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Altera_Forum's avatar
Altera_Forum
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8 years ago

TimeQuist analyzer

After compiling the design why always the timequist analyzer shows red color that means there is an unconstraint paths...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Hi,

Is your design purely combinational one or sequential (clocked)? If its combinational one, you need to specify the IO constraints, max delay, etc. If its a clocked design, you need to specify the clocks, false paths, multi-cycle paths, IO delays, etc.

Running the entire flow without specifying any constraints is akin to un-constrained synthesis and PNR, and can cause issues . Make sure you specify the design constraints in the SDC file or use the tool to specify it.