Hi Phil,

thanks for the hint - it's working fine. But what does that line do. Ok, I'm 
writing the Value 10 to address 20000020 - but i don't know which register i'm 
explicit changing here.

Regards

Tino.

Mit freundlichen Grüßen
i.A.  Tino Hoffstädt
Hardwareentwicklung / Hardware Development
Tel.: +49 (0)30 769929 - 0
Fax: +49 (0)30 769929 - 12
[EMAIL PROTECTED]

GSP Sprachtechnologie Gesellschaft für elektronische Sprachsysteme mbH
Teltowkanalstr. 1
D-12247 Berlin
www.gsp-berlin.de
Registergericht: Amtsgericht Berlin Charlottenburg, HRB-Nr.: 22455
Geschäftsführer: Dr. Helmut Loebner


-----Ursprüngliche Nachricht-----
Von:
[EMAIL PROTECTED]
cidsp.com
[mailto:[EMAIL PROTECTED]
ux.davincidsp.com]Im Auftrag von Phil Quiney
Gesendet: Montag, 30. Juni 2008 09:59
An: serkan erdogan; [email protected]
Betreff: RE: Noise on DM355 LCD interface!


Hi,

Yes it does that ;-)

Use the attached program to fix it....

Put a 'writeb 20000020 0 10' into the system start up & the flicker will stop.

Regards

Phil Q 


Phil Quiney, Senior Software Engineer
Trinity Convergence
Cambridge Business Park
Cowley Road
Cambridge CB4 0WZ, UK
T: +44(0)1223-435536
F: +44(0)1223-435560
www.trinityconvergence.com


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of serkan erdogan
Sent: 30 June 2008 08:14
To: [email protected]
Subject: Noise on DM355 LCD interface!

Hii All,

i am a member of dm355 software developer team in my company. we have a problem 
with the noise appearing when we starting a software on dm355. 
we are using paralel lcd interface (but the problem is same for SVIDEO and 
COMPOSITE outputs with analog lcds) and when our software doing a lot of memory 
copy and move the screen is getting very noisy. I have tested this by different 
king of software and gui and math libraries.  
All time during the  first startup of software and the memory activity is 
getting higher the noise is reaching the top level. All time when ddr ram 
activity is high (linux memory copy and move actions) the noise coming high. 
Otherwise noise is still standing on the screen but sometimes it becomes 
intolerable.

How can we solve this problem ??? Is there anybody have this problem too??  The 
noise is appearing as some block of pixels beginning to zigzag horizontally and 
some thin group of pixel lines are sliding on screen horizontally again. After 
the succesfull starting of the software the noise is getting very very lower. 
But when another high memory activity happens the noise is getting higher again.

My kernel is default montavista linux kernel 4.0 i have done the software 
updates but the problem is still exists.

Thank you very much for help ad reading. I need all advices and ideas to 
consider on.

Serkan Erdogan


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