Synopsys Design Compiler Tutorial 2021 ((hot)) -
# Define path directories set project_path "/home/user/project/synthesis" set lib_path "/opt/foundry/tsmc/65nm/libs" # Configure search path set search_path [list . $project_path/rtl $lib_path/db $search_path] # Configure libraries set target_library [list tsmc65nm_ss_0v9_125c.db] set link_library [list * tsmc65nm_ss_0v9_125c.db sram_2kx32_ss.db] set symbol_library [list tsmc65nm.sdb] # Define work directory mapping define_design_lib WORK -path ./WORK echo "--- Synthesis Environment Setup Complete ---" Use code with caution. 3. Reading and Analyzing the Design
"Mastering Digital Synthesis: A Synopsys Design Compiler (DC) Tutorial."
Create a .synopsys_dc.setup file to define paths and libraries:
A proper setup is crucial for efficient synthesis. In 2021, the emphasis is on and utilizing design libraries efficiently. 2.1 Directory Structure Organize your workspace for clarity: /rtl : Contains VHDL/Verilog files. /libs : Contains technology files (.db, .tf, .lib). /scripts : Tcl scripts for synthesis. /work : Working directory for output files. 2.2 Environment Variables (Tcl) synopsys design compiler tutorial 2021
Input and output ports operate relative to external system components. You must tell DC how much time is consumed outside your module.
For further learning, consult the dc_ug.pdf (User Guide) from the 2021 documentation suite, specifically Chapters 6 (Constraints) and 11 (Compile Strategies).
This tutorial provides a complete walkthrough of the logic synthesis workflow, covering environment setup, constraints definition, optimization strategies, and report analysis. 1. Introduction to Logic Synthesis /libs : Contains technology files (
Contains the actual cells (AND, OR, Flip-Flops) that the tool uses to map the design. These files usually have a .db extension.
report_timing > timing.rep report_area > area.rep write -format ddc -hierarchy -output final_design.ddc write_verilog -hierarchy -output gate_level.v Use code with caution. 4. Key 2021 Features and Best Practices
load_upf my_power_intent.upf
After compilation, never assume success. You must analyze the reports.
To use Synopsys Design Compiler, you need to: