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Altera_Forum's avatar
Altera_Forum
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17 years ago

newbie asks about "LATCH primitive ... is permanently disabled"

Folks, I have a DE1 (CycloneII starter board) to learn VHDL and Quartus. I developed and successfully tested my bit-shifting FIFO UART on the DE1. With this design functional, I'd like to move it ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Originally, in the settings dialog, I just changed the device family, from CycloneII to MAX3000 then recompiled, resulting in a couple hundred warnings. The RTL exposed unconnected components. Now that I've created a new project, no warnings, different part selected.

So in the future, to change device family should I quit Quartus and delete the db directory, launch Quartus and recompile? I didn't see a 'Clean Project' menu item anywhere.