mirror of
https://github.com/esp-rs/esp-hal.git
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5af8b6387a
* Create issue_handler.yml * No longer re-export `embedded-hal`, hide exported macros in documentation * Add simple package-level documentation for each HAL package * Clean up/simplify re-exports * Fix the examples that I broke * Ensure top-level modules/types/functions have doc comments * Update CHANGELOG * Re-export the `soc::psram` module where available --------- Co-authored-by: Sergio Gasquez Arcos <sergio.gasquez@gmail.com>
78 lines
2.0 KiB
Rust
78 lines
2.0 KiB
Rust
//! embassy serial
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//!
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//! This is an example of running the embassy executor and asynchronously
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//! writing to a uart.
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#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use embassy_executor::Executor;
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use embassy_time::{Duration, Timer};
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use esp32s2_hal::{
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clock::ClockControl,
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embassy,
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interrupt,
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peripherals::{Interrupt, Peripherals, UART0},
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prelude::*,
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timer::TimerGroup,
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Rtc,
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Uart,
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};
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use esp_backtrace as _;
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use static_cell::StaticCell;
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#[embassy_executor::task]
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async fn run(mut uart: Uart<'static, UART0>) {
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loop {
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embedded_hal_async::serial::Write::write(&mut uart, b"Hello async write!!!\r\n")
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.await
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.unwrap();
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embedded_hal_async::serial::Write::flush(&mut uart)
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.await
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.unwrap();
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Timer::after(Duration::from_millis(1_000)).await;
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}
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}
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static EXECUTOR: StaticCell<Executor> = StaticCell::new();
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#[entry]
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fn main() -> ! {
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esp_println::println!("Init!");
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let peripherals = Peripherals::take();
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let mut system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let mut rtc = Rtc::new(peripherals.RTC_CNTL);
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let timer_group0 = TimerGroup::new(
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peripherals.TIMG0,
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&clocks,
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&mut system.peripheral_clock_control,
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);
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let mut wdt0 = timer_group0.wdt;
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let timer_group1 = TimerGroup::new(
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peripherals.TIMG1,
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&clocks,
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&mut system.peripheral_clock_control,
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);
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let mut wdt1 = timer_group1.wdt;
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// Disable watchdog timers
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rtc.rwdt.disable();
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wdt0.disable();
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wdt1.disable();
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#[cfg(feature = "embassy-time-timg0")]
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embassy::init(&clocks, timer_group0.timer0);
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let uart0 = Uart::new(peripherals.UART0, &mut system.peripheral_clock_control);
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interrupt::enable(Interrupt::UART0, interrupt::Priority::Priority1).unwrap();
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let executor = EXECUTOR.init(Executor::new());
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executor.run(|spawner| {
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spawner.spawn(run(uart0)).ok();
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});
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}
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