Article ID: 000086885 Content Type: Error Messages Last Reviewed: 04/09/2024

Internal Error: Sub-system: FSAC, File: /quartus/fitter/fsac/fsac_ff_register_packer_op.cpp, Line: 7183

Environment

  • Intel® Quartus® Prime Pro Edition
    • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Due to a problem in the Quartus® Prime software version 18.1 Update 1 and later, you may see this internal error when you use different synchronous clearing signals to RAM two ports registers (porta and portb) in your design.

     

    Resolution

    To work around the problem, you can either add this altera_attribute to your RTL code:

    (* altera_attribute = "-name QII_AUTO_PACKED_REGISTERS OFF" *)

     

    Or modify the .qsf file with the below setting:

    set_instance_assignment -name QII_AUTO_PACKED_REGISTERS -to  <RAM instance or register name>  OFF

     

     

    Related Products

    This article applies to 1 products

    Intel® Programmable Devices

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