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From: bryce@hoser.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: noKLICKstart
Message-ID: <3616@zen.berkeley.edu>
Date: Sun, 6-Sep-87 05:06:18 EDT
Article-I.D.: zen.3616
Posted: Sun Sep  6 05:06:18 1987
Date-Received: Sun, 6-Sep-87 20:44:22 EDT
Sender: news@zen.berkeley.edu
Reply-To: bryce@hoser.berkeley.edu (Bryce Nesbitt)
Distribution: world
Organization: Rubber Hose Makers of America, Inc.
Lines: 53
Keywords: oh no!

Well it's obvious that there is much interest in not having empty drives
click; my mailbox tells me that!  (Almost filled /usr/spool/mail :-).

The original posting was a patch for the V1.2 Kickstart disk to eliminate
the click that empty drives make.  The posting also gave absolute
addresses for those who have ROMs.

The mail came in three categories:

-------------------
Mail> Thanks!  [That's always bugged the heck out of me.]
Me>   You're welcome.
-------------------
Mail> I get this message-> "You can't fool me! :-) That's not an unmodified
V1.2 (33.180) Kickstart!!".  I type "version" and it gives me 33.180.
What gives?
Me>   You have a "Gamma 1" Kickstart and not the "Release" version.  You must
upgrade to use noKLICKstart.  (Cost $12-$15.  Includes Kickstart, Workbench,
Extras and documentation including important V1.2 technical info.  Dealers
know it as the "V1.2 Enhancer Software".)
A glitch at Commodore-Amiga caused the version number not to be auto-
incremented like it should have been.
-------------------
 And now the most serious category of responses.  I made an assumption with
noKLICKstart, a good one from my point of view.  I checked with Sony and NEC
and tested with others including Mitsubishi and Panasonic.  It worked
flawlessly on several A1000's, several A500's and a dealer's A2000 (German
design).
 I put it out on the net partially to get it tested on a wider base.
Several people wrote that one or more of their drives did not stop
clicking.  In fact, they get louder.  Each case where I know, it has been
with an early A1000, usually purchased from developer support back when the
machine first came out.  Some purchased from dealers early on.
 My assumption was that >any< transition of /STEP would reset the /CHNG latch.
This has held true for all respondents.  I also assumed that before /STEP
got to the stepper it would pass through a gate that would block it
if the DIRection was outwards and the track zero sensor was active.  All
drives I've ever seen that have an interface with DIR and /STEP have been
like this.
 Not those unlucky few.  Two of the people with this problem wrote or
posted that "Matsushita" was the brand stamped on their disk drives.
 In conclusion, it seems that noKLICKstart will work on most, but not all
disk drives.  Matt Dillon has a still-clicking external drive, so maybe I'll
ask if he will swap for my NEC while I look into the problem. (I'll also
try to track down the technical scoop from Matsushita).
 Until then it does no harm to try noKLICKstart on your system... but if the
clicking does not stop I can't recommend that you use it.  If it does
stop... may you, um. "Rest In Peace". :-)

|\ /|  . Ack! (NAK, EOT, SOH)
{o O} . 
( " )	bryce@hoser.berkeley.EDU -or- ucbvax!hoser!bryce
  U