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Diffstat (limited to 'examples/ramfunc.rs')
-rw-r--r-- | examples/ramfunc.rs | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/examples/ramfunc.rs b/examples/ramfunc.rs new file mode 100644 index 00000000..b7fe2523 --- /dev/null +++ b/examples/ramfunc.rs @@ -0,0 +1,53 @@ +//! examples/ramfunc.rs + +#![deny(unsafe_code)] +#![deny(warnings)] +#![no_main] +#![no_std] + +extern crate panic_semihosting; + +use cortex_m_semihosting::debug; +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: () = { + #[init(spawn = [bar])] + fn init() { + spawn.bar().unwrap(); + } + + #[inline(never)] + #[task] + fn foo() { + println!("foo"); + + debug::exit(debug::EXIT_SUCCESS); + } + + // run this task from RAM + #[inline(never)] + #[link_section = ".data.bar"] + #[task(priority = 2, spawn = [foo])] + fn bar() { + spawn.foo().unwrap(); + } + + extern "C" { + fn UART0(); + + // run the task dispatcher from RAM + #[link_section = ".data.UART1"] + fn UART1(); + } +}; |