On Monday 11 February 2002 19:06, Jeff Newmiller wrote:
> Using chassis ground as signal ground is not recommended, as the two
> may differ significantly if an electrical short occurs or if you
> start disconnecting parts out of sequence.
>
> Remember, current flows in a loop... keep the loop smal
Nuts.
My ftp site with the doc:
ftp://ftp.schalit.net/pub/Random/LD017.doc
ftp://ftp.schalit.net/pub/Random/LD017.pdf
Regards,
Matthew
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Jeff Newmiller wrote:
>
> On Mon, 11 Feb 2002, guitarlynn wrote:
> > and forget about pin 3 that runs to
> > the IDE cable altogether.
Yes you can forget about pin3 if they ever make that jumper.
> Using chassis ground as signal ground is not recommended, as the two may
> differ significant
On Mon, 11 Feb 2002, guitarlynn wrote:
[...]
> I agree with that totally ... but you won't need the IDE pin #30.
>
> OK, didn't say outright was ;)
> on the 3-pin jumper (that doesn't exist), the WAIT# comes
> from LD017 (pin 62) to pin 2 and pin 1 goes to ground
> for manual WP. You shoul
Sigh,
Everybody likes spherical cows, and
make that 100K for the resistor.
>Vcc
> o
> |
> |
> |
> o
> /
> \ 100K
> /
> \
> o
> |
> |
> |
> o-- WP# > to controller chip,
> | named
guitarlynn wrote:
>
> On Saturday 09 February 2002 04:01, Jeff Newmiller wrote:
> > The altered states to start to come into focus. :)
>
> hehe, kind of scary, eh?
It's not the fear but how you deal with it. Facing down
a half dozen genius physicists is good times. They have
a lot of wit, and
> > This is a cmos logic device.. not a power driver. It will not burn
> > out any resistor. You often see resistors inline to limit current
> > (say, for LEDs or transients from off-board inputs), but these are
> > NEVER zero ohm resistors.
>
> I will have to agree with that, a real small diode
On Saturday 09 February 2002 04:01, Jeff Newmiller wrote:
> The altered states to start to come into focus. :)
hehe, kind of scary, eh?
> This is a cmos logic device.. not a power driver. It will not burn
> out any resistor. You often see resistors inline to limit current
> (say, for LEDs or
On Sat, 9 Feb 2002, guitarlynn wrote:
> OK, a little back-ground on me, so maybe this makes a little more
> sense to follow. I have had 3 years of electronics schooling, a
> little over 2 years of Electrical engineering, and been a licensed
> electrician for around 4 years after a 5 year apprent
OK, a little back-ground on me, so maybe this makes a little more
sense to follow. I have had 3 years of electronics schooling, a
little over 2 years of Electrical engineering, and been a licensed
electrician for around 4 years after a 5 year apprenticeship with
specialties in digital control des
Mike Noyes wrote:
> Matt,
> You're assuming that I understood what the SST engineer was telling me, and
> that I was able to express it correctly in my post. Neither of these things
> is guaranteed, as I know next to nothing about electrical engineering.
No problemo. We'll get it figured out s
guitarlynn wrote:
>
> On Friday 08 February 2002 22:00, Matt Schalit wrote:
> > > ATA-Disk module (ADM) and it's write-protect features:
> > > > >Here is the 40pin 5V ADM schematic. This is using the LD017
> > > > >controller. In the schematic R8 is used as an option for WP.
> >
> > I think this
At 2002-02-08 20:14 -0800, Matt Schalit wrote:
>On the other hand, the tech told Mike the following:
>
> > I just got off the phone with one of the tech support
> > guys at SST. He sent me the schematic for the ADM device. They
> > placed a resister R-8 on the ADM that can be shunted to ground to
On Friday 08 February 2002 22:00, Matt Schalit wrote:
> > ATA-Disk module (ADM) and it's write-protect features:
> > > >Here is the 40pin 5V ADM schematic. This is using the LD017
> > > >controller. In the schematic R8 is used as an option for WP.
>
> I think this is the crux. It's being used.
Sorry to resend this. I sent it before I was done
accidentally
Charles Steinkuehler wrote:
>
> Mike Noyes got the sst guys to send a schematic and some details about their
> ATA-Disk module (ADM) and it's write-protect features:
>
>
Charles Steinkuehler wrote:
>
> Mike Noyes got the sst guys to send a schematic and some details about their
> ATA-Disk module (ADM) and it's write-protect features:
>
> > >Here is the 40pin 5V ADM schematic. This is using the LD017
> > >controller. In the schematic R8 is used as an option fo
Mike Noyes got the sst guys to send a schematic and some details about their
ATA-Disk module (ADM) and it's write-protect features:
> Fwd: FW: LD017 SADM sch
> >From: Tanvir Sadique <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: FW: LD017 SADM sch
> >Date: Fri, 8 Feb 2002 10:44:02 -0800
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