>
>Subject: RE: CompuPro floppy controller differences
> From: "Chuck Guzis" <cclist at sydex.com>
> Date: Sun, 10 Sep 2006 16:37:41 -0700
> To: cctalk at classiccmp.org
>
>On 9/10/2006 at 3:53 PM Allison wrote:
>
>>>CCS did have some 5.25" disk formats (both 48tpi and 96tpi) supported.
>>>I have no idea whether they ever used them as boot disks.
>>
>>I'd have to read the boot rom source. Who knows it's been years since
>>I read the FDC manual so it could be wired in, the controller does
>>do 5.25. I'd bet a penny there is no reason why not.
>
>Must be possible as my notes say all 5.25" formatsl reserved 6 cylinders*2
>sides for the boot tracks. On the 512 and 1024 bytes-per-sector versions,
>that's about 60K. On the 256 byte/sector version its about 55K for the
>boot.
CP/M boot image is CCP (2k), Bdos(3.5k) and bios (.5k->3.5k), assuming a
large bios the whole show is 9k. IF we add the two secondary boot sectors
(assume 128byte sectors) to that it's 9.25k. Likely, even that is oversized.
Standard SSSD 8" is two tracks reserved for boot(6656bytes!).
Looked at the manual, the boot is generic enough that it grabs the first
two sectors and jumps to that code. Sequence is Rom boot, seconday boot
using the rom read/write routines and the seconday boot loads the whole
show. That code is CCBOOT. The CP/M image once loaded jumps to BIOS
Coldboot and that initializes everything and starts the show.
The manual says two tracks on 8" and 3 tracks on 5.25 with track 00 being
128 byte single density only. NOTE the manual says tracks not cylinders.
FYI: the standard rom has a MOSS monitor (console is 8250 at 40h) and
also carries read write primitives and boot. If you had a board with
8250 serial on it that could be configured for address 40h that board
would be easier to boot on a system without a boot disk in hand.
Allison
>Date: Fri, 8 Sep 2006 22:41:09 -0400
>From: "Teo Zenios" <teoz at neo.rr.com>
>My latest acquisition came in today, a Mac IIci, that I wanted to
>use as an OS 6.08 machine
> with a Daystar Turbo 040 (68040/33) accelerator. Anyway after
>cleaning up the system and
> I took the card out and notice there was a capacitor missing on the
>back with a nasty looking
> black burn mark. So I started looking around inside for the burn
>metal part and notice I did not
> smell or see smoke or little capacitor parts (its a surface mount
>with no numbers on it)
>So what I want to know is how the thing functioned at all without
>the cap (burnt carbon acted
> as a capacitor in some way)? and what caused it to stop working.
It looks as if that cap (C54) ties the upper righthand pin of the
oscillator, which I think is pin 14 or Vdd.
As someone else wrote, it is probably just a decoupling cap, but it
may be hard to tell for certain as I believe that the Daystar boards
have more than four layers, which means that there are traces we
cannot view.
>If anybody have an original Daystar Turbo 040 33Mhz card with the
>cache on a separate board
> could you let me know (if possible) what value C54 s supposed to
>be? The cap looks to be tied
> into one or two legs of the oscillator chip that controls the CPU
>(Ecliptek EC1100 16.667Mhz
> 93-10).
There are no markings on C54. It looks just like the two caps next
to (below) it, but there are no characters which would betray a
value. I don't have a capacitance meter.
Jeff Walther
Work is moving to a new building after 20 years so some strange stuff
is appearing. If multiple people want the same thing the one offering
something PDP-8 in trade wins, someone with immediate need, otherwise I
randomly pick. You pay shipping from 20817 Maryland. Email me direct
if interested.
1) Multibus I stuff.
Bus analyzer - hook up to terminal and capture whats going on on bus
Wirewrap proto card - .3, .4, .6 dip capable
Possibly an extender card - We used to have them but haven't seem them
appear yet.
2)
Stardent manuals and distribution tapes - heavy.
3)
Intel PL/M 86, I2ICE, AMD 29k, TI 340xx (graphics processor) manuals.
Is there any problem with punching the left side of a floppy so you
can write to the other side of a floppy in a 1541 drive?
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh at aracnet.com (primary) | OpenVMS Enthusiast |
| MONK::HEALYZH (DECnet) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
Hi,
Sorry to bother you, but after searching the web I found your posting (from
2004...). Since I want to upgrade the HD in my Toshiba as well, I wondered
if you ever got it to work?
Thanks for any info you can give me.
Ric-Paul Hammink (Netherlands, also 4010CDT w/W95 and 96Mb)
PS: background info: I cannot even get it to recognize a second identical
4.327Gb Toshiba hard-drive... (one partition FAT32), I just formatted it to
2x2Gb in FAT to see if it will recognize it now.
Your original posting:
Does anybody know how to get a Toshiba 4010CDT to accept a larger hard disk.
