Atom 32K SRAM expansion

[TheCorfiot]

And here she is

Don't laugh, but I wanted it to take as little space as possible..
TC

[oss003]

Ok TC ........... nice and easy

Greetings
Kees

[Prime]

That's like RAMROM board version 0.1 But still it works fine.

BTW should be ready to start building RAMROM boards next week, the boards are here but I need to check stock of all the components.

Besides I'm on holiday (just not at work) this week so am trying to relax

Cheers.

Phill.

[oss003]

That's like RAMROM board version 0.1

But then without ROM ....

@Phill: I don't know how the weather in England is but here in Holland it's pouring ..

Greetings
Kees

[roland]

Hey TC,

I'm really proud of you. Your first Atom extension board

Cheers,
Roland

[TheCorfiot]

Cheers guy's, it was just quick and dirty to tide me over until I get one of Phill's boards...
No rush though Phill, enjoy a well earned break.

Thank you too roland, I love my Atom, my expansion board has the nickname roly-poly..i wonder why lol..

TC

[roland]

We'll I used the same technique when creating my 1/2 MHz switch:

And in this way it is fitted into my Atom:

As you can see, the red wire leads to bit 7 of #BFFF so I can switch in software between 1 or 2 MHz.

[TheCorfiot]

Yes, more please....

I love this homebrew stuff....and the Atom is just perfect for it..

Cheers roly

TC

[Louis.m]

Hello 2 all,

If someone is still interested in a simple upgrade to 32K Low RAM with backup battery and write protect, see this article:
http://www.acornatom.nl/atom_nieuws/199 ... 941027.htm
(Dutch language, but with simple diagrams).