Honored Contributor
Honored Contributor
i noticed something else that is probably causing my problem - now i need help to resolve it. in sopc builder, i'm using the standard reference design but i have an error and a warning at the bottom message window of the gui.
the error says "one or more components could not be located (ddr_sdram_component). check Search Path[/b] under file->sopc builder setup... menu." I tried adding some directories like it said, but that doesn't seem to help. Next to the ddr_sdram component in the active components window, it says "(NOT INSTALLED)". Do I need to reinstall Quartus? How can I install just the missing component? (Where do I find it?) The warning says "nios development board, cyclone ii edition: SSRAM data byte-lanes are swapped. Refer to the Nios Development Board, Cyclone II Edition Reference Manual." Is this normal for this board? Do I need to correct this? Dave <div align='right'><{post_snapback}> (index.php?act=findpost&pid=16190) --- Quote End --- [/b] --- Quote End --- Hi Dave, Perhaps I used to have the same problem and someone in this forum helped me. So, please try this solution: 1. Install ddr Core 3.4.0 (If tou don't have, you can download the free evaluation on altera.com). 2. Open project menu, select Add/Remove Files in Project ... And in tab File, remove all the old version of ddr Core ( .vhd file ) then add the new version of ddr Core. And replace the path in user libraries ... 3. Open SOPC Builder. In Board Settings tab, there will be warning for unassigned pin of ddr, set them to assgined in quartus ii project. 4. Regenerate the system. 5. Re-compile in Quartus II. Thanks.
