I turned up some CPU info on it, which I uploaded to bitsavers/lockheed/sue
Dumps of the programmable parts on the CPU would be nice if anyone has one.
Hello All,
I've been trying to help a friend of mine get his XT-IDE (DP ver 2 board) up
and running to boot a HDD in an IBM 8525. It is a bit difficult since he is
across the country but we have made progress. However, we still cannot get
the system to boot.
The card is recognized by the system, the boot menu comes up. At first we
could not get it to find a HDD. However, after a bunch of trial error we
were able to get the drive to be recognized. We booted w/ a DOS 6.22 disk,
ran fdisk /mbr, and everything seems to have completed but after reboot the
HDD will not format. Checking with fdisk shown no partition info at all.
The XT-IDE is the only card in the system, booting from floppies is fine
with no issues. We also have gotten a 1h error at times. Finally, to rule
out the HDD as an issue we tried to boot using the serial connection. The
card is seen by the server but when we attempt to boot again we get a 1h
error.
Config info as follows:
ide_xt.bin: v2.0.0B3 (2013-03-02)
Full Operating Mode: No
IDE Controllers: 1
Power Management: Disabled
Device Type: XTIDE r1
Base Address: 300h
Control Block: 308h
Master & Slave Settings:
Block Mode Transfers: Yes
CHS Translation: Auto
Internal Write Cache: Disabled
User Specified CHS/LBA: No
Boot Settings:
Display Mode: Default
Number of Floppy Dr.: Auto
Scan for Serial Drives: No
Default Boot Drive: 80h
The BIOS chip is an amtel http://www.atmel.com/images/doc0270.pdf
EEPROM type: 2864
SDP: Enable
Page Size: 1 byte
EEPROM Address: D000h
Generate Checksum byte: Yes
At this point I am stumped. Any help is appreciated. Thanks.
-Ali
Hi folks,
I picked up an 1101 GRiDcompass with no power supply.
I'd like to attempt a retrofit. Does anyone know what voltages are in play?
I'm specifically worried about the EL panel and want to know if the high
voltages for it are produced in the PSU itself, or the panel.
Any information, or leads on a spare power supply are appreciated.
Failing that, I'll start reverse engineering the PSU in my other 1101-
they're just a pain to work on.
- Ian
--
Ian Finder
(206) 395-MIPS
ian.finder at gmail.com
> From: Al Kossow
> You can find a discussion about it in the archives (well, actually, you
> can't).
> Which reminds me..
> The archive have never come back to http://www.classiccmp.org/lists.html
Ah, which archives are we speaking of? The CCTalk archives?
If so, I've been hosting an 'un-official' copy of the archives from March '97
to January '05 here:
http://ana-3.lcs.mit.edu/~jnc/cctalk/
and they should be in Google by now.
I do have copies here of the archives from February '05 to Oct '14 (partial),
which were wiped out in the big list failure last fall (I forget where I got
them from), but they are not on-line. I think there was some talk of them
coming back at the main site, but if that's not going to happen, I'd be happy
to add them to the collection here.
The actual conversion from mail archives to web pages (for the '97 to '05
archives) was performed by john_a_s2004 at hotmail.com (thanks, John!), and I
don't have the code to do the transmogrification. I had enquired about doing
the rest of the archives, but I didn't hear back.
If there is significant interest in having them online too, I _could_ write
new code to spit out the relevant HTML message and index files. Should I do
so?
Noel
Well, here's another update on my never ending/ always changing list of
quad and hex boards. These are all M7xxx, and the M8xxx should be done in a
week or so. There are a few boards here I will be using myself, But I am
planning on selling off about 80% of my DEC equipment. All is located in
zip 61853 and most is shipable. There are a lot of boards to go through
yet, and this list does not show any PDP8 parts or industrial control, but
feel free to inquire.
There are still some DEC things I am willing to trade for, but I also
collect US, Great Britain, and Canadian and other coins, boy scout items,
and from our English members or anyone else who knows what it is, Doulton,
mostly Lambeth. Old microscopes, and almost anything Zeiss. Cash always
works.
