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Altera_Forum's avatar
Altera_Forum
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16 years ago

how to fix this warning.

I got warning message from Quartus, don't know what its mean, the code works fine. just want to understand it. thanks Warning: At least one of the filters had some problems and could not be m...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

correct.

could it be that you use an ip where one output is not connected or an input is connected to vcc or gnd. in that case it could be that the synthese removes this pin but one of the sdc files has a contrain for it. due to the removement by the synthese this sdc constraine can not be matched.