CN117631793B

CN117631793B - Reset method, reset device, computer equipment and storage medium

Info

Publication number: CN117631793B
Application number: CN202410103705.XA
Authority: CN
Inventors: 林建军; 吴登峰; 周红星; 汪正锋
Original assignee: Anhui Xihe Microelectronics Co ltd; Shanghai Shuimu Blue Whale Semiconductor Technology Co ltd; Shenzhen Xihua Technology Co Ltd
Current assignee: Anhui Xihe Microelectronics Co ltd; Shanghai Shuimu Blue Whale Semiconductor Technology Co ltd; Shenzhen Xihua Technology Co Ltd
Priority date: 2024-01-25
Filing date: 2024-01-25
Publication date: 2024-05-10
Anticipated expiration: 2044-01-25
Also published as: CN117631793A

Abstract

The application relates to a reset method, a reset device, computer equipment and a storage medium. The method is applied to a screen driving chip, and comprises the following steps: under the condition of running based on the current application program, if a reset instruction is detected, determining reset configuration data corresponding to the current application program; determining a target application program indicated by the reset configuration data according to an application program of a nonvolatile memory or an application program of the screen driving chip; and running based on the target application program. By the method, the speed of screen resetting can be improved.

Description

Reset method, reset device, computer equipment and storage medium

Technical Field

The present application relates to the field of chip control, and in particular, to a reset method, apparatus, computer device, storage medium, and computer program product.

Background

A conventional screen driver chip (Touch AND DISPLAY DRIVER Integration, TDDI) may control the screen to perform global reset or Touch domain reset.

The screen driving chip not only has the application program of touch control and display, but also can integrate the application program with functions of resolution processing (scaler) and the like, so that the reset time is prolonged. Moreover, time-sensitive host handshake instructions are also difficult to respond in time after reset, which may lead to an increase in host reset time.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a reset method, apparatus, computer device, computer readable storage medium, and computer program product that can increase the speed of screen reset.

In a first aspect, the present application provides a reset method applied to a screen driving chip, the method comprising:

Under the condition of running based on the current application program, if a reset instruction is detected, determining reset configuration data corresponding to the current application program;

Determining a target application program indicated by the reset configuration data according to an application program of a nonvolatile memory or an application program of the screen driving chip;

and running based on the target application program.

In one embodiment, the determining the reset configuration data corresponding to the current application program includes:

reading reset configuration data corresponding to the current application program from a target storage circuit of the screen driving chip;

the data in the target storage circuit is reset based on the current application program.

In one embodiment, the reading the reset configuration data corresponding to the current application program from the target storage circuit of the screen driving chip includes:

Reading reset configuration data corresponding to the current application program from a target register of the screen driving chip;

The target register is arranged in the processor of the screen driving chip, and data in the target register is not reset based on the reset instruction.

In one embodiment, the reset configuration data comprises load configuration data;

The determining, according to the application program of the nonvolatile memory or the application program of the screen driving chip, the target application program indicated by the reset configuration data includes:

judging whether the current application program is reset or not according to the loading configuration data;

If yes, re-acquiring the application program stored in the nonvolatile memory, and determining a target application program according to the re-acquired application program;

if not, determining a target application program according to the application program of the screen driving chip in the memory.

Determining simulation configuration data corresponding to the current application program, and judging whether to perform simulation reset according to the simulation configuration data;

If yes, under the condition that a control signal for indicating abnormal power-down acts on a screen, loading configuration data corresponding to the application program is determined;

if not, determining loading configuration data corresponding to the application program.

In one embodiment, the detecting a reset instruction includes:

in a data channel for detecting a reset instruction, judging whether the voltage value is changed or not;

If yes, a reset instruction for indicating software reset is detected.

In one embodiment, before the running of the current application program, the method further includes:

under the condition that the first power-on reset signal controls the screen to be in a power-off state, if the second power-on reset signal is detected, controlling the screen to be in a display state, and acquiring a current application program;

The current application program is moved from the nonvolatile memory to the screen driving chip by a guide circuit.

In a second aspect, the present application also provides a reset device, including:

The reset configuration module is used for determining reset configuration data corresponding to the current application program if a reset instruction is detected under the condition that the screen driving chip operates based on the current application program;

a program determining module, configured to determine a target application program indicated by the reset configuration data according to an application program of a nonvolatile memory or an application program of the screen driver chip;

and the reset operation module is used for operating based on the target application program.

In a third aspect, the present application also provides a computer device, including a device memory and a screen driver chip, where the device memory stores a computer program, and where a processor of the screen driver chip executes the computer program to implement the resetting step in any of the above embodiments.

In a fourth aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of resetting in any of the embodiments described above.

In a fifth aspect, the application also provides a computer program product comprising a computer program which when executed by a processor performs the steps of resetting in any of the embodiments described above.

The resetting method, the resetting device, the computer equipment and the storage medium are used for determining resetting configuration data corresponding to the current application program if the resetting instruction is detected under the condition of running based on the current application program; because the reset configuration data corresponds to the current application program, the reset process of the current application program is configurable, and the reset process of the current application program and the application data is separated into two processes, so that the screen driving chip can reset the application data and the current application program at the same time, and can reset the application data independently. In this case, the target application program is determined according to the application program of the nonvolatile memory so as to simultaneously reset the application data and the application program, and the target application program in this way has strong stability and is not easy to be abnormal; the method has the advantages that the application program is determined according to the screen driving chip, the data interaction between the screen driving chip and the nonvolatile memory is not involved, the reset of the application data is independently carried out, the time consumption is short, and the target application program can be operated efficiently.

