Altera Quartus II Settings File - Manual (Page 127)

MAX_NUMBER_OF_REGISTERS_FROM_UNINFERRED_RAMS
Allows you to specify the maximum number of registers that Analysis & Synthesis can use for conversion
of uninferred RAMs. You can use this option as a project-wide option or on a specific partition by setting
the assignment on the instance name of the partition root. The assignment on a partition overrides the
global assignment (if any) for that particular partition. This option prevents synthesis from causing long
compilations and running out of memory when many registers are used for uninferred RAMs. Instead of
continuing the compilation, the Quartus II software issues an error and exits.
Type
Integer
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment is included in the Analysis & Synthesis report.
This assignment supports synthesis wildcards.
Syntax
set_global_assignment -name MAX_NUMBER_OF_REGISTERS_FROM_UNINFERRED_RAMS
set_instance_assignment -name MAX_NUMBER_OF_REGISTERS_FROM_UNINFERRED_RAMS -
to -entity
Default Value
-1 (Unlimited)
Example
set_global_assignment -name max_number_of_registers_from_uninferred_rams
2048
MNL-Q21005
2015.05.04
MAX_NUMBER_OF_REGISTERS_FROM_UNINFERRED_RAMS 127
Quartus Settings File Reference Manual Altera Corporation
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