Subject:
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Re: TOC4INT interrupt
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 19 Nov 1997 07:37:27 GMT
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Original-From:
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Chuck McManis <{cmcmanis@netcom.}spamless{com}>
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Viewed:
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1133 times
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MAR ERICSON wrote:
> Is there a limit to how long the system interrupt routine can last?
Yes, 1 mSec.
> What happens if all the instructions I place in there causes the whole
> interrupt to last more that 1 msec?
Time slows down (the tick counter is no longer accurate), your motors
get variations in their PWM signal, and you risk losing syncronization
with any servos you have out holding position.
--
--Chuck McManis http://www.professionals.com/~cmcmanis/index.html
All opinions in this message are those of the author. No warranty as to
the suitability or accuracy is stated or implied. Use at your own risk.
cmcmanis@netcom.com +1.408.524.4805
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Message is in Reply To:
 | | TOC4INT interrupt
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| How do you know when you are "using too much resources" when installing programs into the system interrupt? Is there a limit to how long the system interrupt routine can last? What happens if all the instructions I place in there causes the whole (...) (27 years ago, 19-Nov-97, to lugnet.robotics.handyboard)
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