Finished Schematic, PCBs Incoming!

A project log for MENTAL-1, a Brainfuck CPU

A minimalist computer for a minimalist language

Trey KeownTrey Keown 02/03/2018 at 05:110 Comments

I recently spent a bit of time drawing up a proper schematic for MENTAL-1. I've had revised schematics laying around on sheets of paper for a while, but nothing official. However, I wanted to make a PCB implementation of MENTAL-1, so I fired up Altium and drew it up. You can find the hi-res schematic PDF here.

I've had this on a few sheets of paper for a while, but it's nice to have made a proper schematic.
I'm still learning when it comes to PCB design, but I think this one will turn out quite well. Since I've got a lot of room and I'm working with the larger DIP chips, It wasn't had to fit this on a two-layer board. All hand-routed, for extra fun.

For now, I'll be referring to this implementation as MENTAL-1P. It's a slightly modified design from MENTAL-1, but I'm not sure if it warrants a version number bump. I'll be posting updates here when I get and test the boards from Seeed.