CN111800658A - Chip parameter writing method, television and storage medium - Google Patents

Chip parameter writing method, television and storage medium Download PDF

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Publication number
CN111800658A
CN111800658A CN201910304842.9A CN201910304842A CN111800658A CN 111800658 A CN111800658 A CN 111800658A CN 201910304842 A CN201910304842 A CN 201910304842A CN 111800658 A CN111800658 A CN 111800658A
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chip
television
gamma
registers
main
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CN201910304842.9A
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CN111800658B (en
Inventor
汪琴
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Shenzhen Konka Electronic Technology Co Ltd
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Shenzhen Konka Electronic Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4435—Memory management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data

Abstract

The invention discloses a chip parameter writing method, a television and a storage medium, wherein the method comprises the following steps: when the television is detected to be electrified, the PM chip and the Gamma chip transmit data in the EEPROM to the register; the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display; when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus; and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time. The invention only erases the EEPROM of the PM chip and the Gamma chip when the television is started for the first time, reduces the risk of software and hardware errors, and only erases the EEPROM once in the use process of the television, thereby effectively prolonging the service life of the television.

Description

Chip parameter writing method, television and storage medium
Technical Field
The invention relates to the technical field of computer application, in particular to a chip parameter writing method, a television and a storage medium.
Background
In the existing television on the market, in order to reduce the cost of the whole television, a Tconless screen (the Tconless screen refers to that a screen end is not integrated with a Tcon module, and the Tcon module is integrated with a television main board or a Tcon chip is integrated inside an MCU) is increasingly used, namely, a Tcon (Tcon is also called a logic board, a screen driving board and a central control board) circuit of a liquid crystal screen is changed from a television whole manufacturer to a television main board by processing an LVDS image data input signal sent by a digital board through the logic board, converting the LVDS image data input signal into an LVDS signal capable of driving the liquid crystal screen and directly sending the LVDS signal to an LVDS receiving chip of the liquid crystal screen, wherein the input signal comprises three types of signals, namely an RGB data signal, a clock signal and a. The Tcon circuit needs to use a PM chip (Power Manager chip) and a Gamma chip (programmable Gamma correction buffer circuit chip), and the main chip of the television needs to write the voltage parameters of the adapted glass into the two ICs to normally light the liquid crystal screen.
The existing software method for writing parameters into PM chip and Gamma chip is that when the TV is started, the wrong parameter value in EEPROM (electrically erasable programmable read-only memory) is loaded into register, then the TV main chip writes the correct parameter into it through I2C bus.
That is to say, in the existing software method for writing parameters to the PM chip and the Gamma chip, when the television is turned on each time, the television main chip writes correct parameters into the PM chip and the Gamma chip through the I2C bus, and because the two voltage values are different, the output voltages of the PM chip and the Gamma chip have steps, and the software and the hardware have risks of errors, and the EEPROM is erased and written once, so that the service life of the television is reduced.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention mainly aims to provide a chip parameter writing method, a television and a storage medium, and aims to solve the problems that in the prior art, when the television is started, a main chip of the television needs to write correct parameters into a PM chip and a Gamma chip through an I2C bus, the output voltages of the PM chip and the Gamma chip have steps due to different voltage values at two times, software and hardware have the risk of errors, and the service life of the television is shortened by performing one-time erasing operation on an EEPROM.
In order to achieve the above object, the present invention provides a method for writing chip parameters, which comprises the following steps:
when the television is detected to be electrified, the PM chip and the Gamma chip transmit data in the EEPROM to the register;
the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display;
when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus;
and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time.
Optionally, the chip parameter writing method, wherein after the step of reading the registers of the PM chip and the Gamma chip by the main chip of the television and comparing the read registers with the correct voltage parameter table of the adaptive liquid crystal display stored in the main chip, further includes:
when the data read from the registers of the PM chip and the Gamma chip are consistent with the data of the voltage parameter table in the main chip, the EEPROM does not need to be operated.
