakening state, the locator returns a signal for normal response to the reader-writer locator, otherwise, the locator returns a signal for overtime failure to receive the normal response to the reader-writer locator;
the awakening end serial port communication transmitting pin TX ' is configured into a GPIO mode, the awakening end serial port communication transmitting pin TX ' outputs a high level firstly and then pulls down the high level, when the level is pulled down to trigger an external awakening interrupt pin INT of the positioner to interrupt the sleep state of the positioner, the positioner is awakened, when the positioner is awakened, the positioner shields awakening signals transmitted by the awakening end serial port communication transmitting pin TX ', the awakened end serial port communication receiving pin RX and the awakened end serial port communication transmitting pin TX in the positioner are configured into a serial port communication mode, and meanwhile, the awakening end serial port communication receiving pin RX ' and the awakening end serial port communication transmitting pin TX ' in the reader are also configured into a serial port communication mode;
the locator and the reader-writer are in serial communication through a awakened-end serial communication receiving pin RX, an awakened-end serial communication transmitting pin TX, an awakened-end serial communication receiving pin RX 'and an awakened-end serial communication transmitting pin TX', wherein the awakened-end serial communication receiving pin RX is connected with the awakened-end serial communication transmitting pin TX ', and the awakened-end serial communication transmitting pin TX is connected with the awakened-end serial communication receiving pin RX';
after serial communication is completed between the locator and the reader, the reader sends a dormancy instruction to a awakened serial port communication receiving pin RX through an awakened serial port communication sending pin TX', and synchronously receives the dormancy instruction with an external awakening interrupt pin INT connected in parallel with the awakened serial port communication receiving pin RX, and the dormancy instruction received by the external awakening interrupt pin INT enables the locator to interrupt the awakened state, so that the locator reenters the dormancy state.
Example 3
This embodiment should be understood to include at least all of the features of the foregoing embodiments, and be further modified based thereon; in this embodiment, the awakened module is disposed in the offline GPS bird tracker, and uses a GPS chip as a main control MCU, where the GPS chip not only supports a hardware communication serial port, but also has an external awakening interrupt pipe teaching INT; in the embodiment, only 4 metal contacts are exposed outside the offline GPS bird tracker, and the offline GPS bird tracker is only periodically awakened in the process of tracking the target flight, searches GNSS satellite signals, acquires geographic and time data such as the current location coordinates of the tracked target, and does not have external data communication capability; the off-line GPS bird tracker can only carry out communication report positioning record through the connection of the exposed metal contact and the special reader-writer after reaching the flight destination, and can only carry out charging in the special reader-writer.
Example 4
This embodiment should be understood to include at least all of the features of the foregoing embodiments, and be further modified based thereon; in this embodiment, the awakened module is disposed in wearable devices such as a child watch or an intelligent bracelet, and many wearable devices such as a child watch or an intelligent bracelet need external awakening and communication simultaneously, and these wearable devices can adopt a mode that a serial communication receiving end of the awakened end is connected in parallel with an external interrupt pipe, so that the circuit design of an external hardware interface is simplified.
It can be clearly understood by those skilled in the art that, not only the serial communication device, any communication port with a data receiving pin can be designed in parallel with an external wake-up interrupt pin to realize an equivalent function.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. An external wake-up circuit for a device, comprising: the awakened module comprises an external awakening interrupt pin and an awakened end serial port communication receiving pin, and the external awakening interrupt pin is connected with the awakened end serial port communication receiving pin in parallel.
2. The external wake-up circuit of claim 1, further comprising an external wake-up module, the external wake-up module comprising a wake-up port serial port communication receiving pin and a wake-up port serial port communication transmitting pin, the wake-up module further comprising a wake-up port serial port communication transmitting pin, the wake-up port serial port communication transmitting pin being connected with the wake-up port serial port communication receiving pin, the wake-up port serial port communication receiving pin being connected with the wake-up port serial port communication transmitting pin.
3. The external wake-up circuit of claim 2, wherein the waked-up module further comprises a waked-up power pin and a waked-up ground pin, the external wake-up module further comprising a waked-up power pin and a wake-up ground pin, the waked-up power pin being coupled to the waked-up power pin, the waked-up ground pin being coupled to the wake-up ground pin.
