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Research and Design of Video Conversion Interface Based on FPGA

Author: BaiZongYuan
Tutor: HuBaoXia
School: Harbin University of Science and Technology
Course: Applied Computer Technology
Keywords: Video Converter interface Verilog HDL I ~ 2C bus FPGA
CLC: TN791
Type: Master's thesis
Year: 2008
Downloads: 437
Quote: 7
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Abstract


With the rapid development of computer , multimedia and digital communications technology , on the one hand , the video technology to promote and facilitate , on the other hand also makes digital display interface between the interrelated issues have become increasingly prominent , however, in today 's market for digital interconnection the importance of the issue is not enough , between two different interface conversion equipment is still relatively rare . This paper details a FPGA-based design of video conversion interface , this interface is the main function is to achieve the conversion of NTSC video input signal . The interface circuit use ADV7181B chips performs decoding processing on the video signal being decoded the signal is ITU_R656 standard 8 - bit data signal . The system uses the FPGA as a development platform , by I2C bus configuration modules , deinterleaving the module cache module , color space conversion module and VGA timing conversion modules . Which cache design using progressive scan inside line insertion method for interlaced scan conversion , color space conversion pipeline technology ; the ADV7123 chip decoding , image display VGA monitor through the VGA control module . The main controller in this paper using Verilog HDL as a hardware description language in Quartus II 6.0, Modelsim SE 6.0 software platform development, FPGA programmable chip , so that the entire system has greater flexibility , not only to improve the digital the conversion speed of the interface , but also can easily use chip configurability to complete the online upgrade system maintenance, and enhance the value of the system .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Digital circuits > Logic circuits
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