基于FPGA的DDS波形发生器的设计与实现,-DDS waveform generator based on FPGA Design and Implementation,

fpga很有价值的27实例 含有好几个比较实用的应用设计-fpga value of the 27 examples contain several more practical application design

含异步清零和同步使能的计数器的设计，可以实现计数，异步清零，同步使能等功能(The design of a counter with asynchronous zero and synchronization enables counting, asynchronous zero, synchronization and other functions)