[Arm-netbook] EOMA68 switch / NAS

luke.leighton luke.leighton at gmail.com
Thu Jul 25 00:29:00 BST 2013


On Wed, Jul 24, 2013 at 11:41 PM, luke.leighton <luke.leighton at gmail.com> wrote:
> http://lists.en.qi-hardware.com/pipermail/discussion/2010-February/002058.html
>
> ok grabbed the memory IC from the qt-avt2 (successor to the ben
> nanonote).  that'll do :)

 right, that's wired up in the memory schematic.  scale's a bit odd,
the guys doing the qi_avt2 use 1/2 the grid size from the kicad
default (whoops) but hey.

btw joe for now just do "git clone http://git.hands.com/eoma.git" we
can get you added to the repo later with that ssh key.

need to find an SPI flash IC (there will be one kicking around somewhere).

this really shouldn't take long.  it's not like there's many parts!
4-port hub's needed.

argh what to do about wiring these two (EOMA68 and RTL8196) together?
what the heck is MDC/MDIO?
http://en.wikipedia.org/wiki/Management_Data_Input/Output
ah.  right.  that'll be fun.  GPIO bit-banging at... well... oh whew,
page 14 of the datasheet says it'll do from DC to 25mhz on the MDC
(clock) so GPIO bit-banging for bootstrapping would be absolutely
fine, MCD is an input.

so... MDC/MDIO to GPIO (bit-banging), bit of mode-switching (p14
again) to select between boot from MDIO or boot from SPI flash...

one ethernet connected to the EOMA68 ethernet...

how the heck do you connect USB Hosts back-to-back???

l.



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