How can I Network using a microcontroller

I have a microcontroller and I want to make a connection with a lan
card (a pc on a lan) using TCP/IP. I think to use the lan card IC to
control the protocol, but I need to write a driver for it on my
hardware. Can anybody help me to write the driver. I am experinced
(almost) on 8051 microcontroller.

Thanks,
Omid.

On 29 Jan 2004 04:50:40 -0800, (E-Mail Removed) (Omid Ghayour)
wrote:

[Follow-up's set to: comp.protocols.tcp-ip,comp.arch.embedded]

>I have a microcontroller and I want to make a connection with a lan
>card (a pc on a lan) using TCP/IP. I think to use the lan card IC to
>control the protocol, but I need to write a driver for it on my
>hardware. Can anybody help me to write the driver. I am experinced
>(almost) on 8051 microcontroller.

Not only will you need to write the packet driver, but you'll have to
write the TCP/IP stack, too.

If you ask for "help to write the driver", then you probably need to
hire a programmer. If you have *specific* questions, ask post them to
the newsgroups.

--
Fernando Gont
e-mail: (E-Mail Removed)

[To send a personal reply, please remove the ANTISPAM tag]

On 29 Jan 2004 04:50:40 -0800, Omid Ghayour wrote:

> I have a microcontroller and I want to make a connection with a lan
> card (a pc on a lan) using TCP/IP. I think to use the lan card IC to
> control the protocol, but I need to write a driver for it on my
> hardware. Can anybody help me to write the driver. I am experinced
> (almost) on 8051 microcontroller.
>
> Thanks,
> Omid.

Rabbit makes an 8051 development board complete with 10 base-t ethernet and
includes a TCPIP stack with source - I think.

Check out Digikey

(E-Mail Removed) (Omid Ghayour) wrote in message news:<(E-Mail Removed). com>...
> I have a microcontroller and I want to make a connection with a lan
> card (a pc on a lan) using TCP/IP. I think to use the lan card IC to
> control the protocol, but I need to write a driver for it on my
> hardware. Can anybody help me to write the driver. I am experinced
> (almost) on 8051 microcontroller.


Get the book "TCP/IP Lean, 2nd Ed", by Jeremy Bentham, CMP Books.
Nice discussion of how to implement a really small TCP/IP stack. He
doesn't provide an 8051 implementation, but his C code will work on a
PIC.

On 29 Jan 2004 04:50:40 -0800, (E-Mail Removed) (Omid Ghayour)
wrote:

>I have a microcontroller and I want to make a connection with a lan
>card (a pc on a lan) using TCP/IP.

You'll need a tcp-ip stack. You might consider using embedded Linux
or uCLinux.

You can also have a look at
http://www.dunkels.com/adam/uip/


Dan

(E-Mail Removed) (Robert Wessel) wrote in message news:<(E-Mail Removed) om>...
> (E-Mail Removed) (Omid Ghayour) wrote in message news:<(E-Mail Removed). com>...
> > I have a microcontroller and I want to make a connection with a lan
> > card (a pc on a lan) using TCP/IP. I think to use the lan card IC to
> > control the protocol, but I need to write a driver for it on my
> > hardware. Can anybody help me to write the driver. I am experinced
> > (almost) on 8051 microcontroller.
>
>
> Get the book "TCP/IP Lean, 2nd Ed", by Jeremy Bentham, CMP Books.
> Nice discussion of how to implement a really small TCP/IP stack. He
> doesn't provide an 8051 implementation, but his C code will work on a
> PIC.


The PICDEM.net demo board from Microchip and TCP/IP Lean go hand in
hand. There is a also an Atmel solution that my former colleague did.
If i had to implement it, i'd probably purchase a picdem.net board and
try to reuse the code.

> You'll need a tcp-ip stack. You might consider using embedded Linux
> or uCLinux.>

or eCos.

(E-Mail Removed) (Omid Ghayour) wrote in message news:<(E-Mail Removed). com>...
> I have a microcontroller and I want to make a connection with a lan
> card (a pc on a lan) using TCP/IP. I think to use the lan card IC to
> control the protocol, but I need to write a driver for it on my
> hardware. Can anybody help me to write the driver. I am experinced
> (almost) on 8051 microcontroller.
>
> Thanks,
> Omid.

I found a one-chip solution that looks like an exact fit for what you
want. Look at www.maxim-ic.com

The DSC80C400 is an 8051-based microcontroller that has a MAC
peripheral built in the chip. It also comes with the TINI TCP/IP stack
in ROM. I don't know how to use it though, but for an 8bit chip, this
is something i'm definitely going to be looking into now.

-Mike

On Fri, 30 Jan 2004 02:25:21 +0000, Dan wrote:

> On 29 Jan 2004 04:50:40 -0800, (E-Mail Removed) (Omid Ghayour)
> wrote:
>
>>I have a microcontroller and I want to make a connection with a lan
>>card (a pc on a lan) using TCP/IP.
>
> You'll need a tcp-ip stack. You might consider using embedded Linux
> or uCLinux.
> -------snip----------

Normally, yes, you would have to but recent components like the W3100A do
much of the toil in h/w. An 8051 is severly underpowered, and
under-RAM'ed, to handle even low speed ethernet let alone multiple sockets.

-- Regards, Albert
----------------------------------------------------------------------
AM Research, Inc. The Embedded Systems Experts
http://www.amresearch.com 916.780.7623
----------------------------------------------------------------------

Omid Ghayour wrote:
> I have a microcontroller and I want to make a
> connection with a lan card (a pc on a lan) using
> TCP/IP. I think to use the lan card IC to control
> the protocol, but I need to write a driver for it
> on my hardware. Can anybody help me to write the
> driver.

This can be a very big effort, especially the TCP stack.

See http://www.edtp.com for cheap LAN prototyping cards and C code.

Google on 8051 and one of these controllers: NE2000, RTL8019AS, CS8900A,
91C111, AX88796, DM9000

Best, look at one of these turnkey solutions that translate a serial
interface to TCP:
http://www.lantronix.com/products/eds/xport/index.html
http://www.digi.com/products/embedde...iconnectme.jsp