一个基于VHDL的有效位为8位的频率计，可以精确测量输入信号的频率-VHDL based on an effective 8-bit for the frequency meter can be the accurate measurement of the input signal frequency

此为等精度数字频率计的设计，用单片机汇编语言和VHDL语言实现准确的频率采集功能。-This is the digital frequency meter accuracy, such as the design, with single-chip assembly language and VHDL language features accurately the frequency of collection.

这是一个频率计的源代码，用的是VHDL语言设计的，能够测量0-20KHZ的频率！-This is a frequency meter of the source code, using the VHDL language design, can measure 0-20KHZ frequency!