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Device for generating spi interface graphic signal and graphic signal generator

A technology of SPI interface and graphic signal, which is applied in the input/output process of instruments, data processing, calculation, etc., and can solve problems that affect the research and development, production and detection efficiency of display module production lines, and affect the speed and time of gamma adjustment, etc. , to achieve the effect of fast drawing speed, increased burden, and improved throughput

Active Publication Date: 2022-07-01
WUHAN JINGCE ELECTRONICS GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0003] At present, the graphics signal generators supporting the SPI interface used by major display module manufacturers are all implemented by embedded CPUs. Due to the limitations of the CPU, it is impossible to achieve parallel high-speed drawing of multiple signal output channels, which affects gamma adjustment. The speed and time seriously affect the research and development, production and testing efficiency of the display module production line

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  • Device for generating spi interface graphic signal and graphic signal generator

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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] The present embodiment discloses a device for generating a graphic signal of an SPI interface, which is used to perform a dot screen test on a small-sized display module supporting the SPI interface. like figure 1 As shown, the device of this embodiment includes a PC, a Flash memory, a DDR4 memory, and an FPGA chip with a built-in CPU processor. Among them, the FPGA chip has a plurality of ...

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Abstract

The invention discloses a device for generating SPI interface graphic signals, comprising a programmable logic device for generating multi-channel graphic signals, the programmable logic device has a plurality of graphics corresponding to the multi-channel graphic signals one-to-one a signal output terminal; a data distributor is arranged in the programmable logic device, and a plurality of SPI controllers connected in one-to-one correspondence with the plurality of graphic signal output terminals; the data distributor is used to distribute the image data to the In a plurality of SPI controllers; each of the SPI controllers is used to convert the received image distribution data into the SPI protocol format. Based on the hardware logic of the programmable logic device, the invention realizes independent control of multiple graphic signal output channels and parallel plotting, which can greatly reduce the data processing amount of the CPU, improve the processing performance and efficiency of the CPU, and realize the SPI interface display module. The high-speed parallel plotting can meet the efficiency of R&D, production and inspection of SPI interface display modules.

Description

technical field [0001] The invention relates to the technical field of image signal generation, in particular to a device for generating a graphic signal of an SPI interface and a graphic signal generator. Background technique [0002] With the development and popularization of smart watches and smart bracelets, the demand for small-sized display modules based on SPI interface has surged, which has put forward new requirements for graphic signal generators supporting SPI interface. [0003] At present, the graphics signal generators supporting the SPI interface adopted by the major display module manufacturers are all implemented by embedded CPUs. Due to the limitations of the CPU, it is impossible to achieve parallel high-speed graphics for multiple signal output channels, which affects the gamma adjustment. The speed and time will seriously affect the R&D, production and testing efficiency of the display module production line. SUMMARY OF THE INVENTION [0004] Aiming a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14G06F13/42G06F13/16G06F13/40
CPCG06F3/1407G06F13/1668G06F13/4004G06F13/4282
Inventor 叶金平刘荣华罗晨阳
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD
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