Re: Help needed NOW (real time) - stuck in a loop Message #72 Posted by John Wasilewski on 10 Oct 2007, 4:35 p.m., in response to message #71 by Seth Morabito
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I have submitted this to HP:
HP 32sII scientific calculator e-mail support
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Select a problem area.*
hardware
When did you purchase your product?*
Sep2007
What is your serial number (SN)?*
CNA 72100255
If there is an error message, please specify.
None
What is your model/product series number?
HP 35s Scientific calculator
Please provide the exact problem description.*
THIS IS NOT A REQUEST FOR HELP WITH MY PROGRAM.
It is a report of a disastrous hadware fault that prevents me from developing serious software and forces me to erase all of the work stored on the calculator every time it happens. In short, when a simple bug in my program puts the calculator in an endless loop, it refuses to accept any keyboard command to make it stop and let me find my error, and I am forced to erase all memory every time.
The HP35s scient.calculator sometimes becomes stuck in a loop which I cannot break out of. Ive tried C R/S, C+R/S, C+GTO, C+GTO+i, (from the manual) and none of these works. I have now lost all of my work THREE TIMES by having to use pin-reset, which clears everything from memory.
Ive lost three programs, one of which was 473-lines long, which I am now facing having to key in for a fourth time before I can debug it. The problem is that the calculator cannot be interrupted when stuck in a loop. This does not happen with all continuous loops but it does happen EVERY TIME with a particular piece of code. Result: impossible to debug a simple program and I lose ALL MY WORK since the beginning of time on the HP35s. Please dont reject my request with an unhelpful comment and then just ignore me.
THIS IS NOT A REQUEST FOR HELP WITH MY PROGRAM.
It is a report of a hadware fault - the calculator becomes uncontrollable unless I erase everything.
Please list previous troubleshooting steps, or information that can help HP assist you.
After having the calculator just hang for the first two times that I had to cold-reboot with the pin in teh back, I added some debug steps before trying again. Unfortunately, I used a PSE not a STOP statement, but this is why I know it is stuck in a loop. It just keeps displaying my PSE message for half a second then displaying "RUNNING" for 2.5 secs,
then repeating forever, whilst refusing to let me interrupt it.
From a user-group forum, I now know that my calculator, serial number CNA 72100255, is an early one. I have learned also that the same calculator from a later manufacturing batch does not display this errant behaviour. The serial number of the "good" calculator was CNA72600768. For more information please see http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/forum.cgi?read=126072#126072
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John Wasilewski
54 Yarnells Hill
North Hinksey
Oxford
OX2 9BE
Has anything changed since the unit functioned properly (installation of SW, settings, cabling, etc.).
Nothing.
Except that I have had my 10 Oct 2007 12:51 request for technical support on this (HP ref KMM20289652V17107L0KM) rejected by "Mike" of HPs "Total Care" at support-e@hpcalcs.com because I dont live in North America apparently.
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John
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Wasilewski
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John@Wasilewski.co.uk
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John@Wasilewski.co.uk
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+44(0)77900891107
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United Kingdom
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