Hacking the fx-CP400 part 1: getting the firmware

https://the6p4c.github.io/2018/01/15/hacking-the-gc-part-1.html

https://www.casio.com/products/calculators/graphing/classpad-fx-cp400

SPOILER alert:

[…]Soon enough, I’ll write a Part 2 exploring the firmware image itself and the interesting SuperH architecture it runs upon. Thanks for reading this far. If there’s anything I can improve on in my writing, I’d love to hear it, send your constructive criticism my way!