# Change Log
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/)
and this project adheres to [Semantic Versioning](http://semver.org/).
## [Unreleased]
## [v0.13.0] - 2022-04-04
### Changed
- `DmaSet` & `Transfer` take channel after stream generic, then other [#477]
- Depracate "rt" feature as enabled by-default in `pac` [#476]
- Add `Pin::interrupt()` helper method [#476]
- Add restriction for setting pins in alternate mode (`IntoAF`), add docs [#474]
- Explicit order for PINS, more smart aliases for peripherals [#472]
- Add `AFn` type aliases for `Alternate<n>` [#471]
- CI updates + cache [#468]
- Add missing `embedded-hal 1.0` for `DynamicPin` [#470]
- Remove pull resistor from `Input` mode, use `Pull` enum instead, add universal `into_mode` pin converter [#467]
- Move pin mode at the end of generics, add defaults for modes,
bump MSRV to 1.59 [#418]
- Move hd44780-driver to dev-dependencies [#465]
### Fixed
- Fixed RCC example [#473]
- Enable the defmt feature on fugit when the defmt feature on the
crate is enabled [#465]
### Added
- Support eMMC peripherals using SDIO module [#458]
- `defmt::Format` derive on enums behind `defmt` feature [#460]
- SPI transactional impl [#464]
[#418]: https://github.com/stm32-rs/stm32f4xx-hal/pull/418
[#458]: https://github.com/stm32-rs/stm32f4xx-hal/pull/458
[#460]: https://github.com/stm32-rs/stm32f4xx-hal/pull/460
[#464]: https://github.com/stm32-rs/stm32f4xx-hal/pull/464
[#465]: https://github.com/stm32-rs/stm32f4xx-hal/pull/465
[#467]: https://github.com/stm32-rs/stm32f4xx-hal/pull/467
[#468]: https://github.com/stm32-rs/stm32f4xx-hal/pull/468
[#470]: https://github.com/stm32-rs/stm32f4xx-hal/pull/470
[#471]: https://github.com/stm32-rs/stm32f4xx-hal/pull/471
[#472]: https://github.com/stm32-rs/stm32f4xx-hal/pull/472
[#473]: https://github.com/stm32-rs/stm32f4xx-hal/pull/473
[#474]: https://github.com/stm32-rs/stm32f4xx-hal/pull/474
[#476]: https://github.com/stm32-rs/stm32f4xx-hal/pull/476
[#477]: https://github.com/stm32-rs/stm32f4xx-hal/pull/477
## [v0.12.0] - 2022-02-23
### Changed
- Make `Monotonic` implementation generic for `u32` timers, fix `PwmExt` trait [#454]
- Rename `Delay<SYST>` to SysDelay, remove old `Delay<TIM2>`
- Extend timers to 32bit on `Delay`
- Move `MonoTimer` from `timer` to dwt mode [#448]
- Unify serial trait impls for embedded-hal 0.2 & 1.0 [#447]
- Add possibility to select Timer master mode
- Add inherent impl of `embedded_hal::Pwm` methods on `Pwm`s [#439]
- Use `embedded-dma` v0.2 [#440]
- Add LSI support for `Rtc` [#438]
- Use `time` for `Rtc` instead of `rtcc`, add `rtc` example [#436]
- Move `i2c` `embedded-hal` trait impls to `I2c` methods [#431]
- Reexport pins in `gpio` module
- Pwm channels now constants [#432]
- Use fugit rate types instead of custom [#430]
- Add channel events, make Event use bitflags (simplify interrupt handling) [#425]
- reexport `digital::v2::PinState` again [#428]
- Timer impls with time based on `fugit::Duration` same as `Hertz` moved to `timer` module,
added appropriate `Ext` traits implemented on peripherals directly,
added `Pwm` and `fugit-timer` impls [#423] [#449]
### Fixed
- Incorrect values of autoreload in `CountDown::start`, `Pwm::new`, `Delay` and prescaler in `Delay` [#422]
### Added
- Missing `DelayMs<u8>` / `DelayUs<u8>` impls for fugit::Delay
