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- From: stieber@Informatik.TU-Muenchen.DE (Christian Stieber)
- Newsgroups: alt.sources.amiga
- Subject: Re: NoClick?
- Date: 19 May 1994 15:24:08 GMT
- Organization: Technische Universitaet Muenchen, Germany
- Lines: 29
- Distribution: world
- Message-ID: <2rg0ao$69r@hpsystem1.informatik.tu-muenchen.de>
- References: <Cq08z4.LCI@si.hhs.nl> <Cq1K9C.62G@si.hhs.nl> <2rfmum$noq@bmerha64.bnr.ca>
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- Frank Meijer (meijer@bnr.ca) wrote:
-
- > : Noclick, lets the drive make a step back, in stead of making a step
- > : forward when looking for a disk, it therefore prevents the drive from
- > : clicking all the time.
-
- > I never understood why such a program is required.
- > Why was the driver implemented in a way that makes
- > the drive click in the first place?
-
- Because diskchanges are only detected when the head moves (i.e. the drive
- receives a STEP pulse). Many drives will not step past track 0, so you can
- move the head to track 0 and step towards track -1, but the drive will
- stay at track 0 (this is what NoClick activates). However, some drives
- will happily move to track -1, possibly causing damage (if you do it all
- the time), therefore the default-setting for NoClick is OFF. It is pretty
- difficult to get a drive that is on track -1 back to "normal".
-
- Christian
-
-
- --
- // Christian Stieber | EMail: stieber@informatik.tu-muenchen.de
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