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General Category => Other retro => Topic started by: genesis8 on 00:28, 10 March 21

Title: Amstrad PPC512/640 ISA Expansion Board by Retro Theory
Post by: genesis8 on 00:28, 10 March 21
Too late and too lazy : https://www.genesis8bit.fr/archives/index.php?news_id=1596 (https://www.genesis8bit.fr/archives/index.php?news_id=1596)
I so badly need one !
Title: Re: Amstrad PPC512/640 ISA Expansion Board by Retro Theory
Post by: TotO on 11:01, 10 March 21
Hehe... Do you own with computer?

Because, it is just an expansion port adapter with some buffers / line drivers.
I'm pretty sure that you will find someone to build one for you for less than 20€.
Title: Re: Amstrad PPC512/640 ISA Expansion Board by Retro Theory
Post by: genesis8 on 14:47, 10 March 21
Quote from: TotO on 11:01, 10 March 21
Hehe... Do you own with computer?

Because, it is just an expansion port adapter with some buffers / line drivers.
I'm pretty sure that you will find someone to build one for you for less than 20€.
I have a PPC 640 which I use with a parallel ZIP drive.
Before this video, using ISA cards was only a theory, the 2 ports were already on the machine but never used before. Now it's reality.
So, yes I will find someone to build it for me as I am not able to do it. Though I will wait a bit since it's a prototype at the moment, but a working one.
Title: Re: Amstrad PPC512/640 ISA Expansion Board by Retro Theory
Post by: TotO on 14:59, 10 March 21
Sure, it is theory up to someone do it. ;D

The expansion connectors A & B pinouts are known and they are the ISA signals.
https://www.seasip.info/AmstradXT/ppctech/section1.html (https://www.seasip.info/AmstradXT/ppctech/section1.html)

If nobody do it in the future from the PPC640 community, I will take a look for you.
Title: Re: Amstrad PPC512/640 ISA Expansion Board by Retro Theory
Post by: zhulien on 01:14, 24 February 22
looks pretty awesome!

https://www.youtube.com/watch?v=-HxvCWhKLoc

There was a CPC guy from France going back a LONG time ago that made an ISA expansion for CPCs, what ever happened to that project?
Title: Re: Amstrad PPC512/640 ISA Expansion Board by Retro Theory
Post by: genesis8 on 09:09, 24 February 22
Symbiface is the spiritual son of the CPC-ISA
Title: Re: Amstrad PPC512/640 ISA Expansion Board by Retro Theory
Post by: ComSoft6128 on 09:38, 24 February 22
Quote from: zhulien on 01:14, 24 February 22looks pretty awesome!

https://www.youtube.com/watch?v=-HxvCWhKLoc

There was a CPC guy from France going back a LONG time ago that made an ISA expansion for CPCs, what ever happened to that project?
This chap?
http://siou.free.fr/
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