2021-03-18 01:46:40 +00:00
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use core::cell::UnsafeCell;
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2021-01-21 17:08:38 +00:00
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use core::future::Future;
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use core::mem;
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use core::pin::Pin;
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2021-03-18 01:46:40 +00:00
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use cortex_m;
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2021-01-21 17:08:38 +00:00
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2021-02-26 00:55:27 +00:00
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use embassy::interrupt::Interrupt;
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2021-03-01 23:32:23 +00:00
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use embassy::traits::gpio::{WaitForFallingEdge, WaitForRisingEdge};
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2021-01-21 17:08:38 +00:00
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use embassy::util::InterruptFuture;
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use crate::hal::gpio;
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2021-03-18 01:46:40 +00:00
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use crate::hal::gpio::Edge;
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2021-01-21 17:08:38 +00:00
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use crate::hal::syscfg::SysCfg;
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use crate::pac::EXTI;
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2021-03-14 22:28:29 +00:00
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use embedded_hal::digital::v2 as digital;
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2021-01-21 17:08:38 +00:00
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use crate::interrupt;
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2021-03-18 01:46:40 +00:00
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pub struct ExtiPin<T: gpio::ExtiPin + WithInterrupt> {
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pin: T,
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interrupt: T::Interrupt,
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2021-01-21 17:08:38 +00:00
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}
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2021-03-18 01:46:40 +00:00
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impl<T: gpio::ExtiPin + WithInterrupt> ExtiPin<T> {
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fn new(mut pin: T, interrupt: T::Interrupt) -> Self {
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let mut syscfg: SysCfg = unsafe { mem::transmute(()) };
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2021-01-21 17:08:38 +00:00
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2021-03-18 01:46:40 +00:00
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cortex_m::interrupt::free(|_| {
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pin.make_interrupt_source(&mut syscfg);
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});
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2021-01-21 17:08:38 +00:00
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2021-03-18 01:46:40 +00:00
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Self { pin, interrupt }
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2021-01-21 17:08:38 +00:00
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}
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}
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2021-03-18 01:46:40 +00:00
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impl<T: gpio::ExtiPin + WithInterrupt + digital::OutputPin> digital::OutputPin for ExtiPin<T> {
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2021-03-14 22:28:29 +00:00
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type Error = T::Error;
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fn set_low(&mut self) -> Result<(), Self::Error> {
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self.pin.set_low()
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}
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fn set_high(&mut self) -> Result<(), Self::Error> {
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self.pin.set_high()
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}
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}
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2021-03-18 01:46:40 +00:00
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impl<T: gpio::ExtiPin + WithInterrupt + digital::StatefulOutputPin> digital::StatefulOutputPin
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2021-03-14 22:28:29 +00:00
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for ExtiPin<T>
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{
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fn is_set_low(&self) -> Result<bool, Self::Error> {
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self.pin.is_set_low()
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}
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fn is_set_high(&self) -> Result<bool, Self::Error> {
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self.pin.is_set_high()
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}
