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62 lines
1.2 KiB
Rust
62 lines
1.2 KiB
Rust
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//! examples/baseline.rs
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#![deny(unsafe_code)]
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#![deny(warnings)]
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#![no_main]
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#![no_std]
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extern crate panic_semihosting;
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use cortex_m_semihosting::debug;
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use lm3s6965::Interrupt;
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use rtfm::app;
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macro_rules! println {
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($($tt:tt)*) => {
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if let Ok(mut stdout) = cortex_m_semihosting::hio::hstdout() {
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use core::fmt::Write;
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writeln!(stdout, $($tt)*).ok();
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}
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};
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}
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// NOTE: does NOT properly work on QEMU
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#[app(device = lm3s6965)]
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const APP: () = {
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#[init(spawn = [foo])]
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fn init() {
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println!("init(baseline = {:?})", start);
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// `foo` inherits the baseline of `init`: `Instant(0)`
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spawn.foo().unwrap();
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}
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#[task(schedule = [foo])]
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fn foo() {
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static mut ONCE: bool = true;
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println!("foo(baseline = {:?})", scheduled);
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if *ONCE {
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*ONCE = false;
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rtfm::pend(Interrupt::UART0);
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} else {
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debug::exit(debug::EXIT_SUCCESS);
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}
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}
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#[interrupt(spawn = [foo])]
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fn UART0() {
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println!("UART0(baseline = {:?})", start);
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// `foo` inherits the baseline of `UART0`: its `start` time
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spawn.foo().unwrap();
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}
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extern "C" {
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fn UART1();
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}
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};
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