Optionally, the chip parameter writing method further includes:
when the television is powered on and started for the first time, the PM chip and the Gamma chip transmit the initial curing parameters in the EEPROM to the register;
the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display;
when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus;
and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time.
Optionally, the chip parameter writing method further includes:
when the television is powered on and started up for the second time, the data in the EEPROM is written in by the main chip through the I2C bus when the television is started up for the first time;
the PM chip and the Gamma chip transmit data in the EEPROM to the register, and the main chip reads the data of the register and compares the data with a voltage parameter table stored in the television main chip;
the data read from the registers of the PM chip and the Gamma chip are necessarily consistent with the data of the voltage parameter table in the main chip, and the EEPROM does not need to be operated.
Optionally, the chip parameter writing method further includes:
after the television is powered on and started up for the first time to complete the parameter configuration of the register, the EEPROM does not need to be operated after the television is started up every time.
Optionally, in the chip parameter writing method, the PM chip and the Gamma chip are connected to the main chip through the same I2C bus, the I2C addresses of the PM chip and the Gamma chip are different, and the main chip is distinguished through the I2C address.
Optionally, in the method for writing chip parameters, after the television completes the first power-on and power-on, the PM chip and the Gamma chip detect steps existing in a waveform through an oscilloscope in a voltage output change process.
Optionally, in the method for writing chip parameters, after the television is powered on and turned on for the first time, the step in the waveform cannot be detected every time the television is turned on.
In addition, to achieve the above object, the present invention further provides a television, wherein the television includes:
PM chip, Gamma chip and main chip;
the PM chip and the Gamma chip are connected to the main chip through the same I2C bus, the I2C addresses of the PM chip and the Gamma chip are different, and the main chip distinguishes the PM chip and the Gamma chip through the I2C address;
the television set further comprises: the chip parameter writing program is used for realizing the steps of the chip parameter writing method when being executed by the processor.
In addition, in order to achieve the above object, the present invention further provides a storage medium, wherein the storage medium stores a chip parameter writing program, and the chip parameter writing program implements the steps of the chip parameter writing method as described above when executed by a processor.
According to the invention, the data of the EEPROM of the PM chip and the Gamma chip is compared with the data table stored in the main chip of the television, the EEPROM of the PM chip and the Gamma chip is erased and written only when the television is started for the first time, and the waveforms output by the voltage of the PM chip and the Gamma chip have steps only when the television is electrified for the first time, so that the risk of software and hardware errors is reduced, and the EEPROM is erased and written only once in the use process of the television, so that the service life of the television is effectively prolonged.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of a method for writing chip parameters according to the present invention;
FIG. 2 is a block diagram of the hardware connection between the PM chip, the Gamma chip and the main chip of the TV set according to the preferred embodiment of the present invention;
fig. 3 is a schematic operating environment diagram of a television according to a preferred embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the method for writing chip parameters according to the preferred embodiment of the present invention includes the following steps:
step S10, when the TV is detected to be electrified, the PM chip and the Gamma chip transmit the data in the EEPROM to a register;
step S20, the main chip of the television reads the registers of the PM chip and the Gamma chip and compares the read registers with the correct voltage parameter table of the adaptive liquid crystal display stored in the main chip;
step S30, when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing the correct voltage parameters to the registers of the PM chip and the Gamma chip through the I2C bus;
and step S40, storing the parameters of the registers of the PM chip and the Gamma chip into the EEPROM for use when the computer is started next time.
Specifically, the PM chip and the Gamma chip in the present invention are connected to the main chip of the television through the same I2C bus (Inter-integrated circuit, simple, bidirectional two-wire synchronous serial bus, which only needs two wires to transmit information between devices connected to the bus), the I2C addresses of the two chips are different, and the main chip of the television distinguishes them through the I2C address.
The PM chip can provide required programmable voltages for the liquid crystal screen, such as VGH and VGL for controlling the opening and closing of the liquid crystal thin film transistor, liquid crystal analog circuit power supply AVDD and digital circuit power supply DVDD. Different models of liquid crystal screens have different voltages, and a set of voltage parameter output is fixed in an EEPROM and a register when a PM chip leaves a factory, but the set of voltage is often inconsistent with the adaptive liquid crystal screen voltage, and correct voltage needs to be written in through software.
