Last Updated or created 2024-09-30
UPDATE 20240927 PCBs are in
While testing on a breadboard is fast, I still want my 68000 on PCBs.
Breadboards are nice for testing, and I use them in the design stage.
But they will fail in the end.
Loose wires, oxidated contacts and alike.
So when I was testing using breadboard, I drew the schematics in KiCad.
I wanted to use Eurocards for this one. If I divide the whole system in system blocks, I can exchange and experiment parts.
(My 6502 uses another method to connect different cards)
- CPU and Clock (Plus power-on reset and step mode)
- Memory and ROM
- Storage
- Address decoding
- Sound
- IRQ Handlers
- Led Blinkenlights 🙂
- …
I wrote about Eurocards in the past.
So I’m using the VMEbus standard for my new design.
(Using the recently bought book I mentioned)
Backplane design is done. And currently being autorouted.
PowerLeds for 5 and 12V. On/Off switch and MOLEX power connector.
Kicad sources will be uploaded
In the past, I dumped my old eurocards and even a nice case I had.
UPDATE 20240927 PCBs are in
