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AR# 17749

5.1i NGDBuild - NGDBuild fails on a subdesign that contains only wires/nets

説明

Keywords: NGDBuild, subdesign, submodule, wire, net

Urgency: Standard

General Description:
When I pass a subdesign/submodule that contains only wires/nets and no I/O buffers to NGDBuild, the tool fails, indicating that the design or module is empty. How can I ensure that this subdesign/submodule passes through NGDBuild without an error?

ソリューション

This is fixed in ISE 6.1i.

NGDBuild now issues a warning, informing users that the design does not contain any instances -- it no longer produces an error. Since the subdesign/submodule does not contain I/O buffers either, MAP will trim all the wire/nets. MAP produces an error to indicate that the design does not contain any logic or connections and, therefore, an empty design cannot be mapped.
AR# 17749
日付 03/06/2005
ステータス アーカイブ
種類 一般
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