It comes with 4 GB but when I want to work with three operating systems
(MSDOS; modern Windows and LINUX) this will be a problem if I also want to
include applications! Conversely, I am satisfied with the computer
otherwise, although it is somewhat older by now, and would like to upgrade
instead of retiring it or maintaining two Laptops in order to have space for
the bigger operating systems. I did look at Toshiba's site but found nothing
except some information that such support is NOT provided by them! They
suggest an alternative company but this company does not show any sign of
supporting my model. I also would be happier to find a way to alter the BIOS
and buy a HDD locally, though I did find one company offering hard disks
which they suggest will work with the 4010CDT, while giving no clue that
they in some way deal with the BIOS problem. (In any case, it would mean
importing the HDD, with a bunch of associated problems, especially if
something goes wrong. I have my fill of that trouble!) Thanks to anyone able
to help. Bob
Answer from Andrew:
On Thu, 2004-02-19 at 07:17, R. Mueller wrote: > Does anybody know how to
get a Toshiba 4010CDT to accept a larger hard > disk. > I also > would be
happier to find a way to alter the BIOS and buy a HDD locally, > though I
did find one company offering hard disks which they suggest will > work with
the 4010CDT, while giving no clue that they in some way deal with > the BIOS
problem. www.shoptoshiba.com indicates that Toshiba has up to a 60 Gigabyte
drive upgrade that is compatible with the Satellite 4010CDT. I got there
>from a link on www.csd.toshiba.com , in case you were interested... So as
long as you got your BIOS updated to 8.20 (found at
<http://cdgenp01.csd.toshiba.com/content/support/downloads/1400cv82.exe>)
you should be ok with going to your local computer store and getting a 2.5
inch hard drive up to 60 GB in capacity, and putting it into the little
"carrier" thingamabob the original drive came in, and there you go... They
want $379 for the 60 GB one, though... It comes with a 3 year warranty, so
it might be ok... ENU (www.enuinc.com) in Portland has 20, 30, 40 and 60 GB
laptop drives in stock, from $106 to $175... Before purchasing, you should
get the original drive out of the laptop, open the carrier, and see where
the mounting screws that mount the drive to the carrier are located. OLDER
ones have the mounting holes in the corners of the drive, newer ones have
them in towards the middle of the sides of the drives. Yours is probably a
newer one. TTFN Andrew
>From my own (accidental) experiments, I found that if a C128
powersupply is used on an A500, the machine will seem to work, but
appear to have a flaky floppy and sound. Most frustrating - I though
my A500 to be junk material until I used the proper supply.
The C128 on the other hand didn't seem to mind the Amiga supply, not
surprisingly.
Joe.
>
>Subject: RE: CompuPro floppy controller differences
> From: Fred Cisin <cisin at xenosoft.com>
> Date: Sun, 10 Sep 2006 12:41:53 -0700 (PDT)
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>> > I looked at the CompuPro disk image on Dave Dunfield's site and it's
>> >for an 8" drive. The defining thing for me is getting a CP/M 2.2 image in
>> >5.25" format. I've found another controller, from CCS (California Computer
>> >Systems) that might work, too. So does anyone have a 5.25" CP/M 80 image for
>> >either of these two boards?
>
>DSDD 8" should fit just fine on "1.2M" 5.25"
>
>On Sun, 10 Sep 2006, Allison wrote:
>> All my CCS disks are 8" I'd have to look to see if the controller even did
>> 5.25 it's been so long. I do remember the CCS used a banking scheme that
>> didn't agree with most of my systems.
>
>CCS did have some 5.25" disk formats (both 48tpi and 96tpi) supported.
>I have no idea whether they ever used them as boot disks.
I'd have to read the boot rom source. Who knows it's been years since
I read the FDC manual so it could be wired in, the controller does
do 5.25. I'd bet a penny there is no reason why not.
Allison
Folks,
It has come to my attention that I have a total of six Exidy Sorcerer
computers, and just as many Rockwell AIM-65's, and a few SYM-1's.
While I like and enjoy them, I would like to trade one or two for a different
exciting vintage computer of similar value (i.e. not a Sinclair 1000).
Some things of which I am desirous:
- GRiD Compass 1101
- Ohio Scientific
- Sinclair ZX-80
- Heathkit H11
- Micro Ace
- COSMAC VIP
- Netronics ELF
- Anything else of interest (1970's, S-100, etc...)
Let me know-
Steve in So. Cal.
http://oldcomputers.net
Will a C128 power brick be able to handle an Amiga 500? It looks to
have a higher rating than the Amiga 600 brick I have (for that
matter, can it drive an A500).
Spent a lot of time up in storage, found a cable to let me hook my
A500 up the the Commodore 2002 monitor I use with the C64, and
*FINALLY* found a pair of Joysticks. Unfortunately they're Epyx
500JX sticks, and about the only sticks I've used that are worse
might be Commodore's clone of the Atari sticks. Also dug up two more
C64's (I think one is a C64c, do they say they're a "C" anywhere), a
1541 drive, a bunch of carts (including another Epyx Fastload), some
software, and a printer interface.
I seriously considered bringing the C128 and A500 back (thankfully
found the external drive also today), but decided against the A500
since I wasn't sure about the powersupply and it was getting to hot
to try to get back to the C128.
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh at aracnet.com (primary) | OpenVMS Enthusiast |
| MONK::HEALYZH (DECnet) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
