接着使用EDA技术，用VHDL语言完成了数字频率计系统的设计工作；
利用高速并行BCD数减法实现等精度数字频率计的设计
1·The digital cymometer is a kind of basic measuring instrument.
数字频率计是一种基本的测量仪器。
2·Digital cymometer is one of the important measurement tools in the field of modern electronic technology, it is also widely used in many other areas of the measuring instruments.
数字频率计是近代电子技术领域的重要测量工具之一，同时也是其他许多领域广泛应用的测量仪器。
3·This paper discusses the digital cymometer design principles by using EDA technology.
介绍了一种利用EDA技术设计的数字频率计。
4·There was greater improvement to it's time to design the design more outdated than before, made the digital cymometer have high accuracy and high-speed characteristic.
该设计比以前老式的设计有较大改进，使数字频率计具有高精度和高速的特点。
5·Cymometer gate circuit and by the time counter composition.
频率计由时间闸门电路和计数器组成。