I have a question about ADV7482 CEC.
Although the ADV7482 has a CEC function, can I use only the CEC function with or without an HDMI input?
It was originally planned to use the HDMI port of SoC like the attached image, but since the SoC does not have the CEC function and the input side does not use the CEC function, we thought that we can use ADV7482 CEC function.
Is this possible?
If possible, please let me know the points.
After initial device setup, can you use CEC functions as usual?
Also our customer want to know this in few days.
So if you can answer to this question ASAP, it would help us so much!
Can anybody help?Best regards
Unknowingly the above replied comment got deleted.Sorry for the inconvenience.
Your question has been forwarded to part specialist,you will get an update soon.
Thank you for your support everyday.
We need your answer till July 25(Japan time).
So this means I need your answer ASAP.
Please give your advice.
Myself and our design team took a look at this and it looks like there should be no reason that this wouldn't work. The CEC controller is dependent on the TVDD, CVDD and DVDD power supplies being on, and that there is a valid input form the XTAL, but it is not dependent on any of the inputs from the HDMI Rx (5V HPD for example), so we cannot see any reason why it shouldn't work.
This use case was not evaluated in any way by ADI, so it will be up to the customer to perform a full evaluation on this feature should they wish to use it.
Thank you for your reply.