Drawings

FIG. 1 is an application environment diagram of a reset method in one embodiment;

FIG. 2 is a flow chart of a reset method in one embodiment;

FIG. 3 is a flow diagram of global reset in one embodiment;

FIG. 4 is a flow chart of a software reset in another embodiment;

FIG. 5 is a flow chart of a hardware reset in another embodiment;

FIG. 6 is a block diagram of a reset device in one embodiment;

fig. 7 is an internal structural diagram of a computer device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

The screen driver chip (Touch AND DISPLAY DRIVER Integration, TDDI) can control the screen to perform global reset and also can control the Touch domain reset. The global reset is a reset of the global circuit including a display domain and a touch domain, and the touch domain is mainly a reset of the touch circuit. The display domain does not need to depend on a touch domain module, and the display domain can work independently, so that after the global circuit is reset, the screen can be displayed quickly and can respond to instructions sent by a host in time. In terms of touch area, the conventional screen driving chip includes a read-only memory boot (ROM boot) for preferentially processing time-sensitive host handshake instructions after reset, and moving an application program into a memory of a corresponding touch processor (e.g., MCU), and executing touch related tasks through the moved application program in the touch processor.

For example, the application scenario may mean that 1-2 lcd_rst pulses are typically sent after the screen is turned off and wakes up; at the moment, after global reset, the display module can work normally; after the touch domain is reset, after mcu needs to be initialized, the touch domain can normally receive the instruction of the host side. The last signal in the global reset rises to about 10ms when the MIPI interface has a MIPI command, and at this time, the data channel for detecting the reset command has not yet responded to the MIPI command. Thus, acceleration is required.

When the screen driver chip is integrated with scaler functions, sTDDI is formed, relevant tasks are displayed in a processing mode depending on the mcu. Many processes do not contain read-only memory, but rather a boot circuit (hardware boot) replaces read-only memory. If the time-sensitive host handshake instruction processing needs to be realized after the reset, the time is not up; if the definition of the function pin of the global reset (LCD_RST) or the touch domain reset (TP_RST) is inherited, the requirement of the system application cannot be met; the reset function needs to be modified in combination with practical application.

The resetting method provided by the embodiment of the application can be applied to an application environment shown in figure 1. The terminal can be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, internet of things equipment and portable wearable equipment, and the internet of things equipment can be smart speakers, smart televisions, smart air conditioners, smart vehicle-mounted equipment and the like. The portable wearable device may be a smart watch, smart bracelet, headset, or the like.

In one embodiment, as shown in fig. 2, there is provided a reset method applied to a screen driving chip, comprising the steps of:

Step 202, if a reset instruction is detected under the condition of running based on the current application program, determining reset configuration data corresponding to the current application program.

The reset instruction is an instruction for instructing the screen driving chip to perform reset processing. Optionally, the reset instruction is generated based on a detection result of the voltage value change by the screen driving chip, and the detection result is used for instructing the screen driving chip to execute the reset method. Optionally, the reset instruction is an instruction obtained by identifying a signal sent to the screen driving chip by the host computer.

The current application program is an application program running on a screen driving chip and is used for realizing a screen function; screen functions include, but are not limited to, display functions and touch functions. Alternatively, the current application is moved from the non-volatile memory into the screen driver chip. The application program is a part of codes stored in the nonvolatile memory, and after the screen driving chip is powered on, the application program is moved from the nonvolatile memory to the screen driving chip, so that the initial current application program is obtained. Each time the target application program obtained in step 202 and step 204 is executed, the result of the action of the current application program under the reset instruction is the result, and the target application program also belongs to the current application program of the next round under the condition that the screen driving chip operates based on the target application program.

The application is a code (code) and application Data (Data) may be generated based on the application run. Optionally, the application program includes, but is not limited to, an application program for controlling screen display, an application program for controlling screen touch, and a sclaer application program for image processing of an image displayed on a screen. The applications may be different applications executed separately or may be different code segments of the same application.

Nonvolatile memory is memory that does not remove data from a device due to power down. The non-volatile memory will not clear the application program due to the reset instruction. Alternatively, the nonvolatile memory may be a device memory of a computer device layer, or may be a nonvolatile memory in the screen driving chip. The nonvolatile Memory includes, but is not limited to, read-Only Memory (ROM), one-time programmable Memory (One Time Programmable, OTP), flash Memory (Flash). Alternatively, since some chips do not have read-only memory, the application program may be stored in one-time programmable memory or flash memory for a long period of time. Alternatively, since the application program in the rom has a longer reading time, the application program can be stored in the otp or flash, so that the processing efficiency of the reset process is improved.

The reset configuration data is data for configuring the current application reset process. Resetting the configuration data to enable the resetting process of the current application program and the current application data in the screen driving chip to be respectively carried out; the current application data is data generated by the current application program in the running process. Therefore, the application data generated in the running process of the current application program can be independently reset, and the requirement of efficient resetting is met.

Since the reset configuration data corresponds to the current application program, the reset configuration data can be adjusted by the current application program, so that the reset process of the current application program is configurable. Therefore, whether the current application program needs to be reset or not is judged by adjusting the reset configuration data; the reset process of the current application program can be dynamically configured, and the screen driving chip keeps the reset function of the current application program, so that the current application program in the screen driving chip can be reset, and the reset can be performed under the condition that the current application program itself has code abnormality.

