摘要
虚拟仪器概念的提出,给传统仪器带来了一次革命。结合嵌入式技术的运用,极大改变了数字系统固有的设计思路。基于单片机设计的应用系统功能更强,产品也更小巧。运用AT89S51和AD7520LN进行数/模转换,根据数/模转换的工作原理,设计实现数字信号发生器。设计友好的虚拟仪器人机软面板界面,进行各项参数的设置,并且通过RS232串行通讯完成单片机与PC机的数据交换。
The traditional instruments have changed greatly because the virtual instrumentation technology appears.The orginal methods of digital system design have also changed using the embedded technology.The application system based on sigle- chip microcomputer is powerful in function and small in size.A kind of digital voltmeter is designed through the digital-to-analogue converter AD7520LN.A good soft panel is designed in order for users to setup the signal parameters.Lastly, data exchange will be accomplished through the RS232 serial communication between sigle-chip microcomputer and PC.
出处
《电子技术（上海）》
2008年第1期25-28,共4页
Electronic Technology
