Re: WLAN on eCos (HW/SW design)

[Weqaar Janjua <weqaar at yahoo dot com>]

First of all I'll answer your questions:

> What is it that made you choose eCos? 

*)I have had previous experience of working on Linux
so this semester I wanted to try a different OS;
diversity!. 
*)Also I read eCos documentation and I was severely
impressed by its configurable nature, I became
interested in designing boards that eCos could be
ported on, with lesser effort.
*)wanted to work on OS porting!. 
*)I want to write an IP stack for eCos; impressed by
LWIP(www.sics.se/~adam/lwip). Its just that I want to
try different stuff on eCos.

> If eCos was chosen by your professor, what is it
> that made you choose the PCM-5860?

*)I had a choice of OS'es so I chose eCos. I bought
this board an year ago for some embedded course
project; I didn't even know what eCos is at that
point; was a junior then.

Theres are some nice products:
*)WiPort by Lantronix.
*)DPACs Airborne, http://www.dpactech.com/30B23101.asp

that I could use but my point is not just to get the
thing running!; to learn how to make my own!

Since at this point nobody came up with a 802.11
solution for eCos(to my knowledge and research), so I
have an opportunity to come up with something new.

As I see the problem, I think a ethernet(802.3) to
802.11b bridge is required(since/till eCos does not
have a WLAN package available to it) -> a daughter
board with a MCU that runs on its own ip stack, say
uClinux with linux-WLAN; sure its a lot of work but I
have two semesters time, till I graduate!

Also, PCM-5850 does not have onboard USB; ofcourse
something external could be used.

Thanks for your time and help,
Weqaar Janjua

--- "Lewin A.R.W. Edwards" <larwe@larwe.com> wrote:

> On Sun, 2004-10-31 at 18:01, Weqaar Janjua wrote:
> > I have a semester project on eCos and the PCM-5860
> is
> > the only board I got! I'm also taking an
> individual
> > research study next semester in which I plan to
> use
> > gumstix(www.gumstix.com) board with wireless
> > extensions, gumstix does not provide an onboard
> > 802.11x interface, just bluetooth, so I was
> wondering
> > if I could use the same daughter board, that I
> plan to
> > design for my current SBC, with gumstix; and use
> eCos
> 
> If you intend to add WLAN to a non-PC platform, the
> easiest route to
> take is to use a CompactFlash or PCMCIA (not
> CardBus) card. Problem is,
> it's kind of difficult to add either of these to a
> ready-built PC (yes,
> I know it's possible, but there are software and
> hardware layers that
> you just don't want to be bothered traversing - they
> make it MORE
> effort, not less, to add WLAN support).
> 
> The gumstix board was specifically designed with
> Linux in mind. Again,
> it's considerably "more computer than you need" for
> an eCos application.
> Not that you can't run eCos on it, of course, but
> your life would be
> made a lot easier if you just ran Linux on the
> PCM-5860 and then Linux
> on the gumstix board and ported your app over. On
> the Advantech board,
> you could use an off-the-shelf WLAN module on the
> USB interface.
> 
> I repeat the question: What is it that made you
> choose eCos? If eCos was
> chosen by your professor, what is it that made you
> choose the PCM-5860?
> 
> 
> 



		
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