WO2022135060A1

WO2022135060A1 - Terminal device, nfc clock control method, nfc module, and medium

Info

Publication number: WO2022135060A1
Application number: PCT/CN2021/133839
Authority: WO
Inventors: 吴雄鹏; 盛培培; 许凌; 黄志鑫
Original assignee: 厦门紫光展锐科技有限公司
Priority date: 2020-12-23
Filing date: 2021-11-29
Publication date: 2022-06-30
Also published as: CN112559082A; CN112559082B

Abstract

A terminal device, an NFC clock control method, an NFC module, and a medium. The NFC clock control method comprises: when triggered by a target task, sending a first clock request signal to a clock signal generation module, and sending data corresponding to the target task to a main control module; receiving a first clock signal, the first clock signal being generated by the clock signal generation module after receiving the first clock request signal; receiving an indication that the target task has completed execution returned from the main control module, and ceasing sending the first clock request signal to the clock signal generation module. The described solution can quickly provide a clock signal for an NFC module.

Description

Terminal device and NFC clock control method, NFC module and medium

This application claims the priority of the Chinese patent application with the application number 202011544444.3 and the invention title "terminal device and NFC clock control method, NFC module, medium" filed with the China Patent Office on December 23, 2020, the entire contents of which are by reference Incorporated in this application.

technical field

The present invention relates to the technical field of wireless communication, and in particular, to a terminal device and an NFC clock control method, an NFC module and a medium.

Background technique

In the terminal device, the clock signal of the NFC module is usually provided by the main control module. The main control module is designed with reserved clock signal output pins. Usually, in order to reduce the power consumption of the terminal device, both the NFC module and the main control module may be in a sleep state.

In the sleep state, the main control module cannot provide a clock signal to the NFC module. Therefore, when the NFC module is triggered by a task, it needs to send a clock signal request to the main control module first. The clock signal request generates an interrupt through the general-purpose input output port (GPIO), and then wakes up the main control module through the interrupt, and the main control module outputs the corresponding clock signal.

In the prior art, the clock signal of the NFC module is dependent on the main control module, the clock signal is generated slowly, and the fast startup of the NFC module cannot be realized.

SUMMARY OF THE INVENTION

The embodiments of the present invention solve the technical problem that the NFC module cannot be started quickly.

In order to solve the above technical problems, an embodiment of the present invention provides an NFC clock control method, which includes: when triggered by a target task, sending a first clock request signal to a clock signal generating module, and sending data corresponding to the target task to the main control module; receive a first clock signal, the first clock signal is generated by the clock signal generation module after receiving the first clock request signal; receive the target task execution returned by the main control module The completion instruction stops sending the first clock request signal to the clock signal generating module.

Optionally, the NFC clock control method further includes: after being triggered by the target task, sending a wake-up signal to the main control module, so that the main control module can update the data corresponding to the target task after receiving the wake-up signal. to be processed.

Optionally, the sending a wake-up signal to the main control module after being triggered by the target task includes: sending the first clock request signal to the main control module while sending the first clock request signal to the main control module. the wake-up signal.

Optionally, the sending the first clock request signal to the clock signal generation module includes: outputting a high-level signal to the clock signal generation module, so that the clock generation module receives the high-level signal The first clock signal is then generated and output.

Optionally, the stopping of sending the first clock request signal to the clock signal generation module includes: outputting a low level signal to the clock signal generation module, so that the clock generation module receives the low level signal. Stop generating the first clock signal after the level signal.

In order to solve the above technical problem, an embodiment of the present invention also provides a terminal device, including: an NFC module, a main control module, and a clock signal generation module, wherein: the NFC module is adapted to be triggered by a target task, to all The clock signal generation module sends the first clock request signal, and sends the data corresponding to the target task to the main control module; and, when receiving the instruction that the target task execution completed sent by the main control module is received, Stop sending the first clock request signal to the clock signal generating module; the main control module is adapted to, after receiving the data corresponding to the target task, perform corresponding processing on the data corresponding to the target task, and After the processing is completed, send an indication that the execution of the target task is completed to the NFC module; the clock signal generating module is adapted to generate a first clock signal and output it to the The NFC module; when the first clock request signal is not received, stop generating the first clock signal.

