Research on shunt conversion technology of multi-channel DVI video signal

In order to solve the problem of testing DVI video signal based on multi-channel high-speed avionics bus, the multi-channel DVI video signal shunt conversion technology is studied. According to the characteristics of high signal rate and many channels, a shunt conversion system is designed. The system adopts modular design such as high-speed signal full crossover, taking into account the design of signal equalization and signal pre emphasis. The function of signal shunt conversion is realized. Through the acquisition, chattering elimination and judgment of the runner switch, the corresponding registers are configured to complete the channel switching function of the test DVI port. The experimental results show that the shunt conversion and real-time detection of multi-channel high-speed DVI video signals are effectively completed without affecting the operation of the original link, which meets the design requirements.