Create ULA for €5?

Discussions about Sinclair ZX80 and ZX81 Hardware
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Paul
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Re: Create ULA for €5?

Post by Paul »

mrtinb wrote:
Sat Jun 17, 2017 9:44 pm
I actually started this thread for my ULA project. I've not come so far yet, but it's not in the grave. :)
Glad to hear this.
In theory, there is no difference between theory and practice. But, in practice, there is.

Lardo Boffin
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Re: Create ULA for €5?

Post by Lardo Boffin »

Just wondering if there is any news on this? I have two zeddys in need of a ULA now.

Many thanks!

Lardo
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
Spectrum +3

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mrtinb
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Re: Create ULA for €5?

Post by mrtinb »

Don't hold your breath as my time is very limited.

I think Paul is further ahead.
Martin
ZX81, Lambda 8300, Commodore 64, Mac G4 Cube

daybyter
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Re: Create ULA for €5?

Post by daybyter »

Was this board already posted?

http://gnarlygrey.atspace.cc/developmen ... ml#upduino

It's a nice small form factor board with 5k LE and even quite some ram. It's not 5$ , but 8$ is not _that_ much more.

No clue, if the IO pins are where they are needed, but an adapter socket might fix this problem?

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Paul
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Re: Create ULA for €5?

Post by Paul »

This board hasn't been posted yet.
34 IO aren't enough and it's not 5v compatible.
Other than that it's a neat little board.
Kind regards Paul
In theory, there is no difference between theory and practice. But, in practice, there is.

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