exxos's Atari, Amiga & retro forum

Copied from FB. Target: Any 68000 computer.

https://www.buffee.ca/Nearing-production/

Has a ground plane :lol:

exxos wrote: 31 Jan 2021 13:48 Has a ground plane :lol:

He wrote that it actually got 3 ground planes. I chuckled a bit when I read it. :lol:

8 layers :)

I wouldn't like to build these by hand, that BGA chip would be a nightmare on a board that small, for me at least...

Saw this last night too. The 8 layer board seemed a bit mad

Buffee is a Dual-Inline-Packaged Motorola 68000 accelerator based on the Octavo OSD335x-SM available with 512MB or 1GB of integrated SDRAM and capable of providing (at least) 68040 400MHz level of performance

I want one :)

Says open source and can be fully assembled by jlc... I'd build one or test just out of curiosity..

exxos wrote: 31 Jan 2021 15:44 Says open source and can be fully assembled by jlc... I'd build one or test just out of curiosity..

I've just tried.
JLC dont seem to do many of the parts and some of them are not supported for assembly. The 0201 passives and the Crystal are both parts available from LCSC but not able to be added.
I'd be happy if you were able to just get the BGA chip done, but that's also one of the unavailable chips.

Unless I am doing something wrong of course, this isn't out of the question.

https://oshwlab.com/Renee/buffee-accelerator

I looked to see if supported the bus grant etc, can't do much on my old tablet, looks like pins go into the bga but can't see any source or anything.. I don't know about parts, maybe they out of stock or he's misunderstood how jlc works.. Either way, if its 3rd party assembly with 8 layers, I can't see it being cheap to make..

JLCPCB only does 6 layers!?