We have design a board based on ADV7619 to receive HDMI. For loop out propose, we put a hdmi switch TMDS442(TI product) between hdmi input connector and adv7619.
We have used adv7619 for several project, and all are working well. But in this design , the io register 0x6A read back is 0x50 , show only the PLL can lock to the input clock , but DE and VS are lost .
I have also read the tmdsfeq registers ,and the read back values are all zero.
It seems that the ADV7619 work state influenced by TMDS442 , can anyone tell me Is my guess correct? can i change some the adv7619 registers setting to match the TMDS442 output.
thanks a lot.