Alternatively, in the case of running based on the current application, the reset configuration data is not reconfigured based on the reset instruction. The reset configuration data may be stored in a non-volatile memory or in a circuit that is not reconfigured based on the reset instruction such that the reset configuration data is not reconfigured based on the reset instruction. Specifically, in the process that the screen driving chip operates based on the current application program, current application data can be generated, and most of the current application data is deleted based on a reset instruction; and the reset configuration data in the current application data is not deleted based on the reset instruction.

In one embodiment, if a reset instruction is detected, determining reset configuration data corresponding to the current application program includes: and if the reset instruction sent by the host is detected, reading the reset configuration data stored by the screen driving chip.

In another embodiment, if a reset instruction is detected, determining reset configuration data corresponding to the current application program includes: if the reset instruction sent by the host is detected, the reset configuration data is read from the nonvolatile memory of the computer device through the processor of the screen driving chip.

Step 204, determining the target application program indicated by the reset configuration data according to the application program of the nonvolatile memory or the application program of the screen driving chip.

The application program of the nonvolatile memory is an application program stored in the nonvolatile memory. It is necessary to acquire an application program of the nonvolatile memory through an interactive process between the screen driving chip and the nonvolatile memory, which takes a long time, but since data stored in the nonvolatile memory itself has a nonvolatile characteristic, the possibility of occurrence of an abnormality is extremely low.

The application of the screen driving chip is an application stored in the screen driving chip. The application program of the screen driving chip can be transmitted to the processor of the screen driving chip through the internal bus of the screen driving chip, the time consumption of the process is short, and the possibility of abnormality is low because the application program of the screen driving chip is less influenced by application data.

The target application is the result indicated by the reset configuration data. The target applications indicated by the different reset configuration data are different. The target application is the redefined data handling.

The determination of the target application based on the application in the non-volatile memory or screen driver chip may enable the source of the target application to be configurable, which may have the advantage of low likelihood of anomalies occurring, as well as the advantage of less time consuming processing.

The screen driving chip is based on the running condition of any application program and does not belong to the non-power-on reset condition. At this time, the screen driving chip generates corresponding application data by running the current application program, and the application data can be removed along with a reset instruction so as to realize reset; and by resetting the configuration data, whether the current application program is reset or not can be judged. Specifically, if a reset is made, the target application is an application in the nonvolatile memory; and if not resetting, determining a target application program according to the application program of the screen driving chip. Therefore, the reset process of the application program and the application data is separated into two processes through the reset configuration data, so that the screen driving chip can reset the application data and the application program at the same time, and can reset the application data independently, and the reset efficiency in most cases is higher because the possibility of abnormality of the application program is lower.

In one embodiment, determining the target application indicated by the reset configuration data according to the application of the nonvolatile memory or the application of the screen driver chip includes: determining a current value of the reset configuration data; determining a target application program indicated by the reset configuration data in the current value according to the application program of the nonvolatile memory or the application program of the screen driving chip; wherein the reset configuration data may occupy at least one bit. For example: when the current value of the reset configuration data is 1, determining a target application program according to the application program of the nonvolatile memory; when the current value of the reset configuration data is 0, determining a target application program according to the application program of the screen driving chip.

Step 206, running based on the target application.

In the process that the screen driving chip operates based on the target application program, reset application data can be generated, and the reset application data can be deleted based on a re-received reset instruction; and the reset application data comprises target reset configuration data corresponding to the target application program, and the target reset configuration data cannot be deleted based on the reset instruction.

The screen driving chip is different based on the case where the application program is run and the case where the screen driving chip is run based on the target application program, the difference is that: the case of running the target application is a case of executing the reset method process based on the reset instruction in step 202, based on the case of running the application being a case before reset.

Optionally, after the data processing of the current round is performed in step 202, step 204 and step 206, if the reset command is detected again, step 202, step 204 and step 206 in the next round are sequentially performed. In this case, the target application of the current round acts as the application in step 202 of the next round.

The processing flows in steps 202, 204 and 206 are non-power-on reset, and may cover at least some steps in global reset, or may be non-power-on reset in touch domain reset. The non-power-on reset in the touch domain reset can be a software reset or a hardware reset.

In the resetting method, under the condition of running based on the current application program, if a resetting instruction is detected, resetting configuration data corresponding to the current application program is determined; because the reset configuration data corresponds to the current application program, the reset process of the current application program is configurable, and the reset process of the current application program and the application data is separated into two processes, so that the screen driving chip can reset the application data and the current application program at the same time, and can reset the application data independently. In this case, the target application program is determined according to the application program of the nonvolatile memory so as to simultaneously reset the application data and the application program, and the target application program in this way has strong stability and is not easy to be abnormal; the method has the advantages that the application program is determined according to the screen driving chip, the data interaction between the screen driving chip and the nonvolatile memory is not involved, the reset of the application data is independently carried out, the time consumption is short, and the target application program can be operated efficiently.

In one embodiment, a power-on reset of a global reset process is set forth. The method further comprises, prior to running based on the current application: under the condition that the first power-on reset signal controls the screen to be in a power-off state, if the second power-on reset signal is detected, controlling the screen to be in a display state, and acquiring a current application program; the current application program is moved from the nonvolatile memory to the screen driving chip by a guide circuit.

The first power-on reset signal is a power-on reset signal generated prior to the second power-on reset signal. The first power-on reset signal and the second power-on reset signal are instructions detected through a data channel for global reset. The first power-on reset signal can directly act on a pin of a screen or act on a pin of a screen driving chip; the second power-on reset signal acts on the pin of the screen driving chip.

