Any recommended documents or video lecture for embedded programming learn.

Hi, I am a beginner in embedded programming and now try to learn it using Nios soft core or SoC FPGAs (ARM). I just wonder whether Altera provides documents or video lecture which are good for beginner (nearly 0 embedded programming experience)? I prefer documents or video lecture which focus on software development, if they can show some demos how to develop simple project step by step, that will be perfect for me. If the demo is relevant to how implement the high-speed peripheral like ethernet, USB, that will be even better.