Thanks for the info.
Tim madden
From: Jack Hickish [jackhick...@gmail.com]
Sent: Monday, April 07, 2014 3:32 PM
To: Madden, Timothy J.
Cc: casper@lists.berkeley.edu
Subject: Re: [casper] One GB Ethernet block
Hey Tim,
Unfortunately, the one Gb Ethernet block is exclusively for ROACH2.
The ROACH-1 board only has 10GbE outputs (or XAUI) directly from the
FPGA via the CX4 connectors.
The only way to get data out on a slower connection is via the PowerPC
on 100mb Ethernet, using either the katcp interface or running code
directly on the PowerPC CPU.
Cheers,
Jack
On 7 April 2014 13:01, Madden, Timothy J. tmad...@aps.anl.gov wrote:
Folks
I have a few questions on the 1GB Ethernet block:
1. I assume the block connects to one of the CX4 ports on the ROACH 1 board.
Is this true?]
2. What is the data format on the CX4 port? Is it 8b/10b encoding?
3. Can I make a simple board to simply wire the CX4 pins into a cat5
connector and connect to a PC? Or do
I have to make voltage level changes and change the encoding scheme?
Tim Madden
Argonne Lab
