CN111400218B - MIPI high-speed signal generation method and system compatible with multiple data formats - Google Patents
MIPI high-speed signal generation method and system compatible with multiple data formats Download PDFInfo
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- CN111400218B CN111400218B CN202010163331.2A CN202010163331A CN111400218B CN 111400218 B CN111400218 B CN 111400218B CN 202010163331 A CN202010163331 A CN 202010163331A CN 111400218 B CN111400218 B CN 111400218B
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- 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
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Abstract
The invention discloses an MIPI high-speed signal generating method and system compatible with multiple data formats, which are characterized in that control parameter data are acquired by acquiring first bitmap data of a detected picture to generate a first control instruction, a second control instruction and a third control instruction; converting the first bitmap data into second bitmap data in a target format according to the first control instruction; recombining the second bitmap data into a bit width with a preset size according to the second control instruction to obtain third bitmap data; adding a data packet header and a data packet trailer in the third bitmap data according to a third control instruction to obtain the fourth bitmap data, wherein the data packet header comprises format information of the third bitmap data, and the data packet trailer comprises high-speed signal communication protocol data; therefore, the generated high-speed test signal can be transmitted according to a preset MIPI high-speed signal communication protocol, and the method and the system are suitable for testing liquid crystal modules in various data formats.
Description
Technical Field
The invention belongs to the field of signal generators, and particularly relates to an MIPI high-speed signal generating method and system compatible with multiple data formats.
Background
In the field of display panel production, a lighting test for a display panel by a lighting detection device is required, and the lighting test stage is important for quality control of the display panel, and whether the display panel has a bad spot, such as a bright spot or a dark spot, can be detected in the lighting test stage. A Video Pattern Signal generator (PG) is a device for performing a lighting test on a display panel.
At present, signal generating and detecting equipment for detecting a mipi (Mobile Industry Processor Interface) liquid crystal module outputs a mipi signal based on an rgb data format, a mipi signal generator aiming at other data formats such as an ycbcr data format is not provided, module manufacturers begin to produce mipi liquid crystal modules based on other data formats (an ycbcr format), and therefore, a mipi signal sending device capable of generating mipi signals based on various data formats needs to be produced to meet market requirements.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides an MIPI high-speed signal generation method and an MIPI high-speed signal generation system compatible with various data formats.
To achieve the above object, according to an aspect of the present invention, there is provided an MIPI high-speed signal generating method compatible with a plurality of data formats, the method including the steps of:
acquiring first bitmap data of a detected picture, and acquiring control parameter data to generate a first control instruction, a second control instruction and a third control instruction; converting the first bitmap data into second bitmap data in a target format according to the first control instruction; recombining the second bitmap data into a bit width with a preset size according to the second control instruction to obtain third bitmap data; and adding a data packet header and a data packet trailer in the third bitmap data according to a third control instruction to obtain fourth bitmap data, wherein the data packet header comprises format information corresponding to a target format, and the data packet trailer comprises MIPI high-speed signal communication protocol data, and sending the fourth bitmap data to a corresponding MIPI physical connector.
As a further improvement of the present invention, the acquiring of the first bitmap data of the detected picture specifically includes:
and removing the file header and the image parameters of the detected image data according to a preset data transmission protocol.
As a further improvement of the present invention, the second bitmap data converted from the first bitmap data into the target format according to the first control command is replaced by:
and adding a control signal into the first bitmap data according to the first control instruction, converting the first bitmap data added with the data into second bitmap data in a specified format, wherein the control signal comprises a character superposition function signal and a data movement function signal.
As a further improvement of the present invention, converting the first bitmap data into the second bitmap data in the target format according to the first control instruction comprises: and starting a corresponding format conversion module according to a target format contained in the first control instruction, wherein the target format comprises an ycbcr format, an spr format and a custom format.
As a further improvement of the present invention, before sending the fourth graph data to the corresponding MIPI physical connection port, the method further includes: and acquiring control parameter data to generate a fourth control instruction, wherein the fourth control instruction is a lane number control signal, the fourth bitmap data packet is spread on each lane according to the MIPI protocol requirement according to the lane number control signal, and the corresponding lane data is sent to the corresponding MIPI physical connection port.
