Stratix II Pin Assignments

[Altera_Forum]

Hi! 

I'm trying to program a Stratix II and I've been having some trouble with the development kit. In Quartus II, I assigned the pins according to the Nios Development Board Stratix II Edition Reference Manual , but after I program the device, the red led turns on and after a few seconds, the "demo" program starts running and the factory amber led is on. The FPGA on the board is EP2S60F672C3N but I assigned in the software, the device EP2S60F672C3  Is there a problem? I don't think so because Quartus did not complain when I compiled and also when I downloaded the project into the FPGA, in fact, it even showed a message that the device was sucessfully programmed.  The problem, as I mentioned before, is with the error led and pin assignments.  Thanks in advance!

[Altera_Forum]

Hey! 

I have the same problem. I tried to program a simple logical port AND with SW0 and SW1 buttons and D0 led but the Error Led turned on and after a few seconds the Factory Config was program.  Thanks

[Altera_Forum]

try setting unused pins to input with weak pull-up resistor

[Altera_Forum]

Thanks a lot. 

I spend a month trying solve this problem.