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Old 05-24-2006, 10:03 PM
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Default XdmHelpers:662

I am currently using ISE 8.1 and am receiving this message after
entering a clock period constraint:

WARNING:XdmHelpers:662 - Period specification "TS_U1_gen_clk1"
references the
TNM group "U1/gen_clk1", which contains both pads and synchronous
elements.
The timing analyzer will ignore the pads for this specification. You
might
want to use a qualifier (e.g. "FFS") on the TNM property to remove
the pads
from this group.

This clock (2 Khz) is generated using a counter and is internal to the
device. What is the correct way to specify the qualifier so this
warning goes away?

Thanks,
Joel

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