FACE module hardware design questions (LVDS, eDP and others)

sonnenfl
Posts: 10
Joined: Thu Oct 11, 2012 11:48 am

Re: FACE module hardware design questions (LVDS, eDP and oth

Post by sonnenfl »

I'm sorry, I've made a mistake and parts of my last post are no longer true.

The mistake was that I was measuring the DDC lines relative to GND which of course does not work because DDC is I²C and therefore open-collector based.
If I measure them from the 5V rail (for example) I can see that they have their 3.3V pull-up.

I've managed to get the LVDS display detected at boot by adding pull-ups to 3.3V to the DDC lines.
When I pull them down to GND or let them float the LVDS output is not activated.
This is what I needed.
It seems to only work at boot, so it is not "hot-plugging" but that's no problem for me.

What I haven't tested today is if there are actual signals on the DDC and LVDS lines but I will do that in a few days.

Thank you again for the good support!
-- Florian

gabrielh
Site Admin
Posts: 1260
Joined: Thu Jun 02, 2011 1:13 pm

Re: FACE module hardware design questions (LVDS, eDP and oth

Post by gabrielh »

Thank you for your positive feedback. Please don't hesitate to contact us.
Gabriel Heifets

Fit-PC2/3/IntensePC support.

startit_ltd
Posts: 181
Joined: Thu Jul 23, 2009 7:18 am

Re: FACE module hardware design questions (LVDS, eDP and oth

Post by startit_ltd »

Hi,
I would like to interesting about the LVDS FACE module.
Is it working?
Is it commercialy available?
Especially for Fit-PC3.
Thanks,
István

mbirger

Re: FACE module hardware design questions (LVDS, eDP and oth

Post by mbirger »

There is no LVDS Face module.
Please refer to FACE module documentation:
http://www.fit-pc.com/wiki/index.php/FA ... umentation

Post Reply

Return to “General FACE Module questions”