This tutorial is designed for engineers and students who want a practical, step-by-step guide to using Design Compiler (specifically DC 2021.03-SP4). We will move from basic setup to timing closure. Before typing a single command, ensure your environment is ready. The 2021 version introduced stricter TCL 8.6 compliance and deprecated some legacy commands. Environment Variables # In your .bashrc or .cshrc setenv SYNOPSYS_HOME /tools/synopsys/2021.03 setenv PATH $SYNOPSYS_HOME/bin:$PATH setenv SNPSLMD_LICENSE_FILE 27000@license_server setenv LM_LICENSE_FILE 27000@license_server Invocation Launch the tool via the Common UI (recommended for tutorials):
dc_shell -gui Alternatively, use the command-line mode for batch scripts: synopsys design compiler tutorial 2021
The synthetic_library for DesignWare is crucial. If you miss this, your multiplier or ALU synthesis will fail. Step 3: Reading the RTL (Two Methods) You can read Verilog, VHDL, or SystemVerilog. For 2021, read_verilog and read_vhdl are stable, but the recommended TCL command is read_file . Method A: Read and Elaborate read_file -format verilog top_module.v alu.v register_file.v current_design top_module link Method B: Analyze & Elaborate (Better for VHDL or mixed) analyze -format verilog -lib WORK top_module.v alu.v elaborate top_module -lib WORK After reading, check for generic mapping: This tutorial is designed for engineers and students