On Jan 3, 2007, at 6:43 PM, Michael Newman wrote:
I was definitely led astray by the introductory material and the
tutorials. They all talk about milliseconds and provide examples
such as Blink where 1000 milliseconds is used as a timer argument
and is described as a 1 second interval.
From the blink code and readme:
Blink is a basic application that starts a 1Hz timer and toggles
the red
LED every time it fires. It is a very simple program that is little
more than a demonstration of TinyOS programming.
command result_t StdControl.start() {
// Start a repeating timer that fires every 1000ms
return call Timer.start(TIMER_REPEAT, 1000);
}
Well, to be fair, the tutorials and apps like Blink are intended to
be the simple introduction to TinyOS. A discussion of binary kHz and
decimal kHz might be a bit beyond what the app is supposed to
demonstrate. The TinyOS 2.x tutorial doesn't mention milliseconds
explicitly, and does reference TEP 102. One of the issues we always
run into with TinyOS documentation is the huge spectrum of user
backgrounds, ranging from "how do I set an environment variable" to
"platform X needs to configure GPIO pin Y to state Z on
initialization because of condition foo." That's why there are
multiple forms: the general conclusion is that no single document
will be able to satisfy everyone, so there are layers.
Phil
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