CN111026412A - Burning system and burning method of display driver - Google Patents
Burning system and burning method of display driver Download PDFInfo
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- CN111026412A CN111026412A CN201911177820.7A CN201911177820A CN111026412A CN 111026412 A CN111026412 A CN 111026412A CN 201911177820 A CN201911177820 A CN 201911177820A CN 111026412 A CN111026412 A CN 111026412A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 37
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
- G06F8/63—Image based installation; Cloning; Build to order
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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Abstract
The application discloses a burning system and a burning method of a display driver, wherein the burning system comprises: the burning jig is connected with a chip to be burned, wherein the burning chip comprises a first interface and a second interface, and the first interface is used for connecting the host computer to obtain a program to be burned; the chip to be burned is electrically connected with the second interface of the burning jig through the serial peripheral interface bus and is used for burning the program to be burned into the chip to be burned; the serial peripheral interface bus at least comprises a power signal wire for providing power for the chip to be burned. By the mode, code can be quickly burned under the condition of not lighting, early preparation work of a read-write program is reduced, and the unique standardization of a burning jig and burning software can be realized due to good compatibility.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a system and a method for programming a display driver.
Background
Thin-Film Transistor Liquid Crystal displays (TFT-LCDs) have the characteristics of small size, low power consumption, relatively low manufacturing cost, no radiation and the like, occupy a leading position in the current flat panel Display market, and are widely applied to various electronic devices, such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, desktop computers and the like.
In the production process of the liquid crystal display panel, various defects are easy to occur, rework (rework) is inevitably required to be performed on the liquid crystal display panel, and after the rework, related parameters, such as drive data (code) required by a timing controller, need to be modified according to the characteristics of the liquid crystal display panel. Referring to fig. 1, fig. 1 is a recording system for a driving circuit of a liquid crystal display in the prior art. The system shown in FIG. 1 includes a computer host 1, a burning tool 2, a timing controller 3 (including a timing control chip A and a non-volatile memory B), a signal generator 4 and a power supply 5. Wherein, the burning tool 2 is connected with the time sequence controller 3 through an I2C bus, and the time sequence control chip A is connected with the time sequence controller through the SPI
The (serial peripheral interface) bus is connected to the nonvolatile memory B.
The following problems may occur when the system is used to read and write data in the nonvolatile memory B: 1. I2C test points are adopted for burning and debugging, the burning time is slow, and the time is consumed when the work is reworked; 2. the signal generator 4 and the power supply 5 are not universal versions, and need to be matched with a control module of a display panel, so that the size is large and the compatibility is poor; 3. the burning tool 2 needs to be matched with the time sequence control chip A and needs to be driven by matched software, so that the compatibility is poor; 4. the computer host 1 is required to convert the burning data (code) into data which can be transmitted by I2C through the burning tool 2 and transmit the data to the timing control chip a, and then the timing control chip a converts the data into data which can be transmitted by SPI and writes the data into the nonvolatile memory B, so that the whole burning process is time-consuming.
Disclosure of Invention
The application provides a burning system and a burning method of a display driver, which can solve the problems of time consumption, poor compatibility, more burning system components and the like existing in burning of flash in the prior art.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a burning system of a display driver, the burning system including: the burning jig is connected with the chip to be burnt, and comprises a first interface and a second interface, wherein the first interface is used for connecting a computer host to obtain a program to be burnt; the chip to be burned is electrically connected with the second interface of the burning jig through a serial peripheral interface bus and is used for burning the program to be burned into the chip to be burned; the serial peripheral interface bus at least comprises a power signal line used for providing power for the chip to be burned.
The serial peripheral interface bus also comprises a write signal protection line.
The serial peripheral interface bus further comprises a data input signal line, a data output signal line, a clock signal line, a chip selection signal line and a grounding signal line.
The chip to be burned at least comprises a holding pin, and the holding pin is connected with the power signal line of the serial peripheral interface bus.
The first interface and the second interface of the burning jig are standard interfaces, and the second interface is matched with the pin of the chip to be burned.
The chip to be burned is a Flash chip.
