7611 enable TMDS without freerun mode

We're using the 7611 and 7622 as a repeater product.

I got into a situation where the 7611 and 7622 are both happy with repeater HDCP . That meant we got into 3rd part of authentication OK, I can see the Ri/Ri' checking fine and no error.

However the 7611 even though it is happy with HDCP, sometimes there are NO video coming out of the 7611 . I am guessing it has something to do with the RX freerun state mess up.  I don't understand the freerun stuff.

What I like to do is enable video to come through after we get to 3rd part of HDCP authentication successfully with freerun disable.  I program the VIC, checking to see HPD is raised,  enable TMDS termination etc.  I tried to do it  but nothing seem to work.

Do you have a script that enable 7611 to allow video to coming of it and give to me ?  I don't need anything with HDCP as it already working for me.

Thanks

Huyen

Jupiter System, Inc

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  • I am just adding system clarification to this question.  Customer's system is a modular display wall, with each module having the signal flow:  ADV7611 Rx (handling/decrypting HDCP) --> processor block that drives local panel and provides throughput HDMI Tx out --> ADV7622 TRx (with Tx side handling/encrypting HDCP).  Hence, the HDCP Repeater system is formed between ADV7611 and the Tx side of ADV7622.

    ~Brian

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  • I am just adding system clarification to this question.  Customer's system is a modular display wall, with each module having the signal flow:  ADV7611 Rx (handling/decrypting HDCP) --> processor block that drives local panel and provides throughput HDMI Tx out --> ADV7622 TRx (with Tx side handling/encrypting HDCP).  Hence, the HDCP Repeater system is formed between ADV7611 and the Tx side of ADV7622.

    ~Brian

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