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Altera_Forum's avatar
Altera_Forum
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10 years ago

Quartus Instantiated megafunction and then synthesized away

Hi, In my project i have instantiated more than one VHDL unit that realize a moving average filter. During Analysis and Synthesis i found that only for one i have the following info messages: ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Ok i found the problem. There was a comparator with the max and min thershold constant (generics) inverted (the max threshold was lower than the min threshold) so the comparation is not synthesizable. This caused a domino effect on the entire project.

Thanks to all for your help.