cortex-m 0.3.0

Low level access to Cortex-M processors
Documentation 
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/// Macro for sending a formatted string through an ITM channel
#[macro_export]
macro_rules! iprint {
    ($channel:expr, $s:expr) => {
        $crate::itm::write_str($channel, $s);
    };
    ($channel:expr, $($arg:tt)*) => {
        $crate::itm::write_fmt($channel, format_args!($($arg)*));
    };
}

/// Macro for sending a formatted string through an ITM channel, with a newline.
#[macro_export]
macro_rules! iprintln {
    ($channel:expr) => {
        iprint!($channel, "\n");
    };
    ($channel:expr, $fmt:expr) => {
        iprint!($channel, concat!($fmt, "\n"));
    };
    ($channel:expr, $fmt:expr, $($arg:tt)*) => {
        iprint!($channel, concat!($fmt, "\n"), $($arg)*);
    };
}