If you have been following exxos' threads on the H2 board and the ALPHA 16MHz Mode you will of noticed that a few boards have been springing up to help us do some testing for the H2 board.
The first of the boards is the ALPHA CPU Expansion board which will allow us to test 68000 DIL boards like the IDE DEV board, SEC 50MHz booster etc. on the ALPHA.
https://www.exxosforum.co.uk/forum/viewt ... 849#p21806
However there are more expansion components coming for the H2 such as the Fast RAM board
https://www.exxosforum.co.uk/forum/viewt ... =20#p21866
What this means is the H2 design has 4x expansion 68000 DIL headers as can be seen here:
https://www.exxosforum.co.uk/forum/viewt ... =20#p21866
So to help test this setup on the ALPHA we have come up with the ALPH CPU Quattro board which will plug into the ALPHA CPU Expansion board and give us the ability to plug all these expansion boards in to test how it will work for the H2.
And no if you plug 4x 68000's in the 4 sockets and plug it in it doesn't make a quad core ST
ALPHA CPU Quattro Board
Re: ALPHA CPU Quattro Board
Now theres an idea, wheres exxos when you need him
If it ain't broke, test it to Destruction.
Re: ALPHA CPU Quattro Board
Already plotted a Dual Core ST in another thread a few months back
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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.
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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.
Re: ALPHA CPU Quattro Board
Looky what I got...
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.
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.
Re: ALPHA CPU Quattro Board
Yeah I remember that a while back, wasn't that to farm out video or audio cycles away from the main CPU?
If it ain't broke, test it to Destruction.
Re: ALPHA CPU Quattro Board
Yeah, Was trying to work out if I could basically build a mini "ST" where basically a 68000 would have its own RAM, and basically could be used for playing audio so it did not use any main CPU power... Of course that processor could be used for anything, but of course it would not have access to anything but its own RAM.
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.
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.
Re: ALPHA CPU Quattro Board
It is an interesting idea, similar to what Sega did with the Megadrive I believe. It has a 68000 and a Z80 inside.
If it ain't broke, test it to Destruction.
Re: ALPHA CPU Quattro Board
Cool! did not know that!
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.
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.
- rubber_jonnie
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Re: ALPHA CPU Quattro Board
Yeah, you can read about it here: https://hackaday.com/2015/11/06/winning ... ral-study/
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: ALPHA CPU Quattro Board
ahh IO CPU kinda thing then... on that basis the ST is already a "dual CPU" as the keyboard chip does IO stuff.. Well may not exactly a CPU.. but the Z80 can do a lot more than just keyboard IO processing.rubber_jonnie wrote: ↑Mon May 20, 2019 8:00 pm Yeah, you can read about it here: https://hackaday.com/2015/11/06/winning ... ral-study/
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.
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.