From mboxrd@z Thu Jan 1 00:00:00 1970 To: Kyle Harris Cc: linuxppc-embedded Subject: Re: mpc823 w/lcd performance From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Tue, 12 Feb 2002 10:28:31 EST." <3C69349F.37B0B21C@nexus-tech.net> Date: Tue, 12 Feb 2002 17:00:19 +0100 Message-Id: <20020212160024.2E062109D7@denx.denx.de> Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: 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/