The Gamma chip can generate 14 paths of programmable Gamma voltage and VCOM voltage for the liquid crystal screen, wherein the Gamma voltage is the gray scale correction voltage of the liquid crystal screen, and the VCOM is the common electrode voltage of the liquid crystal thin film transistor. Similar to the PM chip, the Gamma chip also has a set of fixed voltage parameter output when leaving the factory, and this voltage is inconsistent with the adapted lcd voltage and needs to be written in by software.
EEPROM is an abbreviation of english Electrically Erasable Programmable read only memory, i.e. Electrically Erasable Programmable read only memory. Data in the EEPROM cannot disappear after power failure, but the typical erasing frequency of the EEPROM is 10 ten thousand, namely the erasing frequency within 10 ten thousand can also ensure that the data can be read and read normally, and whether the data is correct or not can not be ensured after the data exceeds 10 ten thousand; unlike EEPROM, the data in the register disappears after power-down and cannot be stored.
Specifically, when the television is powered on every time, the data of the EEPROM of the PM chip and the data of the EEPROM of the Gamma chip are transmitted to the register, and the required voltage is provided for the liquid crystal screen. The correct data table (voltage parameter table) of the voltage of the adaptive liquid crystal screen is stored in the television main chip. When the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the data table (voltage parameter table) in the main chip of the television, the main chip of the television can rewrite correct data into the registers for the PM chip and the Gamma chip through an I2C bus, and then the data in the registers are stored into an EEPROM for the use when the television is started next time.
Further, the following detailed analysis was performed in two cases:
(1) the television is powered on and started for the first time:
the initial parameters of the EEPROM of the PM chip and the Gamma chip are cured when the PM chip and the Gamma chip leave a factory, and the parameters are inconsistent with the voltage parameters required by the liquid crystal screen.
When the television is powered on and started for the first time, the PM chip and the Gamma chip transmit the solidification initial parameters of the EEPROM to the register, and the television main chip reads the registers of the PM chip and the Gamma chip and compares the read parameters with a correct voltage parameter table which is stored in the television main chip and is adapted to the liquid crystal display; after the television main chip is compared and found to be inconsistent, correct voltage parameters are written to the registers of the PM chip and the Gamma chip through the I2C bus, the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM again, and the EEPROM data does not disappear after power failure and is used for starting the television next time.
During the voltage output change process of the PM chip and the Gamma chip, a step exists between the oscillograph quantity and the waveform.
(2) And (3) powering on and starting up the television for the second time:
when the television is powered on for the second time, the data in the EEPROM is no longer the data of the PM chip and the Gamma chip when leaving the factory, but the data is written into the EEPROM through the I2C bus by the main chip of the television when the television is powered on for the first time.
At this time, the data of PM chip and Gamma chip EEPROM are transferred to the register, and the TV main chip reads the data of the register and compares with the data table stored in the TV main chip. At this time, the data table of the television main chip is the same as the parameters of the registers of the PM chip and the Gamma chip, so the software flow is directly finished, the EEPROM does not need to be operated, and the voltage output waveforms of the PM chip and the Gamma chip with oscillograph amount do not have steps.
In addition, the software flow of each power-on and power-on of the television is consistent with that of the second power-on and power-on.
From the above process analysis, it can be found that, in the use process of the television, the voltage output waveforms of the PM chip and the Gamma chip have steps only when the television is powered on for the first time, and no step exists after the television is powered on, so that the risk of errors of software and hardware is reduced; and the EEPROM can be erased only after the first electrification, and the subsequent erasing is not needed, so that the service life of the television is effectively prolonged.
