#[derive(Copy, Clone)]
struct Mac {
    foo: u32,
    bar: u8,
}
#[derive(Copy, Clone)]
#[repr(u32)]
enum Magic {
    Used = 0xABBA,
    Primed = 0x1337,
}
#[derive(Copy, Clone)]
struct Warm {
    magic: Magic,
    mac: Mac,
    crc: u8,
}
#[no_mangle]
#[link_section = ".__warm"]
static mut WARM_DATA: GroundedCell<[u8; 2048]> = GroundedCell::uninit();