In order to solve the above technical problem, the present application adopts another technical solution: provided is a burning method of a display driver, the burning method including: providing a program to be burned; and burning the program to be burnt into the chip to be burnt by adopting a burning jig through a serial peripheral interface bus, wherein the burning jig and the chip to be burnt are electrically connected through the serial peripheral interface bus, and the serial peripheral interface bus at least comprises a power signal wire for providing power for the chip to be burnt.
The serial peripheral interface bus also comprises a write signal protection line.
The serial peripheral interface bus further comprises a data input signal line, a data output signal line, a clock signal line, a chip selection signal line and a grounding signal line.
The chip to be burned at least comprises a holding pin, and the holding pin is connected with the power signal line of the serial peripheral interface bus.
The beneficial effect of this application is: the system and the method can provide a power supply and a signal source for the chip to be burnt by adding a power supply signal wire (a burning test wire of the chip to be burnt) on a serial peripheral interface bus, reduce the early preparation work of a read-write program, have good compatibility and realize the unique standardization of a burning jig and burning software. In addition, the method and the device directly burn the burning program into the chip to be burnt, and greatly improve the reading and writing speed of the chip to be burnt.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of a prior art chip burning system;
FIG. 2 is a schematic diagram of an embodiment of a programming system of a display driver according to the present application;
FIG. 3 is a flowchart illustrating a method for programming a display driver according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to FIG. 2, FIG. 2 is a schematic diagram illustrating a recording system of a display driver according to an embodiment of the present invention. Referring to fig. 2, the burning system of the display driver in the present application includes a burning jig 110 and a chip to be burned 120.
Optionally, the burning fixture 110 includes a first interface 111 and a second interface 112. The first interface 111 is used to connect the host computer 200 to obtain the program to be burned. It can be understood that, in the present embodiment, the computer host 200 stores the burning software, and the burning software can provide the burning programs required by different types of chips. Further, the writing jig 110 is also called a programmer, the writing jig 110 is actually a tool for writing data on a programmable integrated circuit, and the writing jig is mainly used for programming (or writing) chips such as a single chip microcomputer (including an embedded system)/a memory (including a BIOS). The first interface 111 and the second interface 112 of the burning jig 110 used in this embodiment are standard general interfaces, which have strong compatibility, can achieve unique standardization with the burning software in the computer host 200, and the read-write speed of the chip 120 to be burned (in this embodiment, a Flash chip) is fast. Furthermore, the program can be checked and recorded during burning on the basis of unique standardization and quick program reading and writing, so that the correctness of the burned program is ensured, the burning is convenient and quick, errors are avoided, the burning record can be backed up, and the follow-up investigation is facilitated.
Optionally, the chip 120 to be burned in the present application may be a Flash chip, and in a specific embodiment, the Flash chip is used for storing a code of the timing controller and storing driving data of the source driver. Further, the chip 120 to be burned is electrically connected to the second Interface 112 of the burning tool 110 through a Serial Peripheral Interface (SPI) bus 300, so as to burn the program to be burned into the chip 120 to be burned. The serial peripheral interface bus 300 at least includes a power signal line VDD33 for providing power to the chip 120 to be burned.
Referring to fig. 2, the chip to be burned 120 includes eight pins, which are a ground pin, a write-protect input pin, a power pin, a data input pin, a data output pin, a clock signal pin, a chip select signal pin, and a hold pin. One end of the power signal line VDD33 passing through the serial peripheral interface bus 300 is connected to the holding pin of the chip 120 to be burned, and the other end is connected to the second interface 112 of the burning tool 110. Optionally, in the actual burning process, on the premise of not affecting the read-write speed of the chip 120 to be burned, the HOLD pin HOLD on the chip 120 to be burned may be pulled up by the power signal line VDD33, and the power supply to the chip 120 to be burned may also be achieved by increasing the power signal line VDD33, without separately providing a power supply and a signal source. That is to say, the technical scheme who adopts in this application can remove the step that needs supporting lighting fixture and power among the prior art when burning to the chip, improves the poor condition of compatibility when burning to the chip.
