These exact clones of vintage HP calcs are on my Android phone...

[Jlouis]

(09-26-2018 09:53 PM)ijabbott Wrote:  

(09-26-2018 03:08 PM)Jlouis Wrote:  This remind me that I a need to dump the Rom from my 27s, a good task for the weekend.

I also need to attempt some ROM dumps sometime for both my HP-42S and my HP-27S, but I don't have a HP 48 to use to receive the ROM dumps. I do have a HP 50g though, and I wonder if that can be used to receive ROM dumps? I also have an Arduino based "Red Eye" to USB serial converter which I may be able to use to receive the ROM dumps straight from the HP-42S or HP-27S to the PC after a bit of experimentation.

I don't know about the arduino red eye base, although I think if the red eye is in the same specifications of the pioneers, it is very possible, but the dump using the 50g unfortunately is not possible due the incompatibility between the calculators.

Look at this thread for further information.:

http://www.hpmuseum.org/forum/thread-346...s+Rom+dump

Cheers

JL