To achieve the above objects, according to another aspect of the present invention, there is provided an MIPI high-speed signal generation system compatible with a plurality of data formats, the system including a data processing module, a cache module, and a control module, wherein,
the control module is used for acquiring control parameter data to generate a first control instruction, a second control instruction and a third control instruction;
the data processing module acquires first bitmap data of the detection picture, stores the first bitmap data in the cache module, and converts the first bitmap data into second bitmap data in a target format according to a first control instruction; recombining the second bitmap data into a bit width with a preset size according to the second control instruction to obtain third bitmap data; adding a data packet header and a data packet trailer in the third bitmap data according to a third control instruction to obtain the fourth bitmap data, wherein the data packet header comprises format information corresponding to a target format, and the data packet trailer comprises MIPI high-speed signal communication protocol data; and transmitting the fourth bitmap data according to a preset high-speed signal communication protocol.
As a further improvement of the present invention, the acquiring of the first bitmap data of the detected picture specifically includes:
and removing the file header and the image parameters of the detected image data according to a preset data transmission protocol.
As a further improvement of the present invention, the second bitmap data converted from the first bitmap data into the target format according to the first control command is replaced by:
and adding a control signal into the first bitmap data according to the first control instruction, converting the first bitmap data added with the data into second bitmap data in a specified format, wherein the control signal comprises a character superposition function signal and a data movement function signal.
As a further improvement of the present invention, converting the first bitmap data into the second bitmap data in the target format according to the first control instruction comprises: and starting a corresponding format conversion module according to a target format contained in the first control instruction, wherein the target format comprises an ycbcr format, an spr format and a custom format.
As a further improvement of the present invention, before sending the fourth graph data to the corresponding MIPI physical connection port, the method further includes: and acquiring control parameter data to generate a fourth control instruction, wherein the fourth control instruction is a lane number control signal, the fourth bitmap data packet is spread on each lane according to the MIPI protocol requirement according to the lane number control signal, and the corresponding lane data is sent to the corresponding MIPI physical connection port.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
the invention relates to a MIPI high-speed signal generating method and a MIPI high-speed signal generating system compatible with various data formats, which generate a corresponding control instruction by acquiring control parameter data, carry out bitmap data of a target format on original bitmap data according to the corresponding control instruction, and add a data packet header and a data packet tail, so that a generated high-speed test signal can be transmitted by an MIPI communication protocol, and the method and the system are suitable for testing liquid crystal modules of various data formats; meanwhile, by arranging a plurality of format conversion modules and starting the corresponding format conversion modules according to needs, the high-speed test signals can be converted into an ycbcr format, an spr format and a custom format, so that various test requirements can be met; the invention recombines the bitmap data converted into different target formats, thereby converting the bitmap data into uniform bit width, facilitating subsequent module processing and increasing the universality of the whole device.
According to the MIPI high-speed signal generating method and the MIPI high-speed signal generating system compatible with various data formats, the first bitmap data are added through the control signals, so that the generated high-speed test signals can realize corresponding control functions such as a character superposition function and a data movement function according to requirements.
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Fig. 1 is a schematic diagram of an MIPI high-speed signal generation method compatible with multiple data formats according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to specific embodiments.
Fig. 1 is a schematic diagram of an MIPI high-speed signal generation method compatible with multiple data formats according to an embodiment of the present invention. As shown in fig. 1, a MIPI high-speed signal generating method compatible with multiple data formats includes the following steps:
acquiring first bitmap data of a detected picture, and acquiring control parameter data to generate a first control instruction, a second control instruction and a third control instruction;
converting the first bitmap data into second bitmap data in a target format according to the first control instruction; recombining the second bitmap data into a bit width with a preset size according to the second control instruction to obtain third bitmap data; adding a data packet header and a data packet trailer in the third bitmap data according to a third control instruction to obtain fourth bitmap data, wherein the data packet header comprises format information corresponding to a target format, and the data packet trailer comprises MIPI high-speed signal communication protocol data; and sending the fourth graph data to the corresponding MIPI physical connection port.
