DMA port "update" ideas..

Super ST Project. Lets create a awesome new ST! Fix all the bugs and add more cool stuff!
kodak80
Posts: 113
Joined: Sat Oct 21, 2017 1:14 am
Location: Brisbane, Australia
Contact:

Re: DMA port "update" ideas..

Post by kodak80 » Sun Oct 28, 2018 12:33 pm

exxos wrote:
Sun Oct 28, 2018 12:29 pm
kodak80 wrote:
Sun Oct 28, 2018 12:25 pm
This may be another source but not PCB mount:
Thanks, it could be possible to bodge them in with a adapter pcb or something I guess...
Yep, that was my thinking. Would need some right-angle pins and maybe a 3D printed plastic block to have the pins go through with a couple of square nuts on either side to mount the hex nuts.
20b-25-pin-300x300.jpg
20b-25-pin-300x300.jpg (15.59 KiB) Viewed 1027 times
Maybe the right-angle pins would be enough on their own. The plastic may only be needed to mount the nuts on each end.
Atari Falcon 030 | Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
Admin of Atari ST Review Magazine Archive: http://www.ataristreview.com

User avatar
exxos
Site Admin
Site Admin
Posts: 6953
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: DMA port "update" ideas..

Post by exxos » Sun Oct 28, 2018 1:42 pm

I saw these ...
1.jpg
1.jpg (33.29 KiB) Viewed 1021 times
https://www.amedia-computer.com/en/hard ... apter.html

So as thats not a proper connector, if a 25way DB25 for example was done, it could still plug into it... and it would allow Ultrasatan to be used on a 25way connector... would have to be careful about if it was inserted incorrectly though...

Doesn't solve old DMA drives, but I guess there is less need for adapter cables for old drives to be used on the new MB... But cables could still be made.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

User avatar
Icky
Moderator
Moderator
Posts: 1154
Joined: Sun Sep 03, 2017 10:57 am
Location: UK

Re: DMA port "update" ideas..

Post by Icky » Sun Oct 28, 2018 7:07 pm

exxos wrote:
Sun Oct 28, 2018 1:42 pm
I saw these ...

https://www.amedia-computer.com/en/hard ... apter.html

So as thats not a proper connector, if a 25way DB25 for example was done, it could still plug into it... and it would allow Ultrasatan to be used on a 25way connector... would have to be careful about if it was inserted incorrectly though...

Doesn't solve old DMA drives, but I guess there is less need for adapter cables for old drives to be used on the new MB... But cables could still be made.
If we went to a 25 way we would be back again, as you righty say, adaptor cables. Its a bit chicken and egg this trying to preserve 100% compatibility :(

User avatar
IngoQ
Site Admin
Site Admin
Posts: 769
Joined: Tue Aug 22, 2017 8:38 am
Location: Germany

Re: DMA port "update" ideas..

Post by IngoQ » Mon Oct 29, 2018 12:19 pm

Lotharek has DB19 plugs in his store, maybe worth a shot asking him?

https://lotharek.pl/productdetail.php?id=74
Ingo :geek:

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” - Antoine de Saint-Exupéry

User avatar
exxos
Site Admin
Site Admin
Posts: 6953
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: DMA port "update" ideas..

Post by exxos » Mon Oct 29, 2018 12:30 pm

IngoQ wrote:
Mon Oct 29, 2018 12:19 pm
Lotharek has DB19 plugs in his store, maybe worth a shot asking him?

https://lotharek.pl/productdetail.php?id=74
We can get the plugs no problem.. we need pcb mount sockets...
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

User avatar
IngoQ
Site Admin
Site Admin
Posts: 769
Joined: Tue Aug 22, 2017 8:38 am
Location: Germany

Re: DMA port "update" ideas..

Post by IngoQ » Mon Oct 29, 2018 12:57 pm

Yes I know. As far as I know, he had these ACSI plugs made, like he had the Atari SIO plugs made. Maybe it is possible to offload the making of pcb mount sockets to him?
Ingo :geek:

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” - Antoine de Saint-Exupéry

User avatar
exxos
Site Admin
Site Admin
Posts: 6953
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: DMA port "update" ideas..

Post by exxos » Mon Oct 29, 2018 1:05 pm

IngoQ wrote:
Mon Oct 29, 2018 12:57 pm
Yes I know. As far as I know, he had these ACSI plugs made, like he had the Atari SIO plugs made. Maybe it is possible to offload the making of pcb mount sockets to him?
Have a look at this post...

viewtopic.php?f=19&t=1260&start=70#p12443
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

User avatar
IngoQ
Site Admin
Site Admin
Posts: 769
Joined: Tue Aug 22, 2017 8:38 am
Location: Germany

Re: DMA port "update" ideas..

Post by IngoQ » Mon Oct 29, 2018 1:56 pm

Oh I see, probably Lotharek was part of that group buy...
But he had the SIO plugs made: http://atariage.com/forums/topic/206363 ... ari-plugs/

Admittedly these are much simpler than the pcb mount sockets, so just ignore my rambling ;)
Ingo :geek:

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” - Antoine de Saint-Exupéry

User avatar
exxos
Site Admin
Site Admin
Posts: 6953
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: DMA port "update" ideas..

Post by exxos » Mon Oct 29, 2018 2:18 pm

IngoQ wrote:
Mon Oct 29, 2018 1:56 pm
But he had the SIO plugs made: http://atariage.com/forums/topic/206363 ... ari-plugs/
I had not seen that... Looks like the costs are too high though :(


I guess if it was simple, he would have already started producing them as a proper connector for ultra Satan..

I can see it just ending up being a normal 25 way connector at this rate.. At least a good thing there is we can route power to the connector as well..
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

User avatar
IngoQ
Site Admin
Site Admin
Posts: 769
Joined: Tue Aug 22, 2017 8:38 am
Location: Germany

Re: DMA port "update" ideas..

Post by IngoQ » Mon Oct 29, 2018 2:51 pm

And if someone really needs it, adaptors could be made, like in here: viewtopic.php?f=19&t=1260&start=80#p12455

Maybe not the prettiest thing on earth, but functional. For more common expansions like the UltraSatan, a direct attachable cable from DB25 to IDC20 could be a simple option. The included power suppy would be nice as well with the added benefit of not having two separate power supplies and therefore having two ground potentials.
Ingo :geek:

“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” - Antoine de Saint-Exupéry

Post Reply