Searching \ for '[PIC]: Ethernet connectivity' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/devices.htm?key=pic
Search entire site for: 'Ethernet connectivity'.

Exact match. Not showing close matches.
PICList Thread
'[PIC]: Ethernet connectivity'
2000\10\23@081214 by OlePetter Roenningen

picon face
part 1 608 bytes content-type:text/plain; charset=us-ascii (decoded 7bit)

Hello all

I am considering to make a temperature probe using a PIC microcrontroller of some sort. This probe should be able to 'speak' SNMP, both GET and SET.. I have seen a few products claiming to add TCP/IP support to uC's, but most of them uses RS232 to a modem or something else. What I'd really like is a device with ethernet, capable of getting av IP via DHCP, and serve SNMP request. Anyone ever done this, or have links to something even remotely similar?

I guess it would neet to support 802.2, ARP, DHCP, IP, UDP, SNMP and possibly DNS.

Thank you!
Ole Petter

part 2 107 bytes
--
http://www.piclist.com hint: To leave the PICList
spam_OUTpiclist-unsubscribe-requestTakeThisOuTspammitvma.mit.edu




2000\10\23@082044 by Bob Ammerman

picon face
Oh boy, here we go again...

Check out the PIC list archives, you'll find many threads relating to this.

SNMP and DNS have, if I recall correctly, not been discussed.

One piece of good news: you don't need TCP, which is probably the most
difficult piece of the puzzle.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)


{Original Message removed}

2000\10\23@084123 by David Kott

flavicon
face
> Hello all
>
> I am considering to make a temperature probe using a PIC microcrontroller
of some sort. This probe should be able to 'speak' SNMP, both GET and SET..
I have seen a few products claiming to add TCP/IP support to uC's, but most
of them uses RS232 to a modem or something else. What I'd really like is a
device with ethernet, capable of getting av IP via DHCP, and serve SNMP
request. Anyone ever done this, or have links to something even remotely
similar?
>
> I guess it would neet to support 802.2, ARP, DHCP, IP, UDP, SNMP and
possibly DNS.
>

Check the PICList archives.  Ethernet connectivity periodically comes up.
Lately, it's been about once a week.

http://www.embeddedethernet.com should get you started.

-d

--
http://www.piclist.com hint: To leave the PICList
.....piclist-unsubscribe-requestKILLspamspam@spam@mitvma.mit.edu




2000\10\23@113131 by Byron A Jeff

face picon face
>
> Hello all
>
> I am considering to make a temperature probe using a PIC microcrontroller of
> some sort. This probe should be able to 'speak' SNMP, both GET and SET.. I
> have seen a few products claiming to add TCP/IP support to uC's, but most of
> them uses RS232 to a modem or something else. What I'd really like is a
> device with ethernet, capable of getting av IP via DHCP, and serve SNMP
> request. Anyone ever done this, or have links to something even remotely
> similar?
>
> I guess it would neet to support 802.2, ARP, DHCP, IP, UDP, SNMP and
> possibly DNS.
>

Frankly ethernet just isn't a real convenient medium in terms of board space,
pin space, ram required, or processor capacity. All the protocols you
describe are perfectly capable of running on multidrop serial requiring only
an 8 pin interface chip and a serial interface to hook up. I currently have
two of my students working on a multidrop RS485 network using UDP/SLIP as
the transport protocol. We haven't yet tested if it's possible to map multiple
IP's onto a single SLIP interface yet though. Our gateway is a standard
Linux box.

However if you really want ethernet let me throw out three possible
suggestions for physical connectivity. Software/Protocol stacks you'll have
to figure out on your own:

1) Parallel port ethernet. A device such as a D-Link 620. They can be had for
relatively cheap, and almost gurantee to have a 4 pin parallel interface
for communication requiring only 9 or 10 pins to interface to the PIC. One
suggestion is to make sure to pick up a device that has a Linux driver because
then you can use the Linux kernel source code to derive the communications
protocol.

2) The RealTek 8019 chipset. This particular chipset has a real simple 8 bit
memory mapped interface mode and contains the buffer RAM required to buffer
the packets. Problem is that the part is a QTFP surface mount and so will
require some skill to actually interface with your project.

3) Use a ISA ethernet card. Most of the existing Ethernet interface projects
take this route. There is at least one published article in CircuitCellar
INK that describes a 8051 type uC interfaced to a NE2000 card.

But it's still my contention that you'll end up spending a significant
amount of time and energy getting the physical interface working no matter
which route you take. And none of the proposed solutions above invites a
small physical footprint with the smallest footprint (#2) being the most
difficult to achieve. Both of the others will occupy at least 10 in^2.

So let me offer as a final suggestion to work out your protocol stacks using
a serial interface and SLIP, then tackle the ethernet issue once the board's
software is stable and tested. Then you won't get caught up in the testing
issue of trying to determine if it's the driver interface code, or the
protocol interface code that's causing the system not to work.

Good Luck.

BAJ

--
http://www.piclist.com hint: To leave the PICList
piclist-unsubscribe-requestspamKILLspammitvma.mit.edu




2000\10\23@134150 by Andy Howard

picon face
have a look at http://www.sena.com. I think that does most of what you want.



