Thread (1 message) 1 message, 1 author, 2002-02-12

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
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