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    Zurich, Switzerland

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  1. Soldering was not too bad, just a bit boring with that many pins Yeah, adding a ROM socket would considerably complicate the board (potentially call for more layers) and I think most people will be fine with just a cost-efficient FPU extension. Regarding the group buy - I still have 4 spare boards and sockets so I might consider just soldering those few for early adopters. I'll keep you posted
  2. Hi everyone, I spent some hours of my lockdown time during Christmas and worked on a simple FPU card for Macintosh Classic II. I've bought this little Macintosh some years ago - it just needed a recap to bring it back to life Yesterday, I have assembled the FPU board and I'm happy to announce that it works flawlessly and brings some sweet Floating Point performance improvements (more than 13x over no-FPU) (not that many applications actually take a good advantage of that) I have open-sourced the KiCad files so that everyone can use the project or pot
  3. That's great, thank you! I haven't found this one when looking for existing designs with at least basic glue logic descriptions.
  4. I'm new to the forum so first of all I would like to say hi I've recently start digging a bit into the accelerator topics. I found quite some references for 68000->68030 accelerators within the Amiga community - apart from TerribleFire's and Matze's designs that @Frobozz mentioned, you might find the original LUCAS article useful: http://kai.supramania.com/Electronics-Projects/AMIGA/LUCAS.pdf http://amiga.resource.cx/exp/lucas So far, it gave me the best explanation what is needed to run the CPU asynchronously w.r.t. to the bus clock of the rest of the system.
  5. I would be also very interested in getting one set if shipping to Switzerland is possible. Thanks for pushing this awesome project :)
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