38 lines
666 B
Rust
38 lines
666 B
Rust
//! Prints "Hello, world!" on the OpenOCD console using semihosting
|
|
//!
|
|
//! ---
|
|
|
|
#![no_main]
|
|
#![no_std]
|
|
|
|
#[macro_use]
|
|
extern crate cortex_m_rt as rt;
|
|
extern crate cortex_m_semihosting as sh;
|
|
extern crate panic_semihosting;
|
|
|
|
use core::fmt::Write;
|
|
|
|
use rt::ExceptionFrame;
|
|
use sh::hio;
|
|
|
|
entry!(main);
|
|
|
|
fn main() -> ! {
|
|
let mut stdout = hio::hstdout().unwrap();
|
|
writeln!(stdout, "Hello, world!").unwrap();
|
|
|
|
loop {}
|
|
}
|
|
|
|
exception!(HardFault, hard_fault);
|
|
|
|
fn hard_fault(ef: &ExceptionFrame) -> ! {
|
|
panic!("HardFault at {:#?}", ef);
|
|
}
|
|
|
|
exception!(*, default_handler);
|
|
|
|
fn default_handler(irqn: i16) {
|
|
panic!("Unhandled exception (IRQn = {})", irqn);
|
|
}
|