| 基于FPGA的USB虚拟示波器 |
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| 引用本文： | 冯林,李莉,吴振宇,金博,王善坤.基于FPGA的USB虚拟示波器[J].仪表技术与传感器,2011(7). |
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| 作者姓名： | 冯林 李莉 吴振宇 金博 王善坤 |
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| 作者单位： | 1. 大连理工大学创新实验学院,辽宁大连,116024
2. 大连理工大学城市学院,辽宁大连,116024 |
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| 摘 要： | 介绍了一种基于FPGA和AD9224的USB虚拟示波器,该系统用AD9224实现模数转换；用FPGA实现多路开关、可变增益放大器、A/D和D/A的逻辑控制和内部FIFO高速缓存读写；控制D/A转换器实现自动换档；并通过直接控制CY7C68013A芯片实现采集板与上位机之间的USB数据传输；利用LabVIEW编写了上位机示波功能界面.该虚拟仪器系统实现了信号的采集、存储、传输、显示及信号处理,经实验测试性能稳定,能够满足便携性要求.
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| 关 键 词： | 虚拟示波器 AID9224 FPGA USB 高速信息采集 自动换档 |
USB Visual Oscilloscope Based on FPGA |
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| FENG Lin,LI Li,WU Zhen-yu,JIN Bo,WANG Shan-kun.USB Visual Oscilloscope Based on FPGA[J].Instrument Technique and Sensor,2011(7). |
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| Authors: | FENG Lin LI Li WU Zhen-yu JIN Bo WANG Shan-kun |
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| Affiliation: | FENG Lin1,LI Li1,WU Zhen-yu2,JIN Bo1,WANG Shan-kun2(1.School of Innovation Experiment,Dalian University of Technology,Dalian 116024,China,2.City Institute,China) |
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| Abstract: | This paper introduced USB visual oscilloscope system based on FPGA and AD9224.It realized analog-digital converter through AD9224.It implemented logic control of multipluxer,variable gain amplifier,A/D and D/A,and internal FIFO high-speed buffer memory through FPGA.It made full use of FPGA control functions to achieve auto shift control through D/A converter.The data transmission between data acquisition board and PC was realized by CY7C68013A chip,and controlled by FPGA directly.The human-computer interact... |
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| Keywords: | visual oscilloscope AD9224 FPGA USB high-speed data acquisition auto shift control |
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