RapidIO Intel FPGA IP User Guide

ID 683884
Date 9/15/2021
Public
Document Table of Contents

2.9.3. Correcting the Synopsys Design Constraints File to Distinguish RapidIO IP Core Instances

When you instantiate multiple RapidIO IP core instances in your design, you must modify the Synopsys Design Constraints File (.sdc) to repeat the create_generated_clock statements for each IP core instance. The statements must include the full name of the variation in the clock names.

If you do not do this, the source and destination clocks each have multiple matches; the rxclk and clk_div_by_2 filters match the relevant clocks in all of the IP core instances.