CN112612525A - Display device and display device starting method - Google Patents

Display device and display device starting method Download PDF

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Publication number
CN112612525A
CN112612525A CN202011540840.9A CN202011540840A CN112612525A CN 112612525 A CN112612525 A CN 112612525A CN 202011540840 A CN202011540840 A CN 202011540840A CN 112612525 A CN112612525 A CN 112612525A
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China
Prior art keywords
commands
uboot
mode
display device
current mode
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CN202011540840.9A
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Chinese (zh)
Inventor
谭少峰
邱祉凯
姜超
李亚
李增波
董恩雪
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Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
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Priority to CN202011540840.9A priority Critical patent/CN112612525A/en
Publication of CN112612525A publication Critical patent/CN112612525A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/4401Bootstrapping
    • G06F9/4406Loading of operating system

Abstract

The application discloses a display device and a display device starting method, wherein after the display device is powered on, a Universal Boot Loader is started; judging a current mode; when the current mode is a factory mode, executing all Uboot commands by operating a Universal Boot Loader, wherein the Uboot commands comprise necessary commands and unnecessary commands which are classified in advance; and when the current mode is the user mode, skipping unnecessary commands, and executing necessary commands by operating the Universal Boot Loader. Therefore, when the display equipment is started in the user mode, only the necessary Uboot command is executed, but the unnecessary Uboot command is skipped, namely, after the basic software and hardware environment is built, the kernel mirror image data is directly loaded into the memory, so that the Uboot process is shortened, the time required by the Uboot process is reduced, the starting time is reduced on the whole, and the user experience is improved.