The invention provides a realization mode of writing parameters to a PM chip and a Gamma chip by a Tconless screen, comparing the data of the EEPROM of the PM chip and the Gamma chip with the data table stored in the main chip of a television, only erasing the EEPROM of the PM chip and the Gamma chip when the television is started for the first time, and only when the television is electrified for the first time, the voltage output waveforms of the PM chip and the Gamma chip have steps, thereby reducing the risk of software and hardware errors; and the EEPROM is only erased once in the use process of the television, so that the service life of the television is effectively prolonged.
Further, as shown in fig. 2, based on the above chip parameter writing method, the present invention also provides a television set, where the television set includes:
a PM chip 200, a Gamma chip 300 and a main chip 100;
the PM chip 200 and the Gamma chip 300 are connected to the main chip 100 through the same I2C bus, the PM chip 200 and the Gamma chip 300 have different I2C addresses, and the main chip 100 distinguishes the PM chip 200 and the Gamma chip 300 through the I2C address.
Further, as shown in fig. 3, the television further includes: a processor 10, a memory 20, and a display 30. Fig. 3 shows only some of the components of the television set, but it is to be understood that not all of the shown components are required to be implemented, and that more or fewer components may be implemented instead.
The memory 20 may in some embodiments be an internal storage unit of the television, such as a hard disk or a memory of the television. In other embodiments, the memory 20 may also be an external storage device of the television, such as a plug-in hard disk provided on the television, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 20 may also include both an internal storage unit and an external storage device of the television set. The memory 20 is used for storing application software installed in the television and various types of data, such as program codes of the installed television. The memory 20 may also be used to temporarily store data that has been output or is to be output. In an embodiment, the memory 20 stores a chip parameter writing program 40, and the chip parameter writing program 40 can be executed by the processor 10, so as to implement the chip parameter writing method in the present application.
The processor 10 may be, in some embodiments, a Central Processing Unit (CPU), a microprocessor or other data Processing chip, and is used for executing program codes stored in the memory 20 or Processing data, such as executing the chip parameter writing method.
The display 30 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch panel, or the like in some embodiments. The display 30 is used to display information on the television and to display a visual user interface. The components 10-30 of the television set communicate with each other via a system bus.
In one embodiment, when the processor 10 executes the chip parameter write program 40 in the memory 20, the following steps are implemented:
when the television is detected to be electrified, the PM chip and the Gamma chip transmit data in the EEPROM to the register;
the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display;
when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus;
and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time.
The television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a voltage parameter table which is stored in the main chip and is correctly adapted to the liquid crystal display, and the method also comprises the following steps:
when the data read from the registers of the PM chip and the Gamma chip are consistent with the data of the voltage parameter table in the main chip, the EEPROM does not need to be operated.
The chip parameter writing method further comprises the following steps:
when the television is powered on and started for the first time, the PM chip and the Gamma chip transmit the initial curing parameters in the EEPROM to the register;
the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display;
when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus;
and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time.
The chip parameter writing method further comprises the following steps:
when the television is powered on and started up for the second time, the data in the EEPROM is written in by the main chip through the I2C bus when the television is started up for the first time;
the PM chip and the Gamma chip transmit data in the EEPROM to the register, and the main chip reads the data of the register and compares the data with a voltage parameter table stored in the television main chip;
the data read from the registers of the PM chip and the Gamma chip are necessarily consistent with the data of the voltage parameter table in the main chip, and the EEPROM does not need to be operated.
The chip parameter writing method further comprises the following steps:
after the television is powered on and started up for the first time to complete the parameter configuration of the register, the EEPROM does not need to be operated after the television is started up every time.
The PM chip and the Gamma chip are connected to the main chip through the same I2C bus, the I2C addresses of the PM chip and the Gamma chip are different, and the main chip is distinguished through the I2C address.
And after the television finishes the first power-on startup for the first time, the steps existing in the waveform are detected by the oscilloscope in the voltage output change process of the PM chip and the Gamma chip.
After the television is powered on for the first time, the step in the waveform cannot be detected every time the television is powered on.
The present invention further provides a storage medium, wherein the storage medium stores a chip parameter writing program, and the chip parameter writing program implements the steps of the chip parameter writing method when executed by a processor.
