Design Of Digital Oscilloscope Based On Embedded System

The concept of virtual instrument was proposed in the 1980 s which has caused an uproar in the field of instrument testing. Virtual Instrument with its advantages compared to traditional instruments, is agreed by more and more people and used in various fields associated with the measurement. As an important part of virtual measuring instruments, virtual oscilloscope will have broader prospects for development with the advantage of convenient, fast, small size and so on.Since the United States National Instruments produced the first digital oscilloscope of the world, virtual digital oscilloscope technology has received high attention in the field. And with the rapid development of electronic measurement technology, more and more people set foot in the digital oscilloscope field which promotes the rapid development of virtual digital oscilloscope technology. China began to get involved in the field of virtual instrument technology in the mid-90 s, the development of our country is quite shocking though the start is late. In addition to specialized in the production of oscilloscopes driven by manufacturers, domestic research institutes and universities in the relevant areas of research also an important reason for the Rapid Development of Virtual Instrument Technology.The main topic of the research is the design of digital oscilloscope based on the embedded system with hardware and software combination, highlighting the strengths in the whole system. The main work includes conditioning the external signals by hardware converting the signal into a code for ARM microcontrollers and FPGA by A/D converter sampling the signal by programming transmitting by serial communication and the results being presented in the form of waveform.In the end of the essay, the comparison between the input waveform and the output waveform and two-channel waveform test results are given. Through the overall test system. The system meets the design requirements, through the results analysis. And complete the expected indicators.