TIMING-2: Invalid Primary Clock Source Pin - 2021.2 English

Vivado Design Suite User Guide: Design Analysis and Closure Techniques (UG906)

Document ID
UG906
Release Date
2021-10-27
Version
2021.2 English

A primary clock <CLOCK_NAME> is created on an inappropriate pin <PIN_NAME>. It is recommended to create a primary clock only on a proper clock root (input port or primitive output pin with no timing arc).