基于FPGA的等精度数字频率计的研究与实现

Design and Realization of Equal-precisions Digital Frequency Meter Based on FPGA

本文提出了一种基于等精度测频原理的频率计,给出了一种基于FPGA的设计方案。在QuartusII开发软件环境下,采用硬件编程语言VHDL,实现了数字频率计的设计。经过仿真并下载验证,能够实现等精度测频功能,频率测量范围1～9999kHz,精度为10-4。

This article has raised one proposal of the frequency meter based on the equal-precision frequency measurement principle. Giveing one proposal based on the FPGA, and given one proposal based on the FPGA. It has realized the design of the digital frequency meter under the QuartusⅡ development software environment, using hardware programming language VHDL.After the simulation, and downloads the confirmation, can realize equal-precision frequency measurement functions.Frequency measurement scope is 1-9999kHz, and the precision is 10-4.