Hello everyone,

I would like to interface a TFT to my at91sam9xe development board. I've had a previous experience with a small LCD (320x240) that I connected to the ATNGW100 kit. I added the framebuffer driver in the kernel and it worked. I even got it to play videos with mplayer. The problem was that it was very slow, which was probably due to the memory limitations of the NGW100 board and the fact that the LCD did not have an integrated controller and the processor was too busy doing all the refresh work.
I had recently bought this [1] LCD which sports an integrated controller. Things look really easy with the interfacing, they even show code examples in the datasheet, but I could not find a pre-existing driver for it... something like a framebuffer. Does anyone know if such a thing exists?

Thank you,
Dan

[1] http://www.beck-oled-lcd-tft-display.de/display-datenblatt/typ/ampire/AM-320240NTMQW-TW4H%28R%29.pdf

Well, since the framebuffer is INSIDE the display, you can't use any framebuffer driver which requires the framebuffer to be in the system memory.

It is also unlikely that with such a display you can achieve any good frame update rate.

Reinhard

I don't intend to play movies on it, just menus, windows and some animations at most, so I don't think I'll be needing a high refresh rate.
Thanks for the reply...guess I'll start bitbanging myself a driver.

You can, of course, have a "framebuffer" in system RAM and copy that periodically to the display. Depending on the speed you can achieve it might be helpful to have a mirror of what is in the display and to transfer only differences to the display.

Hi,

AT91SAM9G20 + ILI9325 TFT LCD can do anything.
Pls check out my video player demo here

http://www.youtube.com/watchv=gWS0OmRQ1 ... r_embedded

What about larger displays? 640x480 to 1024x768 for example?

So ,please give me source of your driver and help me for using a lcd with ili9325 driver in linux for GUI.