ARM HP-12C devkit and cable?

[Thomas Radtke]

(08-05-2014 06:33 PM)Jeff O. Wrote:  I’m not sure if I understand your hope. Did you hope to somehow cut the 15C rom portion out of the 15C LE firmware, cut the 12C rom portion out of the 12C+ firmware, then insert the 15C rom into the hole in the 12C+ firmware so that its emulation layer would then run the 15C code?

Not exactly. I do have the 15C ROM image. Since we got the emulator sources, it shouldn't be impossible for some clever people to figure out how to replace the 12C firmware.