> 08/09/2004 04:25:27, "Solutions IT WireScale"
> <info@wirescale.com> wrote:
>
> >I called 2 distributors here in the US (and Canada)
> http://www.digikey.ca &
> >http://www.future.ca to ask them about pxa270 availability. The
> first only have
> >pxa255 and the second neither of them!
>
> Yeah, but they're both pretty broad-line distributors. The silicon
> does seem to be available from the specialists.
didn't check elsewhere...
>
> >I'm very interested and ready to contribute/volunteer in the
> dev/test of balloon3.
> >Is that possible?
>
> Possibly - what's your area?
>
I have a computer engneering degree and digital systems design background using
gals and pals, eproms, ... MC programming and a little FPGA and RFID. I'll start a
master degree (DESS) in elect. eng. next year at école polytechnique de Montreal
to learn more about rapid digital systems prototyping using embedded processors
(e.g. Altera Nios) with custom or IP-cores.
I'm ready to contribute in test functional and performance behaviors as a
beginning.
> >btw, are you planning to add integrated ethernet support to
> balloon3?
>
> Tricky. I'm trying to keep Balloon3 cheaper & easier to
> manufacture than Balloon2 was. Adding chips to the board which
> not everyone wants, and which can be added at least as cheaply
> on a CF card, needs some justification. The only reason I'd fit
> Ethernet on the board would be to get Power-over-Ethernet,
> which you don't get from a CF card.
> I'm prepared to be convinced otherwise, but, for the moment, no
> built-in Ethernet...
>
> Steve
>
Your idea is pretty good, some kind of module oriented board :)))
>
>
>
> --__--__--
>
> Message: 4
> Date: Wed, 8 Sep 2004 21:57:49 +0100
> From: Wookey <wookey@aleph1.co.uk>
> To: Balloon <balloon@balloonboard.org>
> Organization: Aleph One Ltd
> Subject: [Balloon] Re: Processor update to XScale
>
> +++ Steve Wiseman [04-09-08 09:45 +0100]:
>
> > >btw, are you planning to add integrated ethernet support to
> > balloon3?
> >
> > Tricky. I'm trying to keep Balloon3 cheaper & easier to
> > manufacture than Balloon2 was. Adding chips to the board which
> > not everyone wants, and which can be added at least as cheaply
> > on a CF card, needs some justification. The only reason I'd fit
> > Ethernet on the board would be to get Power-over-Ethernet,
> > which you don't get from a CF card.
> > I'm prepared to be convinced otherwise, but, for the moment, no
> > built-in Ethernet...
>
> Having just been to a talk extolling the virtues of POE I did think 'that
> would be nice on balloon' - the only truly international standard power
> source. But I wonder how it would fit in with the already numerous power
> options. And it would probably be 2 chips - the ethernet one and the POE
> one.
>
> I do miss ethernet...but USB provides most of the same functionality.
>
> Wookey
> --
> Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679
> work: http://www.aleph1.co.uk/ play: http://www.chaos.org.uk/~wookey/
>
>
> --__--__--
>
> Message: 5
> From: "Nick Bane" <nick@cecomputing.co.uk>
> To: "Wookey" <wookey@aleph1.co.uk>,
> "Balloon" <balloon@balloonboard.org>
> Subject: RE: [Balloon] Re: Processor update to XScale
> Date: Wed, 8 Sep 2004 22:52:11 +0100
>
> > Tricky. I'm trying to keep Balloon3 cheaper & easier to=20
> > > manufacture than Balloon2 was. Adding chips to the board which=20
> > > not everyone wants, and which can be added at least as cheaply=20
> > > on a CF card, needs some justification. The only reason I'd fit=20
> > > Ethernet on the board would be to get Power-over-Ethernet,=20
> > > which you don't get from a CF card.=20
> > > I'm prepared to be convinced otherwise, but, for the moment, no=20
> > > built-in Ethernet...
> >=20
> > Having just been to a talk extolling the virtues of POE I did think =
> 'that
> > would be nice on balloon' - the only truly international standard =
> power
> > source. But I wonder how it would fit in with the already numerous =
> power
> > options. And it would probably be 2 chips - the ethernet one and the =
> POE
> > one.
> >=20
> > I do miss ethernet...but USB provides most of the same functionality.
> >=20
> And bear in mind that we have usb master on pxa270 so that we aren't =
> limited to usbnet hosts for connectivity. Doesn't help power of course.
>
> Nick
>
> > Wookey
> > --=20
>
>
>
> --__--__--
>
> Message: 6
> From: Steve Wiseman <steve@steves-house.org.uk>
> To: Balloon <balloon@balloonboard.org>
> Date: Wed, 08 Sep 2004 23:43:59 +0100
> Subject: Re: [Balloon] Re: Processor update to XScale
>
> 08/09/2004 21:57:49, Wookey <wookey@aleph1.co.uk> wrote:
>
> >Having just been to a talk extolling the virtues of POE I did think
> 'that
> >would be nice on balloon' - the only truly international standard
> power
> >source.
>
> Err, scrounging power from a USB port is also quite universal,
> certainly during development. It's one of the best things about
> USB, especially on desktop PCs - vast amounts of 5(ish) volts
> sloshing about.
>
> >But I wonder how it would fit in with the already numerous power
> >options. And it would probably be 2 chips - the ethernet one
> and the POE
> >one.
>
> It's not that much extra area, and it's possible that the PoE chip
> could be used as the general purpose high-voltage supply input,
> too. (The PoE spec allows some pretty wide tolerances on the
> voltage seen at the port). Bear in mind that Ethernet also requires
> a huge RJ45 socket (which may contain the magnetics & LEDs, but
> it's still a lot of area. There's also the question of where to put the
> connector - a perennial problem on Balloon - which side is a user
> likely to want pointing out of their case, if any?
>
> >I do miss ethernet...but USB provides most of the same
> functionality.
>
> CF-card ethernet works very nicely, both wired and wireless, so
> it's easy enough to get your fix. It's notable that neither of the
> commercial customers that I know of want / fit Ethernet except
> during development.
>
> Steve
>
>
>
>
>
>
> --__--__--
>
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