Prepare releasing 0.7 (#305)

* Do not warn on unnecessary unsafe

* Use DWT::cycle_count() instead of deprecated get_cycle_count()

* Prepare releasing 0.7

CHANGELOG.md

@@ -3,12 +3,57 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [v0.7.0] - 2021-04-04
 
-## Changed
+### Added
 
+    - Add delay implementation based on `cortex_m::asm::delay`.
+    - Implement `RngCore` and `CryptoRng` for the hardware RNG.
+    - Support analog to digital converters (ADC).
+    - Support SPI slave mode.
+    - Add DMA and interrupt support for SPI and ADC peripherals.
+    - Add support for measuring Vref, Vbat and temperature.
+    - Add alternate function 0 to GPIO.
+    - Add preliminary bxCAN support.
+    - Add more GPIO combinations for I2C and PWM peripherals.
+    - Add wakeup clock sources to RTC config.
+    - Support RTC domain backup registers.
+    - Support I2C on stm32l4x3 devices.
+    - Support I2C3 peripheral on stm32l4x6 devices.
+    - Experimental support for the Synopsis USB library.
+    - Experimental support for USB OTG FS for stm32l4x5 and stm32l4x6 devices.
+    - Support stm32l4r9 devices.
+
+### Changed
+
+    - Use device-specific features rather than by-peripheral features.
     - Use `fugit` duration nd rate units instead of custom
     - Use const-generics for GPIO (require Rust 1.51)
+    - Import I2C implementation from `stm32h7xx-hal` crate.
+    - Use a `Config` struct for initializing I2C peripherals.
+    - Check that the clock requested for the low-power timer is enabled.
+    - Take `clocks` argument by value when setting up low-power timer.
+    - Use sane low-power timer defaults (LSI, no prescaler).
+    - Make `LowPowerTimer<_>::set_autoreload()` public.
+    - Enable SPI2 for all stm32l4x2 devices as some of them have it.
+    - Target hardfp by default since stm32l4 cores are Cortex-M4F.
+    - Require typed input when converting from milliseconds to hertz.
+    - Rework alternate function typestates.
+    - Use MSI as default/fallback clock source for SYSCLK.
+    - Use specialized PAC for stm32l412 and stm32l422 devices.
+    - Add `toggeable` trait to GPIO pins.
+    - Update `stm32l4` dependency.
+
+### Fixed
+
+    - Fix TIM1 PWM frequency computation.
+    - Fix TIM5 counter width.
+    - Fix PSC computation off-by-one error.
+    - Change wait states values according to datasheet.
+    - Fix incorrect I2C2 on PC0/PC1 on stm32l4x3 devices.
+    - Swap QSPI pins and remove conflicting/wrong implementations.
+    - Add power on GPIOG pins.
+    - Support 0 byte writes on I2C.
 
 ## [v0.6.0] - 2020-12-11
 
@@ -197,7 +242,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 - Initial release
 
-[Unreleased]: https://github.com/stm32-rs/stm32l4xx-hal/compare/v0.6.0...HEAD
+[v0.7.0]: https://github.com/stm32-rs/stm32l4xx-hal/compare/v0.6.0...v0.7.0
 [v0.6.0]: https://github.com/stm32-rs/stm32l4xx-hal/compare/v0.5.0...v0.6.0
 [v0.5.0]: https://github.com/stm32-rs/stm32l4xx-hal/compare/v0.4.0...v0.5.0
 [v0.4.0]: https://github.com/stm32-rs/stm32l4xx-hal/compare/v0.3.6...v0.4.0

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "stm32l4xx-hal"
-version = "0.6.0"
+version = "0.7.0"
 authors = ["Scott Mabin <[email protected]>"]
 description = "Hardware abstraction layer for the stm32l4xx chips"
 keywords = ["no-std", "stm32l4xx", "stm32l4", "embedded", "embedded-hal"]

README.md

@@ -14,7 +14,7 @@ _formerly [MabezDev/stm32l4xx-hal](https://github.com/mabezdev/stm32l4xx-hal)_
 
 ## About
 
-    - Minimum rustc version 1.31
+    - Minimum rustc version 1.51
 
 ## License
 

src/spi.rs

@@ -72,6 +72,7 @@ macro_rules! hal {
         $(
             impl<SCK, MISO, MOSI> Spi<$SPIX, (SCK, MISO, MOSI)> {
                 /// Configures the SPI peripheral to operate in full duplex master mode
+                #[allow(unused_unsafe)]  // Necessary for stm32l4r9
                 pub fn $spiX(
                     spi: $SPIX,
                     pins: (SCK, MISO, MOSI),
@@ -189,6 +190,7 @@ macro_rules! hal {
                 }
 
                 /// Change the baud rate of the SPI
+                #[allow(unused_unsafe)]  // Necessary for stm32l4r9
                 pub fn reclock(&mut self, freq: Hertz, clocks: Clocks) {
                     self.spi.cr1.modify(|_, w| w.spe().clear_bit());
                     self.spi.cr1.modify(|_, w| unsafe {

src/time.rs

@@ -51,7 +51,7 @@ impl MonoTimer {
     /// Returns an `Instant` corresponding to "now"
     pub fn now(&self) -> Instant {
         Instant {
-            now: DWT::get_cycle_count(),
+            now: DWT::cycle_count(),
         }
     }
 }
@@ -65,6 +65,6 @@ pub struct Instant {
 impl Instant {
     /// Ticks elapsed since the `Instant` was created
     pub fn elapsed(&self) -> u32 {
-        DWT::get_cycle_count().wrapping_sub(self.now)
+        DWT::cycle_count().wrapping_sub(self.now)
     }
 }