利用vhdl语言控制蜂鸣器发出指定频率的音律.-by means of vhdl ,to tell us how to control beeper to produce designated frequencies sounds.

用VHDL实现的双人飞机大战。支持PS/2和蜂鸣器。 需要两个CPLD核心协同完成。 含最终效果视频-Multiplayer air fight implemented in VHDL. PS/2 and beeper supported. Two CPLD cores are required to run this demo. Final video includes.