30 May
2017
30 May
'17
12:03 p.m.
Did you get an actual Firefly (research) board, or a prduction VAXstation
3520/3540 board? I don't think you're likely to find schematics or pinouts
for either, but it's not impossible to find 3520/3540 stuff, while I've
never before heard of anyone encountering any actual Firefly boards in the
wild.
30 May
30 May
12:16 p.m.
The actual Firefly board. Like this one:
http://www.digibarn.com/collections/parts/dec-firefly/
On Tue, May 30, 2017 at 3:03 PM, Eric Smith <spacewar at gmail.com> wrote:
Did you get an actual Firefly (research) board, or a
prduction VAXstation
3520/3540 board? I don't think you're likely to find schematics or pinouts
for either, but it's not impossible to find 3520/3540 stuff, while I've
never before heard of anyone encountering any actual Firefly boards in the
wild.
12:28 p.m.
Impressive. You might be able to get some information from DEC research lab reports.
Some SRC reports describe aspects of Firefly, but probably not the stuff you need. It may
be that some of the creators are still reachable, in which case you might get first hand
data.
paul
On May 30, 2017, at 3:16 PM, Mark Kahrs via cctech
<cctech at classiccmp.org> wrote:
The actual Firefly board. Like this one:
http://www.digibarn.com/collections/parts/dec-firefly/
On Tue, May 30, 2017 at 3:03 PM, Eric Smith <spacewar at gmail.com> wrote:
> Did you get an actual Firefly (research) board, or a prduction VAXstation
> 3520/3540 board? I don't think you're likely to find schematics or pinouts
> for either, but it's not impossible to find 3520/3540 stuff, while I've
> never before heard of anyone encountering any actual Firefly boards in the
> wild.
>
>
1:13 p.m.
On 30/05/17 20:16, Mark Kahrs via cctech wrote:
The actual Firefly board. Like this one:
http://www.digibarn.com/collections/parts/dec-firefly/
On Tue, May 30, 2017 at 3:03 PM, Eric Smith <spacewar at gmail.com> wrote:
> Did you get an actual Firefly (research) board, or a prduction VAXstation
> 3520/3540 board? I don't think you're likely to find schematics or pinouts
> for either, but it's not impossible to find 3520/3540 stuff, while I've
> never before heard of anyone encountering any actual Firefly boards in the
> wild.
>
>
If it has the same three connector blocks that are present at the bottom
of this photo:
http://www.digibarn.com/collections/parts/dec-firefly/Image42.jpg
then I would guess that it is not a VAXstation 3520 (KA60 CPU).
Are there any obvious part numbers?
Antonio
arcarlini at iee.org
--
Antonio Carlini
arcarlini at iee.org
31 May
31 May
5:41 a.m.
On May 30, 2017, at 4:13 PM, Antonio Carlini via
cctech <cctech at classiccmp.org> wrote:
On 30/05/17 20:16, Mark Kahrs via cctech wrote:
To clarify: Firefly is an internal-only device built by DEC research in Palo Alto. It
wasn't a product and as far as I remember wasn't the basis of one, either. There
are some DEC SRC reports that describe aspects of the Firefly. I think Modula-3 was
invented for it, but I may have my research platforms mixed up.
paul
The actual Firefly board. Like this one:
http://www.digibarn.com/collections/parts/dec-firefly/
On Tue, May 30, 2017 at 3:03 PM, Eric Smith <spacewar at gmail.com> wrote:
> Did you get an actual Firefly (research) board, or a prduction VAXstation
> 3520/3540 board? I don't think you're likely to find schematics or pinouts
> for either, but it's not impossible to find 3520/3540 stuff, while I've
> never before heard of anyone encountering any actual Firefly boards in the
> wild.
>
>
If it has the same three connector blocks that are present at the bottom of
this photo:
http://www.digibarn.com/collections/parts/dec-firefly/Image42.jpg
then I would guess that it is not a VAXstation 3520 (KA60 CPU).
Are there any obvious part numbers?
Antonio
arcarlini at iee.org
12:48 p.m.
On May 31, 2017 11:06 AM, "Paul Koning via cctalk" <cctalk at
classiccmp.org>
wrote:
To clarify: Firefly is an internal-only device built by DEC research in
Palo Alto. It wasn't a product and as far as I remember wasn't the basis
of one, either. There are some DEC SRC reports that describe aspects of
the Firefly. I think Modula-3 was invented for it, but I may have my
research platforms mixed up.
DEC claimed that the VAXstation 3520/3540 was based on Firefly. Certainly
many aspects of 35x0 are similar to 2nd gen Firefly, though details are
different.
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a.carlini＠ntlworld.com -
mark.kahrs＠gmail.com -
paulkoning＠comcast.net -
spacewar＠gmail.com