Sigh. I must not write technical stuff while tired.
On Jul 18, 8:16, Pete Turnbull wrote:
> On Jul 17, 22:44, Robert Armstrong wrote:
> > Dumb question #1 - is it conventional to install the FPF11 in the
> slot
> > immediately below the CPU, thus displacing all the memory boards
down
> a
> > slot?
Yes, for an 11/23. For an 11/24, no, it goes after the KT24 and the
memory but before anything else.
> http://www.classiccmp.org/pipermail/cctech/2003-October/020356.html
>
> > Dumb question #2 - the handbook says, "[the FPF11] ...
complements
> the
> > KEF11-AA". Does this mean that the FIS option chip must _also_ be
> > installed in the 11/23+? Or must it _not_ be installed?
>
> No. No. That is, it doesn't matter :-)
Should be "No. Yes." Since the FPF11 plugs into the same socket that
the FPP option chip plugs into (the one next to the CPU), of course you
can't have both at once.
There are no dumb questions, only dumb answers -- and my previous was
apparently one of them. Sorry!
--
Pete Peter Turnbull
Network Manager
University of York
Since I've got the User's Manual (and the machine, which I got with a
crashed HDD) kicking around... Translated:
Chapter 1 - Getting Started:
"Most computer games rely on joysticks as input devices. Exactly how the
joystick is used depends much on the game itself.
Remark: Joysticks are not included.
Warning: Broken joysticks can prevent the TT from initializing correctly. If
you encounter any problems, you should switch off the computer, remove the
joystick(s) and turn the TT on again.
Connecting Joysticks
Joysticks use the same connector as the Atari Mouse and can be plugged in on
either side of the keyboard."
Appendix F- Pinouts:
"Mouse/Joystick 0 (DE9 male)
1 - XB/Up
2 - XA/Down
3 - YA/Left
4 - YB/Right
5 - middle Button
6 - left Button/Fire Button
7 - +5V
8 - Ground
9 - right Button/Fire Button
Joystick 1 (DE9 male)
1 - Up
2 - Down
3 - Left
4 - Right
5 - reserved
6 - Fire Button
7 - +5V
8 - Ground
9 - unused"
Hope that helps...
Arno Kletzander
Stud. Hilfskraft Informatik Sammlung Erlangen --- www.iser.uni-erlangen.de
Hi Tony,
>> So - I have a bit of a paradox : the "2kb/2716" label suggests
>> ROM's, and the 64k of RAM on the mainboard also indicates that
>> all the RAM is on the lower board, however the ROM strings
>> suggest that this may be the only ROM.
>
>IIRC, a real Apple ][ has up to 64K RAM (48K on the mainboard, 16K on a
>language card) and some ROMs. The ROMs are bank-switched with the top 16K
>(Language card) RAM.
That's correct. There are also two language cards, one just has 16k to
replace the ROM's, and one has more memory which can be bank switched
into the 16k ROM address space.
>It sounds like you effectively have a built-in language card (that would
>be quite sensible), and you have RAM in place of the ROM (possibly to get
>round Apple copyrights). The 5517 RAMs take the place of ROMs -- they're
>loaded once on boot-up, and then contain the resident BASIC, etc. The
>EPROM you have sounds like a bootloader for these RAMs.
Thats exactly what I am thinking.
Still trying to figure it out - never gets as far as trying to read the
disk - does chip select the ROM and appear to read some code from it,
but does not make it much further.
Btw, do you (or anyone) have the pinout for 4564 DRAM's? I'm wondering
if they are in backwards (as noted previously, someone "worked" on this
unit) - 16 pins, showing +5 on pin 8 and Gnd on pin 16 - backward to
most chips, although I do recall there were some memory chips with odd
power... Lack of working main RAM would explain it's behavour.
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Vintage computing equipment collector.
http://www.parse.com/~ddunfield/museum/index.html
Hi,
Does anyone have any information on a "kxmu extended memory" unibus card
>from Konelar corp? (of Bedford Ma, no less).
Looks like some sort of banked memory, but google doesn't return anything.
-brad
On Jul 17, 22:47, Robert Armstrong wrote:
>
> Is there a description anywhere of the backplane changes that need
to
> be made to upgrade a BA11-N (H9273 backplane) for 22 bit addressing?
All you need to do is take 4 lengths of wire-wrap wire (or something
similar) and join together all the pins that connect to the BC1
fingers, all the BD1, all the BE1, and all the BF1.
