Dave Im forwarding an email that was circulated a few weeks back on the ROACH2 serial number scheme.
Regards Shanly ---------- Forwarded message ---------- From: Alec Rust <[email protected]> Date: Fri, Jul 20, 2012 at 4:20 PM Subject: ROACH2 Serial number scheme To: Mo Ohady <[email protected]>, Kelvin <[email protected]>, Mark Wagner < [email protected]>, Jonathan Weintroub <[email protected]>, Marc Welz <[email protected]>, Shanly Rajan <[email protected]>, Francois Kapp < [email protected]>, Philip Gibbs <[email protected]>, Jason Manley < [email protected]>, Dan Werthimer <[email protected]> Please note that this is the serial number scheme that should be used for ROACH2: The serial number is 5 characters long and in this format (these are 8-bit characters): Manufacturer, type, revision, batch, board Manufacturer: Each manufacturer will have a letter assigned, this value is then the ASCII code for that letter. Digicom is D or 68 (44 hex) in ASCII. Type: This is the type of ROACH, ROACH1 = 0 and ROACH2 = 1, etc. for following versions. Revision: Board revision Batch: Build batch (256 batches possible) Board: Board number in the batch (256 boards per batch possible). So the 9'th board in production run 6 by Digicom for ROACH2, revision 2 boards will have the following serial number: 44:01:02:06:09 or may be printed as D01020609. We derive default MAC addresses from this serial number by adding 02 to the front, so the MAC address for the example above is: 02:44:01:02:06:09 Please note that these are only to be used on internal networks, if a ROACH board is to be used "in the wild" a proper MAC address must be acquired. Regards Alec -- Shanly Rajan SKA-SA DBE Team 021 506 7362 (O) 072 783 2022 (M)
