examples/safe-static-mut-ref.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

//! Safe creation of `&'static mut` references
#![deny(unsafe_code)]
#![deny(warnings)]
#![feature(proc_macro)]
#![no_std]

extern crate cortex_m_rtfm as rtfm;
extern crate stm32f103xx;

use rtfm::app;

app! {
    device: stm32f103xx,

    resources: {
        static BUFFER: [u8; 16] = [0; 16];
    },

    init: {
        resources: [BUFFER],
    },
}

fn init(_p: init::Peripherals, r: init::Resources) {
    let _buf: &'static mut [u8] = r.BUFFER;
}

fn idle() -> ! {
    loop {
        rtfm::wfi();
    }
}