Subject:
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Re: NXT Firmware source code
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Newsgroups:
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lugnet.robotics.nxt
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Date:
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Tue, 19 Dec 2006 08:45:29 GMT
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Viewed:
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13182 times
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Dick Swan wrote:
> There are also two different specs that we're dealing with here. One
> is the number of times that complete flash can be rewritten (i.e.
> downloading complete firmware and the other is the number of times
> that an individual sector can be written (i.e. writing a user program
> to flash). I believe the conservative specs for these are 100 and
> 10,000 respectively.
Not to put too fine a point on it, but the 100 cycle limit is
only on the lock bits, I think. This is specified at the
extreme limits of voltage and temperature.
At normal room conditions, actual NXTs were reflashed (which
cycles the lock bits) at least 7,000 times before failure.
Your mileage, will of course vary :-)
Cheers, Ralph
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Message is in Reply To:
 | | Re: NXT Firmware source code
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| "Steve Lane yahoo.co.uk>" <stevenrobertlane@<n...pamplease> wrote in message news:JABnK0.15z@lugnet.com... (...) Fortunately the most common failure mode is a reduction in the "longevity" of storage. Out of box, the Atmel ARM flash is specified to (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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