Article ID: 000087158 Content Type: Troubleshooting Last Reviewed: 05/17/2013

CPRI IP Core Variations That Target a Cyclone V GX Device Do Not Achieve Timing Closure

Environment

    Quartus® II Subscription Edition
BUILT IN - ARTICLE INTRO SECOND COMPONENT

Critical Issue

Description

CPRI IP core variations that target a Cyclone V GX device fail to achieve timing closure with the default Quartus II Fitter settings. Specifically, they experience hold time violations on the PCS-PLD path.

Resolution

To achieve better timing closure results, perform one of the following actions:

  • Add set_min_delay assignments to overconstrain timing.
  • Try different Quartus II Fitter seeds.

This issue will be fixed in a future version of the CPRI MegaCore function.

Related Products

This article applies to 1 products

Intel® Programmable Devices

1

Need more help?

Contact support

Disclaimer

1

All postings and use of the content on this site are subject to Intel.com Terms of Use.