Altera Quartus II Settings File - Manual (Page 124)

MAX_BALANCING_DSP_BLOCKS
Allows you to specify the maximum number of DSP blocks that the DSP block balancer will assume exist
in the current device for each partition. This option overrides the usual method of using the maximum
number of DSP blocks the current device supports. For HardCopy II devices, the number of DSP blocks
represents the number of DSP blocks used in the equivalent Stratix II device. This option is useful for
HardCopy II device migration, where the number of DSP blocks that can be implemented in a HardCopy
II device is more than the number of DSP blocks that can be implemented in its equivalent Stratix II
device.This option is also useful in incremental compilation to set different DSP block usage limits for
different partitions.
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_BALANCING_DSP_BLOCKS
set_instance_assignment -name MAX_BALANCING_DSP_BLOCKS -to -entity
Default Value
-1 (Unlimited)
Example
set_global_assignment -name max_balancing_dsp_blocks 4
set_instance_assignment -name max_balancing_dsp -to
"my_partition_root_entity:my_partition_root_entity_inst"
124 MAX_BALANCING_DSP_BLOCKS
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
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