Subject:
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Re: is Mindstorm/RCX Y2K Compliant???
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 19 Jan 1999 01:31:00 GMT
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Viewed:
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1100 times
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Jasper Janssen <jasper@janssen.dynip.com> wrote:
> It's a microcontroller. Therefore it has an internal clock. Therefore
> it can suffer from Y2K, if it hasn't been removed.
What do you mean by "internal clock?" You seem to indicate that the
microcontroller inside the RCX somehow knows the date. It does not.
The only "clock" inside the microcontroller is a counter that counts
cycles. It starts at zero when you power up the microcontroller.
Actually, there are several such clocks.
Those clocks possibly exhibit a cycle 256 or cycle 65536 problem, or maybe
even a cycle 128 or cycle 32768 problem, but certainly not a year 2000
problem.
The firmware you download into the RCX also does not know the date. It
uses the aforementioned counters to count seconds, which it then displays
as hours and minutes since power on. The firmware has no notion of data,
and cannot even tell you the time of day, not to mention which year it is.
The RCX hardware has no Y2K problems.
-Kekoa
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Message is in Reply To:
 | | Re: is Mindstorm/RCX Y2K Compliant???
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| (...) It's a microcontroller. Therefore it has an internal clock. Therefore it can suffer from Y2K, if it hasn't been removed. (...) No it's not. We're not even close to getting everything away. How do you think we will fare if the world's (...) (25 years ago, 19-Jan-99, to lugnet.robotics)
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