HP-10bII+ hardware

[Katie Wasserman]

(02-19-2015 07:07 PM)Mark Wrote:  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.

Others have mostly answered your questions about processor and functionality but not how to get inside (if you're still curious).

Remove the 2 screws in the battery compartment then take a very thin, strong plastic or metal tool and run it around the seam between the two halfs. I use a metal guitar pick. There are 4 catches on the right side that have to be released, 4 on the left side, two on the top and one on the bottom. Each is about 1 cm long which is why it's such tight fit. It just snaps back together of course.

If this puppy had RPN it would be favorite calculator as it has all the functionality I need for everything I do (programming aside).