Altera_Forum
Honored Contributor
10 years agoCyclone IV EP4CE6E22C8N
Hello. I am going round and round in circles trying to program a Cyclone IV EP4CE6E22C8N on a mini board. I get the message:- "Error (169057): Can't place I/O pin clk at pin location 24 -- I/O pin uses weak pull-up, which is not supported by this pin location". My board has a 50Mhz clock at pin 24. If I set week pull-up off I get errors:- "Error (169187): Following feature(s) of I/O pin ~ALTERA_ASDO_DATA1~ has invalid setting(s) in the configuration scheme ACTIVE_SERIAL when the pin is placed at pin location 6 Info (169189): I/O feature 'Weak Pull Up' has an invalid setting. The setting should be ON." for four pins I am not using.
Apologies if I am missing something obvious..