Alternatively, the data channel for global reset may be a data channel transmitting data through an lcd_rst pulse signal. Optionally, the first power-on reset signal means that a data channel of global reset is changed from a high level to a low level, and at this time, the screen is closed by simulating high voltage, and power-down is performed on the screen, so that the control screen is in a power-down state. The detection of the second power-on reset signal means that the data channel of the global reset is changed from a low level to a high level, the screen is opened by simulating high voltage, and the screen is prepared for display so as to control the screen to be in a display state.

Optionally, the screen is in a power-down state, that is, the host closes the screen and corresponding components by simulating a high-voltage signal, so that the control screen is powered down efficiently. Therefore, different from the processing mode of abnormal power-down, the abnormal power-down also controls most of the modules to enter any power consumption state, and after the screen power-down state is controlled, most of the modules are not controlled to enter any power consumption state, and the second power-on reset signal is waited. Optionally, the control screen being in a display state means: the RST reset releases the digital takeover high voltage related module control authority and can begin to be ready for display.

Optionally, the corresponding components turned off by the power-down state include, but are not limited to, an analog system, a touch domain system, and a display domain IP; and these components will reset during the process of entering the display state. Wherein, the Analog System (Analog System) comprises a driving circuit of the liquid crystal display, a signal amplifier, a digital-to-Analog converter and other components; the Touch domain System (Touch System) is used for detecting Touch control instructions, and comprises a Touch sensor and a related controller; the display field IP (Display Domain IP) refers to a portion that controls display of an image, and includes a pixel driving circuit, a display controller, and the like.

Optionally, the control screen is in a power-down state, and can be used for indicating the screen to return to a power-on initial state, at this time, each circuit and module of the screen need to be initialized according to design requirements to ensure normal operation. Optionally, the corresponding components that are turned off in the power-down state include, but are not limited to, a VGH module, a GIP module, and other hardware-level modules to control the screen to be in the power-down state.

Specifically, the control screen is in a power-down state and can be used for indicating modules such as VGH (voltage generation circuit) to be closed, wherein VGH is a high-voltage generation circuit in a liquid crystal display to ensure the stability of a power-up process; the control screen is In a power-down state and can also be used for indicating that GIP (Gate In-Plane) is adjusted to VGHO, i.e., gip=vgho; GIP is typically associated with gate control in liquid crystal displays; VGHO is an initial voltage of Gate In-Plane for making the Gate voltage of the screen In an appropriate state. The control screen is in a power-down state and can be used for indicating complete cut-off of the power supply so as to avoid problems possibly caused when the liquid crystal display is on for a long time, such as screen burning.

The boot circuit is a hardware boot circuit, which may also be referred to as a hardware boot; the area of the boot circuit is smaller than the area of the read only memory. Some chips do not contain read-only memory, but instead use a boot circuit to move the application. The boot circuit is used to move the application program from the nonvolatile memory to the screen driving chip to obtain the current application program.

Alternatively, the current application program is acquired, and under the condition that the guide circuit operates normally, the guide circuit moves the application program to the processor of the screen driving chip, so that the processor of the screen driving chip acquires the initial current application program operation. And under the condition that the processor of the screen driving chip runs based on the current application program, the processor of the screen driving chip completes power-on reset.

In this embodiment, when the first power-on reset signal controls the screen to be in the power-off state, the current on the power line can not be transmitted to the screen, so that the state of the screen is cleared, and abnormal heating or other problems caused by the current passing through the liquid crystal are avoided, so that the power-on reset process can be performed normally. Then, when the second power-on reset signal is detected, the screen driving chip obtains the application program in the nonvolatile memory through the guide circuit of the computer equipment, and the moving process is executed by the guide circuit, so that the current application program can be obtained from the one-time programmable memory or the flash memory without depending on the read-only memory, the current application program can be obtained more efficiently, and the power-on reset is realized.

In one embodiment, detecting a reset instruction includes: in a data channel for detecting a reset instruction, judging whether the voltage value is changed or not; if yes, a reset instruction for indicating software reset is detected.

In one embodiment, in a data channel for detecting a reset instruction, determining whether a voltage value is changed includes: detecting whether the first voltage value is changed to the second voltage value in a data channel for detecting a reset instruction; the first voltage value and the second voltage value are different voltage values transmitted by the circuit. When the first voltage value is at a low level, the second voltage value is at a high level; when the first voltage value is at a high level, the second voltage value is at a low level.

Specifically, a Low Level (Low Level) and a high Level (HIGH LEVEL) are two states used to represent binary data. They represent two different voltage levels of an electrical signal, generally corresponding to a logic "0" and a logic "1", respectively; a low level typically represents a logical "0".

Alternatively, the low level voltage level is a voltage range within a certain voltage difference from zero volts, and the high level voltage level is a voltage within a certain range from the voltage difference of the power supply voltage. The voltage threshold depends on the specific level criteria. For example: in a two Transistor Logic circuit (Transistor-Transistor Logic, TTL), the low level may be between 0 volts and 0.8 volts. The high level typically represents a logic "1" and is typically between 2.0 volts and 5.0 volts.

In another embodiment, in a data channel for detecting a reset instruction, determining whether a voltage value is changed includes: when the voltage value in the data channel for detecting the reset instruction is kept unchanged in a preset time period, judging whether the voltage value of the data channel is changed or not. Therefore, the time factor is included in the detection process of the reset instruction, so that the reset instruction is detected more accurately, and the occurrence possibility of identification is reduced.

