Design Compiler Tutorial 2021 | Synopsys

Logic synthesis is the process of converting a behavioral description of a circuit (RTL) into a gate-level netlist tailored for a specific technology library. Synopsys Design Compiler (DC) 2021 is designed to handle the growing complexities of advanced technology nodes, offering enhanced performance in optimization, power management, and timing closure. Translation: Converting RTL to logic gates.

For a first-pass timing closure, use compile_ultra . In DC 2021, add the -timing_high_effort flag.

Before launching Design Compiler, you must configure the environment variables and library paths. Design Compiler looks for a hidden file named .synopsys_dc.setup in your working directory, home directory, or the tool installation path.

Optimized for quad-core and multicore servers for faster synthesis. 2. Environment Setup

#VLSIDesign #Synopsys #DesignCompiler #DigitalSynthesis #Semiconductor #RTL to go along with this tutorial post? synopsys design compiler tutorial 2021

The most critical step is creating the setup file. Design Compiler looks for this file in three locations in order of precedence:

The data arrived too late. You must re-optimize or change your code architecture. 7. Exporting Output Files

Mapping GTECH to specific cells from your Target Library.

write -format verilog -hierarchy -output outputs/final_netlist.v Logic synthesis is the process of converting a

Now, let's walk through the in DC.

Combine all individual workflow steps into a unified, reusable Tcl script. Save this block as scripts/synthesis.tcl .

report_timing -path full -delay max -nworst 10 > reports/timing_setup.rpt report_timing -delay min > reports/timing_hold.rpt

Define design constraints in Tcl format to guide the synthesis tool on timing, area, and power. For a first-pass timing closure, use compile_ultra

Before starting, ensure you have the RTL code, standard cell libraries, and a Synopsys Design Constraints (SDC) file.

# Model driving strength of inputs using an existing library cell inverter set_driving_cell -lib_cell INVX4 [remove_from_collection [all_inputs] [get_ports clk]] # Model external capacitive loading on output pins set_load 0.05 [all_outputs] Use code with caution. Operating Conditions and Area Constraints

Finally, you save the synthesized database as a .ddc file (Synopsys's binary format), the gate-level netlist as a .v file, and the final constraints as a .sdc file for use in other tools like PrimeTime for STA or IC Compiler II for physical design.

# Analyze SystemVerilog files analyze -format sverilog top_module.sv controller.sv datapath.sv # Elaborate the top-level design module elaborate top_module Use code with caution. Method B: Read File