基于FPGA数控信号发生器的设计

Design of the NC Signal Generator Based on FPGA

本文介绍了基于FPGA及DDS技术的信号发生器设计和实现。该设计采用CycloneⅡ系列器件EP2C35F484实现DDS波形产生电路、D/A转换器控制及与单片机接口等功能,用单片机STC89C58RD+进行频率控制字、相位控制字以及波形选择和频率输出显示等控制。

This paper presents a design of the numerical control signal generator based on FPGA and DDS.This system is designed by using Cyclone Series component EP2C35F484,which realizes wave circuits,D/A converter controlled and interfaces of MCU linked.The monolithic integrated circuit STC89C58RD ＋ controls keyboard and the liquid crystal display and realizes output of the phase word and the frequency word.