基于FPGA NiosⅡ的信号发生器设计  

Design of signal generator based on FPGA NiosⅡ

作　　者：王宏军[1] 王航宇[1] 

机构地区：[1]西安航空职业技术学院电子工程系,陕西西安710089

出　　处：《国外电子元器件》2008年第10期54-56,共3页International Electronic Elements

摘　　要：介绍一种应用Nios Ⅱ嵌入式处理器的可编程片上系统(system-on-a programmable-chip,简称SOPC)技术来实现信号发生器的设计方案。该系统以Altera公司的Cyclone系列现场可编程门阵列(FPGA)为数字平台,将微处理器、总线、存储器和I/O接口等硬件设备集中在一片FPGA上,并利用数字调制技术使系统得到了正弦波、方波和三角波等。通过FPGA中双口RAM的数据读写产生波形,再充分利用片上资源,提高系统的精确度、稳定性和抗干扰性能。This paper describes the implementation of signal generator based on SOPC technology Nios II embedded processor.This system selects Cyclone series FPGA as a digital platform,connects the MCU,bus,memory and I/O interface and makes them integrate into a FPGA chip, and uses the digital modulate technology to generate sine wave, squarewave, triangular wave.Through the FPGA and dual-port RAM,the data is transmitted to achieve waveform.With using the chip resources, the precision, stabilization and anti-jamming are significantly improved.

关 键 词：发生器/处理器 嵌入式系统 现场可编程门阵列 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]