Hello,
is it possible configure the Lcd interface of AM335x to drive a TFT
Lcd wwith a S6D0129 controller onboard ?
Marc
There is one built into the AM335x. Why would you need to add an external one?
Gerald
You are right,
but it's because I already have a commercial product (handheld) which
use this Lcd; many of them in house.
I should develop a core upgrade of this device, without changes in
plastic case and Lcd.
I'd like upgrade the core to AM335x with Android, using beaglebone as
reference...
Marc
I see. I am not familiar with that device so I can’t really say if it will work or not. If you will send me a datasheet, I will take a look.
Gerald
Thank you Gerald,
here is the datasheet of S6D0129 controller and LCD:
www.newdlab.com/download/S6D0129.pdf
www.newdlab.com/download/UMNH-7760MD-T.pdf
The controller itself seems have a direct Vsync or Rgb interface, but
unfortunately the Lcd module
do not expose these signals on its 40 pin connector, thus the AM335x
has to deal with the controller...
Marc
After a quick glance, it has the RGB interface with all the right signals from a HW perspective, so I don’t see an issue driving a display with this device on it. This assumes of course that these are the signals brought out on your current display. You will need to write a driver for it, but it should be straight forward.
Gerald
Hi Gerald,
the URT Lcd I have, unfortunately do not expose the RGB and VSYNC
signals from the S6D0129 controller...
But reading the AM335x Tech Ref Manual, I have found that are
available two controllers onboard (!)
The Raster, for direct driving of lcd panels, and the LIDD controller
(Lcd Interface Display Driver).
This last one can be configured to drive character Lcd and graphic
TFT, configurable with
Motorola or Intel interfaces (page 1565).
Not an easy to develop solution, but at least possible 
Regards,
Marc
Too bad. I have not played with either of those othe rinterfaces, but I know that they are there.
Gerald