本文選題：VGA + ARM　； 參考：《天津大學》2007年碩士論文

【摘要】： “嵌入式高分辨率VGA顯示系統(tǒng)”是一種嵌入式便攜式的VGA顯示設備。它可以在不使用計算機和VGA顯示卡的情況下,實現(xiàn)VGA圖像的顯示和控制。主要可應用于大型超市、車站、飛機場等公共場所的廣告宣傳和提示信息發(fā)布;也可以安裝在工廠車間,用于生產(chǎn)過程中的操作信息顯示;還可以開發(fā)成多媒體電子掛歷系統(tǒng)應用于日常生活。本文設計并實現(xiàn)了1024*768圖像(XGA)、800*600圖像(SVGA)和640*480圖像(VGA)三種分辨率圖像的顯示。 本文的主要任務是通過分析VGA顯示的基本原理和信號要求,設計整個系統(tǒng)的軟、硬件結(jié)構(gòu),包括VGA時序和顯存讀時序的發(fā)生,實現(xiàn)多媒體數(shù)據(jù)的存儲、JPEG圖像解碼、漢字和字符顯示、音頻信號輸出,以及通過EPP接口、以太網(wǎng)接口和串口實現(xiàn)系統(tǒng)的數(shù)據(jù)傳輸和遠程控制等功能。 本文的主要工作包括: 1.在深入分析VGA技術(shù)標準的基礎上,提出了嵌入式VGA顯示系統(tǒng)的總體設計方案和基本功能。 2、完成了嵌入式VGA顯示系統(tǒng)各單元的設計。采用CPLD等器件實現(xiàn)了VGA時序和顯存讀時序的發(fā)生;采用高速數(shù)模轉(zhuǎn)換芯片ADV7120完成了VGA模擬信號的輸出;采用ARM和DSP實現(xiàn)了系統(tǒng)的整體控制和數(shù)據(jù)處理。 3、采用了快速一維IDCT算法,實現(xiàn)了29次乘法和11次加法完成一次8位一維IDCT變換的功能,達到了JPEG圖像高速解碼的要求。 4、設計了VGA顯示系統(tǒng)的嵌入式軟件和上位機軟件。完成了基于以太網(wǎng)接口和EPP接口的數(shù)據(jù)傳輸和通信控制等功能。 本文的研究成果——嵌入式高分辨率VGA顯示系統(tǒng)板,經(jīng)過實驗證明其顯示效果和主要參數(shù)完全能夠滿足使用要求。
[Abstract]:The "embedded high resolution VGA display system" is an embedded portable VGA display device. It can display and control the VGA image without the use of computer and VGA display cards. It can be used in public places such as large supermarkets, stations, airports and other public places. The factory workshop is used to display the operation information in the process of production; it can also be developed into a multimedia electronic calendar system used in daily life. This paper designs and implements three resolution images of 1024*768 images (XGA), 800*600 images (SVGA) and 640*480 images (VGA).
The main task of this paper is to design the software and hardware structure of the whole system by analyzing the basic principles and signal requirements of VGA display, including the occurrence of VGA timing and memory sequence, the realization of the storage of multimedia data, the decoding of JPEG images, the display of Chinese characters and characters, the output of audio signals, and the implementation of the EPP interface, Ethernet interface and serial port. The functions of data transmission and remote control of the system.
The main work of this article includes:
1. based on in-depth analysis of VGA technology standards, the overall design and basic functions of embedded VGA display system are put forward.
2, the design of each unit of the embedded VGA display system is completed. CPLD and other devices are used to realize the occurrence of VGA sequence and memory sequence. The output of VGA analog signal is completed with high speed digital mode conversion chip ADV7120, and the system's overall control and data management are realized by ARM and DSP.
3, a fast one dimensional IDCT algorithm is adopted, which realizes the function of 29 times multiplication and 11 addition of 8 bit one dimensional IDCT transform, and achieves the requirement of high speed decoding of JPEG image.
4, the embedded software and PC software of the VGA display system are designed. The functions of data transmission and communication control based on Ethernet interface and EPP interface are completed.
The research result of this paper is the embedded high resolution VGA display system board, which has been proved by experiments that its display effect and main parameters can meet the requirements.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2007
【分類號】：TN27;TP273

【引證文獻】

相關(guān)博士學位論文 前1條

1 付連慶;微變形遙測雷達的研究與實現(xiàn)[D];重慶大學;2012年

相關(guān)碩士學位論文 前4條

1 萬凱;一種用于嵌入式的IBM VGA標準圖形控制器的設計與實現(xiàn)[D];中國艦船研究院;2011年

2 李維;基于ARM嵌入式系統(tǒng)的VGA接口的設計[D];大連海事大學;2012年

3 危斌斌;基于FPGA的自適應去振鈴濾波設計[D];華南理工大學;2012年

4 馬亞寧;微變形中頻接收機接口設計[D];重慶大學;2012年

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本文編號：2017483