In some cases, after the host chip wakes up when the screen is turned off, the voltage of a data channel for detecting a RESET instruction (such as a data channel for transmitting data through a touch domain RESET signal, such as a tp_reset signal) is pulled up, and then data transmission between the host chip and the screen driving chip is performed, so that communication is realized; in other cases, after the host chip wakes up when the screen is turned off, the voltage of the data channel is pulled down, so that data transmission between the host chip and the screen driving chip is realized.

Wherein the host chip is a main processor of the terminal, which may be a Central Processing Unit (CPU) or a System On Chip (SOC); the processor of the screen driving chip may be a Micro Control Unit (MCU) or an editable logic gate array (FPGA). The host chip and the screen driving chip can communicate through SPI, I2C and other data channels.

In the present embodiment, the voltage value is changed regardless of whether the host chip transmits the reset command by the low-level signal or the high-level signal. Therefore, based on the change condition of the voltage value, the reset instruction of the screen driving chip is detected, so that the instruction detection process does not need to depend on the design of the host chip, and the host chips with different designs can be identified. Thus, in this way, at least a software-level reset can be performed.

In one embodiment, determining reset configuration data corresponding to an application includes: determining simulation configuration data corresponding to a current application program; judging whether to perform analog reset according to the analog configuration data; if yes, under the condition that a control signal for indicating abnormal power-down acts on a screen, loading configuration data corresponding to the application program is determined; if not, determining loading configuration data corresponding to the application program.

The analog configuration data is reset configuration data, and the analog configuration data is used for judging whether to perform analog reset or not. The analog reset refers to a case where a control signal indicating abnormal power-down acts on the screen, in which case, not only the touch field of the screen needs to be reset, but also the control signal indicating abnormal power-down acts on the screen, so that the display field is changed to a power-down state of abnormal power-down. In the abnormal power-down state, most modules of the screen are controlled to enter any power consumption state. Regardless of whether a host control instruction exists or not, and regardless of whether the host performs abnormal power-down processing or not, the touch control driving chip can determine reset configuration data corresponding to the current application program so as to ensure reset efficiency. The corresponding embodiments of step 204 and the corresponding embodiments of step 206 are then performed sequentially.

The load configuration data is a type of reset configuration data and the analog configuration data is used to characterize whether the application is reloaded. Optionally, if reloading is required, reloading and reading the application program from the one-time programmable memory or the flash memory; if no reloading is required, the running based on the current application continues.

Since the display fields of the screen may be configured in different modes and may have different receiving and processing manners of signals, in the case where a control signal for indicating abnormal power down acts on the screen, the screen is not necessarily capable of recognizing or processing the control signal.

In an alternative embodiment, as shown in fig. 3, in a case that a control signal for indicating abnormal power-down acts on a screen, determining loading configuration data corresponding to an application includes: and determining loading configuration data corresponding to the application program under the condition that the processor of the screen driving chip generates a reset event based on a control signal for indicating abnormal power-down and sends the control signal for indicating abnormal power-down to the screen based on the reset event. Under the condition that the generation of the reset event is executed, the data transmission process between the host and the screen driving chip is relatively less, and the control signal for indicating abnormal power-down only needs one voltage change, so that the processor of the host control screen driving chip can execute the steps 202 and the subsequent steps of the step 202, thereby improving the reset efficiency.

In one possible embodiment, the processor of the screen driver chip generates a reset event based on a control signal for indicating an abnormal power down, comprising: in the case that the processor of the screen driving chip is a Micro Control Unit (MCU), when the pin for touch domain reset is changed from a high voltage to a low voltage, the processor of the screen driving chip detects a reset event (MCU rst) of the touch domain. Wherein the pin for touch domain reset is the tp_rst pin.

In one possible embodiment, sending a control signal to the screen indicating an abnormal power down based on a reset event includes: after a processor of the screen driving chip recognizes a Reset event as a touch Reset interrupt (Reset interrupt), the processor of the screen driving chip firstly controls the running interrupt of the current application program, and then sends a control signal for indicating abnormal power-down to the screen through a control signal in a soft Reset mode; the soft reset mode is a reset mode for controlling the reset process through software. Thus, when a reset event for representing the running interruption is identified, the running of the current application program is stopped, abnormal power-down of the screen is controlled in a soft reset manner so as to determine reset configuration data corresponding to the current application program, and then step 204 and step 206 are sequentially executed.

In another alternative embodiment, in a case that a control signal for indicating abnormal power-down acts on a screen, determining loading configuration data corresponding to an application program includes: when the pin for touch domain reset is changed from high voltage to low voltage, abnormal power-down processing is executed until the pin for touch domain reset is changed from low voltage to high voltage; and under the condition that the pin for resetting the touch domain is changed from low voltage to high voltage, loading configuration data corresponding to the application program is determined. Therefore, the host machine performs two voltage changes through the pins for touch domain reset, and performs hardware reset through different kinds of voltage changes, and the hardware reset is performed according to fixed logic in a circuit, so that the hardware reset can be performed no matter whether the software code is abnormal or not. The case where the software code has an abnormality may be a case where the code is illegal.

Optionally, during the software reset, the configuration modes of the reset modes include, but are not limited to: configuration is performed by using analog configuration data in the power management domain registers. In this configuration mode, one type of reset configuration data is analog configuration data, and is used for judging whether the digital circuit notifies the analog circuit or not so as to perform abnormal power-down processing; another type of reset configuration data is load configuration data, which is a module for continuing to reset the touch domain, for determining whether an application needs to be relocated from one-time programmable memory and/or flash memory.

