CN114113855A - Electrostatic discharge detection processing method and device and terminal equipment - Google Patents
Electrostatic discharge detection processing method and device and terminal equipment Download PDFInfo
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Abstract
The application provides an electrostatic discharge detection processing method, an electrostatic discharge detection processing device and terminal equipment, wherein the method comprises the following steps: triggering a display serial interface DSI by a display processor to carry out ESD detection; receiving an ESD detection result returned by the DSI; and if the ESD detection result indicates that the screen state is abnormal, triggering interruption by the display processor and recovering the ESD. By utilizing the scheme provided by the application, ESD detection can be effectively carried out on various different display screens, and the power consumption of a system can not be increased.
Description
Technical Field
The application relates to the field of electrostatic discharge detection, in particular to an electrostatic discharge detection processing method and device and terminal equipment.
Background
With the development of modern science and technology, the functions of mobile phones and other intelligent devices with screens gradually tend to be diversified and diversified on the basis of the original functions of the mobile phones and other intelligent devices with screens, and become an indispensable part in human-to-human life. In the use process of electronic products, screen display abnormality, touch screen failure, severe crash and other phenomena may be caused due to static electricity, so that the elimination of static electricity on equipment is an important work.
The detection of Static electricity generally includes two methods, namely hardware and software, and the processing on the software is ESD (electrostatic discharge) detection. The existing mature ESD detection scheme includes an external TE (Tearing Effect) signal method and a screen register reading method, where the register reading method is to read a screen status register every time an ESD process runs, and when a screen ESD is abnormal, a value of the screen status register is abnormal, so that whether the screen ESD is abnormal can be determined by reading the screen status register. However, after the register is read, some screens cannot return the register value within one line time, which may cause the problem of abnormal display such as screen bias. Therefore, the screen reading register method has higher requirements on the compatibility of the display screen; moreover, when the screen is in a normal display state, the corresponding thread needs to be awakened at regular time to perform ESD detection, so that the power consumption of the system is increased.
Disclosure of Invention
The embodiment of the application provides an electrostatic discharge detection processing method and device and terminal equipment, which can effectively perform ESD detection on various different display screens without increasing system power consumption.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
in one aspect, an embodiment of the present application provides an electrostatic discharge detection processing method, including:
triggering a display serial interface DSI by a display processor to carry out ESD detection;
receiving an ESD detection result returned by the DSI;
and if the ESD detection result indicates that the screen state is abnormal, triggering interruption by the display processor and recovering the ESD.
Optionally, the triggering, by the display processor, the DSI for ESD detection includes: and the display processor triggers the DSI to carry out ESD detection according to a set time interval.
Optionally, the triggering, by the display processor, the DSI for ESD detection includes: and when the display processor sends the vertical synchronous signal to the DSI, the display processor synchronously sends an ESD enabling signal to the DSI.
Optionally, the triggering, by the display processor, the DSI for ESD detection further includes: enabling an ESD enabling register arranged in the display processor by the display processor under the condition that ESD detection is needed; accordingly, the display processor synchronously transmitting the ESD enable signal to the DSI comprises: and the display processor synchronously sends an ESD enabling signal to the DSI according to the state of the ESD enabling register.
Optionally, the method further comprises: and the DSI carries out ESD detection according to the ESD enabling signal.
Optionally, the DSI performing ESD detection according to the ESD enable signal includes: the DSI checks whether the ESD enable signal is valid at a rising edge of the vertical synchronization signal; if the data frame is valid, reading the screen state register after the current data frame is processed, and comparing the reading result with an ESD detection standard value; and returning an ESD detection result to the display processor according to the comparison result.
On the other hand, an embodiment of the present application further provides an electrostatic discharge detection processing apparatus, including: a display processor; and the display processor is used for triggering the display serial interface DSI to carry out ESD detection, receiving an ESD detection result returned by the DSI, triggering interruption when the ESD detection result indicates that the screen state is abnormal, and carrying out ESD recovery.
