Quoting Gerald Mullin <gmullin@...>:
> I realized this display would not work with the Breakout -VX board. It
> has a bus interface with Rd and WR signals.
In fact this display _will_ work with it. Bus interface = SmartLCD and
the PXA270 is able to drive such screens (see Developer's Manual).
> I am looking for small displays that have RGB inputs that I can connect
> to L_FCLK , L_LCLK and P_CLK
>> From other posts it looks like I connect display that have HSYNC and
> VSYNC inputs
> HSYNC -> L_LCLK
> VSYNC -> L_FCLK
You'll hardly find small LCD screens that are not "smart", the smallest
I've seen so far was 2.2", whereas the smart LCDs go down to 0.95".
> It looks like it has a parallel interface? If that's brought out to
> pins, then you should be able to drive it using the Linux framebuffer.
No the Linux framebuffer (I mean in this case "pxafb") is _not_ able to
drive such screen. No support for smart LCD is present in this driver
(though the PXA is technically able to drive it with its DMA channels).
> On 8/24/07, Gerald Mullin <gmullin@...> wrote:
> I need to drive a small color LCD.
> I found the Microtips 2.2 inch LCD with HX8346 driver chip.
> This would be perfect for our application.
> Would the software driver be available for the Gumstix Verdex ?
> Gerald Mullin
You may want to have a look here:
In the case of connecting _only_ the smart LCD, that would require to
write a framebuffer driver. I wrote a sort of test driver (which does
nothing else than displaying a picture) but had not the time to write