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Altera_Forum
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17 years ago

Fast Corner estimation for older devices

I am mantaining a couple of old designs with devices from the FLEX families. Being familiar with newer families only, I wasn't expecting all the Quartus limitations when targetting these old de...
Altera_Forum's avatar
Altera_Forum
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17 years ago

Many thanks, Rysc.

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The addage I remember from around that time was, "compile for the fastest speed grade, then divide that number by 4". That's probably really pessimistic, but should cover all conditions.

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Dividing by 4 from the fastest speed grade sounds indeed a lot. This would mean that if I'm using the slowest speed grade, I would need to consider the best case being something in the order of, possibly 10 times shorter than the worst case ???