Hello Serkan Erdogan, you wrote that you are using a parallel LCD-panel with the DM355. I'm very interested in this issue. What size is your LCD panel? What kind of LVDS converter you are using. Are there any problems connecting the LCD panel. How do I resize (scale) the mpeg4-videostream from PAL/NTSC to LCD-size. I can't find any infos about this topic.
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] [mailto:[EMAIL PROTECTED] Auftrag von serkan erdogan Gesendet: Montag, 30. Juni 2008 09:14 An: [email protected] Betreff: 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 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