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}
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2021-03-18 01:46:40 +00:00
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impl<T: gpio::ExtiPin + WithInterrupt + digital::ToggleableOutputPin> digital::ToggleableOutputPin
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2021-03-14 22:28:29 +00:00
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for ExtiPin<T>
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{
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type Error = T::Error;
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fn toggle(&mut self) -> Result<(), Self::Error> {
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self.pin.toggle()
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}
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}
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2021-03-18 01:46:40 +00:00
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impl<T: gpio::ExtiPin + WithInterrupt + digital::InputPin> digital::InputPin for ExtiPin<T> {
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2021-03-14 22:28:29 +00:00
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type Error = T::Error;
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fn is_high(&self) -> Result<bool, Self::Error> {
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self.pin.is_high()
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}
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fn is_low(&self) -> Result<bool, Self::Error> {
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self.pin.is_low()
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}
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}
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2021-01-21 17:08:38 +00:00
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/*
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Irq Handler Description
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EXTI0_IRQn EXTI0_IRQHandler Handler for pins connected to line 0
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EXTI1_IRQn EXTI1_IRQHandler Handler for pins connected to line 1
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EXTI2_IRQn EXTI2_IRQHandler Handler for pins connected to line 2
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EXTI3_IRQn EXTI3_IRQHandler Handler for pins connected to line 3
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EXTI4_IRQn EXTI4_IRQHandler Handler for pins connected to line 4
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EXTI9_5_IRQn EXTI9_5_IRQHandler Handler for pins connected to line 5 to 9
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EXTI15_10_IRQn EXTI15_10_IRQHandler Handler for pins connected to line 10 to 15
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*/
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2021-03-18 01:46:40 +00:00
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impl<T: gpio::ExtiPin + WithInterrupt + 'static> WaitForRisingEdge for ExtiPin<T> {
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2021-01-21 17:08:38 +00:00
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type Future<'a> = impl Future<Output = ()> + 'a;
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fn wait_for_rising_edge<'a>(self: Pin<&'a mut Self>) -> Self::Future<'a> {
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let s = unsafe { self.get_unchecked_mut() };
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2021-02-24 15:36:49 +00:00
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s.pin.clear_interrupt_pending_bit();
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2021-01-21 17:08:38 +00:00
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async move {
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let fut = InterruptFuture::new(&mut s.interrupt);
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2021-03-18 01:46:40 +00:00
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cortex_m::interrupt::free(|_| {
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let mut exti: EXTI = unsafe { mem::transmute(()) };
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2021-01-21 17:08:38 +00:00
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2021-03-18 01:46:40 +00:00
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s.pin.trigger_on_edge(&mut exti, Edge::RISING);
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s.pin.enable_interrupt(&mut exti);
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});
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2021-01-21 17:08:38 +00:00
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fut.await;
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s.pin.clear_interrupt_pending_bit();
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}
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}
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}
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2021-03-18 01:46:40 +00:00
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impl<T: gpio::ExtiPin + WithInterrupt + 'static> WaitForFallingEdge for ExtiPin<T> {
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2021-01-21 17:08:38 +00:00
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type Future<'a> = impl Future<Output = ()> + 'a;
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fn wait_for_falling_edge<'a>(self: Pin<&'a mut Self>) -> Self::Future<'a> {
