Article ID: 000081505 Content Type: Error Messages Last Reviewed: 09/11/2012

Error (170084): Can't route signal "|altdq_dqs2_stratixv:altdq_dqs2_inst|dqs_enable_int" to atom "|altdq_dqs2_stratixv:altdq_dqs2_inst|dqs_ff"

Environment

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

    When compiling a Stratix® V DDR3 UniPHY controller design in the Quartus® II software version 11.1 and 11.1SP1, you may get the following error message:

    Error (170084): Can't route signal "<hierarchy>|altdq_dqs2_stratixv:altdq_dqs2_inst|dqs_enable_int" to atom "<hierarchy>|altdq_dqs2_stratixv:altdq_dqs2_inst|dqs_ff"

    The error occurs when "enable read DQS tracking" is selected in the DDR3 Megawizard.

    Resolution

    The workaround is to uncheck "enable read DQS tracking" and regenerate the DDR3 UniPHY controller.

    This issue is fixed in Quartus II software and IP version 11.1SP2.

    Related Products

    This article applies to 5 products

    Stratix® V FPGAs
    Stratix® V GX FPGA
    Stratix® V GT FPGA
    Stratix® V E FPGA
    Stratix® V GS FPGA

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