模擬實驗測試平臺的設計與開發

論文字數:8636,頁數:23

摘  要
本文實現了模擬實驗的虛擬測試平臺，為實現模擬器件測試平臺的功能，采用VC++可視化編程技術及DLL動態連接庫的技術。具體實現的功能有：加載DLL庫、對DLL庫內的函數的調用、讀取信息、畫出器件圖、對管腳施加信號、施加連續信號。其中加載DLL庫時采用的是運行是動態加載；對DLL庫中函數的調用是采用在基類中設置虛函數接口，再通過該類對象指針調用這類里的虛函數來實現對派生類中的函數的調用的思想來實現。該平臺具有的這些功能能夠滿足不同器件的測試需要。文中還簡略介紹了虛擬實驗平臺的現實意義、DLL庫技術、VC++可視化編程環境以及編寫模擬平臺時所遇到的一些難點，其中DLL動態連接庫的加載，DLL庫中函數的導出比較難理解，其實現方法在本文也有所介紹。
關鍵詞：虛擬實驗平臺；DLL動態連接庫；VC++可視化編程

The Design and Develop Of Virtual Experimental Testing Platform
Abstract
This paper presents the simulation of virtual test platform, to achieve the functional of Analog Test Platform, the VC++ visual programming technology and DLL Dynamic Link Library Technology have been used. The concrete realization function includes: Loading the DLL , the right bank of DLL function call , Reading information , painted map devices, imposing signals to the pin, the infliction continuous signal . And  Loading DLL is used in the operation of dynamically loaded，DLL library of function calls is used in the base class function to set up virtual interface，then indicators such objects such Lane called the virtual function to achieve the right type of derivative function call to realize the idea. The function of the platform can meet the different needs of the test. The paper also gave a brief description of the significance of the virtual experimental platform, DLL library technology, VC++ Visual Programming Environment and some difficulties in the preparation of a simulation platform, the Loading of DLL Dynamic Link Library and DLL library function derived more difficult to understand, The methods of their realization in this paper has been introduced.
Keywords: Virtual Experimental Platform ; DLL Dynamic Link Library ; VC++ Visual Programming  

目錄

1 引言 1
1.1 課題背景 1
1.2 虛擬實驗平臺 1
2 開發工具的選擇 1
2.1 開發工具的確定 1
2.2 開發環境 1
3 需求分析 2
3.1 DLL簡介 2
3.2 DLL中有些什么內容 3
3.2.1 DLL 的優點 3
3.2.2 DLL的依賴項 4
3.2.3 DLL的不同類型 5
3.2.4 DLL 的函數調用 5
3.2.5 DLL相關概念 6
3.3 項目要求 7
3.3.1 指定DLL庫的加載 7
3.3.2 DLL庫內函數的調用 7
3.3.3 讀取器件信息 7
3.3.4 施加高低電平信號 7
3.3.5 信號的連續施加 7
3.4 項目難點及解決方法 7
3.4.1 DLL庫的加載 7
3.4.2 DLL庫內的函數調用 7
4 設計實現 8
4.1 指定DLL庫加載的實現 8
4.2 DLL庫內函數調用的實現 8
4.3 讀取器件信息的實現 8
4.4 施加單一信號的實現 9
4.5 信號的連續施加的實現 9
5 實現代碼及其效果介紹 9
5.1 程序效果介紹 9
5.2 主要函數介紹 9
5.2.1 對DLL庫進行裝載 9
5.2.2 讀取器件信息 10
5.2.3 顯示器件 10
5.2.4 對單一管腳施加信號 11
5.2.5 連續信號施加 11
5.2.6 鼠標操作 12
5.3 效果演示 13
6 課題改進方向及建議 14
結論 15
參考文獻 16
致謝 17
聲明 18