27 Jan
2020
27 Jan
'20
10:38 a.m.
Hello!
I have a Naked Mini system that was used as the controller in a Linotype phototypesetting
machine. From what I've been told, the Naked Mini CPU board is Nova compatible. I
would like to use the CPU board in my own system, but I don't have enough information
to do so. I haven't been able to find any documentation online that describes the
backplane interface.
I could reverse engineer the backplane using one of the RAM boards as reference, but if
the information already exists it would save me a tremendous amount of time.
Here is a gallery of the controller cage: https://imgur.com/a/LNkQisq
Thanks.
28 Jan
28 Jan
7:12 a.m.
I wonder if it's for the typesetter that's the subject of:
https://www.cs.princeton.edu/~bwk/202/summer.scanned.pdf
9:14 a.m.
Yes. Someone pointed that out on IRC. I feel pretty dense for not noticing that sooner!
The CPU board is very similar in form and layout to the "Naked Milli" board. I
can only find reference to this board in a sales pamphlet from 1976. My board says
"Naked Mini" on it though...
-------- Original Message --------
On Jan 28, 2020, 11:54, Al Kossow via cctalk wrote:
On 1/27/20 10:38 AM, TangentDelta via cctalk wrote:
From what I've been told, the Naked Mini CPU
board is Nova compatible.
very funny
look at the documentation on bitsavers, the only thing they have in common is that they
are
both 16-bits
29 Jan
29 Jan
5:41 p.m.
I mapped out the Maxi-Bus using the Alpha manual. It seems relatively straight-forward.
https://docs.google.com/spreadsheets/d/1Qp5xM5E_9Trn5-VABEbeffxY4pEnmCk6m-x…
The Linotron 202 reverse-engineering paper by Joe Condon, Brian Kernighan, and Ken
Thompson mentions a 512x4 PROM containing boot code. It seems like the next step here is
for me to identify this PROM and attempt to dump it and disassemble it.
Sent with ProtonMail Secure Email.
??????? Original Message ???????
On Tuesday, January 28, 2020 12:14 PM, TangentDelta via cctalk <cctalk at
classiccmp.org> wrote:
Yes. Someone pointed that out on IRC. I feel pretty
dense for not noticing that sooner!
The CPU board is very similar in form and layout to the "Naked Milli" board. I
can only find reference to this board in a sales pamphlet from 1976. My board says
"Naked Mini" on it though...
-------- Original Message --------
On Jan 28, 2020, 11:54, Al Kossow via cctalk wrote:
> On 1/27/20 10:38 AM, TangentDelta via cctalk wrote:
>
> > From what I've been told, the Naked Mini CPU board is Nova compatible.
>
> very funny
> look at the documentation on bitsavers, the only thing they have in common is that
they are
> both 16-bits
30 Jan
30 Jan
12:19 p.m.
On 1/29/2020 6:41 PM, TangentDelta via cctalk wrote:
I mapped out the Maxi-Bus using the Alpha manual. It
seems relatively straight-forward.
https://docs.google.com/spreadsheets/d/1Qp5xM5E_9Trn5-VABEbeffxY4pEnmCk6m-x…
The Linotron 202 reverse-engineering paper by Joe Condon, Brian Kernighan, and Ken
Thompson mentions a 512x4 PROM containing boot code. It seems like the next step here is
for me to identify this PROM and attempt to dump it and disassemble it.
And if you don't have a prom programer, you can burn one here.
http://www.eprompro.com/Index.html
1554
days inactive
1557
days old
5 comments
4 participants
participants (4)
-
aek＠bitsavers.org -
bfranchuk＠jetnet.ab.ca -
phil＠ultimate.com -
tangentdelta＠protonmail.com