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Correct use of std

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James Munns
2019-01-13 16:55:59 +01:00
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parent b370fa289a
commit 9c05a419fc
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src/peripherals/a-first-attempt.md
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@@ -48,7 +48,7 @@ Now, the problem is that compilers are clever. If you make two writes to the sam
```rust,ignore
let systick = unsafe { &mut *(0xE000_E010 as *mut SysTick) };
let time = unsafe { std::ptr::read_volatile(&mut systick.cvr) };
let time = unsafe { core::ptr::read_volatile(&mut systick.cvr) };
```
So, we've fixed one of our four problems, but now we have even more `unsafe` code! Fortunately, there's a third party crate which can help - [`volatile_register`].