Optionally, the display processor triggers the DSI to perform ESD detection at set time intervals.
Optionally, the display processor is specifically configured to send an ESD enable signal to the DSI synchronously when sending the vertical synchronization signal to the DSI; and the display processor triggers the DSI to carry out ESD detection through the ESD enabling register.
Optionally, the display processor comprises: an ESD enable register; the display processor is specifically used for enabling the ESD enabling register under the condition that ESD detection is required; and synchronously sending an ESD enabling signal to the DSI according to the state of the ESD enabling register.
Optionally, the apparatus further comprises: DSI; and the DSI is used for carrying out ESD detection according to the ESD enabling signal.
Optionally, the DSI is specifically configured to check whether the ESD enable signal is valid on a rising edge of the vertical synchronization signal; and under the condition that the ESD enabling signal is effective, after the current data frame is processed, reading the screen state register, comparing the reading result with an ESD detection standard value, and returning an ESD detection result to the display processor according to the comparison result.
On the other hand, the embodiment of the present application further provides a terminal device, which includes the above electrostatic discharge detection processing apparatus.
In the electrostatic discharge detection processing method and apparatus, and the terminal device provided in the embodiment of the present application, a Display Process Unit (DPU) triggers a Display Serial Interface (DSI) to perform ESD detection. Correspondingly, after the DSI carries out ESD detection, an ESD detection result is returned to the DPU. After the DPU receives the ESD detection result returned by the DSI, if the ESD detection result indicates that the screen state is abnormal, the DPU triggers to interrupt, and ESD recovery is carried out. In the scheme of the embodiment of the application, triggering of ESD detection is not dominated by DSI, but triggered by DPU, and the DPU controls the sending of data frames, so that the problem of abnormal display such as screen deviation caused by the fact that a screen cannot return to a register value within one line of time can be avoided; moreover, because the DSI is triggered to carry out ESD detection in the interaction process of the DPU and the DSI, compared with the prior art, the power consumption of the system can be greatly reduced.
Drawings
FIG. 1 is a flow chart of an electrostatic discharge detection method according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating an interaction process between a DPU and a DSI in an electrostatic discharge detection method according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an electrostatic discharge detection apparatus according to an embodiment of the present application;
fig. 4 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings.
Aiming at the problems of compatibility and system power consumption existing in the existing method for carrying out ESD detection through a screen reading register, the embodiment of the application provides an electrostatic discharge detection processing method and device. Correspondingly, the DPU receives the ESD detection result returned by the DSI, and under the condition that the ESD detection result indicates abnormity, the DPU triggers to be interrupted and carries out ESD recovery.
As shown in fig. 1, it is a flowchart of an electrostatic discharge detection processing method according to an embodiment of the present application, including the following steps:
In a specific application, the DSI triggered by the DPU to perform the ESD detection may be triggered by the DPU according to a set time interval, that is, the DSI is periodically triggered to perform the ESD detection; of course, other ways may also be used to trigger the DSI for ESD detection, and this is not limited in this application.
And 102, receiving an ESD detection result returned by the DSI.
It should be noted that the DSI may specifically perform the ESD detection result by reading the screen status register, where the screen status register stores the current screen status, and specifically may be a numerical value used for indicating the current screen status, and the DSI compares the read numerical value with a normal screen status value (or referred to as an ESD detection standard value), determines whether the screen status is abnormal, and returns the ESD detection result to the DPU.
And 103, determining whether the screen state is abnormal according to the ESD detection result. If yes, go to step 104; otherwise, step 105 is performed.
In step 104, the DPU triggers an interrupt and performs ESD recovery.
And step 105, ending the ESD detection.
In specific implementation, the DPU triggering the DSI to perform the ESD detection may be implemented by software or hardware, and the embodiment of the present application is not limited thereto.
