Hi
Recently received a Fujitsu SMD drive (85M) which
seems
to be in great shape. Fortunately the heads were
locked
when the drive was last powered down.
I have the Xylogics card and cables and also various
power cables.
I noticed however that the drive does have 4 mounting
points with rubber bushes. Does anyone have any
experience
in installing these drives, and what the mechanical
requirements are? Were there special cases to contain
the drives for example?
Thanks
Ian.
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>
>Subject: Re: CUBIX/6809 updates
> From: Jos Dreesen <jos.mar at bluewin.ch>
> Date: Tue, 13 Dec 2005 22:20:15 +0100
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>
>Am dinsdag, 13.12.05, um 16:45 Uhr (Europe/Zurich) schrieb
>dave04a at dunfield.com:
>>>
>>
>> Possibly - Although Cubix was originally designed to be the OS for my
>> main
>> computer, and by that fact is pretty close to what I envisioned. It
>> was however
>> done 25+ years ago, and there is room for improvement. I'd wait until
>> some
>> more people have gotten into it and see what feedback develops.
>>
>
>A workaround for the floppy dataseparator would be very nice...
>
> Jos Dreesen
one possible design but not tested. There are others that are better.
www.analog-innovations.com/SED/FloppyDataExtractor.pdf
Hey everyone,
Are any of you interested in a group purchase of MCM68766 EPROM chips?
These are used in M8189s and possibly in some other DEC equipment. I'm
looking to upgrade my M8189 to a -BJ with these chips.
Unfortunately the places that sell them are asking for a $150-200
minimum order.
If you're interested, let me know.
Julian
Hi Dan,
I came upon your old post and was wondering if you ever got a response.
We have one working and one ocassionally working MCS16F and would love to know more about the operating system.
Best Regards,
Bert van den Berg
bvdb at cruzpro.com
Hi Everybody,
If you come across the following computer, or know where to find one, or know
anything interesting about it, please let me know!
Labelled as: Fuji MCS-16F
Alleged OS: Unix OS9
Custom User Interface Software: Fuji MCS/2E V3.33
Installed Custom I/O Cards visible on back:
1. VM1161
2. VM1410
3. VM1310
There is one 5-1/4" floppy drive installed.
This appears to be a mid-1980's era customized controller, and is being used
to control a mid-1980's era Fuji SMT system. The problem is that the system
owners are beginning to be very nervous about the long-term feasibility of the
computer/controller and are searching for a backup while preparing for a
surprisingly expensive software upgrade sometime in the future. Fuji no longer
supports the installed software.
This is also the type of thing that one may encounter in the usual places...
in a dumpster, or in a pile at an auction or, well, you know, where ever.
Rest assured that this particular model of obscure computer has some worth
left in it, so please let me know if you encounter one!
Thanks,
Dan M
Bellows Falls, Vermont
USA
but it would make the entry of an address (16-bit) cumbersome.
You must enter it as an 8-bit high and an 8-bit low address.
I'd definately would go for 16 switches in this case, and also
16 LEDs for the address. Perhaps a matter of taste ...
What if you need access to xxx.nnn where xxx != 000 or 777?
Why pose limits that early in the design? You might regret such
a decision later ...
- Henk, PA8PDP
________________________________
Van: cctalk-bounces at classiccmp.org namens woodelf
Verzonden: ma 12-12-2005 23:05
Aan: On-Topic and Off-Topic Posts
Onderwerp: Re: CUBIX/6809 updates
Gooijen, Henk wrote:
>Using the pdp8/e design fron panel for the 6809 is possible, but ...
>there are only 15 Address LEDs (12 plus 3 for EMA), and the other row is
>12 LEDs, so the upper 4 would not be used. The rotary knob could be used
>to display A or B (or DP or CC) but to display X, Y, U, SP, PC you need
>16 LEDs. There are just 12 switches, and you could use the SW switch as
>the 13th, but still, to enter a 16-bit address would be cumbersome.
>So, the pdp8/e panel is not the best choice, but the implementation
>-hardware wise- is always possible. Software is what makes it 'tick' :-)
>and I am sure that's "piece of cake" for you, Dave.
>
>
As you all know by now I am building a 9/18 bit cpu. My front panel
will be limited to
9 data switches and a address page switch. This lets me access 000.nnn
and 777.nnn
memory on address load. Since I plan only to use the swr for short
programs on page zero
and have a bootstrap rom and I/O on the last page this more than ample
for me.
A similar restricted front panel may be possible as well for the 6809 as
data is byte orientated.
Ben alias woodelf
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Thank you for your cooperation.
