Article ID: 000074270 Content Type: Product Information & Documentation Last Reviewed: 08/28/2012

How do I change the input clock frequency selection in the ALTLVDS_RX and ALTLVDS_TX MegaWizard Plug-In Manager targeting Stratix V devices?

Environment

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

    Due to a problem in the Quartus® II software version 10.1 and later, the Specify input clock rate by drop-down menu may only display 100MHz in the ALTLVDS_RX and ALTLVDS_TX MegaWizard™ Plug-In manager when targeting Stratix® V devices. This problem may occur if you only installed Stratix V devices during Quartus II installation.

    This affects other drop lists in the ALTLVDS_TX and ALTLVDS_RX megafunctions as well.

    To work around this problem, ensure that you include the Stratix IV devices in addition to Stratix V devices during the Quartus II software installation.

    Resolution

    To work around this problem, ensure that you include the Stratix IV devices in addition to Stratix V devices during Quartus II installation.

    This problem is scheduled to be fixed in a future release of the Quartus II software.

    Related Products

    This article applies to 4 products

    Stratix® V E FPGA
    Stratix® V GX FPGA
    Stratix® V GT FPGA
    Stratix® V GS FPGA

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