Design And Implementation Of DPO7254 Program Control Digital Phosphor Oscilloscope Software

China electronic measurement technology has been rapid development in since twenty-first Century, new technology, new material, new manufacturing technology has spawned a new generation of electronic components, but also promote the electronic measurement technology and electronic measuring instruments produced a new concept and new development trend. The current development trend and direction are automation, measurement data acquisition and processing, real-time digital measuring system; standardization, modularization. Among them, fieldbus technology is the foundation and key technology of all test system, is the essential condition of modularization, standardization and automation. Need to test instrument used in the vast majority of support GPIB interface in daily experiment and testing, but the lack of automatic detection to realize interchangeable virtual instrument using the advantages of GPIB interface and IVI in the use of the process, in the aspects of engineering technology still needs to be accelerated further implementation and application.The subject of serious study and analysis of the interface specification of GPIB, digital phosphor oscilloscope system structure and other content, in-depth study of the driver using IVI technology to realize the design and implementation of GPIB interface based on the oscilloscope programmed software. According to the summary of the project requirements and preliminary experiment to realize the program control software was developed with VC++ platform and multi thread technology etc.. The specific contents are as follows:(1) the GPIB interface: this part deeply studies the GPIB interface part, an important feature of the GPIB, including the basic characteristics, various devices connected mode characteristics, bus structure, equipment capacity, address capacity, data transmission and message logic carried out in-depth research and study, fully understand the characteristics of GPIB interface, and lay a solid foundation for the subsequent development of programmable software.(2) digital phosphor oscilloscope and drive: this part deeply study the system structure of digital fluorescence oscillograph of current popular, mainly including amplifier, DPX imaging technology, analog to digital converter; at the same time, the development process of driver, especially IVI driver technology conducted in-depth research and study, understand IVI driver structure and the development of process technology.(3) the design and implementation of programmable software: this part uses the VC++ development environment, in accordance with the oscilloscope function of the modular design, including vertical system, level system, trigger system etc.. At the same time, design of the data acquisition, drawing and other functions of the multi thread technique, improves the efficiency of program control software and a good user use.This paper focuses on the three aspects mentioned above, in the last part according to the design and implementation of the content, analysis of the need to improve the part, and gives recommendations related to the specific.