exxos's Atari, Amiga & retro forum

My old STFM 4MB SIMM adapter isn't being produced anymore. But I have designed the next gen adapter today which uses 2 SMT DRAMs instead.

It's the same DRAM chips as I use on my 4MB MMU plug-in adapter kit, so it saves me having to stock some items and helps keep costs lower :)






It will be some time before I get the test PCB's. Though I thought I would post that the boards are being worked on :)

HOMEPAGE

http://www.exxosforum.co.uk/atari/last/4mb/index.htm

:bravo: just what I have been looking for.

Impressive you designed this whilst struck down with serious man flu :)

Icky wrote: 17 Jan 2019 21:31 :bravo: just what I have been looking for.

Impressive you designed this whilst struck down with serious man flu :)

Took me a while but got there in the end. Not felt this bad for years :(

Got these boards now :)

Try and find some time to build one of and test soon.. I already have sockets the motherboard to plug these into try them out.. So really is just a matter of soldering the 2 chips and header pins...

Just a quick post saying I finally started to solder one of these up.

I already have a STFM with sockets to take such boards for testing them. So if things go well (which they never do) I maybe have working one later tonight..

Well at least it found 4MB :lol: :roll:

OK so as normal my soldering sux :)


Now to leave it on YAART for a bit :)

Nice board. No longer need to hunt for a SIMM. :)

Will have to get one of these when they are in your web store.

Started building a second one...


My test bed...

.. and yes my "soldering bench" has now regressed to being a small box on the floor....

Initial batch of 6... just come out of the US cleaner :) Need to solder the header pins next...