64kB Dock cartridge with EPROM reading option
2 messages · 2006-11-15 → 2006-11-15 · 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] 64kB Dock cartridge with EPROM reading option
M. Emrah Oral · Wed, 15 Nov 2006 10:29
Would anyone be interested in selling me a ZX Spectrum emulator cartridge ?
Jarek Adamski <[email]> wrote: Hello!
I made a picture of my 64kB Dock cartridge, that was
made on universal memory cartridge board (UMCB),
using two 62256 chips (32kB) - one in 0.3" case,
second in 0.6" case:
http://8bit.yarek.pl/interface/ts.cartridge/0006a.jpg
As default the 0.6" one goes to low 32kB of Dock,
while the 0.3" in high 32kB. I've swapped them to
be able to replace the 0.6" SRAM with EPROM that
I want to read - this applies only for 2764, 27128
(and EEPROMs 28C64, 28C256, that can be programmed).
Have a good time!
Jarek Adamski
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2. 64kB Dock cartridge with EPROM reading option
Jarek Adamski · Wed, 15 Nov 2006 15:24
Hello!
I made a picture of my 64kB Dock cartridge, that was
made on universal memory cartridge board (UMCB),
using two 62256 chips (32kB) - one in 0.3" case,
second in 0.6" case:
http://8bit.yarek.pl/interface/ts.cartridge/0006a.jpg
As default the 0.6" one goes to low 32kB of Dock,
while the 0.3" in high 32kB. I've swapped them to
be able to replace the 0.6" SRAM with EPROM that
I want to read - this applies only for 2764, 27128
(and EEPROMs 28C64, 28C256, that can be programmed).
Have a good time!
Jarek Adamski