From: Andrew Lunn <andrew@lunn.ch>
To: J?rgen Lambrecht <Jurgen.Lambrecht@tiscali.be>
Cc: ecos-discuss@ecos.sourceware.org
Subject: Re: [ECOS] redboot with console baudrate 115200
Date: Wed, 07 Jun 2006 09:00:00 -0000 [thread overview]
Message-ID: <20060607085952.GQ15066@lunn.ch> (raw)
In-Reply-To: <4486946D.4070706@tiscali.be>
On Wed, Jun 07, 2006 at 10:55:09AM +0200, J?rgen Lambrecht wrote:
> Hello,
>
> on my custom board based on eb55 (also AT91M55800), I have the same
> problem: Redboot works fine with all baudrates, but ymodem or xmodem not.
> The highest speed I can use is 19200 baud.
> Also Vince Z. has the same problem. Like him, I now also use TFTP instead.
>
> The strange thing is that on the eb55 demoboard, 38400 downloads are no
> problem.
How accurate is your boad rate generator? I think the older AT91 cores
had a limited baud rate generator which could not always generate the
exact baud rate needed. It could be the error is too big for higher
boad rates.
Andrew
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next prev parent reply other threads:[~2006-06-07 9:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-05 11:58 Dirk Eibach
2006-05-05 12:25 ` Andrew Lunn
2006-06-07 8:55 ` Jürgen Lambrecht
2006-06-07 9:00 ` Andrew Lunn [this message]
2006-06-07 13:43 ` GONZALEZ Laurent
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