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USART codegen

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This commit is contained in:
Dario Nieuwenhuis
2021-04-25 22:35:51 +02:00
parent 6ba915a308
commit 936efd164d
154 changed files with 6225 additions and 83 deletions
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66
embassy-stm32-examples/src/bin/usart.rs
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@ -10,9 +10,8 @@ mod example_common;
use embassy::executor::Executor;
use embassy::time::Clock;
use embassy::util::Forever;
use embassy_stm32::exti::{self, ExtiInput};
use embassy_stm32::gpio::{Input, Pull};
use embassy_traits::gpio::{WaitForFallingEdge, WaitForRisingEdge};
use embassy_stm32::gpio::NoPin;
use embassy_stm32::usart::{Config, Uart};
use example_common::*;
use cortex_m_rt::entry;
@ -22,17 +21,11 @@ use stm32f4::stm32f429 as pac;
#[embassy::task]
async fn main_task() {
let p = embassy_stm32::Peripherals::take().unwrap();
let button = Input::new(p.PC13, Pull::Down);
let mut button = ExtiInput::new(button, p.EXTI13);
info!("Press the USER button...");
let config = Config::default();
let usart = Uart::new(p.USART3, p.PD9, p.PD8, NoPin, NoPin, config);
loop {
button.wait_for_rising_edge().await;
info!("Pressed!");
button.wait_for_falling_edge().await;
info!("Released!");
}
// TODO make it actually do something
}
struct ZeroClock;
@ -68,63 +61,16 @@ fn main() -> ! {
w
});
pp.RCC.apb2enr.modify(|_, w| {
w.usart1en().enabled();
w.usart3en().enabled();
w.syscfgen().enabled();
w
});
unsafe { embassy::time::set_clock(&ZeroClock) };
unsafe {
NVIC::unmask(interrupt::EXTI0);
NVIC::unmask(interrupt::EXTI1);
NVIC::unmask(interrupt::EXTI2);
NVIC::unmask(interrupt::EXTI3);
NVIC::unmask(interrupt::EXTI4);
NVIC::unmask(interrupt::EXTI9_5);
NVIC::unmask(interrupt::EXTI15_10);
}
let executor = EXECUTOR.put(Executor::new());
executor.run(|spawner| {
unwrap!(spawner.spawn(main_task()));
})
}
// TODO for now irq handling is done by user code using the old pac, until we figure out how interrupts work in the metapac
#[interrupt]
unsafe fn EXTI0() {
exti::on_irq()
}
#[interrupt]
unsafe fn EXTI1() {
exti::on_irq()
}
#[interrupt]
unsafe fn EXTI2() {
exti::on_irq()
}
#[interrupt]
unsafe fn EXTI3() {
exti::on_irq()
}
#[interrupt]
unsafe fn EXTI4() {
exti::on_irq()
}
#[interrupt]
unsafe fn EXTI9_5() {
exti::on_irq()
}
#[interrupt]
unsafe fn EXTI15_10() {
exti::on_irq()
}