rtic/examples/preempt.rs

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//! examples/preempt.rs
#![no_main]
#![no_std]
use cortex_m_semihosting::{debug, hprintln};
use lm3s6965::Interrupt;
use panic_semihosting as _;
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use rtic::app;
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#[app(device = lm3s6965)]
const APP: () = {
#[init]
fn init(_: init::Context) {
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rtic::pend(Interrupt::GPIOA);
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}
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#[task(binds = GPIOA, priority = 1)]
fn gpioa(_: gpioa::Context) {
hprintln!("GPIOA - start").unwrap();
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rtic::pend(Interrupt::GPIOC);
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hprintln!("GPIOA - end").unwrap();
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debug::exit(debug::EXIT_SUCCESS);
}
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#[task(binds = GPIOB, priority = 2)]
fn gpiob(_: gpiob::Context) {
hprintln!(" GPIOB").unwrap();
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}
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#[task(binds = GPIOC, priority = 2)]
fn gpioc(_: gpioc::Context) {
hprintln!(" GPIOC - start").unwrap();
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rtic::pend(Interrupt::GPIOB);
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hprintln!(" GPIOC - end").unwrap();
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}
};