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Digital Video Transfer (WP2). Digital Video Switch Unit. Video Switch Subunit. VIDEO HUB. HUB Video Subsystem. Changes in D1f: Video Switch Unit and Video Hub Technical Document v.0.4. USB Connection updated System commands in a separate document Power Consumption added

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Digital Video Transfer (WP2)

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Digital video transfer wp2

Digital Video Transfer (WP2)

22 Nov 2005


Digital video switch unit

Digital Video Switch Unit


Video switch subunit

Video Switch Subunit


Video hub

VIDEO HUB


Hub video subsystem

HUB Video Subsystem


Changes in d1f video switch unit and video hub technical document v 0 4

Changes in D1f: Video Switch Unit and Video Hub Technical Document v.0.4

  • USB Connection updated

  • System commands in a separate document

  • Power Consumptionadded

  • Other minor changes


Digital video transfer research d1e

Digital Video Transfer research, D1e

  • No changes in the document

  • Tests have started

  • 1: Gefen Cable extender

    • based on MAX3815 cable equalizer circuit

  • 2: Silicon Image test board

    • based on SiI 7161 circuit, which has internal cable equalizer


Preliminary cable tests and the results

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 Program

  • Test 1

    - Lindy (www.lindy.com) high quality cable

    - 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)


Supported display modes

Supported Display modes


Test result 2

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


Test result 3

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


Next tests to do

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


Video switch unit schematics d2a

Video Switch Unit schematics, D2a

  • 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


25 ohms load

25 ohms load

  • Silicon Image has confirmed that their circuits work on 25 ohms load

  • Reserved space on the PCB for DVI switch


Video switch unit pcb d2b

Video Switch Unit PCB, D2b

  • Not yet finalised

  • Mechanics issues


Video switch unit fpga d2c

Video Switch Unit FPGA, D2c

  • VHDL code written and simulated

  • place & route made

  • meets time constraints

    • faster circuit, stepping 1 (Spartan 3E)


Video switch unit sw d2d

Video Switch Unit SW, D2d

  • Going on, Jere is doing

  • Progressing well


Tasks to do wp2 design

Tasks to do, WP2 Design

  • Finalise PCB design

  • CAT6 cable tests

  • Video hub design

  • Software for Video Switch Unit


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