Further referring to fig. 2, the spi bus 300 may further include a write signal protection line WP, a data input signal line SDI, a data output signal line SDO, a clock signal line SCK, a chip select signal line CS, and a ground signal line GND. The write signal protection line WP, a data input signal line SDI, a data output signal line SDO, a clock signal line SCK, a chip select signal line CS, and a ground signal line GND may be respectively connected to corresponding pins on the chip 120 to be burned.
In the prior art, I2C-WP cannot be shared in the burning process, so that write input protection is required to be pulled out independently in the actual use process, and therefore a WP pulling-up action is required to be added during rework work, and rework code time is reduced. According to the method, the write signal protection wire WP is added in the serial peripheral interface bus 300, so that the operation of independently processing WP during code burning can be omitted, and the burning time is saved.
In the above embodiment, by adding a power signal (a burning test line of a chip to be burned) on the basis of the prior art, a code can be quickly burned without lighting, that is, a power source and a signal source are provided for the chip to be burned by the power source of the burning jig, a matched signal source and power source do not need to be found, the early preparation work of a reading and writing program is reduced, and the only standardization of the burning jig and burning software can be realized due to good compatibility. In addition, the method and the device directly burn the burning program into the chip to be burnt, and greatly improve the reading and writing speed of the chip to be burnt.
Referring to fig. 3, fig. 3 is a schematic flow chart illustrating a method for programming a driver according to an embodiment of the present application, and as shown in fig. 3, the method for programming a driver according to the present application includes the following steps:
s100, providing a program to be burned.
With reference to fig. 2, in the present application, the program to be burned can be provided by the host computer 200, the host computer 200 stores burning software, and the burning software can provide burning programs required by chips of different models.
And S110, burning the program to be burnt into the chip to be burnt by adopting a burning jig through a serial peripheral interface bus, wherein the burning jig and the chip to be burnt are electrically connected through the serial peripheral interface bus, and the serial peripheral interface bus at least comprises a power signal wire for providing power for the chip to be burnt.
Optionally, the burning fixture 110 includes a first interface 111 and a second interface 112. The first interface 111 is used to connect the host computer 200 to obtain the program to be burned. It can be understood that, in the present embodiment, the computer host 200 stores the burning software, and the burning software can provide the burning programs required by different types of chips. Further, the writing jig 110 is also called a programmer, the writing jig 110 is actually a tool for writing data on a programmable integrated circuit, and the writing jig is mainly used for programming (or writing) chips such as a single chip microcomputer (including an embedded system)/a memory (including a BIOS). The first interface 111 and the second interface 112 of the burning jig 110 used in this embodiment are standard general interfaces, which have strong compatibility, can achieve unique standardization with the burning software in the computer host 200, and the read-write speed of the chip 120 to be burned (in this embodiment, a Flash chip) is fast. Furthermore, the program can be checked and recorded during burning on the basis of unique standardization and quick program reading and writing, so that the correctness of the burned program is ensured, the burning is convenient and quick, errors are avoided, the burning record can be backed up, and the follow-up investigation is facilitated.
The chip 120 to be burned in the present application may be a Flash chip, and is configured to store a code of the timing controller and drive data of the source driver. The chip 120 to be burned is electrically connected to the second interface 112 of the burning tool 110 through a Serial Peripheral Interface (SPI) bus 300, so as to burn the program to be burned into the chip 120 to be burned. The serial peripheral interface bus 300 at least includes a power signal line VDD33 for providing power to the chip 120 to be burned.
The chip to be burned 120 includes eight pins, which are a ground pin, a write-protection input pin, a power pin, a data input pin, a data output pin, a clock signal pin, a chip select signal pin, and a hold pin. One end of the power signal line VDD33 passing through the serial peripheral interface bus 300 is connected to the HOLD pin HOLD of the chip 120 to be burned, and the other end is connected to the second interface 112 of the burning jig 110. Optionally, in the actual burning process, on the premise of not affecting the read-write speed of the chip 120 to be burned, the HOLD pin HOLD on the chip 120 to be burned may be pulled up by the power signal line VDD33, and the power supply to the chip 120 to be burned may also be achieved by increasing the power signal line VDD33, without separately providing a power supply and a signal source. That is to say, the technical scheme who adopts in this application can remove the step that needs supporting lighting fixture and power among the prior art when burning to the chip, improves the poor condition of compatibility when burning to the chip.
