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//! examples/static.rs
#![deny(unsafe_code)]
#![deny(warnings)]
#![no_main]
#![no_std]
use panic_semihosting as _;
#[rtic::app(device = lm3s6965)]
mod app {
use cortex_m_semihosting::{debug, hprintln};
use heapless::{
consts::*,
i,
spsc::{Consumer, Producer, Queue},
};
use lm3s6965::Interrupt;
// Late resources
#[resources]
struct Resources {
p: Producer<'static, u32, U4>,
c: Consumer<'static, u32, U4>,
}
#[init]
fn init(_: init::Context) -> init::LateResources {
static mut Q: Queue<u32, U4> = Queue(i::Queue::new());
let (p, c) = Q.split();
// Initialization of late resources
init::LateResources { p, c }
}
#[idle(resources = [c])]
fn idle(mut c: idle::Context) -> ! {
loop {
if let Some(byte) = c.resources.c.lock(|c| c.dequeue()) {
hprintln!("received message: {}", byte).unwrap();
debug::exit(debug::EXIT_SUCCESS);
} else {
rtic::pend(Interrupt::UART0);
}
}
}
#[task(binds = UART0, resources = [p])]
fn uart0(mut c: uart0::Context) {
static mut KALLE: u32 = 0;
*KALLE += 1;
c.resources.p.lock(|p| p.enqueue(42).unwrap());
}
}
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