The wizard has now added the System Clock Service to the project. However, notice that the wizard also added several other drivers and services. These are prerequisites for the System Clock Control service, and include the power management controller as well as some compiler utilities. The beauty of this is that the user does not have to worry about these dependencies; ASF will handle them automatically. Click the “Finish” button and the ASF wizard will copy the appropriate files and makes the necessary changes to the project.