VHDL的一些实验代码，其中有4位可逆计数器，4位可逆二进制代码－格雷码转换器设计、序列检测器的设计、基于ROM的正弦波发生器的设计、数字密码锁的设计与实现-Some experiments of VHDL code, which has four reversible counters, four reversible binary code- Gray code converter design, sequence detection

Design, ROM-based sine wave generator design, digital design and implementation of lock