vivado-constraints

What problem does it solve?

This skill helps hardware designers craft Vivado XDC/SDC timing and physical constraints accurately, reducing debugging time and preventing timing violations.

Core Features & Use Cases

• Support for clock definitions (create_clock, create_generated_clock, virtual clocks) and proper usage across synthesis and implementation.
• IO timing and delay constraints (set_input_delay, set_output_delay, DDR timing) to ensure reliable data capture.
• Timing exceptions and CDC controls (set_false_path, set_multicycle_path, set_max_delay, set_min_delay, set_clock_groups, set_bus_skew) to manage cross-domain paths.
• Constraint scoping, precedence rules, and debugging guidance (SCOPED_TO_REF, constraint ordering, check_timing, report_exceptions, report_clock_interaction).

Quick Start

Start by defining a primary clock on an input port, apply input/output delay constraints, and then add timing exceptions as required for your design.