@Ketan.
Yes, I "supossed" that it is possible to do, implementing a NIOS II processor, but I began to learn some about FPGA's three weeks ago. Maybe (I think) NIOS II is a quite advanced for me at this momment. Maybe later, now I'm dealing with Verilog programming, and a lot of things more.
@FvM.
Wow !, from your view point, I choose the poor way to begin with it....and yes, the Terasic code is not commented at all, and is very hard for me to understand somethings. (I thought was my "head"...)
So, taking both suggest, maybe I should have more patient, and continue reading and reading a lot of text's.
And about the SDRAM code, maybe would be better, to try with the core (that I comment before) downloaded from the Altera forum site (I can't found again that thread to name it here... but I've downloaded it), It is well explained & doccumented. If you want, or need it, to know what I'm talking about, I could upload it in this thread, please let me know.
Your both suggests were usefull & I appreciate them, thanks again.
Alberto.