For example, in one non-limiting embodiment shown in fig. 2, the DPU causes the DSI to perform ESD detection in a hardware triggered manner. In this embodiment, the DPU synchronously transmits the ESD enable signal to the DSI when transmitting the vertical synchronization signal to the DSI. Accordingly, the DSI performs ESD detection according to the ESD enable signal. Further, in order to facilitate adaptability of the scheme under different environments, an ESD enable register may be further disposed in the DPU, and the DPU enables the ESD enable register when ESD detection is required. The specific process is as follows:
as shown in fig. 2, first, in step 201, in the case where ESD detection is required, the DPU enables the ESD enable register.
In step 202, the DPU sends a VSYNC (vertical synchronization) signal to the DSI and synchronously sends an ESD enable signal to the DSI according to the state of the ESD enable register. For example, if the value of the ESD enable register is 1, an ESD enable signal is synchronously sent to the DSI; if the value of the ESD enable register is 0, no ESD enable signal is sent.
Accordingly, in step 203, DSI performs ESD detection according to the ESD enable signal, for example, DSI checks whether the ESD enable signal is valid at the rising edge of VSYNC signal.
If the ESD enable signal is valid, step 204 is executed to read the screen status register after the current data frame processing is completed.
The screen state register is a register used for storing a screen state in the prior art, and the ESD detection standard value is a state value when the screen is in a normal display state. The ESD detection criteria values may be preconfigured.
In step 205, the read result is compared to an ESD detection standard value. Then, in step 206, the DSI returns the ESD detection result to the DPU according to the comparison result.
If the read value in the screen state register is different from the ESD detection standard value, the screen state is abnormal, otherwise, the screen state is the same. Accordingly, the ESD detection result is used to indicate whether the screen state is abnormal.
It should be noted that, in a specific application, the DSI returns the ESD detection result to the DPU, which may be implemented in a hardware manner or a software manner, and the embodiment of the present application is not limited thereto. For example, when the signal line is implemented by hardware, the corresponding signal line level may be triggered to be high or low.
Of course, if the ESD enable signal is not active, the DSI continues normal data frame processing.
Accordingly, in step 207, after receiving the ESD detection result returned by the DSI, the DPU determines whether the screen status is abnormal according to the ESD detection result.
If so, step 208 is performed, and the DPU triggers an interrupt to perform ESD recovery.
Otherwise, the DPU performs normal data processing.
And synchronously sending the ESD enabling signal to the DSI when the DPU sends the VSYNC signal to the DSI next time, namely synchronously sending the ESD enabling signal to the DSI each time the DPU sends the VSYNC signal to the DSI.
By using the ESD enabling register, the scheme of the invention can be conveniently applied in different environments, for example, under the application environment without ESD detection or the environment with software ESD detection, the DPU does not enable the ESD enabling register, so that the DPU can carry out normal data processing.
According to the electrostatic discharge detection processing method provided by the embodiment of the application, the DPU triggers the DSI to perform ESD detection, and when the abnormal state of the screen is detected, the DPU triggers to interrupt and performs ESD recovery, so that the problem of abnormal display such as screen offset and the like caused by the fact that the screen cannot return to a register value within one line of time can be solved; moreover, because the DSI is triggered to carry out ESD detection in the interaction process of the DPU and the DSI, compared with the prior art, the power consumption of the system can be greatly reduced.
Correspondingly, an embodiment of the present application further provides an electrostatic discharge detection processing apparatus, as shown in fig. 3, which is a schematic structural diagram of the apparatus.
The electrostatic discharge detection processing apparatus of this embodiment includes: and the DPU is used for triggering the DSI to carry out ESD detection, receiving an ESD detection result returned by the DSI, triggering interruption and carrying out ESD recovery when the ESD detection result indicates that the screen state is abnormal.
In a specific application, the DPU may trigger the DSI to perform ESD detection at a set time interval, for example, when a vertical synchronization signal is sent to the DSI, an ESD enable signal is synchronously sent to the DSI; or the DPU triggers the DSI to perform the ESD detection in other manners, which is not limited in this embodiment of the present application.
