11 Dec
2015
11 Dec
'15
9:26 p.m.
Oliver Lehmann <lehmann at ans-netz.de> wrote:
Chuck Guzis <cclist at sydex.com> wrote:
> On 12/11/2015 12:04 PM, Oliver Lehmann wrote:
>
>> This is the question... what is the "correct data"? Would I be able
>> to see the cyl/sector/head information I've set before in that
>> buffer? I didn't understand what the sector buffer really is by
>> reading the docs.
>
> Well, ideally, this contains the data of the last sector
> transferred. It provides a sanity check on the data transfer path.
>
> So you should be able to do a "read sector buffer" after the
> aborted "read sector" and get some clue.
I now tried something different. I issued a "format track command" and
sent 512 bytes afterwards as described in the ata spec. The drive does
not respond with an error, and when I read the sector buffer right
afterwards, it contains the exact data I transfered after I issued the
format track command.