As a preferred embodiment, the process of obtaining the first bitmap data of the detected picture is to take the detected picture format as the bmp picture format as an example, since the file header and the image parameter data need to be added according to the data transmission protocol in the data transmission process, and the file header and the image parameter of the detected picture are removed, the first bitmap data is obtained, the first bitmap data is RGB data of the original detected picture, of course, the bmp picture format is only an example, and other types of pictures are correspondingly adjusted according to the processing mode of the type or according to different types.
As a preferred embodiment, the first bitmap data may be buffered in a buffer module, which may be a DDR or other type of buffer device.
As a preferred embodiment, the first bitmap data is converted into the second bitmap data in the target format according to the first control instruction, instead, the control signal data is added to the first bitmap data according to the first control instruction, and the first bitmap data after data addition is converted into the second bitmap data in the target format, where the control signal type includes the character superimposition function signal and the data movement function signal, although the above signal type is only an example, and may be adjusted accordingly according to the test requirement of the high-speed signal.
As a preferred embodiment, the second bitmap data for converting the first bitmap data into the target format according to the first control instruction is specifically, taking the designated format as the ycbcr format as an example, and the received first control instruction is a control signal of the designated format as the ycbcr format, then starting a corresponding ycbcr format conversion module, wherein the specific conversion process is that the ycbcr format module is divided into two branches, one is a ycbcr4:2:2 processing branch, and the other is a ycbcr4:2:0 processing branch, and each branch completes the corresponding rgb to ycbcr format conversion according to a conversion formula specified by a protocol; taking the designated format as the spr format as an example, if the received first control instruction is a control signal of which the designated format is the spr format, starting a corresponding spr format conversion module, wherein the specific conversion process is to complete the corresponding rgb-to-spr format conversion according to a conversion rule specified by the spr protocol; as an example, the designated format may also be a custom format, the custom format may be set according to a test requirement, and if the received first control instruction is a control signal in which the designated format is the custom format, the corresponding custom format conversion module is enabled, where a specific conversion process is to complete conversion from the rgb to the custom format according to a conversion rule specified by a custom format protocol, which is just one example, and may perform corresponding adjustment according to different protocol contents.
As a preferred embodiment, converting the second bitmap data into a bit width of a preset size according to the second control instruction is specifically that, taking an example of conversion from ycbcr, the 24bRGB data becomes 16b data after being converted from the ycbcr format, the pixel rearrangement module needs to rearrange the data of 16b and 16b … into 24b and 24b … in sequence, and by unifying the converted data of different formats into the same bit width, the subsequent module processing is facilitated.
As a preferred embodiment, adding a data packet header and a data packet trailer in the third bitmap data according to the third control instruction is specifically to add a data packet header to the data after pixel rearrangement according to format control information included in the third control instruction, where the header type fields filled in different data formats are different, for example, if the data packet header is in RGB format, the filled data type field is 3E, and if the data packet header is in ycbcr format, the filled data type field is 2C.
As a preferred embodiment, the fourth graph data is transmitted according to a predetermined high-speed signal communication protocol, specifically, taking the MIPI high-speed signal transmission protocol as an example, the fourth graph data is spread on each transmission channel according to the requirement of the MIPI high-speed signal transmission protocol, taking 1/2/3/4/8lane (transmission channel) as an example, the transmission of the corresponding lane data to the corresponding physical interface is the MIPI high-speed signal, which is just an example, and the above can be adjusted according to different protocol contents.
An MIPI high-speed signal generating system compatible with a plurality of data formats comprises a data processing module, a cache module and a control module, wherein,
the control module is used for acquiring control parameter data to generate a first control instruction, a second control instruction and a third control instruction;
the data processing module acquires first bitmap data of the detection picture, stores the first bitmap data in the cache module, and converts the first bitmap data into second bitmap data in a target format according to a first control instruction; recombining the second bitmap data into a bit width with a preset size according to the second control instruction to obtain third bitmap data; adding a data packet header and a data packet trailer in the third bitmap data according to a third control instruction to obtain the fourth bitmap data, wherein the data packet header comprises format information corresponding to a target format, and the data packet trailer comprises MIPI high-speed signal communication protocol data; and transmitting the fourth bitmap data according to a preset high-speed signal communication protocol.
