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Spectrum 1-chip IDE interface <--> 2068?

2 messages · 2005-09-12 → 2005-09-12 · Yahoo Group era · View archive on archive.org

Participants: bryankvines, Jarek Adamski

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] Spectrum 1-chip IDE interface <--> 2068?

Jarek Adamski · Mon, 12 Sep 2005 16:53

Hello Bryan!

The half-disk interfaces have one disadvantage -
you cannot read the disk geometry.

If you would like to connect IDE to 2068 I would
recommend the IDE8255 (or PL3MEM), or YAMOD.ATBUS
interfaces.

The IDE8255 is simple 3-chip interface that gives
access to full capacity of harddisk and transfers
one byte in 19 tacts.
 http://8bit.yarek.pl/interface/yamod.ide8255/

IDE8255 is build-in into PL3MEM interface, that
has 64 or 128kB ROM and 32kB SRAM. The memory can
work like in ZX+3 (don't require 128kB RAM) and
the 32kB RAM is used to run ZXVGS. PL3MEM requires
twister board to be connected to TS2068.
 http://8bit.yarek.pl/interface/zx.pl3mem/


On TS2068 you can use two operating systems:

ZXVGS in P3M version (with PL3MEM) or UPB version
(requres RAM in DOCK or EXROM). ZXVGS provides
access to .TAP, .Z80 files and TR-DOS emulation.
 http://8bit.yarek.pl/system/zxvgs.p3m/

CPM22QED UPB is CP/M 2.2 compatibilie system that
can use the same partitions as ZXVGS does.
 http://8bit.yarek.pl/system/zxvgs.upb/


Now I'm working on movies played from harddisk.
 http://8bit.yarek.pl/forum/viewtopic.php?t=99

--
Jarek Adamski
ul.Sobieskiego 10A/5
99-200 Poddębice
Poland
tel. +48603445345, +48436782892
mailto:[email]
gg:1895433

Do you wish to upgrade an 8bit computer?
See http://8bit.yarek.pl and contact me.

2. Spectrum 1-chip IDE interface <--> 2068?

bryankvines · Mon, 12 Sep 2005 12:58

I noticed here:
<http://members.tripod.com/~piters/zx.htm>

that there were a set of hardware projects, among which was this:
<http://members.tripod.com/~piters/simpif.htm>

which is a one-chip IDE interface. Apparently it uses half the capacity of a given hard drive by 
using an 8-bit data path instead of a 16-bit path; this is fine since the software for these 
computers is small.

Do any of the more technical folks here want to take a look at this and see if it could be 
adapted to the 2068? This looks like something even *I* can build. :)
--
bkv

Indexed under

TS2068 / TC2068 · Pico / modern interfaces (UnoDos, etc.) · Hardware projects & new boards