System clock frequency

Clock Tree Synthesis is important in the backend-end design of chip design, and the clock skew has become the major part of constraints that limit system clock frequency.

时钟树综合是芯片后端设计至关重要的一环，时钟偏差成为限制系统时钟频率的主要因素。

Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.

固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。

And it presents a efficacious method to enhance precision of real time control, which changes value of clock interrupt frequency by changing divided frequency of system tinier.

同时给出了一种提高实时控制精度的有效方法，即通过改写系统定时器的分频值达到改变定时器时钟中断频率的值。