摘要
本数字示波器以FPGA和ARM9(S3C2410)为核心芯片,由输入信号调制、触发控制、数据采集、数据处理、波形显示和操作面板等功能模块组成;既具有一般示波器实时采样的功能,还具有等效采样和预触发的功能;在显示上以LCD触摸屏的方式,通过ARM9与FPGA的通讯能在LCD800×480上显示被测信号的频率和扫描速度等;设计中采用模块化设计方法,并使用了多种EDA工具,提高了设计的效率。
This digital oscillograph used FPGA and ARM9 （S3C2410） as its core chip, including channel introduction process, trigger controller, data sampling, data processing, waveform display and operating panel. It not only has the function of real--time sampling, but also has the function of real time sampling and pre trigger control. It use LCD and touch screen to display. Through the communicate between FPGA and ARMg, the frequency and rate can be displayed on LCD800×480. The system applied modularization design method and used manifold tools of EDA, which make the design more efficient.
出处
《计算机测量与控制》
CSCD
北大核心
2010年第3期575-576,579,共3页
Computer Measurement &Control
基金
国家自然科学重大基金项目(10890095)
广东省工业攻关计划(2005B10101042)
关键词
数字示波器
实时采样
等效采样
A/D
D/A转换
触发控制
digital oscillograph
real--time sampling
equivalent time sampling
A/D, D/A converter
trigger control
