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ADV7188 Brightness & Contras Adjustment

Question asked by antenci on Jun 10, 2015
Latest reply on Jul 20, 2015 by PaulS

Hello people,


i have a problem with ADV7188.

Normally i use it with no problem but now i have something new, live brightness - contrast adjustment.

When i put contrast change command inside the init sequence image output becomes very bad. artifacts..

when i put it at the end, image output is good.

when i put brightness control near that command, again artifacts occur.

What is the correct way/sequence for live brightness/contrast adjustment.

do we need a reset signal at the beginning?

do we have to send commands in an order?

do we need any delay between them?

i need your help.


Thanks and Best Regards..