数字频率计设计与实现

EDA is the development trend of electronic design technologies, designers can replace the use of EDA tools for the design of electronic systems to complete most of the work. This rapid development of technology in the EDA context, the use of FPGA devices designed a simple digital frequency meter. First EDA technology has simply introduced, and then on the VHDL language and FPGA devices Alto, a brief description of other, then the current frequency meter design in the application of the method of frequency analysis. This will be divided into five modules frequency meter design, and each of its described.