bb-create-sdc

Generate SDC timing constraints from MAS specifications by running a script that parses clock_domains, io_timing, and path_exceptions to output a ready-to-run constraint file. Provide design name, MAS specs directory, and target frequency to derive the constraints.

Validate generated SDC constraints with OpenSTA to ensure consistent timing analysis across domains before synthesis. The validation process checks the derived constraints and produces a reusable artifact along with a validity flag for the PD flow.

Deriving MAS-based SDC constraints for RTL-to-GDSII pipelines requires design name, MAS specifications directory, output directory, and target frequency. Optional inputs include corner and IO delay percentage to customize the generated timing constraints.

MAS-driven SDC generation is needed in EDA flows for pre-synthesis customization, post-PD timing revisions, and design debug scenarios. It automates deriving Synopsys SDC timing constraints from MAS specifications to maintain consistent timing analysis.

Validating MAS SDC constraints with OpenSTA produces artifact_path, clocks, io_constraints, exceptions, and a validity flag. These outputs provide a reusable constraint artifact for the PD flow and confirm the timing analysis results across domains.

MAS-derived SDC files fail OpenSTA timing checks when input specifications lack proper clock_domains, io_timing, or path_exceptions definitions. Ensure the MAS specifications directory contains complete design data and verify the target frequency and optional corner inputs are correctly configured.