Four-channel Digital Oscilloscope Interactive Interface Software Design

We do a research on the project of Four-Channel DSO. The main content is the design principle of an interactive system based on four-channel digital oscilloscope designed to adapt to Human-Machine Interface software.A harmonious and friendly Human-Machine Interface System needs both software and hardware support. This dissertation explains how to establish a Human-Machine Interface System on Four-Channel DSO.Display module. Configure LCD screen's interface so that it can display the image in the best result. Design the size of each display according to the valid size of LCD. In the waveform display area, design of different styles, including the expansion window, the double time base window and the XY window.Menu module. Design tree structure menu; use control function to make the menu for the pop display, control functions including return function, from the pop menu return to a top menu; set pop menu function, from the top menu to the pop menu; When a user selects a function keys, the button response, to achieve the user's choice of Oscilloscope's function.Graphical characters module. This module includes design and load the icon and characters. According to the design principle of graphic and characters, in this dissertation, design icon and characters adapt to four channel digital oscilloscopes. package character graphic into binary file which can be called by main function, he binary file can be easily saved and loaded.Finally The Human-Machine Interface design of the software testing and maintenance. In the test, reflects the "user-centered" usability testing, and summarize testing results. In the latter part of maintenance, introduce function perfect and code improvement of the four channel digital oscilloscopes, makes oscilloscope has a long life cycle, achieve the goal with maintainability.