11 Dec
2015
11 Dec
'15
3:45 a.m.
Hi Chuck,
Chuck Guzis <cclist at sydex.com> wrote:
I found the section "400 nsec delays" an
interesting read,
particularly the bit about reading the status register five times.
http://wiki.osdev.org/ATA_PIO_Mode
--Chuck
You are completely right, but the drive is selected always as this is a
"one drive only" implementation. The same drive-selection-magic would
otherwise also apply to the "Read Sector Buffer" command which works
without any error.