EDA多级分频器图形设计，频器输入频率为10 MHz,输出频率为1 Hz。分频器顶层图形文件设计、例化模块图形文件设计。 -Multi-level divider graphic design, frequency input frequency of 10 MHz, the output frequency of 1 Hz. Divider top-level design of graphics files, for example, graphics files of the modu