In summary, the present invention provides a chip parameter writing method, a television and a storage medium, where the method includes: when the television is detected to be electrified, the PM chip and the Gamma chip transmit data in the EEPROM to the register; the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display; when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus; and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time. The invention compares the data of the PM chip and the EEPROM of the Gamma chip with the data table stored in the main chip of the television, only erases the PM chip and the EEPROM of the Gamma chip when the television is started for the first time, reduces the risk of software and hardware errors, and only erases the EEPROM once in the use process of the television, thereby effectively prolonging the service life of the television.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (10)

1. A chip parameter writing method is characterized by comprising the following steps:
when the television is detected to be electrified, the PM chip and the Gamma chip transmit data in the EEPROM to the register;
the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display;
when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus;
and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time.
2. The method of claim 1, wherein the television main chip reads the registers of the PM chip and the Gamma chip and compares the read registers with the correct voltage parameter table of the adaptive lcd stored in the main chip, further comprising:
when the data read from the registers of the PM chip and the Gamma chip are consistent with the data of the voltage parameter table in the main chip, the EEPROM does not need to be operated.
3. The chip parameter writing method according to claim 1, further comprising:
when the television is powered on and started for the first time, the PM chip and the Gamma chip transmit the initial curing parameters in the EEPROM to the register;
the television main chip reads the registers of the PM chip and the Gamma chip and compares the registers with a correct voltage parameter table which is stored in the main chip and is adapted to the liquid crystal display;
when the data read from the registers of the PM chip and the Gamma chip are inconsistent with the data of the voltage parameter table in the main chip, writing correct voltage parameters into the registers of the PM chip and the Gamma chip through an I2C bus;
and the parameters of the registers of the PM chip and the Gamma chip are stored in the EEPROM and used for starting up next time.
4. The chip parameter writing method according to claim 3, further comprising:
when the television is powered on and started up for the second time, the data in the EEPROM is written in by the main chip through the I2C bus when the television is started up for the first time;
the PM chip and the Gamma chip transmit data in the EEPROM to the register, and the main chip reads the data of the register and compares the data with a voltage parameter table stored in the television main chip;
the data read from the registers of the PM chip and the Gamma chip are necessarily consistent with the data of the voltage parameter table in the main chip, and the EEPROM does not need to be operated.
5. The chip parameter writing method according to claim 4, further comprising:
after the television is powered on and started up for the first time to complete the parameter configuration of the register, the EEPROM does not need to be operated after the television is started up every time.
6. The chip parameter writing method of claim 1, wherein the PM chip and the Gamma chip are connected to the main chip through the same I2C bus, the PM chip and the Gamma chip have different I2C addresses, and the main chip is distinguished by I2C addresses.
7. The chip parameter writing method according to claim 3, wherein after the television completes a first power-on and power-on, the steps existing in the waveform are detected by the oscilloscope during the voltage output variation process of the PM chip and the Gamma chip.
8. The method according to claim 4, wherein after the television is powered on for the first time, the step in the waveform cannot be detected every time the television is powered on.
9. A television set, characterized in that the television set comprises:
PM chip, Gamma chip and main chip;
the PM chip and the Gamma chip are connected to the main chip through the same I2C bus, the I2C addresses of the PM chip and the Gamma chip are different, and the main chip distinguishes the PM chip and the Gamma chip through the I2C address;
the television set further comprises: memory, a processor and a chip parameter writer stored on the memory and operable on the processor, the chip parameter writer when executed by the processor implementing the steps of the chip parameter writing method according to any one of claims 1 to 8.
10. A storage medium, characterized in that the storage medium stores a chip parameter writer program that implements the steps of the chip parameter writing method according to any one of claims 1 to 8 when executed by a processor.
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WO2023010251A1 (en) * 2021-08-02 2023-02-09 深圳Tcl新技术有限公司 Display control method and apparatus, electronic device, and storage medium
CN116088953A (en) * 2023-03-15 2023-05-09 无锡前诺德半导体有限公司 Method for modifying default parameters of circuit and initialization parameter selection circuit
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