Pin and Logic Cell Assignments

• Make pin assignments only when necessary for board layout (as late as possible in the design cycle)

• Make pin assignments after performance optimization (see Resolving Performance Issues Section)

• Use the pinout selected by MAX+plus II during the most recent compilation, if possible

  • Under the Assign menu, select Back-Annotate Project, select Chips, Pins, & Devices, click OK
    • This will take the placement that MAX+plus II picked for the pins during the last compilation (.fit file) and assign them (in the .acf file)

• Avoid making logic cell assignments

  • Logic cell assignments will likely cause a design with later changes to not compile

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