Optionally, the NFC module is further adapted to send a wake-up signal to the main control module after being triggered by the target task.

Optionally, the NFC module is adapted to send a wake-up signal to the main control module while sending the first clock request signal to the clock signal generation module; the main control module is adapted to receive the Wake up after the above wake-up signal.

Optionally, the main control module is further adapted to send a second clock request signal to the clock signal generation module after receiving the wake-up signal; the clock signal generation module is further adapted to receive the wake-up signal. When the second clock request signal is received, a second clock signal is generated and output to the main control module.

Optionally, the NFC module, the first clock request signal sent to the clock signal generation module is a high-level signal; when receiving the instruction sent by the main control module that the execution of the target task is completed, the The first clock request signal is converted from a high-level signal to a low-level signal.

An embodiment of the present invention further provides an NFC module, including: a sending unit, adapted to send a first clock request signal to a clock signal generating module when triggered by a target task, and send data corresponding to the target task to a a main control module; a receiving unit for receiving a first clock signal, the first clock signal is generated by the clock signal generating module after receiving the first clock request signal; a control unit for receiving all When the indication of completion of execution of the target task returned by the main control module is received, the sending of the first clock request signal to the clock signal generation module is stopped.

An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and the computer program is executed by a processor The steps of any one of the NFC clock control methods described above are executed at runtime.

Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:

When triggered by the target task, the NFC module sends a first clock request signal to the clock signal generating module, and sends data corresponding to the target task to the main control module. After receiving the indication of completion of execution of the target task returned by the main control module, stop sending the first clock request to the clock signal generating module. It can be seen that in the process of requesting the first clock signal, the NFC module does not need to participate in the process of the main control module, so the clock signal can be quickly provided to the NFC module to realize the rapid startup of the NFC module.

Description of drawings

1 is a schematic structural diagram of a terminal device in an embodiment of the present invention;

2 is a flowchart of an NFC clock control method in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an NFC module in an embodiment of the present invention.

Detailed ways

From the above, in the prior art, the clock signal of the NFC module is generated by the main control module. The main control module needs to increase the interrupt processing on the software, the clock signal generation is slow, and the fast startup of the NFC module cannot be realized.

In the embodiment of the present invention, in the process of requesting the first clock signal, the NFC module directly sends the first clock request signal to the clock signal generation module, and directly receives the first clock signal output by the clock signal generation module, so no main control is required. The process of the module is involved, so it can quickly provide a clock signal for the NFC module and realize the rapid startup of the NFC module.

In order to make the above objects, features and beneficial effects of the present invention more clearly understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, a terminal device in an embodiment of the present invention is shown. The specific structure and work flow of the terminal device will be described in detail below.

In a specific implementation, the terminal device may include an NFC module 101 , a main control module 102 and a clock signal generation module 103 .

In this embodiment of the present invention, the NFC module 101 may be connected in communication with the main control module 102 and the clock signal generation module 103 . When the NFC module 101 is triggered by the target task, it can send a first clock request signal to the clock signal generating module 103 , and send the data corresponding to the target task to the main control module 102 . In addition, the NFC module 101 may also stop sending the first clock request signal to the clock signal generating module 103 when receiving the instruction sent by the main control module 102 that the execution of the target task is completed.

After receiving the data corresponding to the target task, the main control module 102 may perform corresponding processing on the data corresponding to the target task. After the data corresponding to the target task is processed, the main control module 102 may send an indication that the execution of the target task is completed to the NFC module 101 .

When the clock signal generating module 103 receives the first clock request signal, it can generate the corresponding first clock signal and output it to the NFC module 101; correspondingly, when the first clock request signal is not received, the clock signal generating module 103 can Stop generating the first clock signal.

The specific work flow of the terminal device provided in the above embodiments of the present invention will be described in detail below.

In a specific implementation, the NFC module 101 may be an NFC chip, or other devices with NFC functions. The NFC module 101 is triggered by a target task, and the target task may be a task corresponding to a function that the NFC chip can implement. For example, if the NFC chip can realize the function of an electronic bus card, the target task is to detect the task of swiping the bus card. For another example, if the NFC chip can realize the function of an electronic access control card, the target task is to detect the task of swiping the access control card.

