aboutsummaryrefslogtreecommitdiff
path: root/examples/schedule.rs
diff options
context:
space:
mode:
Diffstat (limited to 'examples/schedule.rs')
-rw-r--r--examples/schedule.rs39
1 files changed, 24 insertions, 15 deletions
diff --git a/examples/schedule.rs b/examples/schedule.rs
index f62f24a7..669c67c9 100644
--- a/examples/schedule.rs
+++ b/examples/schedule.rs
@@ -7,17 +7,14 @@
use panic_semihosting as _;
-// NOTE: does NOT work on QEMU!
#[rtic::app(device = lm3s6965, dispatchers = [SSI0])]
mod app {
- use cortex_m_semihosting::hprintln;
- use dwt_systick_monotonic::DwtSystick;
- use rtic::time::duration::Seconds;
-
- const MONO_HZ: u32 = 8_000_000; // 8 MHz
+ use cortex_m_semihosting::{debug, hprintln};
+ use rtic::time::duration::*;
+ use systick_monotonic::Systick;
#[monotonic(binds = SysTick, default = true)]
- type MyMono = DwtSystick<MONO_HZ>;
+ type MyMono = Systick<100>; // 100 Hz / 10 ms granularity
#[shared]
struct Shared {}
@@ -27,30 +24,42 @@ mod app {
#[init]
fn init(cx: init::Context) -> (Shared, Local, init::Monotonics) {
- let mut dcb = cx.core.DCB;
- let dwt = cx.core.DWT;
let systick = cx.core.SYST;
- let mono = DwtSystick::new(&mut dcb, dwt, systick, 8_000_000);
+ // Initialize the monotonic
+ let mono = Systick::new(systick, 12_000_000);
hprintln!("init").ok();
// Schedule `foo` to run 1 second in the future
- foo::spawn_after(Seconds(1_u32)).ok();
-
- // Schedule `bar` to run 2 seconds in the future
- bar::spawn_after(Seconds(2_u32)).ok();
+ foo::spawn_after(1.seconds()).unwrap();
- (Shared {}, Local {}, init::Monotonics(mono))
+ (
+ Shared {},
+ Local {},
+ init::Monotonics(mono), // Give the monotonic to RTIC
+ )
}
#[task]
fn foo(_: foo::Context) {
hprintln!("foo").ok();
+
+ // Schedule `bar` to run 2 seconds in the future (1 second after foo runs)
+ bar::spawn_after(1.seconds()).unwrap();
}
#[task]
fn bar(_: bar::Context) {
hprintln!("bar").ok();
+
+ // Schedule `baz` to run 1 seconds from now, but with a specific time instant.
+ baz::spawn_at(monotonics::now() + 1.seconds()).unwrap();
+ }
+
+ #[task]
+ fn baz(_: baz::Context) {
+ hprintln!("baz").ok();
+ debug::exit(debug::EXIT_SUCCESS); // Exit QEMU simulator
}
}