Illustratively, the reset further comprises a watchdog reset (wdt). Illustratively, the default setting for watchdog reset is that the application needs to be relocated from flash, while the MCU resets the relevant module registers.

In this embodiment, by simulating the variable of the configuration data, the control signal obtained by analog filtering and digital-to-analog conversion is obtained to act on the screen, so that the screen can be subjected to abnormal power-down processing under the execution display domain, so as to avoid the damage of the screen from the global reset angle, and the screen is controlled to be in a low-power consumption state, so that the power consumption is reduced; the control signal of the touch control domain can be enabled to act on the reset process of the display domain, and loading configuration data corresponding to the application program is determined no matter whether the display domain is reset or not by the screen, so that the reset process of the control domain and the reset process of the display domain are enabled to be improved, and the reset efficiency is improved.

In one embodiment, determining reset configuration data corresponding to a current application includes: reading reset configuration data corresponding to the current application program from a target storage circuit of the screen driving chip; wherein the data in the target storage circuit is reset configured based on the current application.

The target memory circuit is a circuit inside the screen driving chip. The target storage circuit is reset configured based on the current application. Alternatively, as a circuit for storing reset configuration data, the target storage circuit is designed not to be reset based on a reset instruction. For example, the target memory circuit may be a memory integrated with the screen driving chip, or may be a specific circuit of the screen driving chip.

It should be appreciated that the data processing in the reset process is in units of milliseconds (ms) or microseconds (μs), and the processor of the screen driving chip belongs to a microprocessor, and the data processing capability of the microprocessor is weaker than that of the main processor, so in the screen driving chip, the target storage circuit is set to store the reset configuration data, so that the time consumption of the data reading process is reduced. The microprocessor includes, but is not limited to, a single chip Microcomputer (MCU), a programmable logic gate array (FPGA).

In one embodiment, reading reset configuration data corresponding to a current application program from a target storage circuit of a screen driving chip includes: determining a reset configuration data bit in a target storage circuit of a screen driving chip; reading the value of the reset configuration data bit to obtain a value used for representing the reset configuration; the value used to characterize the reset configuration is the reset configuration data corresponding to the current application.

In a specific embodiment, reading reset configuration data corresponding to a current application program from a target storage circuit of a screen driving chip includes: determining the numerical value of the simulation configuration data bit corresponding to the current application program in the simulation configuration data bit of the screen driving chip; if the value of the simulation configuration data bit is the first value, determining the value of the loading configuration data bit corresponding to the application program in the loading configuration data bit of the screen driving chip under the condition that a control signal for indicating abnormal power-down acts on the screen; if the value of the simulation configuration data bit is the second value, determining the value of loading configuration data corresponding to the application program in the loading configuration data bit of the screen driving chip; the analog configuration data bit and the loading configuration data bit are different data bits of the target memory circuit, and the first value and the second value are different values set for the analog configuration data bit.

For example, the target memory circuit can store 8 bits of data, each data bit for storing one bit of data, where at least one data bit of the target memory circuit is an analog configuration data bit and at least one data bit of the target memory circuit is a load configuration data bit.

In this embodiment, the reset configuration data is stored in the target storage circuit of the screen driving chip, and the target storage circuit is reset configured based on the current application program, so that the screen driving chip does not need to separately acquire the reset configuration data from the nonvolatile memory of the computer device. In this case, the processor and the target storage circuit of the screen driving chip may perform data transmission using a high-speed bus inside the screen driving chip, so as to improve the reading efficiency of the reset configuration data, so that the reset efficiency is improved.

In one embodiment, reading reset configuration data corresponding to a current application program from a target storage circuit of a screen driving chip includes: reading reset configuration data corresponding to the current application program from a target register of the screen driving chip; the target register is arranged in the processor of the screen driving chip, and the data in the target register is not reset based on the reset instruction.

In one possible implementation, reading reset configuration data corresponding to a current application program from a target register of a screen driving chip includes: and reading reset configuration data obtained by configuring the current application program in the running process from a target register in the processor through a processor of the screen driving chip.

In one particular embodiment, the destination register is a power domain register (PWR register), the data in the power domain register is reset configured based on the current application, and the power domain register is part of the processor of the screen drive chip, and the data in the power domain register is not reset based on the reset instruction. Optionally, in addition to being used to store reset configuration data, the power domain register may also be used to switch the device between different power modes, such as between a normal operating mode, a low power mode, or a standby mode; the power domain registers may also be used for power management functions, possibly including configuration information to control functions such as power switches, power management timers, power state monitoring and management, etc.

Illustratively, the processor of the screen drive chip contains a destination register that is capable of storing data bits for storing reset configuration data, and the destination register is configured not to be reset based on a reset instruction.

In this embodiment, the target register is disposed in the processor of the screen driving chip, so that the processor of the screen driving chip can directly read the reset configuration data in the target register, and the processor of the screen driving chip does not need to interact with its own memory; the configuration process of the target register is based on the current application program to enable the target register and other registers not to be reset synchronously, so that the reset efficiency is guaranteed, and the data in the target register cannot be reset based on a reset instruction, so that the screen driving chip can be reset more stably, and the reset efficiency is guaranteed.

