Description
You may see this error in the Quartus® II software version 9.0 SP2 and earlier for designs targeting Stratix® IV devices when using the ALTTEMP_SENSE megafunction.
This problem only affects ALTTEMP_SENSE megafunction variation files generated in VHDL.
To work around this problem, perform either of the following steps:
- Regenerate the ALTTEMP_SENSE megafunction variation file in Verilog HDL, which is unaffected by this problem
- Comment out line 73 from the ALTTEMP_SENSE megafunction VHDL variation file (.vhd)
user_offset_enable : STRING := "off";
This problem is fixed beginning with the Quartus II software version 10.0.