I am working on a design with a De0 nano board, and I am having problems with getting pins to work. Quite a number of pins are working OK, but others dont output. In particular, pins A12, T13, R13, T12, do not work. I have rerouted the internal signals to other pins and they work, for instance the signal to A12 was rerouted to C9, and then works fine.So, a couple of questions. 1/ Are all the pins on the 40 pin expansion headers dedicated to the headers, or do they have other functions? 2/ I presume all pin assignments as shown in the latest version of the user guide are correct? 3/ Is there some other way of setting up pins apart from the pin planner? Everything in there seems to be correct. I am also having problems with Quartus, including the verbal garbage that the reports spew out. I put in two pins and although they were in the .BDF drawing, and I could partly assign pins in the pin planner, and the pin names would appear in the .BDF drawing, on compilation the compiler would not recognise these pins and gave a message that the nodes were not in the .BDF drawing!! I hand edited the .V file that the compiler generates, and got the pins to appear. All very frustrating! Any help gratefully received.
Just found an html document in the Terasic stuff, it appears that A14 might be wrong, should be N14. I'll check it and report back. A couple of other pins are not the same in this document as the user guide. Hmmmm.