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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

assignment_group usage in SDC

I am trying to use assignment groups to simplify my SDC file. But I am having problems getting them to work. I have SDC code as follows (simplified obviously, the group will eventually add add...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

I was able to resolve. I should mention this is for the 7.2 SP3 tools.

Resolution was:

Groups are defined in the qsf file.

In the quartus project, add the signals for a given interface to an assignment group (Assignments->Assignment Groups). Then you can call the assignment group from the SDC as follows: 


#  SDO
set_input_delay -clock_fall -min -clock adc_clk $adc_i_min 
set_input_delay -clock_fall -max -clockadc_clk $adc_i_max 
set_multicycle_path -setup 	-from	 
							-to		$main_clk 
							16	
set_multicycle_path -hold 	-from	 
							-to		$main_clk 
							15