paul/stm32f4disc-demo
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Add a flip() helper method for LedDirection; use it

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This commit is contained in:
Paul van Tilburg 2019-03-06 23:03:06 +01:00
parent c7f6c19e75
commit c2f159b63f
1 changed files with 11 additions and 4 deletions
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15
src/main.rs
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@ -20,6 +20,15 @@ pub enum LedDirection {
CounterClockwise,
}
impl LedDirection {
fn flip(&self) -> LedDirection {
match self {
LedDirection::Clockwise => LedDirection::CounterClockwise,
LedDirection::CounterClockwise => LedDirection::Clockwise,
}
}
}
#[app(device = hal::stm32)]
const APP: () = {
static mut button: UserButton = ();
@ -68,10 +77,8 @@ const APP: () = {
#[interrupt(binds = EXTI0, resources = [button, exti, led_cycle_direction])]
fn button_pressed() {
*resources.led_cycle_direction = match *resources.led_cycle_direction {
LedDirection::Clockwise => LedDirection::CounterClockwise,
LedDirection::CounterClockwise => LedDirection::Clockwise,
};
*resources.led_cycle_direction = resources.led_cycle_direction.flip();
resources.button.clear_interrupt_pending_bit(resources.exti);
}