List of Messages |
CAUSE: The specified DDIO_OUT primitive has multiple fan-outs. This is not allowed. This error can occur if the "padio[]" port of the altddio_bidir megafunction or the "dataout[]" port of the altddio_out megafunction has multiple fan-outs.The "dataout[]" port of the altddio_out megafunction should only be connected either to an output pin or to an output I/O primitive. Similarly, the "padio[]" port of the altddio_bidir megafunction should only be connected either to a bidirectional pin or to a bidirectional I/O primitive (ALT_BIDIR_DIFF or ALT_BIDIR_BUF). This error can also occur if the "padio[]" port of the altddio_bidir megafunction is connected to an output pin.The "padio[]" port should be connected to a bidirectional pin (or a bidirectional I/O primitive).
ACTION: Fix the incorrect connections in the design and compile the design again.
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