Description

Display device and display device starting method
Technical Field
The application relates to the technical field of display equipment, in particular to display equipment and a starting method of the display equipment.
Background
The display device may provide a user with a play screen such as audio, video, pictures, and the like. Nowadays, display devices can provide users with not only live television program content received through data broadcasting, but also various applications and service content such as network video, network games, and the like.
The display device based on the Android system or the linux system further causes the starting speed of the display device to be slower and slower due to the fact that the system size is larger and larger along with the optimization of the functions of the display device, and user experience is influenced.
Disclosure of Invention
The application provides a display device and a display device starting method, which can improve starting speed and improve user experience.
In some embodiments of the present application, there is provided a display apparatus including:
a display;
a controller to:
after the display equipment is powered on, starting a Universal Boot Loader;
judging a current mode, wherein the current mode is a factory mode or a user mode;
when the current mode is judged to be the factory mode, executing all Uboot commands by operating the Universal Boot Loader, wherein the Uboot commands comprise necessary commands and unnecessary commands which are classified in advance;
when the current mode is judged to be the user mode, skipping the unnecessary command, and executing the necessary command by operating the Universal Boot Loader;
and loading the kernel mirror image data into the memory after finishing all Uboot commands or all necessary commands.
In some embodiments of the present application, the starting a Universal Boot Loader includes: starting a Uboot bootstrap program; and guiding a Universal Boot Loader to start by operating the Uboot guiding program.
In some embodiments of the present application, the determining the current mode includes: obtaining the value of a target zone bit; if the value of the target zone bit is a first value, determining that the current mode is a factory mode; and if the value of the target zone bit is a second value, determining that the current mode is the user mode.
In some embodiments of the present application, the unnecessary commands include one or more of unifying system versions, determining whether to perform upgrade, determining whether to wait, controlling a power-on indicator, reloading an environment command, detecting a system memory map, and setting bootargs.
In some embodiments of the present application, the necessary commands include at least: and initializing the screen.
Therefore, when the display equipment is started in the user mode, only the necessary Uboot command is executed, but the unnecessary Uboot command is skipped, namely, after the basic software and hardware environment is built, the kernel mirror image data is directly loaded into the memory, so that the Uboot process is shortened, the time required by the Uboot process is reduced, the starting time is reduced on the whole, and the user experience is improved.
In some embodiments of the present application, a method for booting a display device is provided, where the method includes:
after the display equipment is powered on, starting a Universal Boot Loader;
judging a current mode, wherein the current mode is a factory mode or a user mode;
when the current mode is judged to be the factory mode, executing all Uboot commands by operating the Universal Boot Loader, wherein the Uboot commands comprise necessary commands and unnecessary commands which are classified in advance;
when the current mode is judged to be the user mode, skipping the unnecessary command, and executing the necessary command by operating the Universal Boot Loader;
and loading the kernel mirror image data into the memory after finishing all Uboot commands or all necessary commands.
Therefore, when the display equipment is started in the user mode, only the necessary Uboot command is executed, but the unnecessary Uboot command is skipped, namely, after the basic software and hardware environment is built, the kernel mirror image data is directly loaded into the memory, so that the Uboot process is shortened, the time required by the Uboot process is reduced, the starting time is reduced on the whole, and the user experience is improved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a usage scenario of a display device shown in some embodiments of the present application;
fig. 2 is a block diagram of a hardware configuration of the control apparatus 100 shown in some embodiments of the present application;
fig. 3 is a block diagram of a hardware configuration of a display device 200 shown in some embodiments of the present application;
FIG. 4 is a diagram of the software configuration in a display device 200 shown in some embodiments of the present application;
fig. 5 is a schematic diagram illustrating a power-on method of a display device according to some embodiments of the present disclosure.
Detailed Description
To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.
Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment. As shown in fig. 1, the display apparatus 200 is also in data communication with a server 400, and a user can operate the display apparatus 200 through the smart device 300 or the control device 100.
In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may control the display apparatus 200 by inputting a user instruction through at least one of a key on a remote controller, a voice input, a control panel input, and the like.
In some embodiments, the smart device 300 may include any of a mobile terminal, a tablet, a computer, a laptop, an AR/VR device, and the like.
In some embodiments, the smart device 300 may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.
In some embodiments, the smart device 300 and the display device may also be used for communication of data.
In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice instruction control of the user may be directly received by a module configured inside the display device 200 to obtain a voice instruction, or may be received by a voice control apparatus provided outside the display device 200.
In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.
In some embodiments, software steps executed by one step execution agent may be migrated on demand to another step execution agent in data communication therewith for execution. Illustratively, software steps performed by the server may be migrated to be performed on a display device in data communication therewith, and vice versa, as desired.
Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive to the display device 200, thereby mediating interaction between the user and the display device 200.
In some embodiments, the communication interface 130 is used for external communication, and includes at least one of a WIFI chip, a bluetooth module, NFC, or an alternative module.
In some embodiments, the user input/output interface 140 includes at least one of a microphone, a touchpad, a sensor, a key, or an alternative module.
Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.
In some embodiments, the display apparatus 200 includes at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface.
In some embodiments the controller comprises a central processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.
In some embodiments, the display 260 includes a display screen component for displaying pictures, and a driving component for driving image display, a component for receiving image signals from the controller output, displaying video content, image content, and menu manipulation interface, and a user manipulation UI interface, etc.
In some embodiments, the display 260 may be at least one of a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.
In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.
In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 400 through the communicator 220.
In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.
In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.
In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.
In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other actionable control. The operations related to the selected object are: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon.
In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a RAM Random Access Memory (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.
