Questa è una vecchia versione del documento!
Self training and courses (free!)
VHDL Tutorial: Learn by Example (by by W. Zhang, July 2001)
http://esd.cs.ucr.edu/labs/tutorial/
http://users.ece.gatech.edu/sudha/book/starters-guide/
YouTube lectures (playlists):
Digital Design VHDL (few minutes videos with nice examples!)
http://m.youtube.com/playlist?list=PL7kkolCtIBKLukrBsEDwKRTE64JvaJDhM