The why not use a UniBone comment has merit, what will your (FPGA)
> implementation add ?
>
Well,
I know the Unibone!
Surely is a very capable system for emulation of older hardware and
interfaces.
Also performances are good as far as I understand (I don't have one).
I have the idea of extending
I am working on a Philips P3800 computer, about 40 years old. It's a
multiprocessor Turbodos machine, a mix of Z80's and 80186's
The main problem is that I only have half the power supply. I have the
PSU-M3 battery-backed memory supply, but not the logic supply. This I
believe to be a PSU-B3 modul
Tony Duell wrote:
I am working on a Philips P3800 computer, about 40 years old. It's a
multiprocessor Turbodos machine, a mix of Z80's and 80186's
There is some P3500/3800 documentation online, including power supplies
(Netzteile) at: https://electrickery.nl/comp/divcomp/doc/index.html
Not
On 3/29/25 21:05, Ethan Dicks via cctalk wrote:
On Sat, Mar 29, 2025 at 9:46 PM Jon Elson via cctalk
wrote:
In the "old" days, such as the 1970's, pretty much any
DEC-manufactured peripheral was supplied as a bunch of cards
that plugged into a specific backplane section, generally 9
slots, I th
On 3/29/25 7:29 PM, Martin Bishop via cctalk wrote:
The why not use a UniBone comment has merit, what will your (FPGA)
implementation add ?
I'm not shad but I've also been working on a somewhat similar
FPGA-based board called the USIC / QSIC. We started working on it
before the UniBone
David
You will have seen my response to shadooo / Andreas.
Occasional NOS in small quantities excepted, I'm also unaware of slow
transition rate drivers available for purchase. The DS8641 DS3662 DS 3682 are
to my knowledge all unobtanium.
Your driver design sketches and comments are substant
Hi shad / Andrea
Thank you for the exposition of the merits of FPGA implementations for Unibus
and Qbus machines; it was cheeky of me to pose the question.
Regarding cost savings from reusing the main module I suspect the cost of a
Zynq module would be much less than that of the bus adapter
https://forum.vcfed.org/index.php?threads/unibus-qbus-alternative-driver-chips.1243045/
Found on my travels - should have been attached to my previous eMail
My summary is "no easy answer"
Martin
-Original Message-
From: Martin Bishop via cctalk [mailto:cctalk@classiccmp.org]
Sent: 30 M
On Sun, Mar 30, 2025 at 11:06 AM Jon Elson wrote:
> On 3/29/25 21:05, Ethan Dicks wrote:
> > On Sat, Mar 29, 2025 at 9:46 PM Jon Elson wrote:
> >> In the "old" days, such as the 1970's, pretty much any
> >> DEC-manufactured peripheral was supplied as a bunch of cards
> >> that plugged into a specif
I used to design UNIBUS bards in the day. I recall that the 8T26 was a
good substitute and there are some pieces of them on ebay.
Marc Howard
On Sun, Mar 30, 2025 at 6:55 PM Martin Bishop via cctalk <
cctalk@classiccmp.org> wrote:
>
> https://forum.vcfed.org/index.php?threads/unibus-qbus-altern
Da11-f unibus window is 4 slots and has two complete unibuses (I have one)
On March 30, 2025 6:17:05 PM CDT, Ethan Dicks via cctalk
wrote:
>On Sun, Mar 30, 2025 at 11:06 AM Jon Elson wrote:
>> On 3/29/25 21:05, Ethan Dicks wrote:
>> > On Sat, Mar 29, 2025 at 9:46 PM Jon Elson wrote:
>> >> In the
Does anyone have a list of what boards they were used on?
I do have some boards I'm planning or recycling (I know, I shouldn't say
that, especially here, but most are common boards nobody uses anymore.) I
haven't looked at the IPBs yet, but did plan on pulling some of the chips.
On Sun, Mar 30,
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