Step 4: Rerun the Timing Analysis

To rerun timing analysis:

  1. Choose Start > Start Timing Analysis (Processing menu).

  2. When the Quartus II software asks whether you want to recompile before starting timing analysis, click No. The timing analysis runs without recompiling the design.

  3. NOTE The Quartus II software asks you if you want to recompile at this point because specifying timing requirements affects fitting when you are using timing-driven compilation. However, for this tutorial, recompilation is not necessary.

  4. When the Quartus II software informs you that the timing analysis was successful, click OK. Note that a message appears in the Messages window indicating that timing requirements were not met.


To continue the tutorial, proceed to Step 5: View the Clock Requirements Timing Analysis Section.