It can be understood that the target task corresponding to the NFC module 101 may also be other types of tasks, and is not limited to the above example.

In this embodiment of the present invention, before the NFC module 101 receives the target task, the NFC module 101 may be in a sleep state considering factors such as the power consumption of the terminal device. After being triggered by the target task, the state of the NFC module 101 is switched from the sleep state to the working state.

In a specific implementation, after being triggered by the target task, the NFC module 101 may send the first clock request signal to the clock signal generating module 103 .

In this embodiment of the present invention, the first clock request signal sent by the NFC module 101 to the clock signal generating module 103 may be a high-level signal. After receiving the high-level signal output by the NFC module 101 , the clock signal generating module 103 may generate a first clock signal and output it to the NFC module 101 . The NFC module 101 receives the first clock signal.

In a specific implementation, when the terminal device is in a sleep state, the main control module 102 may also be in a sleep state. Therefore, the main control module 102 needs to be woken up before it can perform corresponding processing on the data corresponding to the target task sent by the NFC module 101 .

To wake up the main control module 102, in this embodiment of the present invention, after being triggered by the target task, the NFC module 101 may also send a wake-up signal to the main control module 102. After receiving the wake-up signal, the main control module 102 can switch from the sleep state to the working state, and perform corresponding processing on the data corresponding to the target task. After completing the corresponding processing of the data corresponding to the target task, the main control module 102 may send an indication that the execution of the target task is completed to the NFC module 101 .

In this embodiment of the present invention, the NFC module 101 may send a wake-up signal to the main control module 102 while sending the first clock request signal to the main control module 102 . The NFC module 101 may also send a wake-up signal to the main control module 102 before or after sending the first clock request signal to the main control module 102 .

In a specific implementation, the NFC module 101 may stop sending the first clock request signal to the clock signal generating module 103 when receiving the instruction sent by the main control module 102 that the execution of the target task is completed. When the clock signal generating module 103 does not receive the first clock request signal, it stops generating the first clock signal.

In this embodiment of the present invention, the NFC module 101 may output a low-level signal when receiving an indication sent by the main control module 102 that the execution of the target task is completed. After receiving the low-level signal sent by the NFC module 101, the clock signal generating module 103 can stop generating the first clock signal, thereby saving the power consumption of the terminal device.

That is, in this embodiment of the present invention, when the NFC module 101 needs the first clock signal, it can output a high-level signal to the clock signal generation module 103, so that the clock signal generation module 103 generates the first clock signal and outputs it to the NFC module 101; otherwise, when the NFC module 101 enters the sleep state, it can output a low-level signal to the clock signal generating module 103, so that the clock signal generating module 103 stops generating the first clock signal.

In a specific implementation, the clock signal of the main control module 102 may also be generated by the clock signal generating module 103 .

In this embodiment of the present invention, after receiving the wake-up signal, the main control module 102 may send the second clock request signal to the clock signal generation module 103 . After receiving the second clock request signal, the clock signal generating module 103 can correspondingly generate the second clock signal, and output the second clock signal to the main control module 102 .

The second clock request signal sent by the main control module 102 to the clock signal generation module 103 may be a high-level signal.

After completing the corresponding processing of the data corresponding to the target task, the main control module 102 sends an indication that the execution of the target task is completed to the NFC module 101 . If there are no other operations to be performed, the main control module 102 can also enter a sleep state to reduce the power consumption of the terminal device.

In this embodiment of the present invention, the main control module 102 may send a low level to the clock signal generating module 103 when sending an indication that the execution of the target task is completed to the NFC module 101 , or after sending an indication that the execution of the target task is complete to the NFC module 101 . Signal. The clock signal generating module 103 can stop generating the second clock signal after receiving the low-level signal sent by the main control module 102 .

In a specific implementation, the clock signal generating module 103 may include a crystal oscillator, and after receiving the first clock request signal and/or the second clock request signal, the clock signal generating module 103 may control the crystal oscillator to oscillate to output the first clock of the corresponding frequency. a clock signal and/or a second clock signal.

