Congestion Analysis and Global Routing Support in DPA

Creation of routes is required for the interface nets of a virtual hierarchy to allow pins to be created on the boundary using the Make Cell form. The Design Planning and Analysis (DPA) tool supports an in-built global router to automatically route all or selected nets or to manually route selected critical nets. The tool also lets you change the virtual hierarchy display depth to allow the global router to see inside and route to internal components. For components that are opaque to the router, the router stops at the boundary.

To perform a detailed analysis of the generated routes to determine the routing capacity of the design, you can use the in-built congestion analysis tool. Having direct access to the congestion analysis tool makes it possible to have genuine and real routing congestion analysis information available upfront, which allows for better optimization of the top-level placement. The DPA tool supports seamless transitions across the generate-place-route phases, until an optimum layout plan is created. For more information on the in-built congestion analysis support in DPA, see Running Congestion Analysis.

Related Topics

Make Cell Form

Generating All Components From Source

Editing In Place

Check Against Source

Update Components And Nets

Analyze Connectivity

Running the Auto Placer