You can modify clocks created by clocking wizard using Manage IP option from
IP_Manager sheet. To change clock frequency and other features, select the clock name
and click Edit.
Figure 1. XPE IP Manager
You can modify the clock you created using the Edit
Clock button in the clock sheet by selecting the clock name from the
Select Clock drop-down list and clicking
Edit. You can also modify clocks using the
Manage IP option from the IP_Manager sheet.