In one embodiment, resetting the configuration data includes loading the configuration data. Determining, according to an application of the nonvolatile memory or an application of the screen driver chip, a target application indicated by the reset configuration data, including: judging whether the current application program is reset or not according to the loading configuration data; if yes, re-acquiring the application program stored in the nonvolatile memory, and determining a target application program according to the re-acquired application program; if not, determining a target application program according to the application program of the screen driving chip in the memory.

In one embodiment, determining whether the current application is reset according to the reset configuration data includes: and judging whether to move or not according to the value of the reset configuration data bit. Specifically, if the value of the loading configuration data bit is configured as the third value, the application program stored in the nonvolatile memory is re-acquired, and the target application program is determined according to the re-acquired application program; if the value of the reset configuration data bit is configured to be the fourth value, determining a target application program according to the application program of the screen driving chip in the memory; wherein the third value and the fourth value are different values and are each a value set for loading configuration data bits.

In one embodiment, retrieving an application stored in a non-volatile memory includes: waiting for the reacquired application; the application program retrieved is moved from the memory to the screen driving chip by the hardware boot circuit.

In one embodiment, determining the target application from the retrieved application includes: and taking the newly acquired application program as a target application program.

In another embodiment, determining the target application from the retrieved application includes: storing the re-acquired application program in the memory of the screen driving chip so as to update the application program of the screen driving chip in the memory and obtain an updated application program; and taking the updated application program as a target application program.

In one embodiment, determining the target application program according to the application program of the screen driving chip in the memory includes: and taking the current application program running in the memory of the screen driving chip as a target application program.

In another embodiment, determining the target application program according to the application program of the screen driving chip in the memory includes: controlling the screen driving chip to rerun the application program in the memory; the rerun application is determined as the target application.

In this embodiment, whether the current application program is reset is determined according to the reset configuration data, so that the relationship between the reset process and the reset instruction of the current application program is configurable; if the configuration is that the reset is needed, re-acquiring the application program stored in the nonvolatile memory, and determining a target application program according to the re-acquired application program, so as to correct the problem of code abnormality under the condition that the code abnormality of the current application program possibly occurs, so that the reset method is stably operated; if the configuration is that the reset is not needed, the target application program is more efficiently determined according to the application program of the screen driving chip in the memory.

In one exemplary embodiment, the description is directed to a global reset, as shown in FIG. 3. The host controls the LCD_RST pin of the screen driving chip to change from high voltage to low voltage, and through the first power-on reset signal, the screen is instructed to simulate high voltage closing/screen power-down; then, the host controls the LCD_RST pin of the screen driving chip to be changed from low voltage to high voltage, and through the second power-on reset signal, the control guide circuit simulates high voltage to be opened/prepared for display, then executes the initialization process of the micro control unit and configures the subsequent touch domain reset strategy. Thus, the power-on reset process of the global reset is completed.

Next, the host controls the lcd_rst pin of the screen driving chip to change from high voltage to low voltage to instruct the screen to simulate high voltage off/screen power down; then, the host controls the LCD_RST pin of the screen driving chip to change from low voltage to high voltage, so as to judge whether to reload and load the application program from the flash memory; if the micro control unit is relocated and loaded, the guiding circuit is controlled by the guiding circuit to simulate high voltage opening/preparation display, and the guiding circuit executes the process to start the micro control unit; if the configuration is such that the application is not relocated, the application in memory is used. Thus, the non-power-on reset process of the global reset is completed.

In one exemplary embodiment, a software reset for a touch field is described, as shown in FIG. 4. The host changes the high voltage into low voltage through the LCD_RST pin of the screen driving chip, and the screen is instructed to simulate the abnormal power-down of the high voltage through the first power-on reset signal; then, the host changes from low voltage to high voltage through the LCD_RST pin of the screen driving chip, and controls the guiding circuit to start the micro control unit through the second power-on reset signal, then executes the initialization process of the micro control unit and configures the subsequent touch domain reset strategy. Thereby, the power-on reset process is completed.

Next, the micro-control unit detects a reset event of the micro-control unit, and the micro-control unit responds urst or other interrupt handling functions to execute a software reset at the last instruction of the interrupt handling function. If configured as an analog reset, the display area IP also needs to be reset, and thus the display area IP needs to be loaded from the one-time programmable memory to achieve the display area reset. If the program is not configured to be simulated reset, judging whether to re-move and load the application program from the flash memory, and if the program is re-moved and loaded, executing the process through a guide circuit to start the micro control unit; if the configuration is such that the application is not relocated, the application in memory is used. Therefore, a mode of one-time software reset is completed, and non-power-on reset is realized. In addition, the reset event is generated based on whether the voltage value is changed, and a corresponding reset instruction can exist.

In one exemplary embodiment, a hardware reset for a touch domain is described, as shown in FIG. 5. The host changes the high voltage into low voltage through the LCD_RST pin of the screen driving chip, and the screen is instructed to simulate the abnormal power-down of the high voltage through the first power-on reset signal; then, the host changes from low voltage to high voltage through the LCD_RST pin of the screen driving chip, and controls the guiding circuit to start the micro control unit through the second power-on reset signal, then executes the initialization process of the micro control unit and configures the subsequent touch domain reset strategy. Thereby, the power-on reset process is completed.

