Just bought a new old stock HP-12C Gold

[Jlouis]

(10-30-2023 04:55 PM)Eric Rechlin Wrote:  

(10-30-2023 06:04 AM)HP-12C Wrote:  I'm not a computer programmer but this may help:

https://www.hpmuseum.org/forum/archive/i...-5171.html

Unfortunately the published SDK for the 12c only seems to be for the older AT91SAM7L128-based model, not the 2015+ model based on the ATSAM4LC2CA. The differences are probably fairly minimal, though, but I haven't looked into it to verify.

The programming cables are a bit different, though; the cable for the ATSAM4LC2CA is actually a bit simpler, since it speaks USB instead of TTL serial and doesn't need the level shifting chip.

Eric, it is so possible to flash the 15c firmware into these 12c?