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let s = unsafe { self.get_unchecked_mut() };
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2021-02-24 15:36:49 +00:00
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s.pin.clear_interrupt_pending_bit();
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2021-01-21 17:08:38 +00:00
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async move {
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let fut = InterruptFuture::new(&mut s.interrupt);
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2021-03-18 01:46:40 +00:00
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cortex_m::interrupt::free(|_| {
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let mut exti: EXTI = unsafe { mem::transmute(()) };
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2021-01-21 17:08:38 +00:00
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2021-03-18 01:46:40 +00:00
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s.pin.trigger_on_edge(&mut exti, Edge::FALLING);
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s.pin.enable_interrupt(&mut exti);
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});
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2021-01-21 17:08:38 +00:00
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fut.await;
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s.pin.clear_interrupt_pending_bit();
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}
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}
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}
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mod private {
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pub trait Sealed {}
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}
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pub trait WithInterrupt: private::Sealed {
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2021-03-06 04:59:54 +00:00
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type Interrupt: interrupt::Interrupt;
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2021-01-21 17:08:38 +00:00
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}
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macro_rules! exti {
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2021-03-06 04:59:54 +00:00
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($set:ident, [
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$($INT:ident => $pin:ident,)+
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]) => {
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2021-01-21 17:08:38 +00:00
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$(
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impl<T> private::Sealed for gpio::$set::$pin<T> {}
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impl<T> WithInterrupt for gpio::$set::$pin<T> {
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2021-03-06 04:59:54 +00:00
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type Interrupt = interrupt::$INT;
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2021-01-21 17:08:38 +00:00
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}
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)+
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2021-03-06 04:59:54 +00:00
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};
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2021-01-21 17:08:38 +00:00
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}
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#[cfg(any(
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feature = "stm32f401",
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feature = "stm32f405",
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feature = "stm32f407",
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feature = "stm32f410",
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feature = "stm32f411",
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feature = "stm32f412",
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feature = "stm32f413",
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feature = "stm32f415",
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feature = "stm32f417",
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feature = "stm32f423",
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feature = "stm32f427",
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feature = "stm32f429",
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feature = "stm32f437",
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feature = "stm32f439",
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feature = "stm32f446",
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feature = "stm32f469",
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feature = "stm32f479"
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))]
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2021-03-06 04:59:54 +00:00
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exti!(gpioa, [
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EXTI0 => PA0,
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EXTI1 => PA1,
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EXTI2 => PA2,
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EXTI3 => PA3,
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EXTI4 => PA4,
