Article ID: 000082958 Content Type: Error Messages Last Reviewed: 08/27/2018

Error(19173): The instance name "altshift_taps:datwords_rr_rtl_0" is already in use elsewhere in this scope. If instantiated in a generate block, ensure the block is named.

Environment

  • Intel® Quartus® Prime Pro Edition
  • Intel® FPGA IP 50G Interlaken IP-ILKN/50G
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT

    Critical Issue

    Description

    Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 18.0 Update 1 and earlier, you may see this synthesis error message during compilation when a 50G Interlaken Intel® FPGA IP is instantiated in an Intel® Arria® 10 design.

    Resolution

    To work around this problem,  add the following in the Quartus Setting File (.qsf) to prevent the affected register being inferred as altshift_taps.

    For example:

    set_instance_assignment -name AUTO_SHIFT_REGISTER_RECOGNITION OFF -to * -entity ilk_iw4_rx_channel_filter 

    This problem is fixed starting in the Intel® Quartus® Prime Pro Edition Software version 18.1. 

    Related Products

    This article applies to 1 products

    Intel® Arria® 10 FPGAs and SoC FPGAs

    Disclaimer

    1

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