Article ID: 000079869 Content Type: Error Messages Last Reviewed: 03/27/2023

Warning: DQ I/O pins fed by DQS I/O pin assigned different I/O standards

Environment

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

    After running the pin_assignments.tcl and performing compilation, you will get a warning as below:

    Warning (181009): DQ I/O pins fed by DQS I/O pin "I/O pad mem_dqs[*]" assigned different I/O standards -- it is recommended that all DQ I/O pins fed by the same DQS I/O pin have the same I/O standard

    This is because legality checks don't understand that differential and single-ended I/O standards are the same.

     

     

    Resolution

    This issue has been fixed in Intel® Quartus® Prime Software version 13.0.

    Related Products

    This article applies to 6 products

    Arria® V GX FPGA
    Arria® V GZ FPGA
    Arria® V ST SoC FPGA
    Cyclone® V SX SoC FPGA
    Cyclone® V ST SoC FPGA
    Cyclone® V SE SoC FPGA