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EXTI9_5 => PA5,
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EXTI9_5 => PA6,
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EXTI9_5 => PA7,
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EXTI9_5 => PA8,
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EXTI9_5 => PA9,
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EXTI15_10 => PA10,
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EXTI15_10 => PA11,
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EXTI15_10 => PA12,
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EXTI15_10 => PA13,
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EXTI15_10 => PA14,
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EXTI15_10 => PA15,
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]);
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2021-01-21 17:08:38 +00:00
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#[cfg(any(
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feature = "stm32f401",
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feature = "stm32f405",
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feature = "stm32f407",
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feature = "stm32f410",
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feature = "stm32f411",
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feature = "stm32f412",
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feature = "stm32f413",
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feature = "stm32f415",
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feature = "stm32f417",
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feature = "stm32f423",
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feature = "stm32f427",
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feature = "stm32f429",
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feature = "stm32f437",
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feature = "stm32f439",
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feature = "stm32f446",
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feature = "stm32f469",
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feature = "stm32f479"
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))]
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2021-03-06 04:59:54 +00:00
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exti!(gpiob, [
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EXTI0 => PB0,
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EXTI1 => PB1,
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EXTI2 => PB2,
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EXTI3 => PB3,
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EXTI4 => PB4,
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EXTI9_5 => PB5,
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EXTI9_5 => PB6,
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EXTI9_5 => PB7,
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EXTI9_5 => PB8,
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EXTI9_5 => PB9,
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EXTI15_10 => PB10,
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EXTI15_10 => PB11,
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EXTI15_10 => PB12,
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EXTI15_10 => PB13,
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EXTI15_10 => PB14,
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EXTI15_10 => PB15,
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]);
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2021-01-21 17:08:38 +00:00
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#[cfg(any(
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feature = "stm32f401",
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feature = "stm32f405",
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feature = "stm32f407",
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feature = "stm32f410",
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feature = "stm32f411",
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feature = "stm32f412",
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feature = "stm32f413",
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feature = "stm32f415",
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feature = "stm32f417",
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feature = "stm32f423",
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feature = "stm32f427",
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feature = "stm32f429",
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feature = "stm32f437",
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feature = "stm32f439",
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feature = "stm32f446",
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feature = "stm32f469",
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feature = "stm32f479"
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))]
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2021-03-06 04:59:54 +00:00
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exti!(gpioc, [
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EXTI0 => PC0,
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EXTI1 => PC1,
