I am connecting the output of the PLL directly to an I/O pin. I cannot constrain set_output_delay because it is a clock output. I would like to know the delay value of the clock output in TimeQuest, how can I check it?

Quartus Prime Timing Constraints/Analysis Clock/PLL

Software: Quartus®II (TimeQuest)
Category: Timing Constraint/Analysis


If you want to report the delay time of a specific path, you can check it with TimeQuest's Tasks window ⇒ Custom Reports ⇒ Report Path.

1) Double-click Report Path…
2) Click the … button to the right of the To column to launch Name Finder.
3) Set the upper left Collection to get_ports and put the pin name (* can be used) in Filter.
4) Click the List button.
5) Select the required I/O from the left column, move it to the right column with the > button, and click the OK button.
6) In Number of Report Paths, you can specify how many of the paths to the pins specified in Worst order.
7) Changing the Report panel name will change the name of the report so you can compare it with other Path Reports.
8) Check the Delay value.


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