I must be google-ly impaired, I tried all different combo's of kzqsa
jumpers, settings, technical and so forth and the closet I found was a
cryptic response from the HP/Compaq Vax Wizard which said a lot but told you
nothing, thanks Eric, where do you want that Jolt sent? :-)
Curt
----- Original Message -----
From: "Eric Dittman" <dittman_at_dittman.net>
To: <cctalk_at_classiccmp.org>
Sent: Wednesday, October 30, 2002 12:06 AM
Subject: Re: I can't believe this?!??!
> > In all that is the collective geek-dome of classic computers, I find it
> > boggling to see that no one has (or wishes to share... you greedy SOB
;-)
> > the technical manual and/or jumper settings for the elusive DEC KZQSA
Qbus
> > to SCSI adapter boards.... come on, I challenge the collective knowledge
> > base of the DEC geeks to come up with this mysterious and treasured
> > knowledge and share it with the list. The winner gets a free 6 pak of
> > JOLT soda for those looooonnnnngggggggg caffeine induced late nights ;-)
>
> Courtesy of Google (first entry I found):
>
> There are three sets of jumpers on the KZQSA:
>
> 1) W1 to W7 select the CSR address; the interrupt vector is
programmable,
> so there are no jumpers to set it. Since it sounds like your setup is
> fairly simple, I'll guess that your CSR is at or near the default
> address and list a few corresponding jumper settings ... if the CSR that
> CONFIGURE gives you is not below, you might want to post it, so that one
> us can verify the correct jumper settings, just to be on the safe side.
>
> CSR W7 W6 W5 W4 W3 W2 W1
> ------ -- -- -- -- -- -- --
> 761300 0 0 0 1 0 1 1 (default)
> 761400 0 0 0 1 1 0 0
> 761500 0 0 0 1 1 0 1
>
> But generally, you can work out the jumper settings as follows: if W7 is
> 0 (not set), the CSR is 76xy00, but it it is set (1), the CSR is 77xy00;
> the octal digit "x" is determined by the settings of W6 to W4, and the
> digit "y" is determined by W3 to W1 as illustrated by a few examples:
>
> 760100 0 0 0 0 0 0 1
> 760400 0 0 0 0 1 0 0
> 761000 0 0 0 1 0 0 0
> 764000 0 1 0 0 0 0 0
> 770000 1 0 0 0 0 0 0
>
> 2) W9 to W13 determine the memory base address; the default is the
> address range 01000000-01377777 for the 128 KB memory on the KZQSA,
> for which only W10 is set and the others are not. You need to
> arrange for all modules that use Qbus memory space to have unique
> address ranges ... but this is normally not such a problem, since
> not so many modules use Qbus memory space. To see if it is a problem
> in your configuration, issue a SHOW QBUS command from the console
> prompt (>>>); at the end of the output (after the scan of IO space),
> you will find the Scan of Qbus Memory Space, which shows which
> address ranges are in use. If 01000000-01377777 does not overlap
> any range currently in use (if any), you have no problem and can
> just use the default jumper setting here.
>
> Otherwise, the address selection jumpers just increase the base
> address of the KZQSA's 128 KB memory in steps of 128 KB; i.e.,
>
> address range W13 W12 W11 W10 W9
> ----------------- --- --- --- --- ---
> 00000000-00377777 0 0 0 0 0
> 00400000-00777777 0 0 0 0 1
> 01000000-01377777 0 0 0 1 0 (default)
> 01400000-01777777 0 0 0 1 1
> ...
> 17400000-17777777 1 1 1 1 1
>
> Also note that W8 is in the same jumper block as W9-W13; I have no
> idea what it does, probably best to leave it alone...
>
> 3) W14 to W16 set the SCSI ID of the KZQSA; W14 sets the MSB (4)
> and W16 the LSB (1). The default is 7, which should be OK for most
> purposes.
>
>
> --
> Eric Dittman
> dittman_at_dittman.net
> Check out the DEC Enthusiasts Club at http://www.dittman.net/
>
Received on Wed Oct 30 2002 - 09:30:01 GMT