----- Original Message -----
From: "OlePetter Roenningen" <.....oleprKILLspamspam.....ONLINE.NO>
To: <EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU>
Sent: Monday, October 23, 2000 1:10 PM
Subject: [PIC]: Ethernet connectivity


> Hello all
>
> I am considering to make a temperature probe using a PIC microcrontroller
of some sort. This probe should be able to 'speak' SNMP, both GET and SET..
I have seen a few products claiming to add TCP/IP support to uC's, but most
of them uses RS232 to a modem or something else. What I'd really like is a
device with ethernet, capable of getting av IP via DHCP, and serve SNMP
request. Anyone ever done this, or have links to something even remotely
similar?
>
> I guess it would neet to support 802.2, ARP, DHCP, IP, UDP, SNMP and
possibly DNS.
>
> Thank you!
> Ole Petter

--
http://www.piclist.com hint: To leave the PICList
piclist-unsubscribe-requestspamspam_OUTmitvma.mit.edu




2000\10\23@140515 by Andy Howard

picon face
--- Original Message -----
From: "OlePetter Roenningen" <@spam@oleprKILLspamspamONLINE.NO>
To: <KILLspamPICLISTKILLspamspamMITVMA.MIT.EDU>
Sent: Monday, October 23, 2000 1:10 PM
Subject: [PIC]: Ethernet connectivity


> Hello all
>
> I am considering to make a temperature probe using a PIC microcrontroller
of some sort. This probe should be able to 'speak' SNMP, both GET and SET..
I have seen a few products claiming to add TCP/IP support to uC's, but most
of them uses RS232 to a modem or something else. What I'd really like is a
device with ethernet, capable of getting av IP via DHCP, and serve SNMP
request. Anyone ever done this, or have links to something even remotely
similar?
>
> I guess it would neet to support 802.2, ARP, DHCP, IP, UDP, SNMP and
>possibly DNS.




Have a look at the HelloDevice from http://www.sena.com. I think that does most of
what you want in a very small footprint. Not the cheapest answer - but it is
a ready-made solution with very little coding required.

There's also a new Scenix Virtual Peripheral
http://www.scenix.com/virtual/index.html which is Ethernet connected, though
I don't know anything else about that one yet. They sell an Ethernet
development kit for 99USD.
If anyone has any experience with/comments on this I'd be very interested to
hear.

iReady have just announced an Ethernet version of their Internet Tuner
technology as used in Seiko's iChip, but silicon isn't expected until Q1
next year.

http://www.embeddedethernet.com is a simple ethernet interface which might give you
a few ideas. I think you'd need to write quite a bit of code yourself if you
want an all-singing version though.

I don't have the URL but both Circuit Cellar and Nuts'n'Volts magazines have
published projects based on bodging an ISA NIC, I think using an Atmel
processor, but the principle holds good. Again you'd end up writing a lot of
protocol yourself.

HP have the cute-but-overpriced BFoot module at 350USD in small quantities
http://www.hpie.com/

If you want to roll your own then there's the Crystal CS8900A device
http://www.cirrus.com/design/products/overview/index.cfm?ProductID=46  and
the Realtek RTL8019AS both of which are relatively easy to interface to a
microcontroller.


Hope some of this helps. As you might have guessed, I've been looking into
an Ethernet solution for one of my products recently.


Cheers,

Andy.

--
http://www.piclist.com hint: To leave the PICList
RemoveMEpiclist-unsubscribe-requestTakeThisOuTspammitvma.mit.edu




2000\10\23@160132 by Randy Glenn

picon face
Get the October 2000 Circuit Cellar. PIC webserver using an ISA NIC.

-Randy Glenn

Randy_Glenn-at-tvo.org - PICxpert-at-home.com
PICxpert-at-yahoo.com - PICxpert-at-picxpert.com
           http://www.picxpert.com/

{Original Message removed}

2000\10\23@165334 by 859-1?Q?Ole_Petter_R=F8nningen?=

picon face
Thanks!

JUST what I needed. Maybe this link should be added to the PICLIST archive?
(couldn't find it when I searched for it)

Ole Petter

{Original Message removed}

2000\10\23@212514 by Dan Michaels

flavicon
face
At 10:47 PM 10/23/2000 +0200, you wrote:
>Thanks!
>
>JUST what I needed. Maybe this link should be added to the PICLIST archive?
>(couldn't find it when I searched for it)
>
>Ole Petter
>


Uh, oh - another shot across the PLA bow. I am giving them a run
for the money - already got the link up on my webpage, in the
"Embedded Internet" section. Cute little pcb.

http://www.users.qwest.net/~oricom/emerge2.htm

Also, have lots of links on small RF devices and modems
[which is usually the next question], section on RF,...:

http://www.users.qwest.net/~oricom/teklink2.htm

best regards,
- Dan Michaels
Oricom Technologies
===================


>{Original Message removed}

More... (looser matching)
- Last day of these posts
- In 2000 , 2001 only
- Today
- New search...