set_scc_mode (::quartus::sdc_ext)

The following table displays information for the set_scc_mode Tcl command:

Tcl Package and Version	Belongs to ::quartus::sdc_ext 1.0
Syntax	`set_scc_mode [-h \| -help] [-long_help]` `[-size` <size> `]` `[-use_heuristic]`
Arguments	`-h \| -help`		Short help
	`-long_help`		Long help with examples and possible return values
	`-size` <size>		Maximum SCC loop size
	`-use_heuristic`		Always use heuristic for SCC processing
Description	Allows you to set maximum Strongly Connected Components (SCC) loop size or force the Timing Analyzer to always estimate delays through SCCs. When the Timing Analyzer encounters a loop of size greater than the specified maximum SCC loop size, it uses a heuristic which only estimates delays through the loop. If the loop is smaller than the maximum SCC loop size, a full processing of loops is performed unless the -use_heuristic option is used. Avoid using the set_scc_mode command if your design targets a HardCopy series device or if you plan to migrate your design to a HardCopy series device.
Example Usage	# Make the Timing Analyzer use normal processing for all loops # the size of which is less than or equal to 100. For loops of size # greater than 100, a runtime-saving heuristic will be used set_scc_mode -size 100 # Force the Timing Analyzer to use heuristic for all SCCs # disregarding their size set_scc_mode -use_heuristic
Return Value	Code Name	Code	String Return
TCL_OK	0	INFO: Operation successful