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NGDBUILD (csttrans) M1.1.1A: ERROR:0 - Could not find INST(S) <signal name> in design


Record #1900

Problem Title:
NGDBUILD (csttrans) M1.1.1A: ERROR:0 - Could not find INST(S) <signal name> in design


Problem Description:
Urgency: Standard

General description:

The use of an instance constraint to constrain an IO location in the
ucf file such as:

INST "Q_CORR_IN<15>" LOC = "P189";

Will cause the following errors in ngdbuild:

ERROR:0 - Could not find INST(S) Q_CORR_IN<15> in design peak832.
ERROR:0 - INST entry is INST "Q_CORR_IN<15>" LOC = "P189";


Solution 1:

This can happen when csttrans is used to convert a cst file that has IO
Locations in it, to a UCF file. The csttrans assumes that any "place
instance" constraint in the cst file should be an "INST" constraint in
the ucf file. The valid syntax for IO locations in a ucf file is a
"NET" constraint.

For all IO location constraints in a ucf file use the following syntax:

NET "Q_CORR_IN<15>" LOC = "P189";

If the ucf file was created by csttrans, then the ucf file will need to
be manually edited. See also Soln# 1604.




End of Record #1900 - Last Modified: 04/09/97 15:47

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