PC+AY
ZXNet echo conference «zx.spectrum»
From Golovskih Andrey → To All 30 July 1997
┌─────────────────── Hello, ─────────────────────────────── ────>
└────────────────────── dear All! ────────────────────>
But I had an idea. I don’t know if it’s new among you all, but
maybe someone might be interested in it.
Has anyone tried to connect the hardware of the AY-8910/12 to an IBM? Maybe this is somehow real? Maybe it’s worth coming up with such a device, like adliba only on AY?
Or attach it to the LPT/COM/GAME;) port... I think, since it’s so difficult
to emulate it perfectly on SB, then native sounds will sound more pleasant...
Who here can come up with this? I'll be honest, I can't do much;(
Except to draw a diagram of the AY suspension on the Z80;) You may remember that at the Mitinsky
market there were... three types...: AY; AY+HCH; AY+HF+Kempston.. But that's not the point...
[Team Sinclair 48k]
┌─────── ──────┐ ──────┐ ┌──────┌───┐ tm |-\ ─────────────────> ┐
└──────┘└──┘└──┘└──┘└──┘ └──────└───┘ -oo-o-+ ─────────────────> ┘
... Smile again
From Andrew Mikheyev → To All 30 July 1997
Hello, Golovskih!
In a letter dated Wednesday July 30, 1997, Andrey Golovskih informed All:
GA> But I had an idea. I don’t know if she’s new among you all,
GA> but maybe someone will be interested in her. Has anyone tried to connect
GA> hardware to an IBM AY-8910/12? Maybe this is somehow real? Maybe it's worth
GA> to come up with such a device, like adliba only on AY? Or screw it
GA> to the LPT/COM/GAME;) port... I think since it’s so difficult to emulate it perfectly in
GA> on SB, then the native sounds will sound more pleasant... Who
GA> here is able to come up with this? To be honest, I can’t do much;(Except
GA> to draw a diagram of the AY suspension on the Z80;) Maybe you remember, at the Mitinsky market
GA> there were... three types...: AY; AY+HCH; AY+HЧ+Kempston.. But that’s not the point
GA>...
This is quite real. For AY to function, 2 control signals and 8 data lines are required. All this can be found on LPT. There's only one thing you won't find there - a 1.75 megahertz frequency generator. You'll have to make your own generator.
But two logical chips that decode the port address will become unnecessary.
Regards, Andrew. Wednesday July 30 1997 17:00.