4. The external wake-up circuit of the device according to claim 3, wherein the wake-up module comprises a first voltage regulator, a second voltage regulator, a third voltage regulator, a first resistor, a second resistor, a third resistor, a sixth resistor, a first external contact of a wake-up terminal, a second external contact of a wake-up terminal, a third external contact of a wake-up terminal and a fourth external contact of a wake-up terminal, the external wake-up interrupt pin, the first resistor and the second resistor are connected in series to form an external wake-up interrupt branch, the wake-up terminal serial port communication receiving pin and the second resistor are connected in series to form a wake-up terminal serial port communication receiving branch, the external wake-up interrupt branch and the wake-up terminal serial port communication receiving branch are connected in parallel and then are connected in series to the first external contact of the wake-up terminal, the wake-up terminal serial port communication receiving pin is connected in series to the second voltage regulator and then is connected to the ground pin, the wake-up terminal serial port communication receiving pin is connected in series to the third voltage regulator and then is connected to the ground pin, the wake-up terminal serial port communication receiving pin is connected to the third voltage regulator and the wake-up terminal communication pin is connected to the ground pin, and the third external contact is connected to the external contact.
5. The external wake-up circuit of claim 3, wherein the external wake-up module comprises a wake-up serial port communication receiving pin, a wake-up serial port communication transmitting pin, a wake-up power pin, a wake-up ground pin, a fourth resistor, a fifth resistor, a fourth voltage regulator tube, a fifth voltage regulator tube, a wake-up first external contact, a wake-up second external contact, a wake-up third external contact and a wake-up fourth external contact, the wake-up serial port communication receiving pin is connected with the wake-up fourth external contact after being connected with the fourth resistor in series, the wake-up serial port communication transmitting pin is connected with the wake-up third external contact after being connected with the fifth resistor in series, the wake-up serial port communication receiving pin is connected with the wake-up ground pin after being connected with the fifth voltage regulator tube in series, the wake-up serial port communication transmitting pin is connected with the wake-up ground pin after being connected with the fourth voltage regulator tube, and the wake-up power pin is connected with the wake-up first external contact.
6. The external wake-up circuit of the device of claim 1, further comprising: and when the equipment reaches the preset area, the equipment automatically enters a dormant state.
7. An external wake-up method applied to the external wake-up circuit of the device of claim 1, comprising the steps of:
when the awakened-end serial port communication receiving pin receives an awakening signal, the external awakening interrupt pin connected with the awakened-end serial port communication receiving pin in parallel synchronously receives the awakening signal;
when the external awakening interrupt pin receives the awakening signal, interrupting the dormancy state of the awakened module so as to awaken the awakened module;
after the awakened module is awakened, the external awakening interrupt pin shields the awakening signal received by the awakened end serial port communication receiving pin.
8. The external wakeup method of claim 7, further comprising the step of:
when the awakening end serial port communication sending pin sends an awakening signal to the awakened end serial port communication receiving pin to awaken the awakened module, serial port communication is carried out between the awakened module and an external awakening module; the communication method for serial communication between the awakened module and the external awakening module comprises the following steps:
a awakening end serial port communication transmitting pin of the external awakening module transmits a read-write signal to an awakened end serial port communication receiving pin of the awakened module;
and the awakened-end serial port communication sending pin of the awakened module sends the data stored in the equipment to the awakened-end serial port communication receiving pin of the external awakening module.
9. The external wakeup method of claim 7, further comprising the step of:
when the external awakening module finishes reading and writing data stored in the equipment, an awakening end serial port communication sending pin of the external awakening module sends a sleep signal to an awakened end serial port communication receiving pin of the awakened module, and the external awakening interrupt pin connected with the awakened end serial port communication receiving pin in parallel synchronously receives the sleep signal;
after the external awakening interrupt pin receives the dormancy signal, interrupting the awakening state of the awakened module to enable the awakened module to enter the dormancy state.
10. The external wakeup method of claim 7, further comprising the step of:
and when the third external contact of the awakened end and the fourth external contact of the awakened end of the awakened module are respectively contacted with the second external contact of the awakened end and the first external contact of the awakened end of the external awakening module, the external awakening module charges the equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311328468.9A CN117591452B (en) | 2023-10-13 | 2023-10-13 | External wake-up circuit of equipment and external wake-up method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311328468.9A CN117591452B (en) | 2023-10-13 | 2023-10-13 | External wake-up circuit of equipment and external wake-up method thereof |
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| CN117591452A true CN117591452A (en) | 2024-02-23 |
| CN117591452B CN117591452B (en) | 2024-06-14 |
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Citations (10)
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| CN117591452B (en) | 2024-06-14 |
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