|Re: mostly off track note to Andres;|
Message #12 Posted by Vieira, Luiz C. (Brazil) on 22 Oct 2001, 6:25 a.m.,
in response to message #11 by db(martinez,california)
maybe (as happens sometimes) I did not express my actual concern that was about time-counting clock. Both I understand:
- If a glitch happens at the system clock when an internal routine is running (SIN, FACT, etc.), what would really happen? Would it cause a 'glitch' in the final result, too? I believe that faster than normal clock + spurious hi-freq noise in a 350KHz system (is it correct for the HP41?) would allow it, NOT specific cause it. If we go deeper in the gates circuitry, a glitch could switch some states ON or OFF inadvertently, mostly in a MOS, battery operated family.
- If a glitch happens at the system clock, would it affect the time-counting clock? As stated before, if the system is updating its own clock by using machine's reference (say, Accuracy Factor) it may also happen.
I just thought about what would happen, system ON or OFF (OFF desirable, right?), by closing a magnet to the ReedSwitch so the system clock would speed up or down. Would it affect the time-counting clock?
This thread, as many others, has many intriguing stuff. I really appreciate this kind of discussion. Thanks, falks.
(About spelling: you are lucky not spelling Portuguese...)