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Thread: Uber-easy DIY USB ALDL Cable

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  1. #1
    Fuel Injected! supercoop's Avatar
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    Feb 2012
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    thanks for sharing Robert, i will have to order one an try it out.

  2. #2
    Fuel Injected! supercoop's Avatar
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    would you look this over an see if my thinking is correct.

    with the Uber-easy DIY USB ALDL Cable posted: RobertISaar

    for 8192 applications

    connect the RXD and TXD pins together(solder would be the preferred method), then connect that circuit to the ALDL pin M, then connect the ground pin on the converter board to the ground pin in the ALDL connector (pin A).

    for 160 baud applications

    You do not have to have TX and RX tied together. all you need is the receive part of the circuit, since it doesn't communicate in both directions.
    so just connect the RXD pin to the ALDL pin E , then connect the ground pin on the converter board to the ground pin in the ALDL connector (pin A).

    an set the voltage jumper setting to 5V, 3.3V might work, but it might also cause more problems.

    .In TunerPro RT, set it to 4800 baud and uncheck RS232 echo and it should started acquiring data,

    looking at the picture of the board ,i see there is allready a jumper across the TXD an RXD pins.
    these are the pins you would connect the M terminal to, for 8192
    or remove jumper an connect the E terminal to, RXD for 160 , Correct?

  3. #3
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    could leave the jumper there, it won't hurt anything, and you'll retain 8192 capability.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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