I2C Chip Address 70

Hi Robert,

Good Morning.
I couldn’t find in the BBB device tree related to I2C with addresses 34 and 70.
I would like to have information about the chips, such as the name, etc.

Thank you,
David

Hi @dzhou,

Address 70 is the tda19988 hdmi framer:

Regards,

Thank you, Robert.

I thought @34 is HDMI related. Or both 34/70 are hdmi related.
We don’t not have hdmi populated. So @70 is missing. That’s ok. But @34 also missing.
I don’t know it really needed.

Thank you,
David

That’s the CEC register of the tda19988, took a while to find it, as it’s hardly used…

Regards,

Hi Robert,
Just to be sure that without both is ok if board is not populated with HDMI?

Thank you for your support.
David

You can just remove the tda19988 node from the device tree.

Regards,