A question ( maybe dumb ) about:
https://doc.rust-lang.org/stable/core/slice/fn.from_raw_parts.html

I got it working like this:
```Rust
let image_slice = unsafe {
                                    core::slice::from_raw_parts(
                                            BASE_ADDRESS_APP as *const u8,
                                            boot_status.offset as usize,
                                        )
                                    };
```