Synopsys Design Compiler Tutorial 2021 Patched Today

Constraints guide Design Compiler on how aggressively to optimize the circuit. These are written using Synopsys Design Constraints (SDC) syntax. Clock Constraints

The compile or compile_ultra command translates logic into technology gates. compile_ultra is preferred for modern designs because it applies advanced optimizations like register retiming and arithmetic pipelining.

# .synopsys_dc.setup

# Basic compilation compile

Registering the outputs of major design blocks makes predicting input/output delays much easier, which helps Design Compiler optimize boundary logic more effectively. synopsys design compiler tutorial 2021

Constraints tell Design Compiler how fast the circuit needs to run and how much physical space it can occupy. These constraints are typically written using Synopsys Design Constraints (SDC) syntax.

With the design loaded and constraints set, you are ready to synthesize. Constraints guide Design Compiler on how aggressively to

dc_shell> link dc_shell> check_design

# Maximum fanout for a cell (prevents heavy loading) set_max_fanout 4 [current_design] compile_ultra is preferred for modern designs because it