Make atomic gpio more readable

Author: Sh3Rm4n

CHANGELOG.md

@@ -22,6 +22,20 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Deprecate `Toggle` enum and use `Switch` instead for better naming purposes
   ([#334])
   - Add `impl From<Toggle> for Switch` to reduce churn.
+No changes.
+### Breaking Changes
+
+- The MSRV was bumped to 1.64 ([???])
+- Signature `Uid` struct LUF is returning a `CStr` now. ([???])
+- GPIO configuration functions no longer require registers as arguments ([#213])
+
+### Fixed
+
+- Defmt output of `Uid` struct is fixed ([???])
+
+### Added
+
+- Implement `into_xxx` methods for erased pins ([#213])
 
 ## [v0.9.1] - 2022-09-07
 
@@ -48,7 +62,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Add common derives to `Toggle`. ([#281])
 - Add `is_interrupt_configured` and `configured_interrupts` function to
   `serial::Serial` and `timer::Timer`. ([#281])
-- Implement `into_xxx` methods for erased pins ([#213])
 
 ### Fixed
 
@@ -102,8 +115,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   - Add interrupt support.
 
 [here]: https://github.com/eldruin/rtcc-rs/blob/master/CHANGELOG.md#030---2022-02-19
-- The MSRV was bumped to 1.59 ([#213])
-- GPIO configuration functions no longer require registers as arguments ([#213])
 
 ## [v0.8.2] - 2021-12-14
 

examples/adc.rs

@@ -87,7 +87,7 @@ fn main() -> ! {
 
     // Set up pin PA0 as analog pin.
     // This pin is connected to the user button on the stm32f3discovery board.
-    let mut gpioa = dp.GPIOA.split(&mut rcc.ahb);
+    let gpioa = dp.GPIOA.split(&mut rcc.ahb);
     let mut analog_pin = gpioa.pa0.into_analog();
 
     let mut timer = timer::Timer::new(dp.TIM2, clocks, &mut rcc.apb1);