Hi, I'm currently writing a partition manager / file recovery application which loads from a bootable disk. I have already written my own IDE ATA driver successfully so that I can read past the 137GB limit of BIOS i/o operations. This uses ports 1f0-1f7 and 170-177 for the primary and secondary ide controllers. This works fine on two computers - both of which have less than 60gb hard drives, however. On two other computers, both with larger hard disks, I cannot even find a hdd on the ide bus - i think this is because they are sata drives.

So my question is this: what port range do SATA drives use, and do they use the same data transfer methods as the IDE/ATA devices?

Hi,

What I am sure of: the protocol is absolutely the same as the ATA.
What I am not that sure: the Port address U can get reading the PCI configuration and talk to the device directly
Or U may boot up windows on that machine and view the resources used by the specific interface.

pepe

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Adatmentés - Data recovery