基于CVI任意波形发生器的整体设计  

Integrated Design of Arbitrary Waveform Generator Based on CVI

作　　者：张梦麟[1] 李念强[1] 

机构地区：[1]济南大学信息科学与工程学院,济南250022

出　　处：《自动化仪表》2007年第12期32-35,共4页Process Automation Instrumentation

基　　金：济南大学实践教学研究项目(编号:SJ0410)

摘　　要：利用LabWindows/CVI虚拟测控软件具有的超强实时数据采集和处理能力以及丰富的图形用户界面设计功能,开发了一个任意波形发生器编辑软件系统。介绍了一种用AVR系列单片机ATmega8来控制FPGA实现的DDS电路,并用SRAM取代ROM中的任意一种波形信号发生器硬件的设计。用这种方法设计的波形发生器结构简单、造价成本低,且信号源输出信号的分辨率高。By adopting the superior powerful capability for real-time data acquisition and data processing, as well as the rich GUI design functions provided by LabWindows/CVI virtual measurement and control software, an editing software system of arbitrary waveform generator is developed. The hardware design method of an arbitrary waveform generator is introduced, by which, the DDS circuit is implemented by controlling FPGA with ATmega8 single chip computer of AVR series, and replacing ROM with SRAM. The structure of the generator designed with this method is simple and low cost, in addition, the resolution of the output signal from the source is very high.

关 键 词：波形发生器 信号源 单片机 抽样数据 直接数字频率合成 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]