Further referring to fig. 2, the spi bus 300 may further include a write signal protection line WP, a data input signal line SDI, a data output signal line SDO, a clock signal line SCK, a chip select signal line CS, and a ground signal line GND. The write signal protection line WP, a data input signal line SDI, a data output signal line SDO, a clock signal line SCK, a chip select signal line CS, and a ground signal line GND may be respectively connected to corresponding pins on the chip 120 to be burned.
In the prior art, I2C-WP cannot be shared in the burning process, so that write input protection is required to be pulled out independently in the actual use process, and therefore a WP pulling-up action is required to be added during rework work, and rework code time is reduced. According to the method, the write signal protection wire WP is added in the serial peripheral interface bus 300, so that the operation of independently processing WP during code burning can be omitted, and the burning time is saved.
In the above embodiment, by adding a power signal (a burning test line of a chip to be burned) on the basis of the prior art, a code can be quickly burned without lighting, that is, a power source and a signal source are provided for the chip to be burned by the power source of the burning jig, a matched signal source and power source do not need to be found, the early preparation work of a reading and writing program is reduced, and the only standardization of the burning jig and burning software can be realized due to good compatibility. In addition, the method and the device directly burn the burning program into the chip to be burnt, and greatly improve the reading and writing speed of the chip to be burnt.
In summary, it is easily understood by those skilled in the art that the present application provides a system and a method for burning a display driver, by adding a power signal (a burning test line of a chip to be burned) on the basis of the prior art, a code can be quickly burned without lighting, that is, a power source and a signal source are provided for the chip to be burned by the power source of the burning jig, a matched signal source and a power source do not need to be found, the early preparation work of a read/write program is reduced, and the unique standardization of the burning jig and the burning software can be realized due to good compatibility. In addition, the method and the device directly burn the burning program into the chip to be burnt, and greatly improve the reading and writing speed of the chip to be burnt.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A burn system for a display driver, the burn system comprising: a burning tool and a chip to be burned connected with the burning tool, wherein,
the burning jig comprises a first interface and a second interface, wherein the first interface is used for connecting a computer host to obtain a program to be burned;
the chip to be burned is electrically connected with the second interface of the burning jig through a serial peripheral interface bus so as to burn the program to be burned into the chip to be burned; the serial peripheral interface bus at least comprises a power signal line used for providing power for the chip to be burned.
2. The burning system of claim 1, wherein the serial peripheral interface bus further comprises a write signal protection line.
3. The recording system of claim 2, wherein the serial peripheral interface bus further comprises a data input signal line, a data output signal line, a clock signal line, a chip select signal line, and a ground signal line.
4. The burning system of claim 1, wherein the chip to be burned comprises at least a hold pin, and the hold pin is connected to the power signal line of the serial peripheral interface bus.
5. The burning system of claim 1, wherein the first interface and the second interface of the burning fixture are standard interfaces, and the second interface is matched with a pin of the chip to be burned.
6. The burning system of claim 1, wherein the chip to be burned is a Flash chip.
7. A burning method of a display driver is characterized by comprising the following steps:
providing a program to be burned;
and burning the program to be burnt into the chip to be burnt by adopting a burning jig through a serial peripheral interface bus, wherein the burning jig and the chip to be burnt are electrically connected through the serial peripheral interface bus, and the serial peripheral interface bus at least comprises a power signal wire for providing power for the chip to be burnt.
8. The burning method as claimed in claim 7, wherein the serial peripheral interface bus further includes a write signal protection line.
9. The method of claim 8, wherein the serial peripheral interface bus further comprises a data input signal line, a data output signal line, a clock signal line, a chip select signal line, and a ground signal line.
10. The burning method of claim 7, wherein the chip to be burned comprises at least a hold pin, and the hold pin is connected to the power signal line of the serial peripheral interface bus.
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| CN201911177820.7A CN111026412A (en) | 2019-11-27 | 2019-11-27 | Burning system and burning method of display driver |
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| CN201911177820.7A CN111026412A (en) | 2019-11-27 | 2019-11-27 | Burning system and burning method of display driver |
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