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Altera_Forum's avatar
Altera_Forum
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7 years ago

Maximum inputs per LAB

Can't find this documented anywhere. Is there a cap on the total number of signals that can be routed into a single LAB? Take Cyclone V, to be specific. From the datasheets, I was under the imp...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
7 years ago

A better solution is to first look at your timing constraints and timing reports. Can you post your .sdc file and the report on the path that is failing timing? Then based off of that, you make choices for optimizing the design, either flipping switches for how synthesis and the Fitter work or adjusting your HDL. Manual location assignments should be your absolute last resort.