Article ID: 000078342 Content Type: Troubleshooting Last Reviewed: 10/12/2011

Compilation of a design targeting Stratix IV GX devices that contains an ALTGX megafunction fails with the error Error: One or more transceiver atoms cannot be placed

Environment

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

    Critical Issue

    Description

    In the MegaWizard Plug-In Manager for Stratix IV GX ALTGX megafunctions, if you select XN in the Which subprotocol will you be using box and then select None in the same box, the MegaWizard Plug-In Manager generates incorrect parameters. During compilation, these incorrect parameters cause fitting to fail with errors similar to the following:

    Error: One or more transceiver atoms cannot be placed

    Resolution

    Do not change the subprotocol setting from None to XN and then back to None.

    Related Products

    This article applies to 1 products

    Stratix® IV FPGAs