set_input_delay -clock clk -max 0.6 [remove_from_collection [all_inputs] [get_ports clk]] set_output_delay -clock clk -max 0.6 [all_outputs]
Comprehensive Guide to Synopsys Design Compiler Synopsys Design Compiler (DC) is the industry-standard RTL synthesis tool. It transforms Hardware Description Language (HDL) code into an optimized, technology-specific gate-level netlist. This tutorial provides a structured, production-ready workflow for executing logic synthesis using Design Compiler. 1. Introduction to Logic Synthesis
set_input_transition 0.2 [all_inputs]
Load your constraints to define clock speed, input delays, and output loads.
Create a file named run_synthesis.tcl .
# Verilog netlist for downstream tools write -f verilog -hierarchy -output outputs/rv32i_core_synth.v
import synopsys_dc as dc
report_power > ./reports/power.rpt
The preferred method over old dc_shell commands for robustness. synopsys design compiler tutorial 2021
By using compile_ultra in topographical mode (or simply using DC-G's default flow), you provide a floorplan to DC. The tool then performs "virtual routing" to estimate net delays far more accurately. This results in a netlist with timing and area within ~5% of the final placed design, significantly reducing iterations between synthesis and layout.