[Arm-netbook] ULP-COM

[jm]

On Thu, 2012-11-15 at 12:47 -0500, luke.leighton wrote:
> On 11/15/12, jm <joem at martindale-electric.co.uk> wrote:
> 
> > Hi Luke,
> >
> > The way I saw it was that SoMs are just EOMAs without a metal case :-)
> 
>  oo no it's definitely not. SoMs are "kitchen sinks" with no
> user-facing interfaces (like you suggested about SDcard).  with EOMA
> what i did was go "ok, compromise.  use 'bus' interfaces and then
> require people to use them, put down generic components - USB, I2C
> etc".  want audio as I2S or AC97? tough - find a USB-based solution.
> want RS232? tough - find a USB-based or I2C-based solution.
> 
>  surprisingly this hasn't turned out to be as bad as it sounds... *if*
> you get smart and use an Embedded Controller on the I/O Board.
> but.... people who've been on this list for a while have heard me go
> on about that quite a lot already so i'll not do it again :)
> 
> > The guys at cubieboard http://www.cubieboard.org have published their
> > circuit
> > http://dl.cubieboard.org/hardware/cubieboard_schematic_2012-08-08.pdf
> > (but I only see it yesterday) and this is cue for me to go copy all the
> > relevant bits asap to get a SoM built and then share asap for you
> > to build in lightening quick time the EOMA! :-)
> 
>  cool! no - more than cool: awesome. well if you like i can get you
> some ORCAD files, i did some stuff last year, it's still relevant.  or
> if you want to use kicad, there's some schematics i put together for
> an A10 EOMA-68 card still in the git repo, same circuit (i duplicated
> it into kicad). the PCB layout is the tricky bit, i certainly can't
> handle that part otherwise i would have done so by now.
> 
>  wild.  btw, you wanna do this as an open project, free software
> licensed, GREAT, that's fine by me.

Right GPL it is then.
I'm going to put as many items as needed on to one schematic in KiCAD
and see how far I get. Everyone can get KiCAD because its free
and so work on it in their own way doing top class PCB design
if they want to join in. I make regular release announcements here.
:-)


>  l.
> 
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