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Diffstat (limited to 'examples/init.rs')
-rw-r--r-- | examples/init.rs | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/examples/init.rs b/examples/init.rs new file mode 100644 index 00000000..d6caa609 --- /dev/null +++ b/examples/init.rs @@ -0,0 +1,44 @@ +//! examples/init.rs + +#![deny(unsafe_code)] +#![deny(warnings)] +#![no_main] +#![no_std] + +extern crate panic_semihosting; + +use cortex_m_semihosting::debug; +use rtfm::app; + +// NOTE: This convenience macro will appear in all the other examples and +// will always look the same +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: () = { + #[init] + fn init() { + static mut X: u32 = 0; + + // Cortex-M peripherals + let _core: rtfm::Peripherals = core; + + // Device specific peripherals + let _device: lm3s6965::Peripherals = device; + + // Safe access to local `static mut` variable + let _x: &'static mut u32 = X; + + println!("init"); + + debug::exit(debug::EXIT_SUCCESS); + } +}; |