17 May
2025
17 May
'25
8:18 a.m.
Henry Bent via cctalk wrote:
On Fri, May 16, 2025, 21:49 Warner Losh
<imp(a)bsdimp.com> wrote:
Oh yes, it got..but probaply not with that KA630.
Take a look at this:
https://www.tiffe.de/Robotron/PDP-VAX/rtVAX300/
That rTVAX 300 contains an CVAX with SGEC and serial devices, meant as
a building block for embedded Applications with VAXeln.
I've tried to port NetBSD to the ISA board, but failed. There was no
Interest from the NetBSD VAX People to help. I've run in a problem with the
Memory management afte the positve results at the beginning.
Regards,
Holm
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On Fri, May 16, 2025, 7:33 PM Henry Bent via cctalk <cctalk(a)classiccmp.org>
wrote:
Yeah, I always forget that that existed. I kind of get the sense that
everyone else did too. Did it get any real market penetration?
-Henry
> On Fri, 16 May 2025 at 20:33, Jonathan Stone via
cctalk <
cctalk(a)classiccmp.org> wrote:
VAX eln realtime applications?
Warner
However a pure Q22/Q22 backplane will not support any Microvax II or III
memory cards, as they use CD slots as part of the Private Memory
Interconnect (PMI) to the CPU. You could run a KA630 with just the 1MB
on
the CPU board; but it'd be even more
constrained than a microvax
2000/vaxstation 2000 with just the 2MB onboard memory.
Does anyone know what the reasoning behind the 1MB on the KA630 board was?
Just enough for a realtime application, maybe, or a single tinkerer? I
can't see running much of anything serious in 1MB on a uVAX II in 1985 if
you were really trying to take advantage of the hardware, so I wonder if
the idea was that the board would have other applications.