Device Family: Arria® V GT, Arria® V GX, Arria® V GZ, Arria® V ST, Arria® V SX, Cyclone® V E, Cyclone® V GT, Cyclone® V GX, Cyclone® V SE, Cyclone® V ST, Cyclone® V SX, Stratix® V GS, Stratix® V GT, Stratix® V GX

Type: Answers

Area: EMIF, Intellectual Property


IP Product: DDR3 SDRAM Controller MegaCore supporting UniPHY

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() + (( - ) * ( - ) / ( - ))}]" 

Workaround/Fix

This issue is fixed in the Quartus® II software version 15.0.