HP41C with Rp Pico attached

[blackjetrock]

A bit more progress. I have the RP2040 attached via a module port, which loses the keyboard entry function but retains everything else. It's now powered via the HP41c as well. I have fitted a 16Mbyte flash chip to this PCB instead of the Pico's 2Mbyte so more code and ROM images can be stored. The USB works as well so data could be transferred over that as well. There are spare GPIOs which are taken out to a connector. My code runs fine on this and you can see it in the video emulating a couple of ROMs.

https://youtu.be/e8J7r-Oih8E


Andrew