HP Forum Archive 21

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42S with nonvolatile RAM Message #1 Posted by Lyuka on 10 Dec 2013, 9:56 a.m. Long time no see. I just made modifications of an HP 42S to make its memory nonvolatile by using an F-RAM. It seems successful so far. Double speed HP 42S with nonvolatile RAM Lyuka

Re: 42S with nonvolatile RAM Message #2 Posted by Massimo Gnerucci (Italy) on 10 Dec 2013, 12:59 p.m., in response to message #1 by Lyuka Congrats! You are a 42S master modder. ;-)

Re: 42S with nonvolatile RAM Message #3 Posted by aurelio on 10 Dec 2013, 2:13 p.m., in response to message #1 by Lyuka No words.....................thank-you for sharing your great work!

Re: 42S with nonvolatile RAM Message #4 Posted by Geir Isene on 10 Dec 2013, 3:51 p.m., in response to message #1 by Lyuka I am envious. Not of the calc, but of your knowledge and abilities. Thanks for the inspiration.

Re: 42S with nonvolatile RAM Message #5 Posted by Nacho on 12 Dec 2013, 8:31 a.m., in response to message #4 by Geir Isene Dear Lyuka, you cannot imagine how many times I have visited your web, your mods are so well documented. I am curious, how many 42s's do you have??? regards

Re: 42S with nonvolatile RAM Message #6 Posted by Lyuka on 13 Dec 2013, 8:52 a.m., in response to message #5 by Nacho Thank you for your compliments. Actually I have two defective 42S (and two other flawless one, of course ;-) I really think 42S useful, and for they were defective, I had no hesitation to modify them. Lyuka

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