HP 15c CE - New firmware update officially available!

[Steve Simpkin]

(08-02-2024 12:10 AM)AnnoyedOne Wrote:  ...
The HP-15C CE (and later HP-12C Platinum's) reportedly use the Atmel/Microchip ATSAM4LC2CA SoC.
...

While the later versions of the HP-12C (made after 2015) do indeed use the Atmel/Microchip ATSAM4LC2CA with HP NUT emulation, the later HP-12C Platinum's use the GPLB31A processor which is based on a 6502 uP core.
https://en.wikipedia.org/wiki/HP-12C#HP_.../_Prestige