Problems Hot-Swapping IDE ATA drives
Dear Daniela,
Quoted 10 lines
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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