Category: Tool
Tools: Quartus® Prime Standard Edition 23.1, Quartus® Prime Lite Edition 23.1
Device: Cyclone® 10 LP, Cyclone® IV, MAX® 10

In Quartus® Prime Standard and Lite Edition 23.1, while creating or editing an ALTPLL IP
Clicking on the "Output Clock" tab causes the Wizard screen to crash.
This is a known issue and will be fixed in the next released version.

The workaround is as follows:

[Workaround]
Create or edit ALTPLL IP in an older version and upgrade to ver.23.1.
Here are the steps:

① Create a new ALTPLL IP with an older version of Quartus® Prime (for example, ver.22.1.2, 22.1.1, 22.1).
Similarly, if you edit the parameters of an existing ALTPLL IP, make the changes in an older version of Quartus® Prime.
　
② Move the generated ALTPLL IP file to the Quartus® Prime project folder for ver.23.1.
　
③ Open the project in Quartus Prime Standard (or Lite) Edition 23.1,
Register the ALTPLL IP generated by File menu > Add/Remove Files in Project to the project.
The message "IP Upgrade recommended." appears at the top of the Project Navigator window.
　
④ Click the "Launch IP Upgrade Tool" button.

⑤ Select ALTPLL IP from the IPs registered in the project and click the "Perform Automatic Upgrade" button.

⑥ The file will be automatically updated for ver.23.1.