I am currently trying to use Quartus 18.0 IP Catalog suggestions to import a UART RS-232 block to set up this serial interface. I have set the clock domain and the output pin (using datasheet to DE0-CV board) but when I try to finish the UART setup by pressing "Generate HDL..." I get this error:
Error: rs232_0: The input clock frequency must be known at generation time.
How can I tell Quartus my clock frequency so that it could generate my UART module without errors?