Ace
A few months ago I found I had enough time on my hands to get on with something I 've been planning for 20+ years and that was to create a new Jupiter Ace. At one point I'd started porting the ROM to the Raspberry PI bits of it even run, but the problem was that the PI is quite a closed system finding out the details of the CPU and Graphics system is difficult and hidden behind a veil of secrecy and IP. The system I wanted to create would be simple and easy to understand at all levels. The first step was to find some schematics in a system I could get for free. Bodo Wenzel had done some nice ones here but in OrCAD which costs money. He did, however, provide images of the work so off I set with the free version of Eagle CAD. I downloaded the PDFs to get a good look. I translated the above eventually to Which is available in KiCad format here . Then built a cut down version to show the diagrams were correct. All the routing is done by FreeRouting because I'...
It's been a while. Maybe slow, slow, slower than you intended!. I'm very much a beginner and maybe out of my depth, but I wanted to make a Jupiter Ace replica. Minstrel 4 is available, but I want a usable keyboard!! and maybe save a few more bucks. I'm not sure how to order PCBs to be sent to the US. I'm guessing I can get one cheaper via China than the UK guys on Tindie (although maybe I have to order 5 minimum? How does that work?)
ReplyDeleteIt sure looks Cool !
DeleteThough : Could you not pop all those 74 TTL logic ICs onto a CPLD...XC95108 PLC84 ?? Would probably half the size of the PCB !
Hi.
DeleteFantastic Project !
Will this be available to buy ...and if so when ?