基于单片机与FPGA的等精度频率计设计

Design of Equal Precision Frequency Meter with MCU and FPGA

利用准等精度测频原理,提出了一种基于单片机与FPGA的等精度频率计设计方案。该频率计的测频范围可达1Hz^40MHz,测量范围内频率测量的精度达到10-7。

This paper introduced the equal precision frequency measuring principle and put forward design scheme of the equal precision frequency meter based on MCU and FPGA. Its test frequency range is between 1 Hz ~ 40 MHz,and the frequency meter is 10- 7within the scope of its measurement precision.