As shown in FIG. 3, in one non-limiting embodiment, DPU300 includes ESD enable register 301.
In this embodiment, the DPU300 enables the ESD enable register 301 in case ESD detection is required; and, when the VSYNC signal is transmitted to the DSI, the ESD enable signal is synchronously transmitted to the DSI according to the state of the ESD enable register 301.
In a specific application, the DSI may be a part of the electrostatic discharge detection processing apparatus or may be independent of the apparatus, and the embodiment of the present application is not limited thereto.
The DSI is used for ESD detection according to the ESD enable signal and returning the ESD detection result to the DPU 300. The DSI may return the ESD detection result in a software or hardware manner, which is not limited in this embodiment of the present application.
In addition, the embodiment of the present application does not limit the specific manner of ESD detection for DSI. For example, in one non-limiting embodiment, the DSI may include: a screen status register. Accordingly, DSI checks whether the ESD enable signal is active on the rising edge of the VSYNC signal; and under the condition that the ESD enabling signal is effective, after the current data frame is processed, reading the screen state register, comparing the reading result with the ESD detection standard value, and returning the ESD detection result to the DPU according to the comparison result.
For more details of the working principle and working mode of each device, reference may be made to the related description in the foregoing corresponding method embodiment, and details are not repeated here.
Correspondingly, the embodiment of the application also provides terminal equipment which comprises the electrostatic discharge detection processing device.
According to the electrostatic discharge detection processing device and the terminal equipment provided by the embodiment of the application, the DPU triggers the DSI to perform ESD detection, and the DPU triggers the interruption and performs ESD recovery when the abnormal state of the screen is detected, so that the problem of abnormal display such as screen deviation caused by the fact that the screen cannot return to a register value within one line of time can be solved; moreover, because the DSI is triggered to carry out ESD detection in the interaction process of the DPU and the DSI, compared with the prior art, the power consumption of the system can be greatly reduced.
In a specific implementation, the electrostatic discharge detection processing apparatus may correspond to a Chip with a corresponding function in a network device and/or a terminal device, such as a System-On-a-Chip (SOC), a baseband Chip, a Chip module, and the like.
In a specific implementation, each module/unit included in each apparatus and product described in the foregoing embodiments may be a software module/unit, may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit.
For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
The present application further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and has a computer program stored thereon, where the computer program is executed by a processor to perform the steps in the above-mentioned method embodiments.
The embodiment of the present application further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps in the above method embodiments when executing the computer program.
Fig. 4 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure. The electronic device includes a processor 801, a memory 802, and a transceiver 803.
The processor 801 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure. The processor 801 may also include multiple CPUs, and the processor 801 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores that process data (e.g., computer program instructions).
The memory 802 may be a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, an EEPROM (electrically erasable programmable read-only memory), a CD-ROM (compact disk read-only memory) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, and is not limited in this respect. The memory 802 may be separate (in which case the memory 802 may be external to the device or internal to the device) or may be integrated with the processor 801. The memory 802 may have computer program code embodied therein. The processor 801 is configured to execute the computer program code stored in the memory 802, thereby implementing the methods provided by the embodiments of the present application.
The processor 801, the memory 802, and the transceiver 803 are connected by a bus. The transceiver 803 is used to communicate with other devices or communication networks. Optionally, the transceiver 803 may include a transmitter and a receiver. The means in the transceiver 803 for performing the receiving function may be regarded as a receiver, and the receiver is configured to perform the receiving step in the embodiments of the present application. The means for implementing the transmitting function in the transceiver 803 may be regarded as a transmitter for performing the steps of transmitting in the embodiments of the present application.
