本文關鍵詞：SM750 VGA顯卡調(diào)試軟件的設計及實現(xiàn)　出處：《哈爾濱工業(yè)大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 系統(tǒng)支持工具 顯卡調(diào)試軟件 Open GL接口 幀緩存架構

【摘要】：VGA顯卡作為通用顯示設備正逐漸成為計算機重要組成部分。在如工業(yè)控制、安防監(jiān)視、數(shù)據(jù)通訊、醫(yī)療成像等專業(yè)領域后端人機交互、數(shù)據(jù)分析及運算控制過程中,嵌入式總線VGA顯卡發(fā)揮著不可或缺的支撐作用。工控主機板、安防服務器、通訊云終端、醫(yī)療監(jiān)護儀等電子產(chǎn)品設計運行過程中出現(xiàn)顯示問題十分常見,如操作系統(tǒng)藍屏、顯示器無輸出、屏幕白屏、屏幕花屏、顯示器水波紋、設備反復重啟、應用程序死機。產(chǎn)品開發(fā)維護人員處理此類故障時,需要使用系統(tǒng)支持工具將設備狀態(tài)獲取,然后結合軟件提供的操作選項做故障環(huán)境模擬、顯示問題復現(xiàn)、系統(tǒng)功能運行、芯片邏輯驗證、顯卡參數(shù)調(diào)整、測試結果確認,最終技術問題解決。為滿足上述生產(chǎn)需求,本文整理顯示相關問題,以SM750 VGA硬件平臺為基礎,基于Linux開發(fā)環(huán)境在操作系統(tǒng)中將圖形圖像輸出過程詳盡分解。分解后編寫顯卡調(diào)試軟件顯示功能單步運行,并將設備執(zhí)行狀態(tài)屏幕人機界面交互反饋。采用總線枚舉技術、地址映射技術及MMIO空間技術,在軟件中實現(xiàn)系統(tǒng)信息全面獲取、顯存內(nèi)容實時讀寫、顯示模式快速設置等功能。通過采用Open GL加速技術、幀緩存架構技術、色彩空間轉(zhuǎn)換技術及ZV信號疊加技術,在軟件中完成芯片邏輯逐一驗證。以本調(diào)試軟件程序編寫、代碼開發(fā)及文章介紹為基礎,工控、安防、通訊、醫(yī)療領域工程人員能快速準確找到產(chǎn)品設計、運行過程中問題所在。更能基于客戶使用需求做有針對性顯示參數(shù)修改、程序二次開發(fā)。軟件經(jīng)各操作系統(tǒng)詳細測試,滿足不同平臺調(diào)試要求。
[Abstract]:As a general display device, the VGA graphics card is becoming an important part of the computer. In the field of back-end man-machine interaction, data analysis and operation control, such as industrial control, security monitoring, data communication, medical imaging and other professional fields, embedded bus VGA graphics card plays an indispensable supporting role. Industrial motherboard, security server, communication terminal, cloud medical monitors and other electronic products design appeared in the process of operation shows that the problem is very common, such as operating system, screen display no screen output, white screen, screen flowers screen, display equipment, water ripples, repeatedly restart the application. Product development and maintenance staff to handle such a fault, need to use the system tools to support the device state acquisition, and then combined with the software provided by the operation option fault environment simulation, display reproduction, system function operation, graphics chip logic verification, parameter adjustment, test results confirmed that the final technical problems. In order to meet the above production needs, this paper organizes and displays related problems. Based on SM750 VGA hardware platform, based on Linux development environment, we will detailedly decompose the graphic and image output process in the operation system. After decomposing, the debug software of the developing card is written to display the function of the single step, and the device is used to perform the interactive feedback of the machine interface of the state screen. The bus enumeration technique, address mapping technology and MMIO technology, to achieve a comprehensive information system, real-time acquisition, write read memory content display mode fast setting function in software. By using Open GL acceleration technology, frame buffer architecture technology, color space conversion technology and ZV signal superposition technology, chip logic is verified one by one in software. Based on the debugging software programming, code development and article introduction, engineers in industrial control, security, communication and medical field can quickly and accurately find the problems in the process of product design and operation. More can be based on customer needs to do targeted display parameters modification, program two development. The software is tested in detail by the operating system to meet the debugging requirements of different platforms.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TP311.52;TP334.7

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