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Re: AMD Au1100 problems (USB & Ethernet)

To: Michael Kelly <mike@cogcomp.com>
Subject: Re: AMD Au1100 problems (USB & Ethernet)
From: Pete Popov <ppopov@embeddedalley.com>
Date: Fri, 05 Aug 2005 13:10:40 -0700
Cc: Sylvain Munaut <tnt@246tNt.com>, "'linux-mips@linux-mips.org'" <linux-mips@linux-mips.org>
In-reply-to: <6.2.0.14.2.20050805155414.044a0f00@mail.cogcomp.com>
Organization: Embedded Alley Solutions, Inc
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <42F3C05E.7060002@246tNt.com> <1123271252.19992.189.camel@localhost.localdomain> <6.2.0.14.2.20050805155414.044a0f00@mail.cogcomp.com>
Reply-to: ppopov@embeddedalley.com
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On Fri, 2005-08-05 at 15:58 -0400, Michael Kelly wrote:
> The error count is less than .15%, not 5%.  This does not seem excessive.
> So, the question is what are these errors exactly.  We have done internal
> testing, but there is no way to test with every cable and switch/hub 
> combination.

Of course. I'm sure the CPU module itself is fine. I took a look at the
picture and it looks like the PHY is external so I'm guessing it's on
their custom PCB.

> If you could determine the actual errors (such as CRC, collision, etc) then we
> can try to determine where the errors are coming from.  It may very well be
> HW, but it is a bit too early to make such a broad statement without more
> information.

Well, could be just a cable issue, hub, etc, but I'll put that in the HW
bucket as well :)

Pete



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