k210_hal/
stdout.rs

1//! Stdout
2pub use core::fmt::Write;
3use nb::block;
4
5/// Stdout implements the core::fmt::Write trait for hal::serial::Write
6/// implementations.
7pub struct Stdout<'p, T>(pub &'p mut T);
8
9impl<'p, T> Write for Stdout<'p, T>
10    where
11    T: embedded_hal::serial::Write<u8>,
12{
13    fn write_str(&mut self, s: &str) -> core::fmt::Result {
14        for byte in s.as_bytes() {
15            if *byte == b'\n' {
16                let res = block!(self.0.write(b'\r'));
17
18                if res.is_err() {
19                    return Err(core::fmt::Error);
20                }
21            }
22
23            let res = block!(self.0.write(*byte));
24
25            if res.is_err() {
26                return Err(core::fmt::Error);
27            }
28        }
29        Ok(())
30    }
31}
k210_hal/stdout.rs

k210_hal/
stdout.rs
