基于FPGA的多功能频率计的设计  

Design of multi-functional frequency meter based on FPGA

作　　者：李卫兵[1] 李道通[1] 胡波[2] 王彩凤[1] 

机构地区：[1]滨州学院物理与电子科学系,山东滨州256603 [2]滨州学院飞行学院,山东滨州256603

出　　处：《电子设计工程》2012年第20期164-167,170,共5页Electronic Design Engineering

基　　金：滨州市科技发展计划项目(201004)

摘　　要：基于Altera公司FPGA芯片EP2C8Q208,嵌入MC8051 IP Core,用C语言对MC8051 IP Core进行编程,以其作为控制核心,实现系统控制。在FPGA芯片中,利用Verilog HDL语言进行编程,设计了以MC8051 IP Core为核心的控制模块、计数模块、锁存模块和LCD显示模块等几部分,实现了频率的自动测量,测量范围为0.1Hz^50MHz,测量误差0.01%。并实现测频率、周期、占空比等功能。This design is based on Altera＇s cyclone II series FPGA,and used Verilog HDL hardware description language as a tool for the design of digital frequency meter.with its core as a system control,the MC8051 IP Core embedded in FPGA chip,using C language programm on the MC8051 IP Core;in the FPGA chip using Verilog HDL programming language designed the MC8051 IP Core,counting modules,latching module and LCD display modules and other parts and realized the automatic measurement of frequency,namely： adaptive regulation,measurement range 0.1 Hz to 50 MHz,measurement error is small.Enables measurement frequency,period,duty cycle and other functions.

关 键 词：FPGA IP CORE 等精度测频 LCD VHD 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]