Next, the voltage of the tp_rst pin is changed from high voltage to low voltage so that the host informs the analog reset according to the configuration; if configured as an analog reset, the display area IP also needs to be reset, and thus the display area IP needs to be loaded from the one-time programmable memory to achieve the display area reset. Next, in the case that the voltage of the tp_rst pin is changed from a low voltage to a high voltage, if it is not configured as an analog reset, judging whether to reload and load the application program from the flash memory, and if it is, executing this process by the boot circuit to start the micro control unit; if the configuration is such that the application is not relocated, the application in memory is used. Therefore, a mode of hardware reset is completed once, and non-power-on reset is realized.

It should be understood that, although the steps in the flowcharts related to the above embodiments are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps may be performed in other sequences without strict order of execution unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a reset device for realizing the above-mentioned reset method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation of one or more embodiments of the resetting device provided below may be referred to above for limitation of the resetting method, and will not be repeated here.

In one embodiment, as shown in fig. 6, there is provided a reset device applied to a screen driving chip, the device including:

a reset configuration module 602, configured to determine reset configuration data corresponding to the current application program if a reset instruction is detected in a case where the screen driver chip operates based on the application program;

a program determining module 604, configured to determine, according to an application program of the nonvolatile memory or an application program of the screen driver chip, a target application program indicated by the reset configuration data;

a reset operation module 606 is configured to operate based on the target application program.

In one embodiment, the reset configuration module 602 is configured to:

In one embodiment, the reset configuration data comprises load configuration data. The program determining module 604 is configured to:

In one embodiment, the reset configuration module 602 is configured to:

If yes, a reset instruction for indicating software reset is detected.

In one embodiment, the apparatus further comprises a power-on reset module configured to:

Before the current application program runs, if the second power-on reset signal is detected under the condition that the first power-on reset signal controls the screen to be in a power-down state, the screen is controlled to be in a display state, and the current application program is acquired;

The above-described respective modules in the reset device may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a processor of the screen driving chip in a hardware form or can be stored in a memory of the screen driving chip in a software form, so that the processor can call and execute the operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 7. The computer device includes a screen driving chip, a device processor, a device memory, an input/output interface, a communication interface, a display unit, and an input means. Wherein the device processor, the device memory and the input/output interface are connected via a system bus, and the communication interface, the display unit and the input device are connected via the input/output interface to the system bus. Wherein the device processor of the computer device is configured to provide computing and control capabilities. The device memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the device processor and an external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program, when executed by a processor of the screen drive chip, implements a reset method. The display unit of the computer equipment is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device, wherein the display screen can be a liquid crystal display screen or an electronic ink display screen, the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on a shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.

It will be appreciated by those skilled in the art that the structure shown in FIG. 7 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

In one embodiment, there is also provided a computer device including a device memory storing a computer program and a screen driver chip, the processor of the screen driver chip executing the computer program to perform the steps of the method embodiments described above.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.

In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.

It should be noted that, the user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are both information and data authorized by the user or sufficiently authorized by each party, and the collection, use and processing of the related data are required to meet the related regulations.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory (flash), optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magneto-resistive random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (PHASE CHANGE Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration and not limitation, RAM may take many forms, such as static random access memory (Static Random Access Memory, SRAM), dynamic random access memory (Dynamic Random Access Memory, DRAM), or Parallel Random Access Memory (PRAM), among others. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. A reset method applied to a screen driving chip, the method comprising:

Under the condition of running based on the current application program, if a reset instruction is detected, determining reset configuration data corresponding to the current application program; the reset configuration data includes loading configuration data;

Judging whether the current application program is reset or not according to the loading configuration data; if yes, re-acquiring the application program stored in the nonvolatile memory, and determining a target application program according to the re-acquired application program; if not, determining a target application program according to the application program of the screen driving chip in the memory;

Running based on the target application;

Wherein the determining the reset configuration data corresponding to the current application program includes: reading reset configuration data corresponding to the current application program from a target storage circuit of the screen driving chip; the data in the target storage circuit is reset based on the current application program.

2. The method according to claim 1, wherein the reading the reset configuration data corresponding to the current application program from the target storage circuit of the screen driving chip includes:

3. The method of claim 1, wherein the determining the reset configuration data corresponding to the current application program comprises:

4. The method of claim 1, wherein detecting a reset instruction comprises:

If yes, a reset instruction for indicating software reset is detected.

5. The method of claim 1, wherein the method further comprises, prior to the running of the current application:

6. The method according to claim 1, wherein the reading the reset configuration data corresponding to the current application program from the target storage circuit of the screen driving chip includes:

Determining a reset configuration data bit in a target storage circuit of a screen driving chip;

reading the value of the reset configuration data bit to obtain a value used for representing reset configuration; the numerical value used for representing the reset configuration is reset configuration data corresponding to the current application program.

7. The method of claim 1, wherein after the target application program is executed, further comprising:

and if the reset instruction is detected again, taking the target application program of the current round as the current application program of the next round.

8. A reset device for use with a screen driver chip, the device comprising:

the reset configuration module is used for determining reset configuration data corresponding to the current application program if a reset instruction is detected under the condition that the screen driving chip operates based on the current application program; the reset configuration data includes loading configuration data;

The program determining module is used for judging whether the current application program is reset or not according to the loading configuration data; if yes, re-acquiring the application program stored in the nonvolatile memory, and determining a target application program according to the re-acquired application program; if not, determining a target application program according to the application program of the screen driving chip in the memory;

the reset operation module is used for operating based on the target application program;

9. A computer device comprising a device memory and a screen driver chip, the device memory storing a computer program, characterized in that a processor of the screen driver chip implements the steps of the method of any of claims 1 to 7 when the computer program is executed.

10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.