harry@moncam.co.uk (Jangling Neck Nipper) (06/23/89)
A general purpose (?) memory expansion board is being designed.
It will piggyback on top of the 68000, which will have to be
removed and a socket put in its place, so that the 68000 will
go on the piggyback board and into the socket (well they're only
a fiver...). We are currently proposing a two meg expansion,
which can have its base address configured by jumpers, so you can
upgrade 512K, 1 meg or two meg. If anyone is interested in getting
a board, it will be about #15; we want to know numbers now to see
it we can afford to do extras like solder resist and silk screening.
If anyone has any useful ideas of what else they might want on it,
bearing in mind the space considerations (I've got a 512; I've no
idea what the innards of any others are like; is space any tighter?)
please say.
Email to harry@moncam.co.uk or emmo@moncam.co.uk; preferably to emmo,
as he's the techno-whiz (I'm just a humble programmer).
PS1: I noticed that the keyboard chips are *outside* the metal screen;
isn't that a bit illegal?
PS2: Does the memory sizing *really* go 128K -> 512K -> 2M, skipping 1M?
Is 1M per bank not allowed? I read this from a document called
"Engineering Hardware Specification of the Atari ST Computer System"
dated 22nd March 1985 - okay, don't laugh, I know it's a bit long in
th' mouth-bones, but I've no idea how much things have changed; I
only got my ST four days ago... perhaps one of you Atari guys could
help on that one...
PS3: Can a machine as old as mine (about 4 years old) take these wonderful
new TOS ROM's everyone's talking about? Would there be any advantage?
PS4: Can the default font be changed?
PS5: How much needs a-doing to be able to use a fully SCSI HD like a Wren?
(brief encouragement/discouragement welcome); does an almost-SCSI to
SCSI adaptor exist?
--
Flames welcome (I'm cold).
I'm not an expert, and I hope I don't claim to be one...