Hi - I am designing this circuit board at the moment, through contact
with Aleph1. It will probably be based on a couple of Maxim regulators,
as on the Balloon itsself, and a Maxim LED backlight drive.
I haven't got a prototype to play with yet, but when I do - I'll attempt
to get the kernel framebuffer console to work on it.
I haven't looked at the kernel side of things yet, and am no kernel
expert, so don't ask anything too technical of me in this regard.
Peter Clifton
> supply stage is pretty flexible, too. For something like the
> ACX705AKM-7 you probably want to build a tiny PCB with a
> couple of LDO voltage regulators and the appropriate conectors,
> but that can easily be single-sided and ultra-cheap. (In fact, I'm
> sort of expecting such a board to come out of Aeph-1 soon, since
> they (and I ) have a stash of those displays.
>
> Setting up the registers for a new LCD isn't particularly onerous.
> You might find yourself wanting some 'scope-time, just to check
> that it's all working like you'd expect.
>
> (Note that, if you're using the high LCD data pins, (on J2) you'll
> lose the GPIOs if you're planning to use them for switches or the
> like. I know that Nick / TCL use some of the GPIOs to drive LEDS
> to indicate OS power states. Siezing those pins back for the LCD
> shouldn't (I hope) cause problems, but bear it in mind).
>
> I'm not the right person to answer the display software questions -
> I hope someone else can step in (however, if it works on the ipaq,
> it'll be possible on Balloon, too, since the hardware's pretty similar
> - there's only so many ways you can skin a SA1110-based cat...)
>
>
> Steve
>
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