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#![no_main]
#![no_std]
#![feature(type_alias_impl_trait)]
use panic_semihosting as _;
#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0], peripherals = true)]
mod app {
use cortex_m_semihosting::{debug, hprintln};
use systick_monotonic::*;
#[shared]
struct Shared {}
#[local]
struct Local {}
#[monotonic(binds = SysTick, default = true)]
type MyMono = Systick<100>;
#[init]
fn init(cx: init::Context) -> (Shared, Local, init::Monotonics) {
hprintln!("init").unwrap();
foo::spawn().ok();
(
Shared {},
Local {},
init::Monotonics(Systick::new(cx.core.SYST, 12_000_000)),
)
}
#[idle]
fn idle(_: idle::Context) -> ! {
loop {
cortex_m::asm::wfi(); // put the MCU in sleep mode until interrupt occurs
}
}
// Infinite loops are not allowed in RTIC, however in async tasks they are - if there is an
// await inside the loop.
#[task]
async fn foo(_cx: foo::Context) {
let mut i = 0;
loop {
if i == 5 {
debug::exit(debug::EXIT_SUCCESS);
}
hprintln!("hello from async {}", i).ok();
monotonics::delay(100.millis()).await; // This makes it okey!
i += 1;
}
}
}
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