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ADV7619 eq setting

Question asked by tmjin on Jul 15, 2018
Latest reply on Jul 20, 2018 by PoornimaSubramani

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.