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//! examples/resource.rs
#![deny(unsafe_code)]
#![deny(warnings)]
#![no_main]
#![no_std]
extern crate panic_semihosting;
use cortex_m_semihosting::debug;
use lm3s6965::Interrupt;
use rtfm::app;
macro_rules! println {
($($tt:tt)*) => {
if let Ok(mut stdout) = cortex_m_semihosting::hio::hstdout() {
use core::fmt::Write;
writeln!(stdout, $($tt)*).ok();
}
};
}
#[app(device = lm3s6965)]
const APP: () = {
// A resource
static mut SHARED: u32 = 0;
#[init]
fn init() {
rtfm::pend(Interrupt::UART0);
rtfm::pend(Interrupt::UART1);
}
#[idle]
fn idle() -> ! {
debug::exit(debug::EXIT_SUCCESS);
// error: `SHARED` can't be accessed from this context
// SHARED += 1;
loop {}
}
// `SHARED` can be access from this context
#[interrupt(resources = [SHARED])]
fn UART0() {
*resources.SHARED += 1;
println!("UART0: SHARED = {}", resources.SHARED);
}
// `SHARED` can be access from this context
#[interrupt(resources = [SHARED])]
fn UART1() {
*resources.SHARED += 1;
println!("UART1: SHARED = {}", resources.SHARED);
}
};
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