Hi,
I have designed dozens of ARM platforms over the years, from MOS ARM chips
through SA-110 and SA-1100.
Why is there a queue of folks wanting an ARM platform.
Besides being mostly independent (I can work to 3AM since I do not have a
regular job where I must show up.) I own some ATE and CAD tools.
Before all the ARM Linux Community I Declare I will Design an "Open
Hardware" Linux board. I will give away the design on CD and on the web. -- 1
Catch - I need some level of agreement on what is on the board.
I would be happy to setup some fab house to build them and service
them (Service is not difficult once you get a board on ATE.)
Send my your lists, I will sort the requirements and feed back the results.
Ideas:
Ethernet: 10 and 100Mb/s
Do we want 2 ports for building routers.
RS-232
How many ports?. Leave one internal for low level
debug? Use RJ45 for connectors. Which control lead
get thrown out?
FLASH/Disk
Some apps hang on a net and can remote boot. How
much flash is required for remote boot.
Disk, does type matter (IDE vs SCSI) how much.
Suggest smaller drives with low power requirement.
Video:
SA-1100 with its video on the processor bus is
not good. 1101 is kind of a hack. Use a PCI based
video controller with its own video data bus. Flat
panels? (Flat panel connectorization is the pits.Those
backlight inverters generate about 1KV. They burn
little holes in your fingers that smell like burnt
chicken.)
DRAM (SDRAM on SA-110/21285)
How much?
Overall suggestion:
After having built up both StrongARM designs I suggest the
SA-110 with the 21285 PCI bridge. PCI makes it very easy to
ad ethernet, USB and various other IO devices. Software
drivers are easier to port. The SDRAM interface on the 21285
is fast.
I think the right platform could do a lot for Third World Countries.
( Should be called Third World Communities since poverty is not
bounded by GNP.)
Bob Kondner
Mitch Davis wrote:
> Ian Molton wrote:
> >
> > I want to build an ARM based system capable of running Linux.
>
> Join the queue.
>
> > The one thing I cant get hold of /anywhere/ in any form is detailed
> > specifications on the SA1100 and friends (incl. the 1101), including
> > pinout, dimensions, example circuits, etc.
> >
> > Can anyone help?
>
> Try this:
>
> http://www.cse.unsw.edu.au/~pleb/minipleb.html
>
> Regards,
>
> Mitch.
> --
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