> On Thu, 2004-09-16 at 08:04, Mike Hawkshaw wrote:
> > Stuart,
> >
> > Microchip do a TCP/IP stack for the 18F452, based on a development board
> > they sell.
> > I re-wrote the hardware level code to interface to a 16 bit ISA card and
it
> > worked quite well.
Then Herbet wrote:
> Very interesting. Any chance you'll release this code to the public
> domain? Thanks, TTYL

Groan.......Well, I don't really think it is anywhere near fit to publish,
to be honest. I intended to start again from scratch (at least from the bare
MC TCP/IP stack source code) and actually document what I did then release
it to the world.

What I wrote above sounds much more grand than the reality more like slight
tweeks - though I did get it to work OK. I've just been looking through the
code, and the hardware level code hasn't changed much at all. One of the
major things I did change was the way the code set the MAC address. In the
original code, it is hard coded into one of the files, but I wanted the code
to read it from the network card (it then has to be sent back to the card as
part of the initialisation). The web page it serves is hard coded - I was
intending to interface to a hard disk eventually, but ran out of time /
enthusiasm.

The card I used was a Micronet SP2020B which is NE2000 compatible and uses
the 8019AS chip if I remember correct.
As I can't really remember what I did to get it to work (I have cut out an
awfull lot of the original source code files (because  didn't need them) -
which is almost certainly against the MChip agreement - and altered the
remaining ones to some extent) I have just zipped the whole sorry mess
together and put it here (1.237 Mbyte):
http://www.spikey-mike.demon.co.uk/files/webserver.zip

There is a photo of the test lash-up here (310kbyte):
http://www.spikey-mike.demon.co.uk/files/webserver.jpg

If anyone wants to have a look, feel free - I'll leave it there for a couple
of days. I expect it to build as is, using MChip C18, but it might not, who
knows - no guarentees......

If there are any specific questions then feel free to ask.

Cheers for now......Mike.



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