12 Aug
2015
12 Aug
'15
12:53 a.m.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Chuck Guzis
Sent: Tuesday, August 11, 2015 5:42 PM
To: General at classiccmp.org; Discussion@
Subject: Re: Writing 8" floppies with SuperCard Pro
On 08/11/2015 05:27 PM, Josh Dersch wrote:
> The issue is that upon reading back a disk that
has been written via
> the SuperCard, data is fine up until about cylinder 60, at which point
> bad sectors start appearing more and more frequently (though most of
> the data is still OK). I tried disabling TG43 just to see if it made
> a difference, and it does - with TG43 disabled sectors written past
> cylinder 43 read back as garbage.
>
> I'm running short of ideas. Anyone else have any experience with this
> combo? Any suggestions on troubleshooting tips?
So what does the software do to compensate for bit
crowding/shifting
when writing to the inner cylinders? That is, what sort of write
precompensation does it perform?
Absolutely no idea -- the manual isn't particularly technical and the SDK mentions
nothing. I'll see if there's anything to be dug up in this regard. (Thanks also
to Eric for suggesting this problem...)
- Josh
--Chuck