Article ID: 000079264 Content Type: Error Messages Last Reviewed: 08/27/2013

Warning (12030): Port "rx_cda_max" on the entity instantiation of "ALTLVDS_RX_component" is connected to a signal of width 1. The formal width of the signal in the module is <number_of_channels&gt

Environment

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

    Warning (12030): Port "rx_cda_max" on the entity instantiation of "ALTLVDS_RX_component" is connected to a signal of width 1. The formal width of the signal in the module is &lt;number_of_channels&gt;.  The extra bits will be left dangling without any fan-out logic.

    The ALTLVDS_RX megafunction in the Quartus® II software version 10.0 does not correctly create the required number of output ports for rx_cda_max.  This port should have a width equal to the number of channels.

    To work around this problem open the HDL variation file of the ALTLVDS_RX megafunction in your design and manually edit the port width of rx_cda_max and any sub_wire buses connected to rx_cda_max.

    The port width should follow the format of [number_of_channels-1:0].

    Resolution This problem is fixed in the Quartus II software version 10.1.

    Related Products

    This article applies to 5 products

    Arria® II GX FPGA
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