On Fri, Nov 16, 2012 at 9:19 AM, David MacMahon
<dav...@astro.berkeley.edu>wrote:
> Thanks, Shanly,
>
> Is it correct to assume that each manufacturer's batch number is unique
> for that manufacturer only?
IOW, Digicom ('D' = 0x44) could build a roach2 rev 2, batch 1, board 1 and
> another manufacturer could also build a roach2 rev 2, batch 1, board 1 and
> the only distinction between their serial numbers would be the 'D' vs the
> other manufacturer's letter?
>
Yes thats right.
>
> Thanks again,
> Dave
>
> On Nov 15, 2012, at 11:04 PM, Shanly Rajan wrote:
>
> > 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 <a...@ska.ac.za>
> > Date: Fri, Jul 20, 2012 at 4:20 PM
> > Subject: ROACH2 Serial number scheme
> > To: Mo Ohady <m...@digicom.org>, Kelvin <kel...@digicom.org>, Mark Wagner
> <mwag...@ssl.berkeley.edu>, Jonathan Weintroub <jweintr...@cfa.harvard.edu>,
> Marc Welz <m...@ska.ac.za>, Shanly Rajan <sha...@ska.ac.za>, Francois
> Kapp <francois.k...@ska.ac.za>, Philip Gibbs <p...@ska.ac.za>, Jason
> Manley <jman...@ska.ac.za>, Dan Werthimer <d...@ssl.berkeley.edu>
> >
> >
> > 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)
> >
>
>
--
Shanly Rajan
SKA-SA
DBE Team
021 506 7362 (O)
072 783 2022 (M)