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EXTI2 => PC2,
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EXTI3 => PC3,
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EXTI4 => PC4,
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EXTI9_5 => PC5,
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EXTI9_5 => PC6,
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EXTI9_5 => PC7,
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EXTI9_5 => PC8,
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EXTI9_5 => PC9,
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EXTI15_10 => PC10,
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EXTI15_10 => PC11,
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EXTI15_10 => PC12,
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EXTI15_10 => PC13,
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EXTI15_10 => PC14,
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EXTI15_10 => PC15,
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]);
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2021-01-21 17:08:38 +00:00
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#[cfg(any(
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feature = "stm32f401",
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feature = "stm32f405",
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feature = "stm32f407",
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feature = "stm32f411",
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feature = "stm32f412",
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feature = "stm32f413",
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feature = "stm32f415",
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feature = "stm32f417",
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feature = "stm32f423",
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feature = "stm32f427",
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feature = "stm32f429",
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feature = "stm32f437",
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feature = "stm32f439",
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feature = "stm32f446",
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feature = "stm32f469",
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feature = "stm32f479"
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))]
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2021-03-06 04:59:54 +00:00
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exti!(gpiod, [
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EXTI0 => PD0,
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EXTI1 => PD1,
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EXTI2 => PD2,
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EXTI3 => PD3,
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EXTI4 => PD4,
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EXTI9_5 => PD5,
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EXTI9_5 => PD6,
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EXTI9_5 => PD7,
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EXTI9_5 => PD8,
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EXTI9_5 => PD9,
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EXTI15_10 => PD10,
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EXTI15_10 => PD11,
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EXTI15_10 => PD12,
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EXTI15_10 => PD13,
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EXTI15_10 => PD14,
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EXTI15_10 => PD15,
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]);
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2021-01-21 17:08:38 +00:00
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#[cfg(any(
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feature = "stm32f401",
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feature = "stm32f405",
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feature = "stm32f407",
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feature = "stm32f411",
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feature = "stm32f412",
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feature = "stm32f413",
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feature = "stm32f415",
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feature = "stm32f417",
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feature = "stm32f423",
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feature = "stm32f427",
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feature = "stm32f429",
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feature = "stm32f437",
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feature = "stm32f439",
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feature = "stm32f446",
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feature = "stm32f469",
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feature = "stm32f479"
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))]
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2021-03-06 04:59:54 +00:00
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exti!(gpioe, [
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EXTI0 => PE0,
|
|
|
|
EXTI1 => PE1,
|
|
|
|
EXTI2 => PE2,
|
|
|
|
EXTI3 => PE3,
|
|
|
|
EXTI4 => PE4,
