| Digitizer with wide bandwidth and high resolution is a kind of digital signal instrument which has the function of high speed and high resolution data acquisition, as well as the ability to transfer and store large amount of data in a quite small amount of time. The digitizer can be integrated in the high speed electronic insreument such as the radar and digital communication.The kind of digitizer with high accuracy, high resolution data acquisition and the agile UI plays the indispensable role in the consumer electronic, communication, and semiconductor industry.This dissertation studies how to analyse the requirement and program the application program of the high speed digitier. The whole software of the digitizer has three parts, and these are device driver, Dynamic Link Library (DLL) and the application program.In Window XP OS, we encapsulate the universal fuction of digitizer to DLL which is very useful for the programmer of the application program.The user uses the application program to control the high speed digitizer to implement any operation concretely.The application program needs to show the whole function of the digitizer and to consummate the practicably value by itself. According to the whole designing of the digitizer, this dissertation introduces some requirements analysis about the application program, such as acquirsition, channel, trigger, clock, store and display.Because application program have direct connection with the DLL, this dissertation has a simple introduction about how to device the DLL, how to use the DLL in the application programm and the basal rules about designing User Interface. Under analysing the specific requirements of the digitizer and the hardware system, the dissertation explains how to design the application program of the digitizer particular about displaying the signal, controlling function and extending function. At the end, the testing and debugging of the application program of the digitizer are disscused. |
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