turn into a Cargo crate

src/examples/_2_panic.rs

@@ -0,0 +1,39 @@
+//! Redirecting `panic!` messages
+//!
+//! The `cortex-m-rt` crate provides two options to redirect `panic!` messages
+//! through these two Cargo features:
+//!
+//! - `panic-over-semihosting`. `panic!` messages will be printed to the OpenOCD
+//!    console using semihosting. This is slow.
+//!
+//! - `panic-over-itm`. `panic!` messages will be send through the ITM port 0.
+//!   This is much faster but requires ITM support on the device.
+//!
+//! If neither of these options is specified then the `panic!` message will be
+//! lost. Note that all `panic!`s will trigger a debugger breakpoint.
+//!
+//! ```
+//! 
+//! #![feature(used)]
+//! #![no_std]
+//! 
+//! extern crate cortex_m;
+//! extern crate cortex_m_rt;
+//! 
+//! use cortex_m::asm;
+//! 
+//! fn main() {
+//!     panic!("Oops");
+//! }
+//! 
+//! // As we are not using interrupts, we just register a dummy catch all handler
+//! #[allow(dead_code)]
+//! #[used]
+//! #[link_section = ".rodata.interrupts"]
+//! static INTERRUPTS: [extern "C" fn(); 240] = [default_handler; 240];
+//! 
+//! extern "C" fn default_handler() {
+//!     asm::bkpt();
+//! }
+//! ```
+// Auto-generated. Do not modify.