When the schematic structure shown in fig. 4 is used to illustrate the structure of the terminal device in the foregoing embodiment, the processor 801 is configured to control and manage the actions of the terminal device, for example, the processor 801 is configured to support the terminal device to perform some or all of the steps in fig. 1 or fig. 2, and/or actions performed by the terminal device in other processes described in this embodiment. The processor 801 may communicate with other network entities, e.g., with the network devices described above, via the transceiver 803. The memory 802 is used for storing program codes and data of the terminal device. The processor, when running the computer program, may control the transceiver 803 to receive downlink signaling or downlink data.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.
The "plurality" appearing in the embodiments of the present application means two or more.
The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.
Embodiments provided herein may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be physically arranged separately, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present disclosure, and it is intended that the scope of the present disclosure be defined by the appended claims.
Claims (13)
1. An electrostatic discharge detection processing method, characterized in that the method comprises:
triggering a display serial interface DSI by a display processor to carry out ESD detection;
receiving an ESD detection result returned by the DSI;
and if the ESD detection result indicates that the screen state is abnormal, triggering interruption by the display processor and recovering the ESD.
2. The method of claim 1, wherein triggering DSI for ESD detection by the display processor comprises:
and the display processor triggers the DSI to carry out ESD detection according to a set time interval.
3. The method of claim 2, wherein triggering DSI for ESD detection by the display processor comprises:
and when the display processor sends the vertical synchronous signal to the DSI, the display processor synchronously sends an ESD enabling signal to the DSI.
4. The method of claim 3, wherein triggering DSI for ESD detection by the display processor further comprises:
enabling an ESD enabling register arranged in the display processor by the display processor under the condition that ESD detection is needed;
the display processor synchronously sending the ESD enabling signal to the DSI comprises: and the display processor synchronously sends an ESD enabling signal to the DSI according to the state of the ESD enabling register.
5. The method of claim 4, further comprising:
and the DSI carries out ESD detection according to the ESD enabling signal.
6. The method of claim 5, wherein the DSI performing ESD detection according to the ESD enable signal comprises:
the DSI checks whether the ESD enable signal is valid at a rising edge of the vertical synchronization signal;
if the data frame is valid, reading the screen state register after the current data frame is processed, and comparing the reading result with an ESD detection standard value;
and returning an ESD detection result to the display processor according to the comparison result.
7. An electrostatic discharge detection processing apparatus, characterized in that the apparatus comprises: a display processor;
and the display processor is used for triggering the display serial interface DSI to carry out ESD detection, receiving an ESD detection result returned by the DSI, triggering interruption when the ESD detection result indicates that the screen state is abnormal, and carrying out ESD recovery.
8. The apparatus of claim 7,
and the display processor triggers the DSI to carry out ESD detection according to a set time interval.
9. The apparatus of claim 8,
the display processor is specifically configured to synchronously send an ESD enable signal to the DSI when sending a vertical synchronization signal to the DSI;
and the display processor triggers the DSI to carry out ESD detection through the ESD enabling register.
10. The apparatus of claim 9, wherein the display processor comprises: an ESD enable register;
the display processor is specifically used for enabling the ESD enabling register under the condition that ESD detection is required; and synchronously sending an ESD enabling signal to the DSI according to the state of the ESD enabling register.
11. The apparatus of claim 10, further comprising: DSI;
and the DSI is used for carrying out ESD detection according to the ESD enabling signal.
12. The apparatus of claim 11,
the DSI is specifically configured to check whether the ESD enable signal is valid on a rising edge of the vertical synchronization signal; and under the condition that the ESD enabling signal is effective, after the current data frame is processed, reading the screen state register, comparing the reading result with an ESD detection standard value, and returning an ESD detection result to the display processor according to the comparison result.
13. A terminal device characterized by comprising the electrostatic discharge detection processing apparatus according to any one of claims 7 to 12.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116431418A (en) * | 2023-06-13 | 2023-07-14 | 荣耀终端有限公司 | Screen electrostatic detection method, readable storage medium and electronic device |
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