The first thing to know is that Verilog is not a programming language. It is a hardware description language. This may sound picky, but it fundamentally changes the way you need to think about using the language. With Verilog/VHDL/HDL, you describe a circuit, which requires very different thinking to programming languages where you describe a sequence of instructions.
The other thing to know is that HDL languages are mostly the domain of electrical engineers and hence have suffered a lack of any "computer science" in them. The languages and all of the tools are clunky and reminiscent of 1970/1980's style programming when CS and EE diverged. Hence, do not expect to find decent online tutorials or freeware source code available. It's all locked up and proprietary as with all other EE tools.
To make either of these useful, you will need a hardware platform and some tools to play with. The DE1/2 is a reasonably priced entry board with plenty of lights, switches and peripherals to play with at a reasonable cost and is well matched with the text books above.
The other thing to know is that HDL languages are mostly the domain of electrical engineers and hence have suffered a lack of any "computer science" in them. The languages and all of the tools are clunky and reminiscent of 1970/1980's style programming when CS and EE diverged. Hence, do not expect to find decent online tutorials or freeware source code available. It's all locked up and proprietary as with all other EE tools.
The best place is to start with a text book, this one (http://www.amazon.com/Fundamentals-Digital-Logic-Verilog-Des...) is a nice introduction to digital design with examples from Verilog.
Personally I prefer VHDL, and this fantastic introduction (http://www.amazon.com/Circuit-Design-VHDL-Volnei-Pedroni/dp/...)
To make either of these useful, you will need a hardware platform and some tools to play with. The DE1/2 is a reasonably priced entry board with plenty of lights, switches and peripherals to play with at a reasonable cost and is well matched with the text books above.
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=E...