|
|
|
|
EXTI9_5 => PE5,
|
|
|
|
EXTI9_5 => PE6,
|
|
|
|
EXTI9_5 => PE7,
|
|
|
|
EXTI9_5 => PE8,
|
|
|
|
EXTI9_5 => PE9,
|
|
|
|
EXTI15_10 => PE10,
|
|
|
|
EXTI15_10 => PE11,
|
|
|
|
EXTI15_10 => PE12,
|
|
|
|
EXTI15_10 => PE13,
|
|
|
|
EXTI15_10 => PE14,
|
|
|
|
EXTI15_10 => PE15,
|
|
|
|
]);
|
2021-01-21 17:08:38 +00:00
|
|
|
|
|
|
|
#[cfg(any(
|
|
|
|
feature = "stm32f405",
|
|
|
|
feature = "stm32f407",
|
|
|
|
feature = "stm32f412",
|
|
|
|
feature = "stm32f413",
|
|
|
|
feature = "stm32f415",
|
|
|
|
feature = "stm32f417",
|
|
|
|
feature = "stm32f423",
|
|
|
|
feature = "stm32f427",
|
|
|
|
feature = "stm32f429",
|
|
|
|
feature = "stm32f437",
|
|
|
|
feature = "stm32f439",
|
|
|
|
feature = "stm32f446",
|
|
|
|
feature = "stm32f469",
|
|
|
|
feature = "stm32f479"
|
|
|
|
))]
|
2021-03-06 04:59:54 +00:00
|
|
|
exti!(gpiof, [
|
|
|
|
EXTI0 => PF0,
|
|
|
|
EXTI1 => PF1,
|
|
|
|
EXTI2 => PF2,
|
|
|
|
EXTI3 => PF3,
|
|
|
|
EXTI4 => PF4,
|
|
|
|
EXTI9_5 => PF5,
|
|
|
|
EXTI9_5 => PF6,
|
|
|
|
EXTI9_5 => PF7,
|
|
|
|
EXTI9_5 => PF8,
|
|
|
|
EXTI9_5 => PF9,
|
|
|
|
EXTI15_10 => PF10,
|
|
|
|
EXTI15_10 => PF11,
|
|
|
|
EXTI15_10 => PF12,
|
|
|
|
EXTI15_10 => PF13,
|
|
|
|
EXTI15_10 => PF14,
|
|
|
|
EXTI15_10 => PF15,
|
|
|
|
]);
|
2021-01-21 17:08:38 +00:00
|
|
|
|
|
|
|
#[cfg(any(
|
|
|
|
feature = "stm32f405",
|
|
|
|
feature = "stm32f407",
|
|
|
|
feature = "stm32f412",
|
|
|
|
feature = "stm32f413",
|
|
|
|
feature = "stm32f415",
|
|
|
|
feature = "stm32f417",
|
|
|
|
feature = "stm32f423",
|
|
|
|
feature = "stm32f427",
|
|
|
|
feature = "stm32f429",
|
|
|
|
feature = "stm32f437",
|
|
|
|
feature = "stm32f439",
|
|
|
|
feature = "stm32f446",
|
|
|
|
feature = "stm32f469",
|
|
|
|
feature = "stm32f479"
|
|
|
|
))]
|
2021-03-06 04:59:54 +00:00
|
|
|
exti!(gpiog, [
|
|
|
|
EXTI0 => PG0,
|
|
|
|
EXTI1 => PG1,
|
|
|
|
EXTI2 => PG2,
|
|
|
|
EXTI3 => PG3,
|
|
|
|
EXTI4 => PG4,
|
|
|
|
EXTI9_5 => PG5,
|
|
|
|
EXTI9_5 => PG6,
|
|
|
|
EXTI9_5 => PG7,
|
|
|
|
EXTI9_5 => PG8,
|
|
|
|
EXTI9_5 => PG9,
|
|
|
|
EXTI15_10 => PG10,
|
|
|
|
EXTI15_10 => PG11,
|
|
|
|
EXTI15_10 => PG12,
|
|
|
|
EXTI15_10 => PG13,
|
|
|
|
EXTI15_10 => PG14,
|
|
|
|
EXTI15_10 => PG15,
|
|
|
|
]);
|
2021-01-21 17:08:38 +00:00
|
|
|
|
|
|
|
#[cfg(any(
|
|
|
|
feature = "stm32f405",
|
|
|
|
feature = "stm32f407",
|
|
|
|
feature = "stm32f410",
|
|
|
|
feature = "stm32f411",
|
|
|
|
feature = "stm32f412",
|
|
|
|
feature = "stm32f413",
|
|
|
|
feature = "stm32f415",
|
|
|
|
feature = "stm32f417",
|
|
|
|
feature = "stm32f423",
|
|
|
|
feature = "stm32f427",
|
|
|
|
feature = "stm32f429",
|
|
|
|
feature = "stm32f437",
|
|
|
|
feature = "stm32f439",
|
|
|
|
feature = "stm32f446",
|
|
|
|
feature = "stm32f469",
|
|
|
|
feature = "stm32f479"
|
|
|
|
))]
|
2021-03-06 04:59:54 +00:00
|
|
|
exti!(gpioh, [
|
|
|
|
EXTI0 => PH0,
|
|
|
|
EXTI1 => PH1,
|
|
|
|
EXTI2 => PH2,
|
|
|
|
EXTI3 => PH3,
|
|
|
|
EXTI4 => PH4,
|
|
|
|
EXTI9_5 => PH5,
|
|
|
|
EXTI9_5 => PH6,
|
|
|
|
EXTI9_5 => PH7,
|
|
|
|
EXTI9_5 => PH8,
|
|
|
|
EXTI9_5 => PH9,
|
|
|
|
EXTI15_10 => PH10,
|
|
|
|
EXTI15_10 => PH11,
|
|
|
|
EXTI15_10 => PH12,
|
|
|
|
EXTI15_10 => PH13,
|
|
|
|
EXTI15_10 => PH14,
|
|
|
|
EXTI15_10 => PH15,
|
|
|
|
]);
|
2021-01-21 17:08:38 +00:00
|
|
|
|
|
|
|
#[cfg(any(feature = "stm32f401"))]
|
2021-03-06 04:59:54 +00:00
|
|
|
exti!(gpioh, [
|
|
|
|
EXTI0 => PH0,
|
|
|
|
EXTI1 => PH1,
|
|
|
|
]);
|
2021-01-21 17:08:38 +00:00
|
|
|
|
|
|
|
#[cfg(any(
|
|
|
|
feature = "stm32f405",
|
|
|
|
feature = "stm32f407",
|
|
|
|
feature = "stm32f415",
|
|
|
|
feature = "stm32f417",
|
|
|
|
feature = "stm32f427",
|
|
|
|
feature = "stm32f429",
|
|
|
|
feature = "stm32f437",
|
|
|
|
feature = "stm32f439",
|
|
|
|
feature = "stm32f469",
|
|
|
|
feature = "stm32f479"
|
|
|
|
))]
|
2021-03-06 04:59:54 +00:00
|
|
|
exti!(gpioi, [
|
|
|
|
EXTI0 => PI0,
|
|
|
|
EXTI1 => PI1,
|
|
|
|
EXTI2 => PI2,
|
|
|
|
EXTI3 => PI3,
|
|
|
|
EXTI4 => PI4,
|
|
|
|
EXTI9_5 => PI5,
|
|
|
|
EXTI9_5 => PI6,
|
|
|
|
EXTI9_5 => PI7,
|
|
|
|
EXTI9_5 => PI8,
|
|
|
|
EXTI9_5 => PI9,
|
|
|
|
EXTI15_10 => PI10,
|
|
|
|
EXTI15_10 => PI11,
|
|
|
|
EXTI15_10 => PI12,
|
|
|
|
EXTI15_10 => PI13,
|
|
|
|
EXTI15_10 => PI14,
|
|
|
|
EXTI15_10 => PI15,
|
|
|
|
]);
|
2021-01-21 17:08:38 +00:00
|
|
|
|
|
|
|
#[cfg(any(
|
|
|
|
feature = "stm32f427",
|
|
|
|
feature = "stm32f429",
|
|
|
|
feature = "stm32f437",
|
|
|
|
feature = "stm32f439",
|
|
|
|
feature = "stm32f469",
|
|
|
|
feature = "stm32f479"
|
|
|
|
))]
|
2021-03-06 04:59:54 +00:00
|
|
|
exti!(gpioj, [
|
|
|
|
EXTI0 => PJ0,
|
|
|
|
EXTI1 => PJ1,
|
|
|
|
EXTI2 => PJ2,
|
|
|
|
EXTI3 => PJ3,
|
|
|
|
EXTI4 => PJ4,
|
|
|
|
EXTI9_5 => PJ5,
|
|
|
|
EXTI9_5 => PJ6,
|
|
|
|
EXTI9_5 => PJ7,
|
|
|
|
EXTI9_5 => PJ8,
|
|
|
|
EXTI9_5 => PJ9,
|
|
|
|
EXTI15_10 => PJ10,
|
|
|
|
EXTI15_10 => PJ11,
|
|
|
|
EXTI15_10 => PJ12,
|
|
|
|
EXTI15_10 => PJ13,
|
|
|
|
EXTI15_10 => PJ14,
|
|
|
|
EXTI15_10 => PJ15,
|
|
|
|
]);
|
2021-01-21 17:08:38 +00:00
|
|
|
|
|
|
|
#[cfg(any(
|
|
|
|
feature = "stm32f427",
|
|
|
|
feature = "stm32f429",
|
|
|
|
feature = "stm32f437",
|
|
|
|
feature = "stm32f439",
|
|
|
|
feature = "stm32f469",
|
|
|
|
feature = "stm32f479"
|
|
|
|
))]
|
2021-03-14 20:18:09 +00:00
|
|
|
exti!(gpiok, [
|
2021-03-06 04:59:54 +00:00
|
|
|
EXTI0 => PK0,
|
|
|
|
EXTI1 => PK1,
|
|
|
|
EXTI2 => PK2,
|
|
|
|
EXTI3 => PK3,
|
|
|
|
EXTI4 => PK4,
|
|
|
|
EXTI9_5 => PK5,
|
|
|
|
EXTI9_5 => PK6,
|
|
|
|
EXTI9_5 => PK7,
|
|
|
|
]);
|