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PICList Thread
'EtherNet with a PIC (Was: PIC > NE2000 [OT])'
2000\05\08@131503 by David Kott

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> I've seen a project on Circuit Cellar that used a microcontroller
connected
> directly to a NE2000 card making it network-enabled, but there were
> insuffecient circuit and firmware details to build one (some of the
project
{Quote hidden}

I saw a circuit for a Crystal Semiconductor CS8900 standalone ethernet
interfaced directly to a PIC16C74.  I don't know much about the host
interface to a NE2000 NIC, but, I don't think the CS8900 is compatible.  At
least the documentation on the device said nothing about NE2000
compatibility.
If simple ethernet connectivity is what you are interested in, you may want
to look at this IC.  Basically, the CS8900 is a highly integrated single
chip10bX ethernet NIC.  Two of the very nice things about this package was
the integrated 4 K of onboard RAM, and integrated bus drivers.  You didn't
need any external RAM or much of it on your microcontroller, and only a
simple surface mount transformer and you have a NIC capable of residing on a
10b2 network.

You can get  information about the CS8900 here at
http://www.cirrus.com/ftp/pubs/8900.pdf

You may also wish to look at Ethernet Controller Technical Reference Manual
at http://www.cirrus.com/ftp/pubs/an83.pdf

The creator of this design used a PIC16C74, just because "... becuase it had
the needed 16 I/O pins and I had a few here on hand..."

The design and code he supplied generated an ICMP echo reply when pinged.
This is really pretty sophisticated and an excellent place, IMHO, to start.

The website that used to host this gentleman's pages no longer has them
available.

I serendipitously mirrored the pages before they disappeared.  The bottom of
the page listed his contact information as "Gary T. Desrosiers
spam_OUTdesrosiTakeThisOuTspampcnet.com"

He used to sell unstuffed PCB's for mounting the '8900 and support hardware
for the reasonable price of US $59.00.  I purchased one, but the project
acquired a lower priority and I wasn't able to finish debugging my proto.

-d

2000\05\08@141249 by Scott Dattalo

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On Mon, 8 May 2000, David Kott wrote:

> I serendipitously mirrored the pages before they disappeared.  The bottom of
> the page listed his contact information as "Gary T. Desrosiers
> .....desrosiKILLspamspam@spam@pcnet.com"

Gary has just move to San Francisco and should be getting his e-mail working
very shortly. I personally don't know him, but he posts occasionally to the
pilot-unix mailing list. If you want, I can notify you when I see a post from
his new address.

Scott

2000\05\08@154225 by David Kott

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> On Mon, 8 May 2000, David Kott wrote:
>
> > I serendipitously mirrored the pages before they disappeared.  The
bottom of
> > the page listed his contact information as "Gary T. Desrosiers
> > desrosispamKILLspampcnet.com"
>
> Gary has just move to San Francisco and should be getting his e-mail
working
> very shortly. I personally don't know him, but he posts occasionally to
the
> pilot-unix mailing list. If you want, I can notify you when I see a post
from
> his new address.
>
> Scott
>

I think a lot of PIClisters would benefit from Gary's projects and, like
myself, would appreciate a posting the URL to his PIC pages when he has
relocated them.

-d

2000\05\08@154842 by picxpert

picon face
You can find this project, connecting a CS8900 to a PIC, at
http://www.embeddedethernet.com , last I checked.

Also, the PicoWeb uses the RealTek 8019 chip, which seems to be in most
every cheap-o Ethernet card out there. Supply shouldn't be too much of a
problem for it.

-Randy Glenn
.....PICxpertANTISPAMKILLspamspam.....techie.com (remove ANTISPAM)
http://i.am/PICxpert

"My Finder has died of fits, chokin',
My Finder has quite ceased to be.
OS X's new Finder looks broken,
Please bring back my Finder to me!" - A concerned Mac user

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{Original Message removed}

2000\05\08@155214 by Mark Willis

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Last I checked, the Cirrus (who bought out Crystal) stocks of this nice
chip were all in Allocation, i.e. You & I can NOT get any yet...  Drat!

 Mark

David Kott wrote:
<snipped>
> I saw a circuit for a Crystal Semiconductor CS8900 standalone ethernet
> interfaced directly to a PIC16C74.  I don't know much about the host
> interface to a NE2000 NIC, but, I don't think the CS8900 is compatible.

2000\05\09@211348 by Kevin McCusker

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I have three from a sample request.  Willing to part with them.
----- Original Message -----
From: Mark Willis <mwillisspamspam_OUTFOXINTERNET.NET>
To: <@spam@PICLISTKILLspamspamMITVMA.MIT.EDU>
Sent: Monday, May 08, 2000 3:49 PM
Subject: Re: EtherNet with a PIC (Was: PIC > NE2000 [OT])


{Quote hidden}

2000\05\12@165143 by John De Villiers

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Now that there are USB network cards available, can one not use one of the
pic's with a USB port to chat to one of these USB network cards and that way
get it on the net ??

John

2000\05\12@165809 by Severson, Rob

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No. Not at all.

The USB/Network devices are USB peripherals. The USB PIC is a USB
peripheral. Two peripherals do NOT talk to each other. You need to have a
host (PC/MAC) USB device.

-Rob
http://usbsimm.home.att.net



{Quote hidden}

2000\05\18@052251 by Bond Peter_S-petbond1

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> -----Original Message-----
> From: Kevin McCusker [spamBeGonekmccuskespamBeGonespamOPTONLINE.NET]
> Sent: 10 May 2000 00:24
> To: TakeThisOuTPICLISTEraseMEspamspam_OUTMITVMA.MIT.EDU
> Subject: Re: EtherNet with a PIC (Was: PIC > NE2000 [OT])
>
>
> I have three from a sample request.  Willing to part with them.

More info, please?  One of the downsides to being a "software" engineer is
the general inability to obtain samples of hardware...  Oh well.

Ta,

Peter
--
Peter S Bond            Software Engineer
Motorola GPD, Box 108   Tel No +44 1793 565557
16 Euro Way, Blagrove   Mobile +44 7715 176026
Swindon, SN5 8YQ, UK    Fax No +44 1793 541228
RemoveMEPeter.s.BondspamTakeThisOuTmotorola.com

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