A CPU processor. For executing operating system and application program instructions stored in the memory, and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents. The CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.
In some embodiments, a graphics processor for generating various graphics objects, such as: at least one of an icon, an operation menu, and a user input instruction display figure. The graphic processor comprises an arithmetic unit, which performs operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.
In some embodiments, the video processor is configured to receive an external video signal, and perform at least one of video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a signal displayed or played on the direct display device 200.
In some embodiments, the video processor includes at least one of a demultiplexing module, a video decoding module, an image composition module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.
In some embodiments, the audio processor is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform at least one of noise reduction, digital-to-analog conversion, and amplification processing to obtain a sound signal that can be played in the speaker.
In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on display 260, and the user input interface receives the user input commands through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.
In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the User Interface is a Graphical User Interface (GUI), which refers to a User Interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include at least one of an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc. visual interface elements.
In some embodiments, user interface 280 is an interface that may be used to receive control inputs (e.g., physical buttons on the body of the display device, or the like).
In some embodiments, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.
Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.
In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.
The framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.
As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.
In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.
In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.
In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..
As shown in fig. 4, the kernel layer further includes a Universal Boot Loader, that is, a Boot Loader (hereinafter, referred to as a Uboot program) mainly used for the embedded system. The Uboot program mainly has the functions of reading kernel mirror image data from the flash and copying the kernel mirror image data into the memory so that the CPU can start the kernel. In addition, the kernel layer may further include a Uboot bootstrap program, such as a sboot, which may be started immediately after the device is powered on, and mainly functions to create a starting environment for the Uboot program, such as hardware device initialization, prepare a RAM space for loading codes of the Uboot program, and copy the codes of the Uboot program into the RAM space, so that the cpu starts the Uboot program.
It should be noted that the primary role of the Uboot program is to copy kernel image data into memory when the cpu starts a system kernel (kernel). However, before copying the kernel image data to the memory, many other steps need to be performed, such as determining the boot mode (whether to upgrade or not, entering standby or not, etc.), initializing the hardware devices to be used, and the like, such as a remote controller and a keypad thereof, initializing local keys, etc., deploying unified version data, and the like. And the display equipment executes the Uboot command through the Uboot program to complete various tasks until the kernel mirror image data is successfully copied into the memory.
It should be understood that, since the time required by the Uboot program to complete all the steps in the Uboot flow is accumulated into the boot time, the more Uboot commands are executed in the U-boot phase, the more steps are executed, the longer the time required is, and the slower the boot speed is. On this basis, the display device based on the Android system or the linux system further causes the starting speed of the display device to be slow and influences user experience because the system size is larger and larger along with the optimization of the functions of the display device.
In order to improve the starting speed of the display equipment, all Uboot commands executed in a Uboot stage are classified into necessary commands and unnecessary commands according to the necessity of each step in the Uboot flow for loading kernel mirror image data. After the display equipment is powered on, judging a current mode; if the current mode is the factory mode, all Uboot commands are executed, and if the current mode is the user mode, unnecessary commands are skipped over, and necessary commands are executed.
The necessary command is a Uboot command that must be executed to copy kernel image data to a memory in a user usage scenario, that is, a command that must be run to build a basic software and hardware environment. In some embodiments, the necessary commands may include code relocation (code relocation), driver init (driver init), loading of specific data into memory (db _ table init), screen initialization, boot logo decoding, and so on.
The unnecessary command is a Uboot command which is not required to be executed for copying the kernel image data into the memory in a user use scene. In some embodiments, the unnecessary commands may include one or more of a reload environment command (reload env), a system memory map (sync map) detection, bootargs setting, whether to perform an upgrade, whether to wait, a power-on indicator light control, and the like.
It should be noted that, in a factory test stage or a maintenance stage of the display device, the display device generally operates in a factory mode. In a user usage scenario, the display device typically operates in a user mode.
It can be seen from the above embodiments that, when the display device provided by the present application is started in the user mode, only the necessary Uboot command is executed, and the unnecessary Uboot command is skipped, that is, after the basic software and hardware environment is built, the kernel image data is directly loaded into the memory, so that the Uboot process is shortened, the time required by the Uboot process is reduced, the startup time is reduced overall, and the user experience is improved.
In specific implementation, after the display equipment is powered on, a Uboot bootstrap program (sboot) is started; loading a secure environment through a Uboot bootstrap program, such as hardware equipment initialization, preparing a RAM space for loading codes of the Uboot program, and copying the codes of the Uboot program into the RAM space so that a cpu (Universal Boot Loader) can start the Uboot program; then starting a Uboot program; by running the Uboot program, either the entire Uboot command is executed or the necessary t command is executed.
In some embodiments, all of the necessary commands may be split into two parts, according to the order of execution of the necessary commands, with a first part of the necessary commands being executed before the non-necessary commands and a second part of the necessary commands. For example, the first part of necessary commands may include code relocation (code relocation), driver initialization (driver init), and loading specific data into the memory (db _ table init), and the second part of necessary commands may include screen initialization and boot logo decoding. The non-essential commands are executed later than the first part of the essential commands and earlier than the second part of the essential commands.
Based on the above, if the current mode is the factory mode, the first part of necessary commands, the unnecessary commands and the second part of necessary commands are executed in sequence by running the Uboot program. And if the current mode is the user mode, sequentially executing all necessary commands by operating the Uboot program.
In some embodiments, prior to executing the unnecessary commands, the current mode is determined; if the current mode is judged to be the factory mode, sequentially executing all unnecessary commands, and then executing a second part Uboot command; and if the current working mode is judged to be the user mode, skipping the unnecessary commands and starting to sequentially execute the second part of the necessary commands.