As a preferred embodiment, the process of obtaining the first bitmap data of the detected picture is to take the detected picture format as the bmp picture format as an example, since the file header and the image parameter data need to be added according to the data transmission protocol in the data transmission process, and the file header and the image parameter of the detected picture are removed, the first bitmap data is obtained, the first bitmap data is RGB data of the original detected picture, of course, the bmp picture format is only an example, and other types of pictures are correspondingly adjusted according to the processing mode of the type or according to different types.
As a preferred embodiment, the first bitmap data may be buffered in a buffer module, which may be a DDR or other type of buffer device.
As a preferred embodiment, the first bitmap data is converted into the second bitmap data in the target format according to the first control instruction, instead, the control signal data is added to the first bitmap data according to the first control instruction, and the first bitmap data after data addition is converted into the second bitmap data in the target format, where the control signal type includes the character superimposition function signal and the data movement function signal, although the above signal type is only an example, and may be adjusted accordingly according to the test requirement of the high-speed signal.
As a preferred embodiment, the second bitmap data for converting the first bitmap data into the target format according to the first control instruction is specifically, taking the designated format as the ycbcr format as an example, and the received first control instruction is a control signal of the designated format as the ycbcr format, then starting a corresponding ycbcr format conversion module, wherein the specific conversion process is that the ycbcr format module is divided into two branches, one is a ycbcr4:2:2 processing branch, and the other is a ycbcr4:2:0 processing branch, and each branch completes the corresponding rgb to ycbcr format conversion according to a conversion formula specified by a protocol; taking the designated format as the spr format as an example, if the received first control instruction is a control signal of which the designated format is the spr format, starting a corresponding spr format conversion module, wherein the specific conversion process is to complete the corresponding rgb-to-spr format conversion according to a conversion rule specified by the spr protocol; as an example, the designated format may also be a custom format, the custom format may be set according to a test requirement, and if the received first control instruction is a control signal in which the designated format is the custom format, the corresponding custom format conversion module is enabled, where a specific conversion process is to complete conversion from the rgb to the custom format according to a conversion rule specified by a custom format protocol, which is just one example, and may perform corresponding adjustment according to different protocol contents.
As a preferred embodiment, converting the second bitmap data into a bit width of a preset size according to the second control instruction is specifically that, taking an example of conversion from ycbcr, the 24bRGB data becomes 16b data after being converted from the ycbcr format, the pixel rearrangement module needs to rearrange the data of 16b and 16b … into 24b and 24b … in sequence, and by unifying the converted data of different formats into the same bit width, the subsequent module processing is facilitated.
As a preferred embodiment, adding a data packet header and a data packet trailer in the third bitmap data according to the third control instruction is specifically to add a data packet header to the data after pixel rearrangement according to format control information included in the third control instruction, where the header type fields filled in different data formats are different, for example, if the data packet header is in RGB format, the filled data type field is 3E, and if the data packet header is in ycbcr format, the filled data type field is 2C.
As a preferred embodiment, the fourth graph data is transmitted according to a predetermined high-speed signal communication protocol, specifically, taking the MIPI high-speed signal transmission protocol as an example, the fourth graph data is spread on each transmission channel according to the requirement of the MIPI high-speed signal transmission protocol, taking 1/2/3/4/8lane (transmission channel) as an example, the transmission of the corresponding lane data to the corresponding physical interface is the MIPI high-speed signal, which is just an example, and the above can be adjusted according to different protocol contents.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An MIPI high-speed signal generating method compatible with a plurality of data formats is characterized by comprising the following steps:
acquiring first bitmap data of a detected picture, wherein the first bitmap data is RGB (red, green and blue) data of an original detected picture, and acquiring control parameter data to generate a first control instruction, a second control instruction and a third control instruction; converting the first bitmap data into second bitmap data in a target format according to the first control instruction; recombining the second bitmap data into a bit width with a preset size according to the second control instruction to obtain third bitmap data; and adding a data packet header and a data packet trailer in the third bitmap data according to the third control instruction to obtain fourth bitmap data, wherein the data packet header comprises format information corresponding to a target format, and the data packet trailer comprises MIPI high-speed signal communication protocol data, and the fourth bitmap data is sent to a corresponding MIPI physical connection port.