Please contact me off list.
https://doc-0s-6g-docs.googleusercontent.com/docs/securesc/o60568klv0gtnika…
Today I am taking delivery of an IMSAI VDP-80 and am very happy to have
found one. This helps fill in my IMSAI collection. While it comes with
some disks (and I can deal with restoring the Persci drives), it comes with
no documentation. I do want to restore it to working condition.
I also have a PCS-80/30 that, I believe, shares some of the cards but not
all and have the documentation for that one.
Would anyone have any IMSAI VDP-80 documentation they can share? There
doesn't appear to be any online; at least in the usual places.
Thanks,
Santo
Hi List,
So a good friend of mine recently resurrected his childhood 286 Wang
PC260 after I suggested he replace the keyboard controller. In the 14 or
so years it's been unused, it has developed a memory fault in one of the
conventional memory banks. The memory is soldered to the board so we're
looking for anything that might assist in tracking down the dud memory IC.
He can get it to boot if the memory size is set to 256kB, so I'm
guessing the second 256kB bank is bad. Is there software that exists
that can identify individual dead or faulty memory IC's, or at least the
corresponding bit(s) which may not be working?
According to Dr. Google, this machine was built by Tandy for Wang.
Perhaps there's a Tandy diagnostic disk that'll work with it, or better
yet a Wang diagnostic disk.
(I'm wondering if this question has been asked/answered before too)
Cheers,
Alexis.
Can anyone help with this - A colleague (doing voluntary work) is trying to retrieve data archived on cartridges as per subject.
Does anyone have a drive he can borrow or buy; can someone read them for him etc? If anyone can help, e-mail me directly and I'll put you in touch. Have seen a couple of drives on ebay.com but none on ebay.co.uk. As per my e-mail address, Cardiff area. Note - I read cctalk in digest mode.
TIA.
Doug.
I assure you Chuck, I do know the original B5500 ALGOL having written my
first program on one.
For those of you who might be interested, I sent a listing of the B6700
ALGOL compiler source code to the CHM.
I'm surprised no one has mentioned the Burroughs extensions to ALGOL to
optimise|ize the use of the native string instructions.
Older DOS utils like IMD or TELEDISK knew better about 8" disks and precompression, directly accessing the controller. If the Supercard software has been written with no 8" disks support it will be hard to manage writes correctly. My two cents
-------- Messaggio originale --------
Da: supervinx <supervinx at libero.it>
Data:13/08/2015 08:28 (GMT+01:00)
A: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Oggetto: R: Re: Writing 8" floppies with SuperCard Pro
He told me there's no Linux support. I should try Keirf's utils or access the hardware with a serial connection.
May be I could try the Supercard in a VM.
-------- Messaggio originale --------
Da: supervinx <supervinx at libero.it>
Data:13/08/2015? 08:25? (GMT+01:00)
A: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Oggetto: R: Re: Writing 8" floppies with SuperCard Pro
Hi!
A bit OT.
I tried the fdadap card successfully reading and writing SD and DD disks, together with a standard ISA controller.
Had to try a bit, since not every disk controller manages SD writes.?
So the FDADAP should be ok, and the problems lie on the Supercard side.
I contacted the Supercard guy, in order to know if there's a Linux support. I've no windows machines, only some specialized DOS one.
-------- Messaggio originale --------
Da: John Foust <jfoust at threedee.com>
Data:13/08/2015? 04:46? (GMT+01:00)
A: cctalk at classiccmp.org
Oggetto: Re: Writing 8" floppies with SuperCard Pro
At 07:27 PM 8/11/2015, Josh Dersch wrote:
>Thus far I've been successful in creating images of floppies, but less successful in writing them back out.? Thus far I've tried a pair of Shugart 851s and a Qume QumeTrack 842.? I'm using a DBit FDADAP (http://www.dbit.com/fdadap.html) to deal with cabling and the TG43 signals.
I'd tried the SuperCard Pro / FDADAP combo last March with no success.
I hope to return to the task.? Maybe it was a problem with my drive(s).
- John
