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Published byZechariah Ansell Modified over 10 years ago
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22 Nov 20051 Digital Video Transfer (WP2)
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2 Digital Video Switch Unit
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3 Video Switch Subunit
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4 VIDEO HUB
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5 HUB Video Subsystem
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6 Changes in D1f: Video Switch Unit and Video Hub Technical Document v.0.4Document USB Connection updated System commands in a separate document Power Consumption added Power Consumption Other minor changes
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7 Digital Video Transfer research, D1e No changes in the document Tests have started 1: Gefen Cable extenderCable extender –based on MAX3815 cable equalizer circuit 2: Silicon Image test boardSilicon Image test board –based on SiI 7161 circuit, which has internal cable equalizer
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8 Preliminary cable tests and the results Test environment - Dell PC with DVI connector supporting 1200 x 1600 x 60Hz mode - ACER 20" 1600 x 1200 x 60Hz UXGA monitor - Nokia Monitor Test ProgramProgram Test 1 - Lindy (www.lindy.com) high quality cablecable - 15 m Super long distance cable - 10 m Super long distance extension cable - Result: 15 m cable worked well and 25 m (connected) also worked without any errors !! (Pict1, Pict2)Pict1Pict2
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9 Supported Display modes
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10 Test result 2 Gefen "DVI Super Booster" cable extender - 25 m above mentioned Lindy cables connected - 20 m lower quality cable (Clicktronic) Result: Worked well with both cables More margin with Lindy cable
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11 Test result 3 Silicon Image CP7169 Evaluation board as "cable extender" 25 m Lindy cable Result: Worked without erros with 25 m Lindy cables Lower quality Clicktronic cables were not tested because the evaluation board does not support the DVI-I connector
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12 Next tests to do Try to find out a way to do preliminary test with category (cat 6, cat 7) cables using RJ-45 connectors DVI – RJ45 adapters
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13 Video Switch Unit schematics, D2aschematics Page 1: Block Diagram Page 2: FPGA Page 3: Bus_A_Rcv, Page4: Bus_A_Tr Page 5: DVI_From_PC, Page6: To_Monitor Page 7: Control (microcontroller) Page 8: Bus_B_Rcv, Page 9: Bus_B_Tr Page 10: Power + To_Table_Unit
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14 25 ohms load Silicon Image has confirmed that their circuits work on 25 ohms loadload Reserved space on the PCB for DVI switch
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15 Video Switch Unit PCB, D2b Not yet finalised Mechanics issues
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16 Video Switch Unit FPGA, D2c VHDL code written and simulated place & route made meets time constraints –faster circuit, stepping 1 (Spartan 3E)
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17 Video Switch Unit SW, D2d Going on, Jere is doing Progressing well
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18 Tasks to do, WP2 Design Finalise PCB design CAT6 cable tests Video hub design Software for Video Switch Unit
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