AnsweredAssumed Answered

adv7619 when input small size video  it is unsatble

Question asked by jia.dc on Mar 22, 2014
Latest reply on Apr 2, 2014 by GuenterL


I use adv7619 as HDMI receiver, in our design it should support much video size (such as 1920x1080 1360x768 1280x720 800x600 720x480 640x480).

Now the large size (1920x1080 1360x768 1280x720)work well and stable.But the small size video(800x600 720x480 640x480) is unstable.

I read the register of adv7619 to check the video size ,when input  large size video the size detect is correct.But when input small size video the detect size is unstable .eg.input video is 800x600 ,then read the size from adv7619's register it will be 800x1 0r 800x100 or other size ,some time it will correct 800x600.

The config script is ADV7619-VER.1.4c.txt which download from the support file page ,I test all the config in the file .

By the was the board is our customer board .

Dose has same Special configuration when input small size video ,if has tell me please.

by the way in the script 98 FF 80 ; I2C reset was delete by me ,because if I write this script the adv7619 device will be dead .