2. The method as claimed in claim 1, wherein the obtaining of the first bitmap data of the detected picture specifically includes:
and removing the file header and the image parameters of the detected image data according to a preset data transmission protocol.
3. The MIPI high-speed signal generating method compatible with multiple data formats, according to the first control instruction, characterized in that the second bitmap data of the first bitmap data converted into the target format is replaced by:
and adding a control signal into the first bitmap data according to a first control instruction, and converting the first bitmap data added with the data into second bitmap data in a specified format, wherein the control signal comprises a character superposition function signal and a data movement function signal.
4. The method for generating the MIPI high-speed signal compatible with the plurality of data formats, according to the first control command, wherein the converting the first bitmap data into the second bitmap data of the target format comprises: and starting a corresponding format conversion module according to a target format contained in the first control instruction, wherein the target format comprises an ycbcr format, an spr format and a custom format.
5. The method for generating the MIPI high-speed signal compatible with the multiple data formats, according to claim 1 or 2, before sending the fourth graph data to the corresponding MIPI physical connection port, further comprising: and acquiring control parameter data to generate a fourth control instruction, wherein the fourth control instruction is a lane number control signal, the fourth map data is spread on each lane according to the MIPI protocol requirement according to the lane number control signal, and the corresponding lane data is sent to the corresponding MIPI physical connection port.
6. A MIPI high-speed signal generating system compatible with a plurality of data formats, which comprises a data processing module, a cache module and a control module,
the control module is used for acquiring control parameter data to generate a first control instruction, a second control instruction and a third control instruction;
the data processing module acquires first bitmap data of a detection picture and stores the first bitmap data in a cache module, wherein the first bitmap data is RGB (red, green and blue) data of an original detection picture, and the first bitmap data is converted into second bitmap data in a target format according to the first control instruction; recombining the second bitmap data into a bit width with a preset size according to the second control instruction to obtain third bitmap data; and adding a data packet header and a data packet trailer in the third bitmap data according to the third control instruction to obtain fourth bitmap data, wherein the data packet header comprises format information corresponding to a target format, and the data packet trailer comprises MIPI high-speed signal communication protocol data, and the fourth bitmap data is sent to a corresponding MIPI physical connection port.
7. The MIPI high-speed signal generating system compatible with multiple data formats, as recited in claim 6, wherein the acquiring the first bitmap data of the detected picture specifically comprises:
and removing the file header and the image parameters of the detected image data according to a preset data transmission protocol.
8. The MIPI high-speed signal generating system compatible with multiple data formats, according to the first control instruction, characterized in that the second bitmap data for converting the first bitmap data into the target format is replaced by:
and adding a control signal into the first bitmap data according to a first control instruction, and converting the first bitmap data added with the data into second bitmap data in a specified format, wherein the control signal comprises a character superposition function signal and a data movement function signal.
9. The MIPI high-speed signal generating system compatible with multiple data formats, according to the first control instruction, characterized in that the converting the first bitmap data into the second bitmap data of the target format comprises: and starting a corresponding format conversion module according to a target format contained in the first control instruction, wherein the target format comprises an ycbcr format, an spr format and a custom format.
10. The MIPI high-speed signal generating system compatible with multiple data formats, as claimed in claim 6 or 7, wherein before sending the fourth graph data to the corresponding MIPI physical connection port, further comprising: and acquiring control parameter data to generate a fourth control instruction, wherein the fourth control instruction is a lane number control signal, the fourth map data is spread on each lane according to the MIPI protocol requirement according to the lane number control signal, and the corresponding lane data is sent to the corresponding MIPI physical connection port.
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| CN104809996A (en) * | 2015-04-30 | 2015-07-29 | 武汉精测电子技术股份有限公司 | Method and device for achieving data signals of various LANE numbers of MIPI (mobile industry processor interface) based on FPGA (field programmable gate array) |
| CN208400468U (en) * | 2018-07-27 | 2019-01-18 | 广东高云半导体科技股份有限公司 | A kind of miniature display system based on mobile industry processor interface |
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