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15C-LE Blinking - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: 15C-LE Blinking (/thread-202740.html) |
15C-LE Blinking - dbatiz - 10-23-2011 Is it normal for an overflow condition to make the display blink on a 15C? On my 15C-LE, if I type 70!, i get 9.999999 99 blinking. I can then keep doing other problems, but the display keeps blinking until I use the "back arrow" key. Is this normal? Very Respectfully,
David
Re: 15C-LE Blinking - Michael de Estrada - 10-23-2011 Yes. It is normal.
Re: 15C-LE Blinking - MK-52 - 10-24-2011 The flag 9 is set to true when overflow happen. (HP-15C Owner's Handbook page 45) Thank you.
Re: 15C-LE Blinking - dbatiz - 10-24-2011 My apologies. Thank you for the prompt responses. I didn’t have my manual handy when I posted the question. I don’t remember if the 11C had any blinking error conditions for overflow. Very respectfully,
David
Re: 15C-LE Blinking - MK-52 - 10-24-2011 I checked HP-11C Owner's Handbook (Japanese version). The manual doesn't state the blinking. However, I don't have 11C, and so I cannot check it on real machine. Edited: 24 Oct 2011, 2:42 a.m.
Re: 15C-LE Blinking - Katie Wasserman - 10-24-2011 The 11C doesn't blink on overflow or for any other reason.
Re: 15C-LE Blinking - Nicholas Winterer - 10-24-2011 The blinking feature cost extra, of course.
Re: 15C-LE Blinking - Tim Wessman - 10-24-2011 How about we make a LE 15c that blinks constantly. That should definitely be worth the price I think you will agree.
TW
Clairvoyant 15C-LE Blinking - Howard Owen - 10-24-2011 Make one that displays your answer before you enter it and you'll have an even bigger hit. :)
Re: 15C-LE Blinking - Gerson W. Barbosa - 10-24-2011 No need to apologize. The HP-15C is the only Voyager that blinks on overflows, as far as I know. Cyrille once called this a "strange 15C behavior", perhaps the first indication that the HP-15C LE was on its way to becoming true :-) Regards,
Gerson.
Re: 15C-LE Blinking - uhmgawa - 10-24-2011 Quote:
Technically there is a single BLINK opcode in the 11c rom
[Edit: the same appears true for the 12c/16c firmware versions Edited: 24 Oct 2011, 6:03 p.m.
Re: 15C-LE Blinking - Dave Britten - 10-24-2011 You can also manually trigger the blinking display with SF 9, if you have some need to do that in a program (signal an error, or what have you).
Re: 15C-LE Blinking - Marcus von Cube, Germany - 10-25-2011 Yes you can. SF 9 starts blinking, CF 9 stops it. At least on the 15C. I think the 11C doesn't have flag 9. (Just checked it: It has only two flags.) Edited: 25 Oct 2011, 1:59 a.m.
Re: 15C-LE Blinking - Jeroen Van Nieuwenhove - 10-25-2011 And, curious enough, the blinking behavior can be disabled again not only by entering CF 9, but also by pressing the backspace key, as well as by powering off/on the calculator.
Re: 15C-LE Blinking - uhmgawa - 10-26-2011 Quote:
That behaviour is intentional given the firmware disposition.
Re: 15C-LE Blinking - Miguel Toro - 10-26-2011
Quote: Well, not any key, as an example, numerical keys do not disable blinking. You have to use backspace or ON/OFF on the 15c.
Re: 15C-LE Blinking - uhmgawa - 10-26-2011 Quote: I believe we're tripping over semantics here.
From the perspective of the r2d2 display hardware, each
Re: 15C-LE Blinking - Miguel Toro - 10-26-2011
Understood now!
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