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    SubjectRe: Problems Hot-Swapping IDE ATA drives
    Dear Daniela,
    > There is a problem with PCMCIA<->ATA adapters and "True IDE mode":
    > A CompactFlash unit enters "True IDE mode" when the /OE pin is held low
    > at device power on. This is fine when your system is powered on with
    > the CF card inserted. But if you insert a CF card into an already
    > powered on system, the /OE pin is not connected to the socket and thus
    > held high by an device-internal pull up at device power on. This is
    > because the power pins are longer than the other pins and connected
    > before the others! So the CF card enters "memory mapped mode" instead
    > of "True ATA mode" and is no longer accessible from the ATA host.

    Many many thanks to you for the hint - I added the On/Off switch on the adapter power and everything now works fine! I insert cassette, cycle the power and mount the drive - it works!
    Once again - many thanks.

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      Last update: 2005-03-22 13:31    [W:0.021 / U:16.984 seconds]
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