| 基于AT89S52单片机的简易数字示波器设计 |
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| 引用本文： | 刘杨斌,刘其峰,华慧. 基于AT89S52单片机的简易数字示波器设计[J]. 现代电子技术, 2011, 34(14): 138-140 |
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| 作者姓名： | 刘杨斌 刘其峰 华慧 |
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| 作者单位： | 南京信息工程大学电子与信息工程学院,江苏,南京,210044 |
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| 摘 要： | 介绍一种双通道简易数字示波器的设计方案，以AT89S52单片机作为控制核心，输入信号在经过预处理电路处理后，通过高速A／D转换器ADC0809，实现信号的实时采样、数据处理、存储并在液晶上显示，并用键盘做功能设置。该设计创新地实现了波形的存储／回放、双通道信号实时对比分析、程控放大提高灵敏度等方面。测试结果表明该系统稳定，具有测量频率高、波形清晰、可靠性高、成本低等特点，有很高的实用价值。
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| 关 键 词： | 数字示波器 AT89S52 预处理电路 ADC0809 实时采样 |
Design of a Simple Digital Oscilloscope Based on AT89S52 |
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| LIU Yang-bin,LIU Qi-feng,HUA Hui. Design of a Simple Digital Oscilloscope Based on AT89S52[J]. Modern Electronic Technique, 2011, 34(14): 138-140 |
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| Authors: | LIU Yang-bin LIU Qi-feng HUA Hui |
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| Affiliation: | LIU Yang-bin,LIU Qi-feng,HUA Hui(Nanjing University of Information Science and Technology,Nanjing 201144,China) |
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| Abstract: | A design proposal of simple two-channel digital oscilloscope is introduced.Taking the AT89S52 micro-controller as the control,processing the input signal by preprocessing circuit,and via a high-speed A/D converter ADC0809 to realize the real-time signal sampling,data processing,storage and display on the LCD and set functions by using keyboard.The design has been achieved a storage and re-display of waveform,comparison of dual-channel signal in real-time,and sensitivity improvement by program-controlled amp... |
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| Keywords: | digital oscilloscope AT89S52 preprocessing circuit ADC0809 real-time sampling |
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