cortex-m-rt/examples/override-exception.rs


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//! How to override the hard fault exception handler and the default exception handler

#![deny(unsafe_code)]
#![deny(warnings)]
#![no_main]
#![no_std]

extern crate cortex_m;
extern crate cortex_m_rt as rt;
extern crate panic_semihosting;

use cortex_m::asm;
use rt::{entry, exception, ExceptionFrame};

#[entry]
fn main() -> ! {
    loop {}
}

#[exception(DefaultHandler)]
fn default_handler(_irqn: i16) {
    asm::bkpt();
}

#[exception(HardFault)]
fn hard_fault(_ef: &ExceptionFrame) -> ! {
    asm::bkpt();

    loop {}
}