HP-10bII+ hardware

[Mark]

Hello,

I recently purchased a 10bII+ calculator, simply because its color scheme is identical to the 48S/SX and the 32SII which I really like. Second reason is that there are enough scientific functions for a daily use -I'm not a financial guy. ...and the 3rd reason is that I wanted to have some fun.

Well, it was a good surprise to me : The machine is light but looks robust, the keyboard tactile feel is good to me even if it doesn't match the 20th-century HPs -a bit too much noisy maybe. And the display quality is really good, much like the Voyager series.

From a software side, it appears (please correct me if I'm wrong), based on quick tests I've done, that the arithmetic base code of the Saturn series is used, and emulated presumably on an ARM SoC as is done in the 20b/30b.

I was curious to see exactly what's inside, and I saw 2 screws between the batteries compartment and the JTAG connector... but it's not that simple. The calculator halves remain firmly tied, and I don't want to deteriorate my machine.

So, is there someone who could tell me if the SoC used in this machine is the AT91SAM7L128 found in the HP20b / 30b ? To be honest it's only technical curiosity ; currently I don't have any special project in mind.

Many thanks in advance,
Marc