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基于FPGA和ADV7123的VGA显示接口的设计和应用.pdf

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第29 卷 第4 期 电 子 器 件 V ol. 29 No. 4 2006 年 12 月 Chinese Journal of Electron Dev ices Dec. 2006 Design andApplication of VGA Display Interface Based on FPGA andADV7123 1, 3 2 1, 3 1, 3 1 D E N G Ch un-j ian , WA N G Qi , X U X i u-Zhi , FE N G Yong-M ao , ZH E N G X i-f eng 1. Changc hun In s i u e of Op ics , F ine M echanics an d Phy s ic s, Chi nese A cade my of S cience s, Chang chun 130033, Chi na; 2. Beij i ng Vacuum E lec r onics Resear ch Ins i u e , B eij i ng 100016, Ch ina; 3. G rad ua e S chool of he Chi nese A c ade my of S cience s, Beij i ng 100039, China Abstract: Complete or perfect display of digital image information on VGA interface display involved in construct of timing signal and image data DA converting. A design sc eme of VGA display interface is presented. M et od of digital image data DA converting and output to VGA interface display is given, w ic includes ardw are design, control of video DA converter, construct of VGA timing signal by FP- GA. T w o design met ods and tw o typical applications one is to display result of image processing, anot er is to aid for fore terminal video design, are given. T e sc eme can be w idely applied in instrumentation, digital video systems, ig resolution color grap ics, video signal reconstruction. Key words:FPGA; ADV7123; VGA display interface ACC:7260 FPGA ADV7123 VGA 1, 3 2 1, 3 1, 3 1 邓春健 , 王 琦 , 徐秀知 , 冯永茂 , 郑喜凤 1. , 130033; 2. , 100016; 3. , 100039 : VGA , , VGA , DA VGA , DA FPGA VGA , , , : FPGA; ADV7123; VGA :TP393. 11 :A :1005-9490(2006)04-1325-04 VGA , DA VGA : Hsync VGA , Vsync 3 SVGAXVGA 6
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