Handheld Oscilloscope Number Of Software Technology Research

With the development of domestic and foreign instrumental technology, the digital storage oscilloscope (DSO) has already been one of the indispensable instruments in modern testing field. Handheld Scope-meter not only inherits the measurement functions of traditional digital storage oscilloscope, but also has the function of digital multi-meter. It is small, light weight, easy to carry, low power consumption and built-in lithium battery supply, particularly suitable in the field, mobile and other occasions, so it can meet the harsh using environment of the precise site measurement.This paper designs the software based on the 1GSPS Handheld Scope-meter, which is developed in the Visual DSP++ 5.0 environment, basing on the framework of ADSP-BF531 and FPGA. The specific contents of this thesis are as follows:1. Introduced the developing situation of domestic and foreign oscilloscope, and the software and hardware design process of Handheld Scope-meter. According to the characteristics of Handheld Scope-meter, propose several software technical problems.2. Discussed the Graphical User Interface of Handheld Scope-meter, realized the display and control of main-menu and pop-menu structure, finally achieved the goal of saving and loading the user-defined interface color style.3. Studied the language character encoding and multi-language font library. Realized the design of multi-language font library and the dynamic loading, decreases the spending of the storage resource of font, and easy to use the USB update function to add multi-language pack.4. Completed to the display interface of multimeter mode, by studying the trend graph, implemented the design method to record and describe the variation of the measurement data with trend graph, where users could broaden the trend graph by needs.