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Altera_Forum
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15 years ago

Can i make relative delays in timequest (9.1)

Hi I am still fairly new to timequest sdc and tcl. I need to check relative delays instead of absolute delays i a design that does high speed samling of an input pin. (There is no relation be...
Altera_Forum's avatar
Altera_Forum
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15 years ago

Perfect

Thanks a lot Rysc this is just what I need. I tryed it in 9.1 TQ gui and it works there.

The set_max_skew is not shown in the GUI. So therefore I could not find it myself.

I can find it in help now I know the name. It is part of a sdc extention package, Altera specific I guess, that I did not know about. The fact that is does analyze for subcorners inside the main slow/fast corner is exactly the real world that I need to know about. ( The absolute delay difference between fast and slow corner is about 10 times higher and will never appear in the real world. So I can only dream about one more think?

Does the fitter use the set_max_skew to minmize the skew ?