From: Dan Malek <dan@netx4.com>
To: "Brown, David (dbrown03)" <DBrown03@harris.com>
Cc: "'Dan Malek'" <dan@netx4.com>,
"'linuxppc-embedded@lists.linuxppc.org'"
<linuxppc-embedded@lists.linuxppc.org>
Subject: Re: Serial Port Baud Rate
Date: Tue, 08 Aug 2000 17:59:38 -0400 [thread overview]
Message-ID: <399082CA.1DA9D0D1@embeddededge.com> (raw)
In-Reply-To: BE1C564723B3D21191FD0000F840E39801D815F8@rfcmx2.rfc.comm.harris.com
"Brown, David (dbrown03)" wrote:
>
> Baud rates 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 worked
> for me, with simple tests.
Thanks (I was mostly giving you a hard time, but I do appreciate the
testing :-).
> The lower Baud rates lose characters when the device is closed before it has
> been emptied, but that's a known condition which is usually not a problem
> for embedded work.
Yeah. Unfortunately, there isn't any way to know when the last bit of
the UART has left the CPM shifter. The only method is to delay based upon
the FIFO depth and bit rate. That obviously isn't implemented very well.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-08-08 21:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-08-08 21:37 Serial Port Baud Rate Brown, David (dbrown03)
2000-08-08 21:59 ` Dan Malek [this message]
-- strict thread matches above, loose matches on Subject: below --
2000-08-07 20:37 Brown, David (dbrown03)
2000-08-08 19:47 ` Dan Malek
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