From: Gerhard Jaeger <g.jaeger@sysgo.com>
To: linuxppc-embedded@lists.linuxppc.org
Cc: "Mark Jonas" <mark.jonas@gmx.de>,
"Iñigo Lopez Barranco" <ilopez@albatros-sl.es>
Subject: Re: Lite5200 PCI not working
Date: Tue, 22 Jun 2004 08:08:40 +0200 [thread overview]
Message-ID: <200406220808.41005.g.jaeger@sysgo.com> (raw)
In-Reply-To: <40D734CE.9090502@gmx.de>
Hi,
On Monday 21 June 2004 21:19, Mark Jonas wrote:
> Iñigo,
>
> I experienced this behavior with an USB card before. With that card the
> reason was a short on the USB card between 3.3V and 5V supply pins. In a
> normal PC this seems to be no problem (maybe because a PC's PCI ports
> are 5V only).
there seem to be more cards like these, they're in fact badly designed - they
shorten the VI/O pins and 5V on the card, which could cause some trouble
on the Lite5200, as the VI/O stuff is directly connected to the RAM chips and
their I/O does not like the 5V...
We sorted out some cheap networking adaptors...
> The Lite5200 survived.
"What a lucky man he was" :-)
> To be sure if this is the problem I recommend testing the card for the
> short.
That's a great idea, check esp. shortage between the VI/O and 5V lines on the
card...
Gerhard
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-06-22 6:08 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-21 10:03 Lite5200 PCI not working Iñigo Lopez Barranco
2004-06-21 10:26 ` Gerhard Jaeger
2004-06-21 10:53 ` Wolfgang Denk
2004-06-21 11:39 ` Gerhard Jaeger
2004-06-21 14:12 ` Kate Alhola
2004-06-21 15:14 ` Wolfgang Denk
2004-06-21 16:20 ` Kate Alhola
2004-07-01 8:41 ` Stefan Nickl
2004-07-01 8:52 ` Wolfgang Denk
2004-06-21 10:51 ` Wolfgang Denk
2004-06-21 19:19 ` Mark Jonas
2004-06-22 6:08 ` Gerhard Jaeger [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-06-21 11:12 Iñigo Lopez Barranco
2004-06-21 11:48 ` Gerhard Jaeger
2004-07-01 9:18 Wolfgang Denk
2004-07-01 11:36 ` Kate Alhola
2004-07-01 12:38 ` Stefan Nickl
2004-07-01 22:20 ` Kate Alhola
2004-07-01 22:29 ` Wolfgang Denk
2004-07-02 4:43 ` Kate Alhola
2004-07-02 7:22 ` Wolfgang Denk
2004-07-02 7:55 ` Kate Alhola
2004-07-02 8:51 ` Wolfgang Denk
2004-07-08 11:57 ` Stefan Nickl
2004-07-08 12:12 ` Wolfgang Denk
[not found] <20040708124140.E18E4C109F@atlas.denx.de>
2004-07-08 13:34 ` Stefan Nickl
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