Dave McGuire wrote:
On 12/15/2012 12:26 PM, Holm Tiffe wrote:
On both the VME and the ISA Card is a SCN2681
used for the SLUs.
Could you verify this on yours Dave?
I don't see a 2681 on mine. Interestingly, I don't see any
recognizable UART on mine at all. I seem to recall that the rtVAX-300
module has an onboard console UART; is that the one you're connecting to
when you interact with the ROM?
....have you taked a look below the EPROMs? Thats the place wehre mine
is! The SCN2681 comes in different incarnations, this one has no handshake
lines and therefore it sits in a small housing below an Eprom.
Also, in case it is of any interest, my AEON VME board also contains a
WD SCSI host adapter chip, and I have another (very thick) VME board
from the same manufacturer, that came in the same card cage, that
contains a smallish SCSI hard drive and a floppy drive.
The VME Baord has a SCSI Connector (at the front plate) too, haven't looked
what chip is used jet. On the ISA Card is no SCSI Chip to find and as I
already wrote the 50 pin connector isn't SCSI at all :-(
FYI (and for the archives), my board is model VME-300E.
My VME Board is from Atlas Elektronik (this is the german way to write
Electronics) an on a handle "PA 4101 G 691\r\n WNr.
10350\r\nDF04-VME-MPR2300A" (\r\n are from me).
Two paper labels on the VME Connectors have this: "MU24301172 30-35539-04"
and "T6010-DA .B04 KAV30-AD" ... so its seems to be KAV30 compatible?
The Memory Subboard has an Fuba and a digital label. It was used on a
german Eploration Ship, the Polarstern before. so it isn't unlikely that it
is german made...
The KAV30-AD is the left board in the table from your document.
According to Manx, DEC publication EK-383AA-PG is the rtVAX-300
Programmers Guide. I've not been able to find a copy online.
Searched for that too...
This page gives some specifications on the AEON VME300E board, as well
as the DEC KAV30, which seems to be a similar product;
https://mail.encompasserve.org/anon/htnotes/note?f1=INDUSTRY_NEWS&f2=55…
This seems to be some source code for an rtVAX-300 on a VME module,
from SLAC:
http://www.slac.stanford.edu/accel/ilc/codes/ATF2/control-software/epics-3.…
Hmm and the sources are containing a copyright notice from:
*****************************************************************************
;
; AEON Systems, Inc.
; 8401 Washington PL NE
; Albuquerque, NM 87113
; (505) 828-9120
:-)
sine that's next to you (from my point of view) ...do you want to call
them and ask nicly if you can get some programming informations for your
and the ISA-300 rtVAX board?
The one interesting thing here is map_sm.c, which is code to access
the VMEbus from the rtVAX-300. Of course this isn't relevant to your
ISA card, but I found it interesting. In its comments, it references an
object library supplied by AEON that is specific to the VME300 board.
That is somewhat discouraging.
Yes, I tought such things anyways. Bu may be that code is out of business
for a enough long time (wo makes still an rtVAX) so may be we can get it?
Unlikely, I know.
I think there is a similar library for the ISA Board to get access to the
PC.
I note that on my AEON board, the rtVAX-300 module is mounted in a
socket. Nice! I can see building a really sweet VMS laptop around
that. B-)
Hehe, I'll see that hing :-) (With some kind of Truck Accu)
The CPU is socketed on both of my boards too..
I need to find some time to power this up.
On your board, you've found that you've got a VAXELN system in ROM. I
wonder if it would be worth disassembling the initialization code there
to figure out how to talk to the console.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
You are right, but I don't know anything about VAX Machine Code, nor the VM
Subsystem or even VME Bus and it's arbitation (this time). I'm a toatal
noob..
If you want:
http://www.tiffe.de/Robotron/VAX/isa300-rom.bin.gz
that is what in the 4 TMS27C040 ROMs is.
Regards,
Holm
--
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