CURRENT PROTOTYPE STATUS (SEC 64MHz 68000)

Information and news about the 68SEC000 64MHz booster.
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rpineau
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by rpineau »

nice !
:excited: :yay: :bravo:

So next ... 64 MHz ?! :D
Working ones : MegaSTE (68020) / TT030 / Falcon with AB040 & Eclipse / 1040STF
Need testing : Falcon with CT2
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exxos
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by exxos »

rpineau wrote: Tue May 29, 2018 10:05 pm So next ... 64 MHz ?! :D
I need to find faster oscillators next :roll: only one I have is 75Mhz now.. And it does not even try to reset :(... Really need to find something like 55MHz , 60Mhz, 65Mhz.. or something like that..
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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rpineau
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by rpineau »

Ok.
You need to beat us .. we've done 50MHz 68030 on our board.. so you are at 50MHz .. time to go higher :)
Working ones : MegaSTE (68020) / TT030 / Falcon with AB040 & Eclipse / 1040STF
Need testing : Falcon with CT2
troed
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by troed »

exxos wrote: Tue May 29, 2018 10:07 pm
rpineau wrote: Tue May 29, 2018 10:05 pm So next ... 64 MHz ?! :D
I need to find faster oscillators next :roll: only one I have is 75Mhz now.. And it does not even try to reset :(... Really need to find something like 55MHz , 60Mhz, 65Mhz.. or something like that..
If only shipping was faster ... I still have three 64MHz 5V ones from my doubleST stuff. Not the square DIL-8 version though, but DIL-14

Actually the seller I bought from still have them, EU, fast shipping: https://www.ebay.com/itm/4x-64-MHz-Crys ... 4ad908842d
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exxos
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by exxos »

troed wrote: Tue May 29, 2018 10:27 pm If only shipping was faster ... I still have three 64MHz 5V ones from my doubleST stuff. Not the square DIL-8 version though, but DIL-14
Thanks, I found a 64MHz just :D Though the CPU doesn't boot.. So likely around 50MHz is the limit.. maybe 55Mhz if there was such a thing..
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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 ~
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by exxos »

rpineau wrote: Tue May 29, 2018 10:24 pm Ok.
You need to beat us .. we've done 50MHz 68030 on our board.. so you are at 50MHz .. time to go higher :)
Will try 52MHz then ;) Having problems finding any oscs at all , mouser all seem out of stock of everything :roll:


Actually my Falcon RSO modules start from about 50Mhz I think.. So will grab one of those tomorrow then I can go up in 1MHz steps easily :)
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
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by Atarian Computing »

That's crazy. Well done! In terms of integer division, how would a 50mhz 68000 compare to TT's 32mhz 030?
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Icky
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by Icky »

Brilliant work indeed. It’s like breaking the sound barrier :D
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by exxos »

Atarian Computing wrote: Wed May 30, 2018 4:27 am That's crazy. Well done! In terms of integer division, how would a 50mhz 68000 compare to TT's 32mhz 030?
Well 030 has a cache so will be faster for the same clock speed, plus 030 is more efficient core.. you would have to benchmark it with GB6 and see what it outputs with and without caches enabled.. Which would be useful anyway as we don't have a TT benchmark vs stock ST.. or Falcon in fact..
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.
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Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Post by rubber_jonnie »

Fantastic job!

:bravo: :cheers:
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...
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