FPGA-based method for realizing video and command functions of MIPI signal and apparatus thereof

Abstract

The invention discloses an FPGA-based method for realizing video and command functions of an MIPI signal and an apparatus thereof. According to the method, on the basis of an MIPI DIS protocol and a DCS protocol, the MIPI video data flow function and command function and signals can be realized simultaneously; and transmission to an MIP module group is also realized based on an HSDT transmission mode and an LPDT transmission mode that are regulated by the MIPI DSO protocol. In addition, the apparatus consists of an MIPI control module, an RGB conversion module, a video synchronization module, a video blanking control module, a video data module, a video cache module, a command data module, a command cache module, an MIPI package allocation module, an HS transmission module, an HS signal generation module, an LPDT cache module, an LPDT transmission module, and an MIPI signal output module. Therefore, video and command display modes of MIPI signals are realized by in one FPGA chip according to the MIPI DIS 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...

AI Technical Summary

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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