Newsgroups: sci.electronics.design
Subject: Re: TCP/IP and microcontrollers?
References: <[email protected]>
	<[email protected]>
"Olin Lathrop"  writes:
 
> Wayne Burnett wrote in message <[email protected]>...
> >I am interested in investigating the possibility of interfacing a
> >microcontroller to a TCP/IP network.
> >If anyone has any comments or suggestions as to where I can begin getting
> >info (i.e. books, sites or chips) , please let me know.

1998 Embedded Internet Workshop Proceedings at
http://www.circellar.com/eiw_proc/proceedings.htm
might be a good start to get information on this subject.

Circuit Cellar INK (http://www.circellar.com/) and Dr Dobb's Journal
(http://www.ddj.com/) ate the magazines worth to check on this subject.
 
> You need to get some software referred to as a TCP/IP network protocol
> stack, or just "TCP/IP stack".  These are too complicated for small micros.
> I recently did something like this but the embedded processor was an i386.

Full TCP/IP stack is definately too complicated for small microcontrollers.
The complicated part is the TCP part. If you just need the IP and some
simpler protocols like PING and UDP running on top of I, then they
are within reach of ven quite simple microcontrollers like 68HC11
and PICs. The proofs of that is are the internet server implemented using
the 8-pin PIC12C672 microcontroller as briefly described at
http://www.circuitcellar.com/design98/98PIC12.htm and
Katix mini-IP for 68HC11 (http://www.funet.fi/~kate/mini-ip.htm
and http://www.funet.fi/~kate/katix.html).

-- 
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web pages at http://www.hut.fi/Misc/Electronics/