Re: TIG Constraint

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Martin Euredjian Contact options for registered users 's Avatar (by Gravatar) posted on
August 25, 2003, 8:47 pm
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the

Using:

// synthesis attribute TIG of <net_name> is "TRUE";

makes the error go away.  Is there a way to verify that the net is being
ignored for timing purposes?  The log says:

 Set user-defined property "TIG =  TRUE" for signal <signal_name>.

Being that the constraints guide does not list "TRUE" as a valid value I'd
like verification that the constraint is truly doing something useful.

Thanks,


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Anil Khanna Contact options for registered users 's Avatar (by Gravatar) posted on
August 25, 2003, 8:34 pm
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Re: TIG Constraint
Hi Martin,

TIG should work, if not, you could always try a MCP (multicycle path
constraint) if you know how many times your data is sampled.

Anil

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Martin Euredjian Contact options for registered users 's Avatar (by Gravatar) posted on
August 25, 2003, 10:35 pm
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Re: TIG Constraint
Sure, I could use multi-cycle in the UCF (or TIF, for that matter). For
maintainability (and reusability) purposes I wanted to include these and
other constraints with the HDL file.

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