I have a project once had no constraint warning. Then I enabled dynamic reconfiguration ports for Transceiver toolkit.
Since then, every compile show unconstrained warning for:
Indeed, I have not specified anywhere about these pins. Similar source code in previous revisions when there is no such warnings.
In a newly created project, I have the same Unconstrained Paths warnings.
I am curious, do I have to constraint JTAG pins?