From: "Kurt Siedenburg" <kurt.siedenburg@vicom.com>
To: "Edgar Grimberg" <edgar.grimberg@zylin.com>,
"Bart Veer" <bartv@ecoscentric.com>
Cc: <ecos-patches@ecos.sourceware.org>
Subject: RE: STRATA v2 buffered programming fix
Date: Fri, 16 Oct 2009 17:01:00 -0000 [thread overview]
Message-ID: <8DF19BDE1EAEBE408BD5D46E1CD4AF8DFEB4BB@mse12be1.mse12.exchange.ms> (raw)
In-Reply-To: <d0f570ed0910160809v4e1824e9q488e983ff6031636@mail.gmail.com>
Edgar,
a while ago I got Nymonyx 65nm P30 chips as a replacement for older
Strata chips. One problem I encountered is an incompatibility to its
predecessors: The buffer size for programmed operations has increased
to 512 words (that's not yet incompatible). However you can only use
the full buffer size if it is naturally aligned.
The datasheet reads
"The maximum buffer size would be 256-word if the misaligned address
range is crossing a 512-word boundary during programming."
Maybe this is the source of your troubles.
It definitly took me a while to find this piece of information.
I had suggested a patch for this issue a while back (Mar 5/6 2009) on
this list.
I didn't check/follow up on it to see if it ever made it to the
repository.
I recall vaguely that someone else contributed another patch in this
area sometime later.
Maybe that patch addresses the issue above as well.
Best,
Kurt
next prev parent reply other threads:[~2009-10-16 17:01 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-16 8:34 Edgar Grimberg
2009-10-16 14:50 ` Bart Veer
2009-10-16 15:09 ` Edgar Grimberg
2009-10-16 17:01 ` Kurt Siedenburg [this message]
2009-10-19 11:05 ` Edgar Grimberg
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