Re: mpc823 w/lcd performance
From: Wolfgang Denk <hidden>
Date: 2002-02-12 16:00:19
In message [ref] 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/