Simple pin assignments using text file

Pin assignments can be controlled using Tcl statements. Open your Quartus project and select Project->Generate Tcl File for Project, and then look at that Tcl script (the pin assignments start with set_location_assignment). The pin assignments can then be changed by issuing pin assignment statements in the Tcl console. If you cannot see the Tcl console, make it visible using View->Utility Windows->Tcl Console.

However, if you change the pin assignment you need to re-synthesize the design to make that change "stick".

If you could explain a little more clearly what you are trying to do, members on this forum can help.

Cheers,

Dave