#![no_main] #![no_std] extern crate cortex_m; #[macro_use] extern crate cortex_m_rt; // TODO pick a panicking behavior // extern crate panic_abort; // requires nightly // extern crate panic_itm; // requires ITM support // extern crate panic_semihosting; // requires a debugger entry!(main); fn main() -> ! { loop { // TODO your code goes here } }