Abstract循序电路第一个应用是拿来做计数器((笔记) 如何设计计数器? (SOC) (Verilog) (MegaCore))，有了计数器的基础后，就可以拿计数器来设计除频器，最后希望能做出能除N的万用除频器。-Abstract The first application of sequential circuits are used to make counter ((notes) How to design a counter? (SOC) (Verilog) (MegaCore)), with the basic counter, you can use to design counters in addition to frequency, the last hope can make in addition to ten thousand with the exception of the N frequency.