If you can view (or print) PostScript files there's a diagram showing
the finger layout at
http://www.dunnington.u-net.com/public/PDP-11/
QBusConns.ps is actual size, QBusConnsBig.ps is somewhat larger. I
expect there are text lists of the signals/fingers around the web too.
If you plan to use a processor with PMI memory you might also want to
link AF1 on the first (top) slot to AF1 on the slot (or two slots)
immediately below. That's the SRUN connection; without it the RUN LED
won't light.
--
Pete Peter Turnbull
Network Manager
University of York
Is there a description anywhere of the backplane changes that need to
be made to upgrade a BA11-N (H9273 backplane) for 22 bit addressing?
Thanks,
Bob Armstrong
I just got my hands on an FPF11 board, and naturally I want to connect
it to my 11/23+ right away! I understand that the 40 pin header on the
card edge connects to a 40 pin DIP plug that goes into one of the
microcode option sockets on the 11/23+.
Dumb question #1 - is it conventional to install the FPF11 in the slot
immediately below the CPU, thus displacing all the memory boards down a
slot? Or does the FPF11 go in the first Q/Q slot (slot 4) ? Or does it
even matter?
Dumb question #2 - the handbook says, "[the FPF11] ... complements the
KEF11-AA". Does this mean that the FIS option chip must _also_ be
installed in the 11/23+? Or must it _not_ be installed?
Dumb question #3 - does it matter which one of the microcode option
sockets you plug the FPF11 into?
And... #4 - how do you know if the thing's working? Short of having
the diagnostics for it, of course, which I don't.
Thanks,
Bob Armstrong
Hi,
I am trying to resurrect a dead Apple2 clone for a friend.
This machine is called "Orange Peel", and is packaged as a
small rectangular box with three slots accessable on one
end by sliding back the top, and a separate keyboard.
I believe the machine is running, at least it clears video
memory to zero (familier '@' pattern) on powerup, but goes
no further - the ROM/RAM configuration seems odd:
The main board contains 8 4564 DRAM's along with video
and I/O circuitry etc.
The CPU lives on a separate board which is suspended above
the mainboard on long, hard-to-insert pins.
The CPU board has 7 sockets. At one end is a single 2716
EPROM chip labled "New boot", near the other end of the
line is a label on the board which reads "2kb/2716" - this
suggests that the whole line should be ROM's (which would
be consistant with other apples), however the remaining
sockets contain 5517 CMOS RAM's !!! - clearly there is no
other code on this board.
Inside the "New Boot" ROM, the only strings I can see are:
FBPASIC OR INTBASIC FILE REQUIRED
INSERT APPLICATION DISC AND PRESS ESC
This suggests that it loads basic from disk and would not
have it in ROM.
So - I have a bit of a paradox : the "2kb/2716" label suggests
ROM's, and the 64k of RAM on the mainboard also indicates that
all the RAM is on the lower board, however the ROM strings
suggest that this may be the only ROM.
Perhaps it loads code from the disk into "Pseudo-ROM" 5517 bank?
(If so, anyone got the disk code)?
The fact that several of the riser pins were not inserted and
bent under the CPU board indicates that someone with low skills
"worked" on this system at one point. The fact that the attached
power cord was cut off indicates that it was given up on ... so
I cannot assume that it is configured correctly.
Is anyone familier with this system? Can anyone tell me if the
CPU board accepts RAM or if it should be ROM? If so, does anyone
have the proper code? If it loads the RAM's from disk, does anyone
have the disk?
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Vintage computing equipment collector.
http://www.parse.com/~ddunfield/museum/index.html
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Tested a bunch of Apple II machines (and clones ) today and found 2 with a
funny ROM
8409 G
C19746
341-0168-A
Apple 83
the start screen is APPLE with two linked S's and a degree symbol
Also a Orange peel but it all it produced was a screen of @
The IBM PC3270 booted up with DOS3.1
The IBM 5150's booted to basic
All in all a good day of testing and I cleared off a shelf!
- --
Collector of vintage computers
http://www.ncf.ca/~ba600
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> There is a version of Spacewar for the PDP-11
Date: Sat, 1 Mar 2003 03:19:40 +0000 (UTC)
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"Geoffrey G. Rochat" <777geoff777(a)777pkworks777.777com777> writes:
>a DCC-16, which was a Nova clone. And although I've never seen one in
>action, I've no doubt SpaceWar was very popular on the PDP-11/05-based GT05.
I have a friend who wrote a spacewar for the *GT40* which we also
played on a GT42. I still have the code and the original control
boxes we built for it (wired directly to a parallel I/O board,
A DR11, if I remember correctly).
Megan Gentry
Former RT-11 Developer
