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AR# 8578

FPGA Express 3.3: Certain constraints imported to a design may not work (ignored)


Keywords: FPGA Express, constraints, import, ignored

Urgency: Standard

General Description:
Some constraints may be ignored after exporting constraints from an FPGA Express
project and subsequently re-importing the constraints. This problem has been
seen with setting the default slew rate to 'fast'.



This is due to a bug in the FPGA Express 3.3. If a new project is created and
constraints are not imported into the project, any Express constraints added to
this project will be exported to the design. This problem is fixed in version
AR# 8578
Date Created 02/09/2000
Last Updated 08/11/2003
Status Archive
Type General Article