- how to design a dual port ethernet?
- Posted by zhangjian on May 12th, 2006
I want to design a system with dual ethernet port using at91rm9200,whic
Ethernet chip should i choose?How to control the Ethernet chip usin
at91rm9200? It need work at 100Mbits/s
- Posted by Cecil Hill on May 13th, 2006
"zhangjian" <zjyr8182@163.com> wrote in message
news:5oOdnZEaLKsL5_nZRVn-tA@giganews.com...
Integrate an ethernet switch with the number of ethernet interfaces
required.
You can get these from, for example, Micrel, Marvell etc.
- Posted by Ulf Samuelsson on May 13th, 2006
zhangjian wrote:
You can look at the AT912SAM9261-EK schematics which has an
external DM9000E Ethernet controller.
If you just want to forward most packets coming in on one port
to the other without any processing/filtering then a 3 port switch
from Micrel would probably do the job
--
Best Regards,
Ulf Samuelsson
ulf@a-t-m-e-l.com
This message is intended to be my own personal view and it
may or may not be shared by my employer Atmel Nordic AB
- Posted by t porter on May 14th, 2006
On Sat, 13 May 2006 09:12:32 +0200, "Ulf Samuelsson"
<ulf@a-t-m-e-l.com> wrote:
How about if I want to bring packets in one interface, process them,
and send them out the other interface?
Thanks, Tom
- Posted by Richard H. on May 14th, 2006
t porter wrote:
Maybe I'm missing something here, but...
* Two Ethernet controllers on a shared bus
* One extra MCU pin to address them uniquely
* Read from one, flip the address line, write to the other
Asix AX88796L, Davicom DM9000, SMSC 91C111, and Micrel KSZ8841 would be
suited for the job - they're the only 10/100 non-PCI controllers on the
market. Micrel offers a 2-port version with an integrated switch; you
might be able to set this up to manipulate traffic between the ports.
Cheers,
Richard
- Posted by Uwe Bonnes on May 14th, 2006
Richard H. <rh86@no.spam> wrote:
The ADMtech/Infineon ADM5120 has 4 Switched Ports and an Upstream
Port. Edimax uses this chip in quite some products and there are also Linux
ports available.
--
Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
- Posted by Ulf Samuelsson on May 14th, 2006
t porter wrote:
Use the internal interface for one of the ports and the external DM9000E for
the second port.
The AVR32 based AT32AP7000 has dual Ethernet so this could be simpler to
use.
--
Best Regards,
Ulf Samuelsson
ulf@a-t-m-e-l.com
This message is intended to be my own personal view and it
may or may not be shared by my employer Atmel Nordic AB
- Posted by zhangjian on May 16th, 2006
SDRAM and FLASH,now i have no Example to reference,so i don't know how t
design the PCB.where can i get the PCB design Example?
- Posted by Ulf Samuelsson on May 16th, 2006
If you buy the STK1000/STK1002 development kit,
then the schematics this has both Flash/SDRAM and dual Ethernet.
Alternatively you can talk to your friendly Atmel distributor which
could just burn you a copy of the CD.
It is
Alternatively you can cut out the DM9000E schematics from the AT91SAM9261EK
and add to the schematic for the AT91RM9200-EK.
This may or may not require changes to u-boot and
definitely you need to reconfigure the Linux
--
Best Regards,
Ulf Samuelsson
ulf@a-t-m-e-l.com
This message is intended to be my own personal view and it
may or may not be shared by my employer Atmel Nordic AB
- Posted by t porter on May 16th, 2006
On Tue, 16 May 2006 06:40:11 +0200, "Ulf Samuelsson"
<ulf@a-t-m-e-l.com> wrote:
digikey. Is it even available yet?
Thanks, Tom
- Posted by Ulf Samuelsson on May 18th, 2006
In Europe they are sold by the distributors, EBV,Arrow, Acte in my region.
Only a few have been shipped to external customers so far.
More end of May.
--
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may bot be shared by my employer Atmel Nordic AB
