From: Wolfgang Denk <wd@denx.de>
To: Kyle Harris <kharris@nexus-tech.net>
Cc: linuxppc-embedded <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: mpc823 w/lcd performance
Date: Tue, 12 Feb 2002 17:00:19 +0100 [thread overview]
Message-ID: <20020212160024.2E062109D7@denx.denx.de> (raw)
In-Reply-To: Your message of "Tue, 12 Feb 2002 10:28:31 EST." <3C69349F.37B0B21C@nexus-tech.net>
In message <3C69349F.37B0B21C@nexus-tech.net> you wrote:
>
> Should I have reasonable performance running a MPC823 with the LCD
> controller driving a 640x480 color TFT panel? The reason I ask is that I
You should. Not exactly rocking, but reasonable.
> compile the kernel with lcd823.c (pulled from Wolfgang's ftp site)
> selecting the SHARP LQ64D340. The system slows to a crawl. I calculate
It's working here in a couple of configurations. Running Microwindows
and some fltk/flnx based application on top of it. Performance seems
OK to me.
> the LCD using 26% of bus bandwidth. But, it appears to be using much
> more. I haven't actually hooked up the panel yet (waiting for cabling).
Please keep me posted - I'd like to know what you find out.
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
See us @ Embedded Systems Nuremberg, Feb 19-21, Hall 12 K01 (with TQ)
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2002-02-12 16:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-12 15:28 mpc823 w/lcd performance Kyle Harris
2002-02-12 16:00 ` Wolfgang Denk [this message]
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