Project STacy (STaceX, TOS 2.06 & others)

General discussions or ideas about hardware.
User avatar
IngoQ
Site Admin
Site Admin
Posts: 1071
Joined: Tue Aug 22, 2017 8:38 am
Location: Germany

Re: Project STacy (STaceX & others)

Post by IngoQ »

rpineau wrote: Tue Sep 19, 2017 3:22 pm As for the track length .. the shortest the better... always. If you intend to put more than one card... buffers .. buffers ... (data and address line at least).
Noob question: How do you do buffering?
Ingo :geek:

| Atari 1040STE@32MHz | Amiga 1200 (ACA1220) | Atari 800XL (U1MB, SIDE2) | Atari 130XL (Sophia DVI) | C64 (1541 Ultimate II, Rev3 RFMod Replacement) | TI 99/4A (F18A, 32k, FlashROM 99) | Sinclair ZX Spectrum 128 (Stereo, DivMMC) | Amstrad CPC664 (512k, M4 Wifi) | ... |
User avatar
exxos
Site Admin
Site Admin
Posts: 24080
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: Project STacy (STaceX & others)

Post by exxos »

IngoQ wrote: Wed Sep 20, 2017 8:09 am Noob question: How do you do buffering?
He is talking about using something like 74LS244, which can be used as a bidirectional bus transceiver. Buffering the address and databus for example, and can also be used to isolate the bus if necessary.

Similar was done on the DMA port on the STE for example.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Atarian Computing
Posts: 445
Joined: Tue Aug 22, 2017 4:27 am

Re: Project STacy (STaceX & others)

Post by Atarian Computing »

Screen Clips

Every STacy owner who's ever opened up their computer knows of the screen clips in question. My 2 units had most of the clips broken and various botched methods were used to fix it. I came up with the following fix and it's pretty perfect.

I 3D printed the following clip:
Clips.jpg
Clips.jpg (25.83 KiB) Viewed 6783 times
Here is a picture of a broken clip:
broken clip.jpg
broken clip.jpg (395.41 KiB) Viewed 6783 times
This is an original clip:
original clip.jpg
original clip.jpg (332.58 KiB) Viewed 6783 times
And here is a fixed clip after glueing it:
Clip Glued.jpg
Clip Glued.jpg (302.18 KiB) Viewed 6783 times
User avatar
Darklord
Posts: 971
Joined: Wed Sep 20, 2017 1:41 pm

Re: Project STacy (STaceX & others)

Post by Darklord »

Late to the party but I've been following this thread which is very
interesting. :)

As far as I know, best I could determine was that that STacy's
TOS version is pretty much identical to TOS v1.04. I know that
Brad told me he thought it was different because of the shadow
chip too. I did rip the TOS though and posted it somewhere (forgot
where exactly now) but some of the more knowledgeable people
looked it over and said it was the same (I think one of them was
PPera, IIRC).

Hope this helps. :)
Welcome To DarkForce! www.darkforce.org "The Fuji Lives.!"
Atari SW/HW based BBS-Telnet:darkforce-bbs.dyndns.org 1040
User avatar
rpineau
Posts: 534
Joined: Thu Aug 17, 2017 6:08 pm
Location: USA
Contact:

Re: Project STacy (STaceX & others)

Post by rpineau »

IngoQ wrote: Wed Sep 20, 2017 8:09 am
rpineau wrote: Tue Sep 19, 2017 3:22 pm As for the track length .. the shortest the better... always. If you intend to put more than one card... buffers .. buffers ... (data and address line at least).
Noob question: How do you do buffering?
As exxos said, 74ls245 (bi-directional so that bus masters can be on either side of the adapter) with control logic for the /DIR pin of the buffer chip.
If you're not afraid of SMD .. 74ABT16245 .. 16 bit bi-directional buffers.

Rodolphe
Working ones : MegaSTE (68020) / TT030 / Falcon with AB040 & Eclipse / 1040STF
Need testing : Falcon with CT2
Atarian Computing
Posts: 445
Joined: Tue Aug 22, 2017 4:27 am

Re: Project STacy (STaceX & others)

Post by Atarian Computing »

Thanks Darklord. Good to see you here as well :)

Here’s my latest addition:
STacy and CE.jpg
STacy and CE.jpg (242.08 KiB) Viewed 6764 times
I will have to design and 3D print a faceplate for it.
Atarian Computing
Posts: 445
Joined: Tue Aug 22, 2017 4:27 am

Re: Project STacy (STaceX & others)

Post by Atarian Computing »

I think this will do. Will have to clean it up a bit. I’ll look at painting it if I decide to paint the STacy.

CE Faceplate.jpg
CE Faceplate.jpg (345.4 KiB) Viewed 6758 times
Atarian Computing
Posts: 445
Joined: Tue Aug 22, 2017 4:27 am

Re: Project STacy (STaceX & others)

Post by Atarian Computing »

Holy crap! I had no idea how awesome CosmosEx is! Mine came with Raspberry Pi 3 so I had built in WiFi. I have a freakin’ CIFS shared drive on my TOS desktop wirelessly. Shared drive is on my Synology. This just blows my mind that this is actually on an almost 30 year old STacy.
User avatar
exxos
Site Admin
Site Admin
Posts: 24080
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

Re: Project STacy (STaceX & others)

Post by exxos »

Atarian Computing wrote: Sat Sep 23, 2017 9:11 am Holy crap! I had no idea how awesome CosmosEx is! Mine came with Raspberry Pi 3 so I had built in WiFi. I have a freakin’ CIFS shared drive on my TOS desktop wirelessly. Shared drive is on my Synology. This just blows my mind that this is actually on an almost 30 year old STacy.
Yes its pretty cool :). I have a folder on my PC desktop which is my Atari c: drive over WiFi :)
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Atarian Computing
Posts: 445
Joined: Tue Aug 22, 2017 4:27 am

Re: Project STacy (STaceX & others)

Post by Atarian Computing »

One of my STacy units had all the caps replaced. They did a pretty poor job aesthetically and possibly functionally as it is exhibiting classic bad cap symptoms. That inspired me to do a complete list of STacy caps using schematics and my other unit as reference. Here is the link to the PDF. I have used original specs.

https://drive.google.com/open?id=0ByRvu ... lF5TnoyWW8
Atari STacy Capacitor List.zip
(29.23 KiB) Downloaded 234 times
Post Reply

Return to “HARDWARE DISCUSSIONS”