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AR# 3706

Foundation 1.4, MAP: ERROR:basnu:93 - logical block <instance number> of type "OBUF" is unexpanded... when OMUX2 is used in XNF netlist

Description

Keywords: basnu:93, OMUX2, xnf, OBUF

Urgency: Standard

General Description:

In F1.4 if user uses an OMUX2 in an XC4000EX or XC4000XL schematic and exports the design to an XNF netlist, the following error will appear in the MAP stage of the
implementation:

ERROR:basnu:93 - logical block <instance> of type "OBUF" is unexpanded.
Errors detected in general drc.


Solution

Exporting the design to XNF file format is not supported for
XC4000XL and XC4000EX devices. Instead, use the default EDIF
(.EDN) flow.
AR# 3706
Date Created 03/30/1998
Last Updated 04/25/2000
Status Archive
Type General Article