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author | Hanna Mendes Levitin <hanna@anomaly-3.local> | 2010-12-01 03:37:07 -0600 |
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committer | Hanna Mendes Levitin <hanna@anomaly-3.local> | 2010-12-01 03:37:07 -0600 |
commit | 5a7dd1bea32458a4afc038984a903959134b82d3 (patch) | |
tree | 4171e71c34841212585f855a3fbdf8aaf3b9bb4e /source/lang/api/delaymicroseconds.rst | |
parent | 8e42d34c8d3c81c037a3acaca553ea8c5e4f25aa (diff) | |
download | librambutan-5a7dd1bea32458a4afc038984a903959134b82d3.tar.gz librambutan-5a7dd1bea32458a4afc038984a903959134b82d3.zip |
docs, now with style
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-rw-r--r-- | source/lang/api/delaymicroseconds.rst | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/source/lang/api/delaymicroseconds.rst b/source/lang/api/delaymicroseconds.rst new file mode 100644 index 0000000..24a8286 --- /dev/null +++ b/source/lang/api/delaymicroseconds.rst @@ -0,0 +1,65 @@ +.. highlight:: cpp + +.. _lang-delaymicroseconds: + +delayMicroseconds() +=================== + +Pauses the program for the amount of time (in microseconds) +specified as parameter. There are a thousand microseconds in a +millisecond, and a million microseconds in a second. + +Library Documentation +--------------------- + +.. doxygenfunction:: delayMicroseconds + + +Example +------- + +The following example configures pin number 8 to work as an output +pin, and sends a train of pulses with a period of roughly 100 +microseconds:: + + int outPin = 8; + + void setup() { + pinMode(outPin, OUTPUT); // sets the digital pin as output + } + + void loop() { + digitalWrite(outPin, HIGH); // sets the pin on + delayMicroseconds(50); // pauses for 50 microseconds + digitalWrite(outPin, LOW); // sets the pin off + delayMicroseconds(50); // pauses for 50 microseconds + } + + +Caveats and Known Issues +------------------------ + +The longest time ``delayMicroseconds()`` can delay is bounded by its +argument type and the STM32 clock rate to be (2^32 - 1) / 12 +microseconds, or less than 6 minutes. For longer pauses, use of +:ref:`lang-delay` is possible. + +Arduino Compatibility +--------------------- + +While we have made every effort we could to ensure that the timing of +delayMicroseconds is as accurate as possible, we cannot guarantee it +will behave as the Arduino implementation down to the microsecond, +especially for smaller values of ``us``. + +See Also +-------- + +- :ref:`millis <lang-millis>` +- :ref:`micros <lang-micros>` +- :ref:`delay <lang-delay>` + + + + +.. include:: cc-attribution.txt |