20 Apr
2019
20 Apr
'19
1:32 p.m.
Picked one up, it is the last generation of 3274-style controllers before they went to
3174-style ca. 1988.
I'd like to find manuals and the IPL diskette (1.2mb).
The unit actually had an IPL floppy, but it disintegrated trying to recover it (there is
signs of
rust inside the hardware so the whole thing got wet).
I took some pics of the boards (each one has a 68000 on it, only one board has eproms)
and dumped the firmware which is up now under telex on bitsavers.
Curiously, the floppy appears to be in FILES-11 format..
21 Apr
21 Apr
9:11 a.m.
On 4/20/19 1:32 PM, Al Kossow via cctalk wrote:
Picked one up, it is the last generation of 3274-style
controllers before they went to 3174-style ca. 1988.
I'd like to find manuals and the IPL diskette (1.2mb).
The unit actually had an IPL floppy, but it disintegrated trying to recover it (there is
signs of
rust inside the hardware so the whole thing got wet).
I took some pics of the boards (each one has a 68000 on it, only one board has eproms)
and dumped the firmware which is up now under telex on bitsavers.
Curiously, the floppy appears to be in FILES-11 format..
The floppy isn't completely dead even though trk0 on both sides is gone.
Made a clone of the floppy with a SuperCard Pro board and it IMLs far enough that I can
get into some diagnostics.
Don't know what to do without docs.
I suspect the configuration goes through the RS-232 port, since all of the configuration
string are in ASCII.
Today's project is to go through the later-gen 1174 controller docs to see if there is
some hint of how to
configure the thing and try that on the earlier model.
2:29 p.m.
On 4/21/19 9:11 AM, Al Kossow via cctalk wrote:
Today's project is to go through the later-gen
1174 controller docs to see if there is some hint of how to
configure the thing and try that on the earlier model.
Configuration is completely different
I noticed it isn't even getting as far as starting the 2nd CPU
since I noticed the 'LDERR' light come on at the point where IML faults
22 Apr
22 Apr
8:15 p.m.
I have a late model 1174 it looks like they kept the same basic
architecture, each board has a full 68k.
On Sun, Apr 21, 2019 at 2:29 PM Al Kossow via cctalk <cctalk at classiccmp.org>
wrote:
On 4/21/19 9:11 AM, Al Kossow via cctalk wrote:
Today's project is to go through the
later-gen 1174 controller docs to
see if there is some hint of how to
configure the thing and try that on the earlier
model.
Configuration is completely different
I noticed it isn't even getting as far as starting the 2nd CPU
since I noticed the 'LDERR' light come on at the point where IML faults
23 Apr
23 Apr
8:45 a.m.
Could you take some pictures and image the 5" floppies?
Is this one of the big floor standing units (1174-10C) ?
Did you get any docs with it?
On 4/22/19 8:15 PM, Kevin Bowling wrote:
I have a late model 1174 it looks like they kept the
same basic architecture, each board has a full 68k.
9:16 a.m.
On 4/22/19 8:15 PM, Kevin Bowling wrote:
I have a late model 1174 it looks like they kept the
same basic architecture, each board has a full 68k.
The desktop models (-60 and -95) have a large integrated main boards with plug-ins for
comms options.
I have one of each, I have them pulled apart right now to take pictures.
Some decent pics of the -60R are here:
https://www.ebay.com/itm/191672782519
is this yours?
http://www.aceware.com.au/acms/EventDetail.asp?lngEventId=54
10:13 a.m.
It's labeled Visara, 1174-25S mfg date is 2003. It only has a 3.5"
floppy, it boots off an internal HDD, so I'm not sure how to load code
for DFTs yet.
Regards,
Kevin
On Tue, Apr 23, 2019 at 9:16 AM Al Kossow <aek at bitsavers.org> wrote:
On 4/22/19 8:15 PM, Kevin Bowling wrote:
I have a late model 1174 it looks like they kept
the same basic architecture, each board has a full 68k.
The desktop models (-60 and -95) have a large integrated main boards with plug-ins for
comms options.
I have one of each, I have them pulled apart right now to take pictures.
Some decent pics of the -60R are here:
https://www.ebay.com/itm/191672782519
is this yours?
http://www.aceware.com.au/acms/EventDetail.asp?lngEventId=54
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