Subject:
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Re: Reading sensors at equal intervals.
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 25 Apr 1999 13:59:23 GMT
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Viewed:
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1225 times
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Dennis Clark <dlc@verinet.com> wrote:
> In lugnet.robotics, Kekoa Proudfoot writes:
> > By standard firmware, I assume you mean using the byte codes ala NQC or
> > something similar. If you only want semi-precise timing, you can use the
> > wait opcode to delay for approximately 100 ms between sensor samples. If
> > you want something more accurate, you can make use of a 1 ms timer to get a
> > better measurement of the actual delay incurred, or you can combine the
> > wait opcode with busy waiting on a timer to make the delay exactly 100 ms.
>
> I though that the four "Timer()" values read out in 100ms increments only.
> Is there a way to get a 1ms timer with NQC?
You are right, the timer values as seen by the firmware are in 1/10ths of a
second. I lost myself in H8-land, which has a 1 ms timer that gets divided
down before being seen by the firmware.
-Kekoa
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Message has 1 Reply:
 | | Re: Reading sensors at equal intervals.
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| (...) <snip> (...) That looks like a "no" then... How does the timing of tasks work? I seem to recall reading somewhere that the firmware executes the tasks in sequence - is there any timing element to this, or does it just do task 1, then (...) (25 years ago, 26-Apr-99, to lugnet.robotics)
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