In this embodiment of the present invention, after receiving the first clock request signal sent by the NFC module 101 , the clock signal generation module 103 can also generate the first clock signal and the second clock signal at the same time, and the first clock signal is output to the NFC module 101 , the second clock signal is output to the main control module 102 , so that the main control module 102 does not need to send the second clock request signal to the clock signal generation module 103 again.

In a specific implementation, the main control module 102 may be a main controller, or other components capable of realizing a control function. For the specific circuit and structure of the clock signal generating module 103, reference may be made to the existing clock signal generating circuit, which is not repeated in the embodiment of the present invention.

An embodiment of the present invention further provides an NFC clock control method. Referring to FIG. 2 , the following detailed description is given through specific steps.

In this embodiment of the present invention, the following steps S201 to S203 may be performed by the NFC module.

Step S201, when triggered by the target task, send a first clock request signal to the clock signal generating module, and send the data corresponding to the target task to the main control module.

Step S202, receiving a first clock signal.

Step S203, receiving the indication that the execution of the target task is completed returned by the main control module, and stopping sending the first clock request signal to the clock signal generating module.

The NFC module can be an NFC chip, or other NFC-capable devices. The NFC module is triggered by a target task, and the target task can be a task corresponding to a function that the NFC chip can implement. For example, if the NFC chip can realize the function of an electronic bus card, the target task is to detect the task of swiping the bus card. For another example, if the NFC chip can realize the function of an electronic access control card, the target task is to detect the task of swiping the access control card.

It can be understood that, the target task corresponding to the NFC module may also be other types of tasks, and is not limited to the above example.

In this embodiment of the present invention, before the NFC module receives the target task, the NFC module may be in a sleep state for consideration of factors such as the power consumption of the terminal device. After being triggered by the target task, the state of the NFC module is switched from the sleep state to the working state.

In a specific implementation, after being triggered by the target task, the NFC module may send the first clock request signal to the clock signal generating module.

In this embodiment of the present invention, the first clock request signal sent by the NFC module to the clock signal generating module may be a high-level signal. After receiving the high level signal output by the NFC module, the clock signal generating module can generate the first clock signal and output it to the NFC module. The NFC module receives the first clock signal.

In a specific implementation, when the terminal device is in a sleep state, the main control module may also be in a sleep state. Therefore, the main control module needs to be woken up before it can perform corresponding processing on the data corresponding to the target task sent by the NFC module.

In order to wake up the main control module, in this embodiment of the present invention, after being triggered by the target task, the NFC module may also send a wake-up signal to the main control module. After receiving the wake-up signal, the main control module can switch from the sleep state to the working state, and perform corresponding processing on the data corresponding to the target task. After completing the corresponding processing of the data corresponding to the target task, the main control module can send an indication that the execution of the target task is completed to the NFC module.

In this embodiment of the present invention, the NFC module may send a wake-up signal to the main control module while sending the first clock request signal to the main control module. The NFC module may also send a wake-up signal to the main control module before or after sending the first clock request signal to the main control module.

In a specific implementation, the NFC module may stop sending the first clock request signal to the clock signal generating module when receiving the instruction sent by the main control module that the execution of the target task is completed. The clock signal generating module stops generating the first clock signal when the first clock request signal is not received.

In the embodiment of the present invention, the NFC module may output a low-level signal when receiving the indication that the target task is completed and sent by the main control module. After receiving the low-level signal sent by the NFC module, the clock signal generating module can stop generating the first clock signal, thereby saving the power consumption of the terminal device.

That is, in this embodiment of the present invention, when the NFC module needs the first clock signal, it can output a high-level signal to the clock signal generation module, so that the clock signal generation module generates the first clock signal and outputs it to the NFC module; otherwise , when the NFC module enters the sleep state, it can output a low level signal to the clock signal generating module, so that the clock signal generating module stops generating the first clock signal.

As can be seen from the above, in the embodiment of the present invention, the NFC module does not need to participate in the process of the main control module in the process of requesting the first clock signal, so the clock signal can be quickly provided for the NFC module to realize the rapid startup of the NFC module.

