Universal Memory Cartridge Board
4 messages · 2006-05-11 → 2006-07-19 · Yahoo Group era · View archive on archive.org
Participants: Jarek Adamski, M. Emrah Oral
Preserved from the Timex/Sinclair 2068 Yahoo Group (2001–2019), which is no longer online. Text reproduced from the archive.org archive; email addresses masked.
Messages
1. Re: [ts2068] Universal Memory Cartridge Board
M. Emrah Oral · Thu, 11 May 2006 14:45
What do I think ? I think I want to buy one. You have
one for sale ? Can I plug in a Spectrum 48 ROM chip
(HITACHI 16k ROM) if I solder a socket on it ?
--- Jarek Adamski <[email]> wrote:
> Hello!
>
> Some hours ago I've designed a board that could be
> used to make memory cartridges for TS2068.
>
> Dimensions 48mm × 48mm are taken from original board
> used in Spectrum Emulator for Timex Computer 2068.
> I've added a round hole (10mm) to give a change to
> remove the board when no cartridge case is used.
>
> However, I found two problems with insertion into
> TS2068: the cartridge slot has limited hight and
> it could be hard to remove the 48mm board from the
> cased slot. So, to locate the memory chip outside
> the limiter, I added a 30mm lengthener. It can be
> cuted out, giving a 48mm × 48mm board. In this case
> a female slot can be mouted on the cuted part,
> giving a free lengthener or cartridge splitter.
>
> Please see the board project under this link:
>
http://8bit.yarek.pl/interface/ts.cartridge/umcb-001.png
>
> The horizontal dashed line splits the main part from
> the lengthener.
>
> To see a list of possible memory configuractions,
> please look at:
> http://8bit.yarek.pl/interface/ts.cartridge/
>
> What do think about it?
>
> --
> Jarek Adamski
>
>
>
>
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
2. Universal Memory Cartridge Board
Jarek Adamski · Thu, 11 May 2006 21:19
Hello!
Some hours ago I've designed a board that could be
used to make memory cartridges for TS2068.
Dimensions 48mm × 48mm are taken from original board
used in Spectrum Emulator for Timex Computer 2068.
I've added a round hole (10mm) to give a change to
remove the board when no cartridge case is used.
However, I found two problems with insertion into
TS2068: the cartridge slot has limited hight and
it could be hard to remove the 48mm board from the
cased slot. So, to locate the memory chip outside
the limiter, I added a 30mm lengthener. It can be
cuted out, giving a 48mm × 48mm board. In this case
a female slot can be mouted on the cuted part,
giving a free lengthener or cartridge splitter.
Please see the board project under this link:
http://8bit.yarek.pl/interface/ts.cartridge/umcb-001.png
The horizontal dashed line splits the main part from
the lengthener.
To see a list of possible memory configuractions,
please look at:
http://8bit.yarek.pl/interface/ts.cartridge/
What do think about it?
--
Jarek Adamski
3. Re: [ts2068] Universal Memory Cartridge Board
Jarek Adamski · Wed, 17 May 2006 00:21
Hello!
On Cz, Maja 11, 2006 23:45, M. Emrah Oral wrote:
> What do I think ? I think I want to buy one. You have
> one for sale ?
I give some time to this project as some good ideas can
arrive. For example I've added a reset button in place
of the hole on board.
I'm going to order the boards in June, so I should have
them in second half of June. I have some more boards
to finish first (e.g. 512kB internal upgrade for TS2068).
> Can I plug in a Spectrum 48 ROM chip (HITACHI 16k ROM)
> if I solder a socket on it ?
Yes, in default configuration you will have it in Dock
back and runable with OUT 244,3.
BTW I don't know how in TS2068, but in TC2048 and TC2048
the Spectrum ROM placed in Home bank will not work
correctly, as these two computers need initialization of
255 port that isn't done by Spectrum ROM. TS2068 may work,
however.
--
Jarek Adamski
4. Re: Universal Memory Cartridge Board
Jarek Adamski · Wed, 19 Jul 2006 11:49
Hello!
I got the UMCB boards today. They look OK.
I must make some cartridges to test them,
but don't expect problems.
I've created a form and I hope it works
correctly. In case of problems please contact
me.
http://zxq.yarek.pl/h/?h=umcb
The prices shown are approximated.
The P&P price for small pieces below 100g
is 4 PLN in Poland, 2 EUR (3 USD) outside.
The cartridge boards can be used as:
- 16kB/32kB/64kB ROM in Dock,
- 16kB/32kB/64kB RAM in Dock,
- 32kB RAM + 32kB ROM in Dock,
- 16kB ROM in Home for TC2068.
In other words as AROS, LROS, Spectrum Emulator,
Dock RAM and CPM22QED. The CPM22QED requires
a disk interface, floppy or IDE.
Please see also:
http://8bit.yarek.pl/interface/ts.cartridge/
Any comments are welcome.
Jarek Adamski
Indexed under
Cartridges, EPROM & dumping · Hardware projects & new boards