18 Jun
1998
18 Jun
'98
8:21 a.m.
<I wonder if implemented if it would be necessary to let the read
<electronics know which sensor it was reading to compensate for the
<rotation positional difference. Or whether when reading the flippy
<side it would simply wait longer to read the sector header.
<
< - don
No, the relative position is the same as the index hole occurs and you
start formatting there. What that means is sector 1 is displaced about
1/3 of a turn from the "normal" unflipped position.
Allison
18 Jun
18 Jun
10:45 a.m.
On Thu, 18 Jun 1998, Allison J Parent wrote:
<I wonder if implemented if it would be necessary to let the read
<electronics know which sensor it was reading to compensate for the
<rotation positional difference. Or whether when reading the flippy
<side it would simply wait longer to read the sector header.
<
< - don
No, the relative position is the same as the index hole occurs and you
start formatting there. What that means is sector 1 is displaced about
1/3 of a turn from the "normal" unflipped position.
Allison
Yes, of course!
- don
11:21 a.m.
Allison J Parent wrote:
<I wonder if implemented if it would be necessary to let the read
<electronics know which sensor it was reading to compensate for the
<rotation positional difference. Or whether when reading the flippy
<side it would simply wait longer to read the sector header.
<
< - don
No, the relative position is the same as the index hole occurs and you
start formatting there. What that means is sector 1 is displaced about
1/3 of a turn from the "normal" unflipped position.
Allison
Wait a minute folks. Remember, the 'flippy' floppy, was intended to be
turnned over, and re-inserted into a 'single side drive'. IF you are
reading and writing to the second side _without_ the 'flip' operation,
you need to be writing and reading the data stream, and inverting the
order of the data for the whole track.
Chuck
--
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He, who will not reason, is a bigot; William Drumond,
he, who cannot, is a fool; Scottish writer
and he, who dares not, is a slave. (1585-1649)
While he that does, is a free man! Joseph P. 1955-
-----------------------------------------------------------
Chuck Davis / Sutherlin Industries FAX # (804) 799-0940
1973 Reeves Mill Road E-Mail -- cad(a)gamewood.net
Sutherlin, Virginia 24594 Voice # (804) 799-5803
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