REMINDER - Stay logged in for at least 2 hours a week to get whitelisted.
Also it helps build a picture where our "good traffic" is coming from for detection scripts.
:o)

4MB STFM RAM SIMM ADAPTER REVISED

Upgrade your RAM from ST to Falcon.
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

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 :)


DSCF0052sm1.JPG


6.jpg


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
You do not have the required permissions to view the files attached to this post.
User avatar
Icky
Site Admin
Site Admin
Posts: 4383
Joined: 03 Sep 2017 10:57
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by Icky »

:bravo: just what I have been looking for.

Impressive you designed this whilst struck down with serious man flu :)
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

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 :(
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

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...

s.jpg
You do not have the required permissions to view the files attached to this post.
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

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..
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

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

IMG_3865.JPG
IMG_3864.JPG
You do not have the required permissions to view the files attached to this post.
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

OK so as normal my soldering sux :)

IMG_3866.JPG

Now to leave it on YAART for a bit :)
You do not have the required permissions to view the files attached to this post.
User avatar
Icky
Site Admin
Site Admin
Posts: 4383
Joined: 03 Sep 2017 10:57
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by Icky »

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

Will have to get one of these when they are in your web store.
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

Started building a second one...

IMG_3869.JPG
IMG_3870.JPG

My test bed...
IMG_3871.JPG

.. and yes my "soldering bench" has now regressed to being a small box on the floor....
You do not have the required permissions to view the files attached to this post.
User avatar
exxos
Site Admin
Site Admin
Posts: 28605
Joined: 16 Aug 2017 23:19
Location: UK

Re: 4MB STFM RAM SIMM ADAPTER REVISED

Post by exxos »

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

IMG_3902.JPG
You do not have the required permissions to view the files attached to this post.

Return to “RAM UPGRADES”

Who is online

Users browsing this forum: ClaudeBot and 4 guests