This MOTHERFUCKER was hiding from me for three FUCKING DAYS now! All the damn time I had corrupt display memory cause of it!

Context: CS and DC were accidentally swapped on the PCB! Not a hardware issue thou. The pins can be remapped in software.

A lecturer for an Embedded Systems module who gave out drivers for an LCD display with no documentation at all, and about 4 functions for writing to the display and 3 initialisation functions, spent ages trying to actually decide what each function did by which memory addresses it was changing and how (made even better by the fact a good bit of the functions were written in Assembly since it was Embedded C)🙃