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Method and device for realizing video and command functions of mipi signal based on fpga

A function and signal technology, applied in the field of display and testing of MIPI liquid crystal modules, can solve the problems of complex detection scheme, high cost, low reliability, etc., and achieve reliable signal transmission without errors, easy operation, stable and reliable operation. Effect

Active Publication Date: 2017-12-05
WUHAN JINGCE ELECTRONICS GRP CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

However, in the debugging and testing process of module production, only a few image signal source devices can provide the signals of these two display modes at the same time through an external bridge chip, which leads to complex technology, high cost, troublesome operation and low reliability of the detection scheme. Shortcomings

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  • Method and device for realizing video and command functions of mipi signal based on fpga
  • Method and device for realizing video and command functions of mipi signal based on fpga
  • Method and device for realizing video and command functions of mipi signal based on fpga

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Embodiment Construction

[0056] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0057] like figure 1 As shown, the device provided by the present invention to realize VIDEO and COMMAND functions of MIPI signals based on FPGA includes MIPI control module 1, RGB conversion module 2, VIDEO synchronization module 3, VIDEO blanking control module 4, VIDEO data module 5, VIDEO Cache module 6, COMMAND data module 7, COMMAND cache module 8, MIPI packet allocation module 9, HS transmission module 10, HS signal generation module 11, LPDT cache module 12, LPDT transmission module 13 and MIPI signal output module 14.

[0058] MIPI control module 1 is respectively connected with RGB conversion module 2, VIDEO synchronization module 3, VIDEO blanking control module 4, MIPI packet distribution module 9, HS transmission module 10, HS signal generation module 11 and MIPI signal output module 14, RGB conversion Module 2 is connec...

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Abstract

The invention discloses a method and device for realizing the VIDEO and COMMAND functions of MIPI signals based on FPGA. According to the MIPI DSI protocol and the DCS protocol, the method can simultaneously realize the MIPI VIDEO video data stream function and the COMMAND function and signals, and through the MIPI DSI protocol The HSDT transmission mode and LPDT transmission mode specified in are transmitted to the MIPI module. Its device includes MIPI control module, RGB conversion module, VIDEO synchronization module, VIDEO blanking control module, VIDEO data module, VIDEO buffer module, COMMAND data module, COMMAND buffer module, MIPI packet distribution module, HS transmission module, HS signal generation Module, LPDT buffer module, LPDT transmission module and MIPI signal output module, realize VIDEO and COMMAND display mode of MIPI signal in one FPGA chip according to MIPI DCS protocol.

Description

technical field [0001] The invention relates to the field of display and testing of MIPI liquid crystal modules, in particular to a method and device for realizing VIDEO and COMMAND functions of MIPI signals based on FPGA. Background technique [0002] There are two display methods for MIPI signals and their modules, one is that the video signal is sent to the module for display in the form of continuous data stream, that is, the VIDEO method, and the other is that the video signal is sent to the module in the form of register commands with video data Group display, that is, COMMAND mode. [0003] The VIDEO mode is generally used for video display in most occasions, especially in dynamic picture display. The MIPI signal of this mode is generally transmitted to the module in the HS state with the characteristic of differential signal data flow. The COMMAND mode is generally used to display static screens, or for module debugging and testing occasions. This mode can be transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/01G09G3/00
Inventor 彭骞朱亚凡欧昌东许恩郑增强邓标华沈亚非陈凯
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD
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