Error: "933.333" is not a valid memory speed grade - Error: "933.333" is not a valid memory speed grade Description You may see the error message when you generate a UniPHY-based DDR3L IP with a memory device speed grade equal to or higher than 933.333Mhz. Error: "933.333" is not a valid memory speed grade Error: argument to math function didn't have numeric value while executing "expr {double() (( - ) * ( - ) / ( - ))}" invoked from within "return [expr {double() (( - ) * ( - ) / ( - ))}]" Resolution This issue is fixed in the Quartus® II software version 15.0. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] 15.0 13.0 ['Arria® V GT FPGA', 'Arria® V GX FPGA', 'Arria® V GZ FPGA', 'Arria® V ST FPGA', 'Arria® V SX FPGA', 'Cyclone® V E FPGA', 'Cyclone® V GT FPGA', 'Cyclone® V GX FPGA', 'Cyclone® V SE FPGA', 'Cyclone® V ST FPGA', 'Cyclone® V SX FPGA', 'Stratix® V GS FPGA', 'Stratix® V GT FPGA', 'Stratix® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']