Referring to FIG. 3, an NFC module 101 in an embodiment of the present invention is given, including: a sending unit 301, a receiving unit 302, and a control unit 303, wherein:

The sending unit 301 is adapted to send a first clock request signal to the clock signal generation module when triggered by the target task, and send the data corresponding to the target task to the main control module;

a receiving unit 302, configured to receive a first clock signal, where the first clock signal is generated by the clock signal generating module after receiving the first clock request signal;

The control unit 303 is configured to stop sending the first clock request signal to the clock signal generating module when receiving the indication that the execution of the target task is completed returned by the main control module.

Embodiments of the present invention further provide a computer-readable storage medium, where the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and the computer program is executed by a processor During operation, the steps of the NFC clock control method provided by the above steps S201 to S203 are executed.

In specific implementation, regarding each module/unit included in each device and product described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a part of a software module/unit, a part of which is a software module/unit. is a hardware module/unit.

For example, for each device or product applied to or integrated in a chip, each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program. Running on the processor integrated inside the chip, the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it The units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: ROM, RAM, magnetic disk or optical disk, etc.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims

An NFC clock control method, comprising:

When triggered by the target task, send a first clock request signal to the clock signal generation module, and send the data corresponding to the target task to the main control module;

receiving a first clock signal, where the first clock signal is generated by the clock signal generating module after receiving the first clock request signal;

Receive the indication of completion of execution of the target task returned by the main control module, and stop sending the first clock request signal to the clock signal generation module.
The NFC clock control method according to claim 1, further comprising: after being triggered by the target task, sending a wake-up signal to the main control module, so that the main control module responds to all the signals after receiving the wake-up signal. The data corresponding to the target task is processed.
The NFC clock control method according to claim 2, wherein the sending a wake-up signal to the main control module after being triggered by the target task comprises:

The wake-up signal is sent to the main control module while the first clock request signal is sent to the clock signal generation module.
The NFC clock control method according to claim 1, wherein the sending the first clock request signal to the clock signal generating module comprises:

A high-level signal is output to the clock signal generating module, so that the clock generating module generates and outputs a first clock signal after receiving the high-level signal.
The NFC clock control method according to claim 1, wherein the stopping sending the first clock request signal to the clock signal generating module comprises:

A low-level signal is output to the clock signal generating module, so that the clock generating module stops generating the first clock signal after receiving the low-level signal.
A terminal device, comprising: an NFC module, a main control module and a clock signal generation module, wherein:

The NFC module is adapted to send a first clock request signal to the clock signal generation module when triggered by a target task, and send data corresponding to the target task to the main control module; and, when receiving Stop sending the first clock request signal to the clock signal generating module when the target task execution completion indication sent by the main control module is reached;

The main control module is adapted to, after receiving the data corresponding to the target task, perform corresponding processing on the data corresponding to the target task, and after the processing is completed, send to the NFC module the completion of the execution of the target task. instruct;

The clock signal generating module is adapted to generate a first clock signal and output it to the NFC module when the first clock request signal is received; stop generating all the clock signals when the first clock request signal is not received. the first clock signal.
The terminal device according to claim 6, wherein the NFC module is further adapted to send a wake-up signal to the main control module after being triggered by the target task.
The terminal device according to claim 7, wherein the NFC module is adapted to send a wake-up signal to the main control module while sending the first clock request signal to the clock signal generating module; the The main control module is adapted to wake up after receiving the wake-up signal.
The terminal device according to claim 7, wherein the main control module is further adapted to send a second clock request signal to the clock signal generation module after receiving the wake-up signal; the clock signal The generating module is further adapted to generate a second clock signal and output it to the main control module when receiving the second clock request signal.
The terminal device according to claim 6, wherein, the first clock request signal sent by the NFC module to the clock signal generating module is a high-level signal; When the indication of completion of execution of the target task is given, the first clock request signal is converted from a high-level signal to a low-level signal.
An NFC module, characterized in that it includes:

The sending unit is adapted to, when triggered by the target task, send the first clock request signal to the clock signal generation module, and send the data corresponding to the target task to the main control module;

a receiving unit, configured to receive a first clock signal, where the first clock signal is generated by the clock signal generating module after receiving the first clock request signal;

The control unit is configured to stop sending the first clock request signal to the clock signal generating module when receiving the indication that the execution of the target task is completed returned by the main control module.
A computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, characterized in that the computer program is executed when a processor runs The steps of the NFC clock control method according to any one of claims 1 to 5.