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v0.2.0

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This commit is contained in:
Jorge Aparicio
2017-07-07 18:34:47 -05:00
parent 6780d81e4d
commit 805b63afb1
23 changed files with 400 additions and 222 deletions
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33
examples/override-exception-handler.rs
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@@ -1,17 +1,26 @@
//! Overriding an exception
//! Overriding an exception handler
//!
//! **NOTE** You have to disable the `cortex-m-rt` crate's "exceptions" feature
//! to make this work.
//! You can override an exception handler using the [`exception!`][1] macro.
//!
//! [1]: https://docs.rs/cortex-m-rt/0.3.2/cortex_m_rt/macro.exception.html
//!
//! The default exception handler can be overridden using the
//! [`default_handler!`][2] macro
//!
//! [2]: https://docs.rs/cortex-m-rt/0.3.2/cortex_m_rt/macro.default_handler.html
//!
//! ---
#![feature(used)]
#![no_std]
extern crate cortex_m;
#[macro_use(exception)]
extern crate cortex_m_rt;
use core::ptr;
use cortex_m::{asm, exception};
use cortex_m::asm;
fn main() {
unsafe {
@@ -20,25 +29,17 @@ fn main() {
}
}
extern "C" fn hard_fault(_: exception::HardFault) {
exception!(HARD_FAULT, handler);
fn handler() {
// You'll hit this breakpoint rather than the one in cortex-m-rt
asm::bkpt()
}
// When the "exceptions" feature is disabled, you'll have to provide this symbol
#[allow(dead_code)]
#[used]
#[link_section = ".rodata.exceptions"]
static EXCEPTIONS: exception::Handlers = exception::Handlers {
// This is the exception handler override
hard_fault: hard_fault,
..exception::DEFAULT_HANDLERS
};
// As we are not using interrupts, we just register a dummy catch all handler
#[allow(dead_code)]
#[used]
#[link_section = ".rodata.interrupts"]
#[link_section = ".vector_table.interrupts"]
static INTERRUPTS: [extern "C" fn(); 240] = [default_handler; 240];
extern "C" fn default_handler() {