用VHDL语言实现多首音乐播放，并可切换，内含两首音乐。-VHDL language used to achieve more than the first music player, and switch, includes two music.

利用VHDL语言编写的实用的多模式显示的流水灯，它工作的频率手工可选，显示模式手工可选也可以自动切换。-Using VHDL language and practical multi-mode display of water lights, it works hand-selectable frequencies, selectable display mode can be automatically switched manually.

Verilog语言编写，VGA显示图片自动切换程序。图片显示为哆啦a梦的多幅图片切换。通过字符显示图像。-Verilog language, VGA display picture automatically switching program. Pictures appear as a dream duo toggle multiple images. Through the character display images.