[comp.sys.atari.st] GCR floopy drive problem

dbb@panther.cerc.wvu.wvnet.edu (Dice Blackboard) (03/22/91)

I've got a question for all of you GCR experts out there.  I've been having a
major problem with formatting, reading, and writing of mac disks.  Whether I'm
in mac mode or using the format option in the spectre main menu, it always 
fails.  Formatting in spectre format works, but mac format doesn't. Reading
and writing to mac disks formatted on another machine is also a problem.  Some
work while others are unreadable or writable.  Even when it does successfully
read and write, which isn't often, it seems to be struggling along and having
problems.  Yes, I have run the GCRtest on my drive and the mac tests fail
miserably. Has anyone had this problem, and if so what's causing it?  My 
floppy drive is running at 301 R.P.M.'s.  Could there be a problem with the 
drive speed causing this? I had version 2.65C and have recently received 3.0.
The problem is the same on both versions. My system is a mega 2ST with an 
internal double sided drive. I also know about the problem with some mega 2st
machines, but the symptoms listed in the manual don't seem to fit the problem
I'm having.  I would sure appreciate any insight to this problem, because I'm
clueless. Thanks.
 
                                   Mark Starvaggi
                                   (email address: ms@cerc.wvu.wvnet.edu) or
                                   ( ''      ''  : ms@cs.wvu.wvnet.edu )

kron@netcom.COM (Kenneth Kron) (03/26/91)

From article <1477@babcock.cerc.wvu.wvnet.edu>, by dbb@panther.cerc.wvu.wvnet.edu (Dice Blackboard):
> I've got a question for all of you GCR experts out there.  I've been having a
> major problem with formatting, reading, and writing of mac disks.  Whether I'm
> in mac mode or using the format option in the spectre main menu, it always 
> fails.  

Well I had a simular but different problem (which got no response when
I posted so although it may not help I'll post it anyway.

The difference between our problems is that the GCR tests passed when
I ran them but I also could not format floppies and could not read 
floppies written on other systems but I also had problems reading some
atari floppies that I had been able to read in the past.   This lead me
to believe that my drive was out of alignment/failing.  When I talked
to my local dealer they told me the don't do drive aligments 'cause
it's not worth it so I got a new drive which solved my problems.

Hope this helps.
-- 
Kenneth Kron kron@netcom.COM

mc4c+@andrew.cmu.edu (Mark Choi) (03/27/91)

> Excerpts from netnews.comp.sys.atari.st.tech: 25-Mar-91 Re: ST Pad specs
> T R Hall@atari.UUCP (1624)

> In case you're curious, the software is a neural-net
> simulation.

Really? I am studying PDP at CMU [:^)] and would like to know what
architecture you are using, and what kind of training set you used, etc.
Also what software do you use? This sound way cool! I would love to show
this machine to my instructors. BTW, the ATM is going at 40 MPH now with
Neural net implemented on Sun Sparcstations!


			-geisha-
P.S. I contiually bounce when trying to post to atari.UUCP, so I'll post
here and hope no one minds too much.