20 Mar
2014
20 Mar
'14
11:55 a.m.
On Mar 20, 2014, at 11:16 AM, Vincent Slyngstad <vrs at msn.com> wrote:
From: Philipp Hachtmann: Thursday, March 20, 2014 4:55
AM
I think your perspective may be Omnibus-centric. I basically agree with you for the
Omnibus, Posibus, and Posibus Data Break busses.
Those busses are relatively poorly specified, and generally fairly short. Indeed, the
Omnibus configuration guide only discusses systems with 1 or 2 boxes.
I haven't done a lot with Omnibus stuff (yet), so I don't have a lot of experience
with it. But I tend to be conservative with designs and will probably do whatever DEC did
on their boards as far as drivers go. ;-)
but I
think it is entirely appropriate
to point out that that they almost certainly don't meet the bus specs, even
though that probably will affect only a small fraction of users.
Who is that
fraction? For me it currently looks like the empty set. So for me the bus driver
discussion is as much of secondary interest as it could be.
And I insist: Throwing up this bus driver thing again and again discourages people.
However, discussions of bus drivers for Unibus and Qbus still seem relevant.
Given that I've had *loads* of issues related to BC11A cables (still planning on
making some of my own), I'd be really hesitant to use anything other than the DEC
specified parts.
TTFN - Guy