World's smallest acceleator card atm

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Cyprian
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Re: World's smallest acceleator card atm

Post by Cyprian » Thu Oct 03, 2019 9:54 pm

tuxie wrote:
Thu Oct 03, 2019 9:09 pm
As long as he didn't extend the core, it will not run on ST
Because:
1. No Buserror
2. No Sync Businterface
3. No Busarbitration for giving the control to DMA
4. No full integrated Reset/Halt Logic

Because the Amiga didnt need it!
exactly,
the question is, whether needed pins (BEER/VPA/VMA/E/FCn ) are connected or no.
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8 Bit Dreams
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Re: World's smallest acceleator card atm

Post by 8 Bit Dreams » Sun Oct 06, 2019 10:02 am

well.. it was mentioned that this will be open-source, so if these lines are not connected - it will be possible to add them :!:
Found out that Vampire Core rev 0.1 is open-source also, so there is a good base to start from :P
https://www.majsta.com/modules.php?name ... cle&sid=80
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utri007
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Re: World's smallest acceleator card atm

Post by utri007 » Sun Oct 06, 2019 1:56 pm

Vampire core has some problems, it is not created to keep up compatibility, but add new features.

Other cores are better from my point of view.

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8 Bit Dreams
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Re: World's smallest acceleator card atm

Post by 8 Bit Dreams » Sun Oct 06, 2019 4:10 pm

Yes, indeed, Majsta started his project from 0, it is always hard to make first steps..this isn't something ready to go, rather something to start from.. Of course caches are not working, no mmu support and many more things to optimise, yet something we can use just right now...
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Cyprian
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Re: World's smallest acceleator card atm

Post by Cyprian » Sun Oct 06, 2019 4:16 pm

8 Bit Dreams wrote:
Sun Oct 06, 2019 10:02 am
well.. it was mentioned that this will be open-source, so if these lines are not connected - it will be possible to add them :!:
thats cool news
Lynx II / Jaugar / TT030 / Mega STe / 800 XL / 1040 STe / Falcon030 / 65 XE / 520 STm / SM124 / SC1435
SDrive / PAK68/3 / Lynx Multi Card / LDW Super 2000 / XCA12 / SkunkBoard / CosmosEx / SatanDisk / UltraSatan / USB Floppy Drive Emulator / Eiffel / SIO2PC / Crazy Dots / PAM Net
Hatari / Steem SSE / Aranym / Saint
http://260ste.appspot.com/

terriblefire
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Re: World's smallest acceleator card atm

Post by terriblefire » Wed Oct 09, 2019 12:42 am

Id love to be able to put BGA on my accelerators...

But people wouldn’t be able to build them.

I’ve never done BGA.
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adam
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Re: World's smallest acceleator card atm

Post by adam » Wed Oct 09, 2019 9:09 am

terriblefire wrote:
Wed Oct 09, 2019 12:42 am
Id love to be able to put BGA on my accelerators...

But people wouldn’t be able to build them.
Try us:)

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Re: World's smallest acceleator card atm

Post by terriblefire » Thu Oct 10, 2019 12:26 pm

I wouldn’t be able to reliably solder a BGA.
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go0se
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Re: World's smallest acceleator card atm

Post by go0se » Thu Oct 10, 2019 12:57 pm

I spent a significant amount of time, effort and money a couple of years ago attempting to master the art of BGA work. Admittedly it was with board repairs, and dealing with significantly larger chips than those pictured on that accelerator.

The outlay for decent IR equipment that will give you accurate and repeatable temperature profiles is significant. The "Heatgun and Hotplate" approach just won't cut it when the narrow temperature ranges required can mean the difference between success and chip/board delamination.

The element of trust and guesswork that just can't be completely eliminated when working with BGA when you are unable "see" your results also didn't sit well with me.

I found the experience fairly soul destroying and ended up selling all my BGA equipment and vowed never to attempt it again, I have great respect for those who can do it but I'm not ashamed to admit that it's beyond my capabilities to achieve consistent satisfactory results.

SMT soldering on the other hand is a pleasure! :)

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