Article ID: 000080094 Content Type: Product Information & Documentation Last Reviewed: 08/27/2013

How do I modify the "Starting Channel Number" parameter in a Qsys-Generated RapidIO transceiver instance?

Environment

  • Cyclone® IV GX FPGA
  • Stratix® IV GT FPGA
  • Stratix® IV GX FPGA
  • Arria® II GX FPGA
  • Arria® II GZ FPGA
  • Quartus® II Subscription Edition
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    Description

    The Qsys-generated RapidIO variant will not allow you to modify the "Starting Channel Number" of its transceivers.

    This applies to the Cyclone® IV, Arria® II and Stratix® IV transceiver family of devices using Quartus® II software versions 13.0sp1 and earlier.

    Resolution

    To work around this problem and modify the "Starting Channel Number" of a Qsys-generated RapidIO transceiver instance, manually change the MegaWizard™ generated RTL using the following steps:

    1. Navigate to the synthesis/submodules directory of the Qsys instance.
    2. Open the "<instance_name>_qsys_rapidio_0_riophy_gxb.v file and change the parameter "starting_channel_number" to your desired value.

    This problem will be fixed in a future version of the Quartus II software.

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