Article ID: 000078481 Content Type: Troubleshooting Last Reviewed: 08/22/2014

Why can't the fractional PLL (fPLL) paramaters be changed using the Resource Property Editor or Chip Planner, when targeting Stratix V, Arria V or Cyclone V devices?


  • PLL
    Description It is not possible to edit the parameters of fPLLs using the Resource Property Editor or Chip Planner in the Quartus® II software, when designing with Stratix® V, Arria® V or Cyclone® V devices.
    Resolution Utilise the PLL Reconfiguration feature to dynamically update the fPLL parameters. For further details, refer to AN661 : Implementing Fractional PLL Reconfiguration with Altera PLL and Altera PLL Reconfig Megafunctions (PDF)

    Related Products

    This article applies to 11 products

    Cyclone® V GT FPGA
    Stratix® V GX FPGA
    Cyclone® V GX FPGA
    Arria® V GZ FPGA
    Arria® V SX SoC FPGA
    Cyclone® V ST SoC FPGA
    Arria® V ST SoC FPGA
    Arria® V GX FPGA
    Arria® V GT FPGA
    Cyclone® V E FPGA
    Cyclone® V SE SoC FPGA



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