diff options
Diffstat (limited to 'examples/one-task.rs')
| -rw-r--r-- | examples/one-task.rs | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/examples/one-task.rs b/examples/one-task.rs index 556177d0..e58d9fcd 100644 --- a/examples/one-task.rs +++ b/examples/one-task.rs @@ -1,6 +1,5 @@ //! An application with one task #![deny(unsafe_code)] -#![feature(const_fn)] #![feature(proc_macro)] #![no_std] @@ -34,17 +33,6 @@ app! { // Path to the task handler path: sys_tick, - // This is the priority of the task. - // - // 1 is the lowest priority a task can have, and the maximum - // priority is determined by the number of priority bits the device - // has. `stm32f103xx` has 4 priority bits so 16 is the maximum valid - // value. - // - // You can omit this field. If you do the priority is assumed to be - // 1. - priority: 1, - // These are the resources this task has access to. // // A resource can be a peripheral like `GPIOC` or a static variable @@ -54,7 +42,10 @@ app! { } } -fn init(p: init::Peripherals, _r: init::Resources) { +fn init(p: init::Peripherals, r: init::Resources) { + // `init` can modify all the `resources` declared in `app!` + r.ON; + // power on GPIOC p.RCC.apb2enr.modify(|_, w| w.iopcen().enabled()); @@ -81,7 +72,7 @@ fn idle() -> ! { // // `_t` is the preemption threshold token. We won't use it in this program. // -// `r` is the set of resources this task has access to. `TIMER0_A1::Resources` +// `r` is the set of resources this task has access to. `SYS_TICK::Resources` // has one field per resource declared in `app!`. fn sys_tick(_t: &mut Threshold, r: SYS_TICK::Resources) { // toggle state |