奇数分频和倍频(只需修改参数就可以实现较难得基数分频和倍频)-Odd frequency and frequency-doubling (just modify the parameters can be achieved relatively rare sub-base frequency and octave)

在VHDL下实现锁相环的源码和说明文档.通常用于分频或倍频时进行相位锁定.-To achieve phase-locked loop in the VHDL source code and documentation. Normally used when the frequency or frequency-doubling phase locked.

时钟分频。使用原有高频信号，将其10倍频，得到可用于八段数码管显示的扫描信号-Clock frequency. The use of the original high-frequency signal, frequency-doubling of its 10, the eight can be used to display the scanned digital signal