You can buy these new from JDR Microdevices for $28.88. You have to use this
one as the primary disk controller, but it supports up to four 360kB, 720kB,
1.2MB or 1.44MB floppy drives.
http://www.jdr.com/interact/item.asp?itemno=MCT-FDC-HD4
I have an earlier version that could be used as a secondary controller. I've
been using it for 15 years at least. The only changes to Config.sys or
Autoexec.bat that are needed are to point to the hard drive: it gets bumped
up one drive letter for each floppy you add (my one 3.5" floppy is drive C:
and the hard drive is then D:).
Message: 12
Date: Tue, 13 Dec 2005 08:14:12 -0800 (PST)
From: Al Hartman <alhartman at yahoo.com>
Subject: Fancy Font?
To: cctalk at classiccmp.org
Message-ID: <20051213161412.18248.qmail at web30612.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
<snip>
BTW... Anyone got an AST SixPak Plus they are willing
to part with? I built an XT for old times sake, but it
only has 256k.
I have to find one of those controller cards that will
support a 1.44mb FDD also... Maybe at the Trenton
Computer Festival next spring...
Al
-------------Original Message---------------
Date: Tue, 13 Dec 2005 08:14:12 -0800 (PST)
From: Al Hartman <alhartman at yahoo.com>
Subject: XT expansion (was Fancy Font?)
BTW... Anyone got an AST SixPak Plus they are willing
to part with? I built an XT for old times sake, but it
only has 256k.
I have to find one of those controller cards that will
support a 1.44mb FDD also... Maybe at the Trenton
Computer Festival next spring...
Al
----------Reply---------------
Might have both for ya; contact me off-list pls.
mike
>From: "Brian Wheeler" <bdwheele at indiana.edu>
---snip---
>
>That said, the only thing that's really kept me from building machines
>(heh, besides time and money!) is the lack of an eprom (or eeprom)
>burner.
>
>What do you guys recommend? Are there instructions for PC-driven
>burners online somewhere that seem reasonable? If not homebuilt, what's
>a reasonable price for one?
>
Hi
I recommend not getting one at all. I recommend using
flash memory. There are a number of boot flash memories
that would work well. You put some simple code in the
boot part to get things bootstrapped up and then use
the other segments of the flash for your development.
Of course, you need to program the flash for the first
time. For this, you could get someone to program one
with your bootstrap code. Just remember, the bootstrap
code should be something really simple. You might even
make it something simple with a parallel port that
handshakes the data. That way you could even avoid
debugging the initialization sequence for a serial
chip. The bootstrap code should only load into
memory a fixed amount of code and then jump to that
code. 256 bytes should be enough. From there, you
increase the complexity as much as you like.
The parallel port could be just 2 bits out and
2 bits in.
Just my thoughts.
Dwight
>Thanks!
>Brian
>
>
>Subject: Re: Ee?prom burners [Was: Re: CUBIX/6809 updates]
> From: "Dwight Elvey" <dwight.elvey at amd.com>
> Date: Tue, 13 Dec 2005 13:55:36 -0800 (PST)
> To: cctalk at classiccmp.org
>
>>From: "Brian Wheeler" <bdwheele at indiana.edu>
>---snip---
>>
>>That said, the only thing that's really kept me from building machines
>>(heh, besides time and money!) is the lack of an eprom (or eeprom)
>>burner.
>>
>>What do you guys recommend? Are there instructions for PC-driven
>>burners online somewhere that seem reasonable? If not homebuilt, what's
>>a reasonable price for one?
>>
>
>Hi
> I recommend not getting one at all. I recommend using
>flash memory. There are a number of boot flash memories
>that would work well. You put some simple code in the
>boot part to get things bootstrapped up and then use
>the other segments of the flash for your development.
> Of course, you need to program the flash for the first
>time. For this, you could get someone to program one
>with your bootstrap code. Just remember, the bootstrap
>code should be something really simple. You might even
>make it something simple with a parallel port that
>handshakes the data. That way you could even avoid
>debugging the initialization sequence for a serial
>chip. The bootstrap code should only load into
>memory a fixed amount of code and then jump to that
>code. 256 bytes should be enough. From there, you
>increase the complexity as much as you like.
> The parallel port could be just 2 bits out and
>2 bits in.
> Just my thoughts.
>Dwight
For CUBIX that means a bit of work as the OS is rom resident.
Building a parallel port EEprom burner is trivial, Eprom for a
limited design say one type is fairly easy. Code the drive the
parallel port is a PC coding problem and I hate PCs.
there are PCport designs on the net.
myself I have a S100 board that does 2716->27128 and through
a hack I've done 27512s and 27010s.
Allison
