I don’t expect to make a living from RetroShield but this Sunday I had an unusual surge of orders. I didn’t know what happened. As I was printing the labels, I realized it must have been hackaday.com because I had submitted my project there. It’s an honor to be featured on hackaday.com.
Well, I got several emails and feedback (thanks for all). I had to work on my other projects, but will switch to RetroShield for a few weeks to look into these ideas.
Feedback so far:
- What would it take to emulate KIM-1?
- Investigate Arduino Due (fast processor but requires 3.3V <-> 5.0V level shifters)
- Optimize code to get more speed
- currently getting around 150~170 kHz.
- Can uP use Arduino’s GPIOs?
- Finish write-up’s already mentioned on website (geda/gschem, Z80)
- More processor support (68008, 8031, 8080, 8085, Z8)
- how can we add floppy support?
- combine processors into one PCB
- this was my very first prototype but I didn’t like the way it turned out; i.e. wrong processor could be inserted into the wrong socket, switching processors meant removing the IC’s back and forth, and some Z80 upside-down with respect to 6502 and 6809E (proto1-top, proto1-bot, proto2).
