TMDS1204：The output of the evaluation board could not be identified to HDMI2.1

wayne chen

Prodigy 10 points

Part Number: TMDS1204

Tool/software:

I am evaluating the board like this jumper, HDMI2.1 can not recognize, but HDMI2.0 can recognize

over 1 year ago

0 Vishesh Pithadiya over 1 year ago

TI__Guru 61846 points

Hi Wayne,

What is the length of the cable?

What board are you using?

The cable requirements between HDMI 2.0 and HDMI2.1 are different. The HDMI2.1 cable must be CAT 3.

0 wayne chen over 1 year ago in reply to Vishesh Pithadiya

Prodigy 10 points

I am using an evaluation board of TMDS120 4, with one end connected to a 2-meter cable and the other end connected to a 0.5-meter cable. The HDMI 2.1 cable can recognize 8k 60HZ normally

0 David (ASIC) Liu over 1 year ago in reply to wayne chen

TI__Guru**** 191321 points

Hi,

The evaluation board itself has two HDMI receptacles, and we will need to make sure to use a cable as short as possible to minimize the insertion and return loss from the two receptacles. The one we used is this at this link.

Are you using I2C or pin strap mode to configure TMDS1204? Can you please share your current TMDS1204 configuration either in I2C or pin strap mode?

Thanks

David

Interface

Interface forum

TMDS1204：The output of the evaluation board could not be identified to HDMI2.1