Why does my project with an RLDRAM or QDR interface stall in the fitter? - Why does my project with an RLDRAM or QDR interface stall in the fitter? Description Due to a problem in the Quartus® II software, the compilation may never finish during the fitter stage if you let the Quartus® II software auto-place the pins. This issue is caused by the fitter placing multiple strobe pins or data mask (DM) pins from different interfaces into the same x4 DQ/DQS group when using RLDRAM II, RLDRAM III, QDR, or QDR II. Resolution To work around this issue, manually place the strobe pins and DM pins into different x4 DQ/DQS groups. This issue has been fixed in the Quartus® II software version 13.0. Custom Fields values: ['novalue'] Troubleshooting 2205799492 False ['RLDRAM 3 UniPHY IP'] ['FPGA Dev Tools Quartus II Software'] 13.0 12.1 ['Arria® II GX FPGA', 'Arria® II GZ FPGA', 'Arria® V GT FPGA', 'Arria® V GX FPGA', 'Arria® V GZ FPGA', 'Arria® V ST FPGA', 'Arria® V SX FPGA', 'HardCopy™ III ASIC Devices', 'HardCopy™ IV E ASIC Devices', 'HardCopy™ IV GX ASIC Devices', 'Stratix® III FPGAs', 'Stratix® IV E FPGA', 'Stratix® IV GT FPGA', 'Stratix® IV GX FPGA', 'Stratix® V E FPGA', 'Stratix® V GS FPGA', 'Stratix® V GT FPGA', 'Stratix® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']