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--- Quote End --- You've got to delete and re-generate in SOPC Builder. Also, there should be a script that removes any/all DDR settings/constraints from your QSF file, unless (of course) you've already deleted that :-) Cheers, - slacker <div align='right'><{post_snapback}> (index.php?act=findpost&pid=19846)</div> --- Quote End --- Hi,thanks slacker According to your words,I do the following steps: 1) open the project E:\altera\kits\nios2_60\examples\vhdl\niosII_cycloneII_2c35\standard\standard.qpf 2) delete the component DDR in SOPC ,then re-generate 3)in quartus,start full compilation,but find error message such as: Info: Command: quartus_sh -t auto_verify_ddr_timing.tcl compile standard standard Info: Quartus(args): compile standard standard Error: Tcl error: can't find package ::ddr::settings while executing "package require ::ddr::settings" (file "./verify_timing_for_ddr_sdram.tcl" line 54) invoked from within "source ./verify_timing_for_ddr_sdram.tcl" (file "auto_verify_ddr_timing.tcl" line 11) Error: Evaluation of Tcl script auto_verify_ddr_timing.tcl unsuccessful Error: Quartus II Shell was unsuccessful. 2 errors, 0 warnings Error: Processing ended: Wed Dec 06 15:40:01 2006 Error: Elapsed time: 00:00:02 Error: Quartus II Full Compilation was unsuccessful. 2 errors, 632 warnings how an I do?
