Finding I/O placement with a router

摘要

A method for routing a design may comprise receiving a design for implementing in a target device, wherein the design includes an input/output (I/O) signal of a functional block, and wherein the functional block is assigned to a physical component of the target device; based on the design and on a routing resource graph representing the target device, calculating a route including the physical component and a physical pin of the target device; and assigning the physical pin of the target device to the I/O signal based on the calculated route.

主权项

1. A method, comprising:
receiving a design for implementing in a target device, wherein the design includes an input/output (I/O) signal of a functional block, and wherein the functional block is assigned to a physical component of the target device; based on the design and on a routing resource graph representing the target device, creating a routing plan by calculating a route that passes through at least one node representing a physical pin that is accessible at an external surface of the target device and that has at least one end at a virtual node that is connected to the at least one node representing the physical pin; and using a computer, assigning in the routing plan the physical pin of the target device that is represented by the at least one node to the I/O signal.