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add assignment to beginner/time section

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Jorge Aparicio 2020-07-15 17:59:30 +02:00
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embedded-workshop-book/src/time.md
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@ -8,6 +8,6 @@ This program will blink (turn on and off) one of the LEDs on the board. The time
[`Duration`]: https://doc.rust-lang.org/core/time/struct.Duration.html
The other time related API exposed by the `dk` HAL is the `dk::uptime` function. This function returns the time that has elapsed since the call to the `dk::init` function. This function is used in the program to log the time of each LED toggle operation.
✅ Try changing the `Duration` value passed to `Timer.wait`. Try values larger than one second and smaller than one second. What values of `Duration` make the blinking imperceptible?
[❗️assignment to chnge something]
The other time related API exposed by the `dk` HAL is the `dk::uptime` function. This function returns the time that has elapsed since the call to the `dk::init` function. This function is used in the program to log the time of each LED toggle operation.