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ATA TRIM (Developers)

posted by roytam(R), 12.08.2017, 17:05

> I discovered in ACS-4 spec, that DATA SET MANAGEMENT requires LBA48
> parameters. So I further implemented LBA48 addressing scheme to feed IDE
> controller registers. Then I checked that it works using READ SECTOR(S) EXT
> command and I can read sectores beyond 128GB limit with it. Unfortunately
> it still fails with TRIM command but in different way - now I got the
> device busy timeout after writting the command code 06h even before I can
> start transfer sector data with the range list. The drive remains in busy
> state until I reset the controller via reset bit in I/O port 3F6h.

Did you check these out as well?


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