Hacking the Xbox

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68 Hacking the Xbox: An Introduction to Reverse Engineering The step-by-step description in this chapter uses a breakaway replacement cable (available at any video game retailer), and the USB extension cord. If you want to use something different, see Appendix F, “Xbox Hardware Reference,” for the pinouts of the various connectors employed by the Xbox. Figure 4-1: (Left) an Xbox game controller extension cable. (Right) an Xbox breakaway cable. Figure 4-2: USB type A female connector.
Strategy Chapter 4 - Building a USB Adapter 69 When building the Xbox USB adapter cable, the basic idea is to cut the Xbox breakaway cable and the USB extension cable in half and to join the proper ends of the two cables. Fortunately, there is a standard wiring code for USB-compliant cables. Red is +5V power, black is Ground, White is Data (-), and Green is Data (+). In order to join the cables together, simply connect wires of like colors together. (Note that the Xbox cable will have an extra yellow wire that carries a copy of the composite video sync signal for use in light-gun type game interfaces. This extra yellow wire can be safely ignored.) This chapter will walk you step-by-step through connecting the wires and sealing the cable. Warning Implementation Some USB cable manufacturers do not comply with the standard USB wiring code. The most common deviation is reversing the white and green wires, although on rare occasion the color code is ignored outright. It is always a good idea to use a continuity meter to verify that your USB extension cable actually complies with the USB color code. First, cut the Xbox breakaway cable near (about 2") the Xbox connector end, and cut the USB extension cable near the female connector end. Discard the male half of the USB extension cable and the half of the Xbox cable with the smaller connector. Next, use the diagonal cutters to cut 1/2" slits into the insulation of each cable, as illustrated in frame 1 of Figure 4-3. Peel the insulation back to reveal the wires, which will be protected by a braided metal shield and some metal foil. Peel the metal braiding and foil back, and cut off the excess insulation and shielding. Strip the ends of the red, green, white, and black wires so that about 1/8" of bare conductor is showing. (Do not strip the yellow wire in the Xbox breakaway cable.) Dip the bare ends of the conductors into some solder flux. (See Figure 4-3.) If you are concerned about the robustness or safety of the adapter cable assembly, slip a 1-1/4" segment of heat shrink tubing onto one of the cables. (This tubing will later be slipped over the bare solder joints and filled with hot glue to make a robust connection.) The shielding is not mandatory, but the cable will not be as robust without the heat shrink reinforcement; it will be susceptible to breakage if subjected to repeated bending or straining. Continue the cable building process by soldering together wires of like colors, as shown in Figure 4-4. Have a friend help you hold the cables in place while you solder them, or use a “third hand” tool (Jameco order
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In memory of Aaron Swartz
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CHAPTER 8 Reverse Engineering Xbox
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APPENDIX D Getting Started with FPG
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APPENDIX F Xbox Hardware Reference
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Appendix F - Xbox Hardware Referenc
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Appendix F - Xbox Hardware Referenc
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DVD-ROM Power Connector Appendix F
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Fan Connector Appendix F - Xbox Har
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272 Virtex-II FPGA 123 Visor 139, 1
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Hacking the Xbox

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