Altera Quartus II Scripting User Manual download pdf (Page 621)

Chapter 3: Tcl Packages & Commands 3–491

timing_assignment

## Set early clock latency to Clk0

set_clock_latency 2ns -to Clk0 -early

## Set early and late clock latency to Clk*

set_clock_latency 2ns -to Clk*

## Use assignment_group to set clock latency.

assignment_group "clock_group" -add_member "Clk*" -add_exception "Clk0"

set_clock_latency 2ns -to "clock_group" -early

## Commit the assignments to .qsf file.

export_assignments

Altera Quartus II Scripting User Manual Page 621