AnsweredAssumed Answered

ADV7610/7612 With Amazon Fire TV Stick

Question asked by michaeleguo on Aug 13, 2015
Latest reply on May 7, 2018 by reshmi

We have a popular solution that is using ADV7610/12 as HDMI input, recently facing HDCP 1.x issue with Amazon Fire TV. I tried on our EVAL-ADV7612-7511 board and can easily reproduce the issue by following steps:

 

1. power-on Fire TV and plugged into the EVAL board input port_A

2. power-on EVAL board and wait it to initialize

3. I can observed DDC activity between FireTV and ADV7612 using a Quantum Data 980 in pass-through mode that after reading back BKSV ok, writing AKSV, An, FireTV will keep reading Ri=0000 and entered a loop of this (Read BKSV, Write AKSV, An, read Ri), now even I unplug FireTV and plug-in an OK source like a BD player that previous worked with EVAL board will also with ends up with same loop. I read back Ri value using AVES software, it is also all zero.

 

If I plug the Fire TV later after EVAL board is powered up and stable, this problem won't happen

 

Thanks in advance

 

-Guo Yi

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