In one example, after the Uboot program is started, the following steps are sequentially performed: code redirection, drive initialization, specific data loading to a memory (db _ table init), then judging the current mode, if the current mode is a factory mode, unifying system version, reloading environmental commands, detecting system memory mapping, judging whether upgrading is executed, judging whether standby is executed, and controlling a starting indicator light, an initialization screen and a decoding starting logo; if the mode is the user mode, directly initializing a screen and decoding the startup logo. In this example, the commands for code redirection, driver initialization, and loading of specific data into the memory are the first part of necessary commands, the system version is unified, the environment command is reloaded, the system memory mapping is detected, whether upgrade is performed or not is determined, whether standby is performed or not is determined, and the power-on indicator is controlled to be an unnecessary command, and the screen initialization and the power-on logo decoding are the second part of necessary commands.
In one implementation, the Uboot program runs, the value of the target flag bit, which is used to characterize the current mode, is read from the eMMC. For example, when the value of the target flag bit is a first value, the current mode is characterized as the factory mode, and when the value of the target flag bit is a second value, the current mode is characterized as the user mode. When the display device operates in the factory mode, a factory menu including an option for switching the operation mode of the display device may be displayed in response to a specific control instruction input, and the operation mode may be switched by operating the option. When the option is operated to open the factory mode and close the user mode, a first value is recorded in a target flag bit of the eMMC, and when the option is operated to open the user mode and close the factory mode, a second value is recorded in the target flag bit of the eMMC.
In another implementation manner, when the Uboot program runs, whether a start-up file corresponding to the factory mode exists locally is detected, if so, the current mode is determined to be the factory mode, and if not, the current mode is determined to be the user mode. When the display equipment is externally connected with a U disk, the Uboot program defaults to detect the U disk as a local storage.
Based on the above embodiments, the present application exemplarily shows a possible Uboot flow chart, as shown in fig. 5, the Uboot flow chart may include:
s501, after the display device is powered on, the Universal Boot Loader is started.
In specific implementation, after the display device is powered on, the Sboot program is started. And establishing a software/hardware environment for starting and running the Uboot program by running the Sboot program so as to start the Universal Boot Loader. The Sboot is a possible Uboot bootstrap program, and is used for building a software/hardware environment for starting and running the Uboot program, such as hardware device initialization, preparing a RAM space for loading codes of the Uboot program, and copying the codes of the Uboot program into the RAM space.
S502, judging a current mode, wherein the current mode is a factory mode or a user mode.
S503, when the current mode is judged to be the factory mode, all Uboot commands are executed by operating the Universal Boot Loader, and the Uboot commands comprise necessary commands and unnecessary commands which are classified in advance.
S504, when the current mode is judged to be the user mode, skipping the unnecessary command, and executing the necessary command by operating the Universal Boot Loader.
And S505, after all Uboot commands or all necessary commands are completed, loading the kernel mirror image data into a memory.
It should be understood that specific implementation manners of each step in the above-mentioned method for starting up the display device may refer to the foregoing display device embodiment, which is not described herein again. It can be seen from the above embodiments that, when the display device provided by the present application is started in the user mode, only the necessary Uboot command is executed, and the unnecessary Uboot command is skipped, that is, after the basic software and hardware environment is built, the kernel image data is directly loaded into the memory, so that the Uboot process is shortened, the time required by the Uboot process is reduced, the startup time is reduced overall, and the user experience is improved.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1. A display device, comprising:
a display;
a controller to:
after the display equipment is powered on, starting a Universal Boot Loader;
judging a current mode, wherein the current mode is a factory mode or a user mode;
when the current mode is judged to be the factory mode, executing all Uboot commands by operating the Universal Boot Loader, wherein the Uboot commands comprise necessary commands and unnecessary commands which are classified in advance;
when the current mode is judged to be the user mode, skipping the unnecessary command, and executing the necessary command by operating the Universal Boot Loader;
and loading the kernel mirror image data into the memory after finishing all Uboot commands or all necessary commands.
2. The display device of claim 1, wherein the launching a Universal Boot Loader comprises:
starting a Uboot bootstrap program;
and guiding a Universal Boot Loader to start by operating the Uboot guiding program.
3. The display device according to claim 1, wherein the determining the current mode comprises:
obtaining the value of a target zone bit;
if the value of the target zone bit is a first value, determining that the current mode is a factory mode;
and if the value of the target zone bit is a second value, determining that the current mode is the user mode.
4. The display device of claim 1, wherein the non-essential commands include one or more of unifying system versions, determining whether to perform an upgrade, determining whether to standby, controlling a power-on indicator light, reloading an environment command, detecting system memory mapping, and setting bootargs.
5. The display device according to claim 1, wherein the necessary commands include at least: and initializing the screen.
6. A method for starting up a display device is characterized by comprising the following steps:
after the display equipment is powered on, starting a Universal Boot Loader;
judging a current mode, wherein the current mode is a factory mode or a user mode;
when the current mode is judged to be the factory mode, executing all Uboot commands by operating the Universal Boot Loader, wherein the Uboot commands comprise necessary commands and unnecessary commands which are classified in advance;
when the current mode is judged to be the user mode, skipping the unnecessary command, and executing the necessary command by operating the Universal Boot Loader;
and loading the kernel mirror image data into the memory after finishing all Uboot commands or all necessary commands.
7. The method of claim 6, wherein the launching the Universal Boot Loader comprises:
starting a Uboot bootstrap program;
and guiding a Universal Boot Loader to start through the Uboot guiding program.
8. The method of claim 6, wherein said determining the current mode comprises:
obtaining the value of a target zone bit;
if the value of the target zone bit is a first value, determining that the current mode is a factory mode;
and if the value of the target zone bit is a second value, determining that the current mode is the user mode.
9. The method of claim 6, wherein the non-essential commands include one or more of unifying system versions, determining whether to perform upgrades, determining whether to standby, controlling a power-on indicator light, reloading environmental commands, detecting system memory maps, and setting bootargs.
10. The method according to claim 6, characterized in that said necessary commands comprise at least: and initializing the screen.
CN202011540840.9A 2020-12-23 2020-12-23 Display device and display device starting method Pending CN112612525A (en)

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CN113641423A (en) * 2021-08-31 2021-11-12 青岛海信传媒网络技术有限公司 Display device and system starting method
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