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Altera_Forum's avatar
Altera_Forum
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15 years ago

Design not Fitting in LogicLock Regions

Hi. I am having a trouble with LogicLock Regions.

I compile the Design first with the LogicLock Regions, set to Auto and Floating.

Then once it fits correctly. I change it to Fixed.. and start again..

This Time Quartus says that the Region is too small to fit the design into it.

How can this be true? if it was Quartus the one who determine the size of it on the previous Run?

has any one had this kind of problem?

Thankyou!

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    is your region's location the same as when Quartus placed it? a column of DSP blocks will leave you with fewer LEs, for example

    if everything checks out i would open a service request and file a bug report. in the mean time can you increase the size of the region slightly to get it to fit?