NEW LAYOUT

All information relating to the Alpha plus all the WIP threads etc.
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exxos
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Re: NEW LAYOUT

Post by exxos » Mon Jul 30, 2018 9:47 pm

Forgottenmyname wrote:
Mon Jul 30, 2018 9:46 pm
I did notice the bad dma bit if that helps :D
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Re: NEW LAYOUT

Post by rubber_jonnie » Mon Jul 30, 2018 11:20 pm

I have several 'Bad DMAs' that should be ideal for this project!

:dizzy:
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
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Re: NEW LAYOUT

Post by exxos » Tue Jul 31, 2018 2:15 pm

Might be easier to see with this image...

top.png
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Re: NEW LAYOUT

Post by rubber_jonnie » Tue Jul 31, 2018 2:17 pm

Oh yeah, much clearer thanks :)

:bravo:

BTW, where does the RAM board fit, on the connector south of the Glue, or the connector south of the MMU? EDIT: Ahh, wait, just looked at your Falcon RAM board, and I'm guessing it uses both :)
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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Re: NEW LAYOUT

Post by exxos » Tue Jul 31, 2018 3:05 pm

rubber_jonnie wrote:
Tue Jul 31, 2018 2:17 pm
BTW, where does the RAM board fit, on the connector south of the Glue, or the connector south of the MMU? EDIT: Ahh, wait, just looked at your Falcon RAM board, and I'm guessing it uses both :)
RAM board fits above the MMU... I guess it could use my 4MB MMU plug-in board also.. Never really considered it..

Atari freaks did have some 1MB Falcon RAM board on eBay last year that I cannot see any at all on there now :roll:


They look like this..
falcon_memory.jpg
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https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
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Re: NEW LAYOUT

Post by rubber_jonnie » Tue Jul 31, 2018 3:24 pm

I take it that there will still be a limit of 4MB RAM initially?
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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Re: NEW LAYOUT

Post by exxos » Tue Jul 31, 2018 3:25 pm

rubber_jonnie wrote:
Tue Jul 31, 2018 3:24 pm
I take it that there will still be a limit of 4MB RAM initially?
Yeah.. until the MMU is replaced with FPGA.. but won't be any time soon..

The Falcon RAM board will be gone then, it will be smaller SMT SRAM on a plug in board probably.
https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.

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Re: NEW LAYOUT

Post by rubber_jonnie » Tue Jul 31, 2018 3:31 pm

exxos wrote:
Tue Jul 31, 2018 3:25 pm
rubber_jonnie wrote:
Tue Jul 31, 2018 3:24 pm
I take it that there will still be a limit of 4MB RAM initially?
Yeah.. until the MMU is replaced with FPGA.. but won't be any time soon..

The Falcon RAM board will be gone then, it will be smaller SMT SRAM on a plug in board probably.
Ok, cool.
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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Re: NEW LAYOUT

Post by PhilC » Tue Jul 31, 2018 5:24 pm

where do I put all these 4164 rams chips i've got hundreds of?
If it ain't broke, test it to Destruction.

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Re: NEW LAYOUT

Post by rubber_jonnie » Tue Aug 07, 2018 10:12 am

Not wanting to get ahead of myself, but how about another version down the road that fits a micro ATX case ;)
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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