HP 15c CE - New firmware update officially available!

[AnnoyedOne]

I've read the above (technical) posts and all make a lot of sense to me. I've written keyboard/switch handling code multiple times before (in assembler and 'C') and have used some of the techniques described. What the HP-15C CE uses I have no idea.

I'm reminded of the old TI-30 calculator I had many decades ago. It worked great for a year or so then the keys would "bounce" constantly. I'd press '1' and end up with a display full of them! Totally unusable.

That was a hardware (cheap keyboard) issue mainly. Perhaps poor/non-existent denouncing as well.

I've never had any key bounce issues with my original HP-15C or HP-16C. They're old'n'slow though--just like me :-) Some newer/faster ones might behave differently.

A1