- Support of embedded-hal 1.0.0-alpha.7 [#443]
- `hd44780` example [#441]
- Aliases for peripheral wrappers [#434]
- `WithPwm` trait implemented for timers with channels (internals) [#425]
- `Pwm` struct with `split` method and implementation of embedded-hal::Pwm (similar to f1xx-hal) [#425]
- VSCode setting file
- Add CAN1 PB8/PB9 and SPI3 MOSI PC1 pin mappings for F446 [#421]
- Add embedded-storage traits for flash [#429]
- `Debug` & `defmt::Format` impls for some structures and enums [#385]
[#385]: https://github.com/stm32-rs/stm32f4xx-hal/pull/385
[#421]: https://github.com/stm32-rs/stm32f4xx-hal/pull/421
[#422]: https://github.com/stm32-rs/stm32f4xx-hal/pull/422
[#423]: https://github.com/stm32-rs/stm32f4xx-hal/pull/423
[#425]: https://github.com/stm32-rs/stm32f4xx-hal/pull/425
[#428]: https://github.com/stm32-rs/stm32f4xx-hal/pull/428
[#429]: https://github.com/stm32-rs/stm32f4xx-hal/pull/429
[#431]: https://github.com/stm32-rs/stm32f4xx-hal/pull/431
[#432]: https://github.com/stm32-rs/stm32f4xx-hal/pull/432
[#434]: https://github.com/stm32-rs/stm32f4xx-hal/pull/434
[#436]: https://github.com/stm32-rs/stm32f4xx-hal/pull/436
[#438]: https://github.com/stm32-rs/stm32f4xx-hal/pull/438
[#439]: https://github.com/stm32-rs/stm32f4xx-hal/pull/439
[#440]: https://github.com/stm32-rs/stm32f4xx-hal/pull/440
[#443]: https://github.com/stm32-rs/stm32f4xx-hal/pull/443
[#441]: https://github.com/stm32-rs/stm32f4xx-hal/pull/441
[#430]: https://github.com/stm32-rs/stm32f4xx-hal/pull/430
[#447]: https://github.com/stm32-rs/stm32f4xx-hal/pull/447
[#448]: https://github.com/stm32-rs/stm32f4xx-hal/pull/448
[#449]: https://github.com/stm32-rs/stm32f4xx-hal/pull/449
[#454]: https://github.com/stm32-rs/stm32f4xx-hal/pull/454
### Changed
- Fix Width of TIM5 F410 [#409]
- up `cortex-m` to 0.7.4, use `cycle_count` instead of `get_cycle_count` on DWT [#415]
[#409]: https://github.com/stm32-rs/stm32f4xx-hal/pull/409
[#415]: https://github.com/stm32-rs/stm32f4xx-hal/pull/415
## [v0.11.1] - 2021-12-30
- Remove optional `atat` dependency [#408]
[#408]: https://github.com/stm32-rs/stm32f4xx-hal/pull/408
## [v0.11.0] - 2021-12-29
### Added
- Added `Counter` with `CountDown<Time=fugit::TimerDuration>` and `atat::Clock` implementations [#381]
- `Into<serial::Config>` for `Bps` [#387]
- Added the missing DMA implementations for USART3 [#373]
- `DynamicPin` with dynamically changed mode, remove `AF` constants [#372]
- `count_down` constructor for `Timer` -> `CountDownTimer` without start [#382]
- Implementation of RTIC Monotonic for TIM2 & TIM5 under `rtic` feature [#380] [#390]
- `IoPin` for `Output<OpenDrain>> <-> Input<Floating>>` [#374]
- `IoPin` for `Output<PushPull>> <-> Input<PullUp>> and Input<PullDown>>` [#389]
- Add `internal_pull_down` to `Pin<Output<OpenDrain>>` and `Pin<Alternate<PushPull>>` for symmetry
with `internal_pull_up` [#399]
- Added `peripheral` for DMA read access to peripheral [#396]
- Added ADC2+ADC3 implementations to DMA Transfer [#396]
- Added `reference_voltage` to Adc [#396]
[#372]: https://github.com/stm32-rs/stm32f4xx-hal/pull/372
[#373]: https://github.com/stm32-rs/stm32f4xx-hal/pull/373
[#396]: https://github.com/stm32-rs/stm32f4xx-hal/pull/396
[#374]: https://github.com/stm32-rs/stm32f4xx-hal/pull/374
[#380]: https://github.com/stm32-rs/stm32f4xx-hal/pull/380
[#381]: https://github.com/stm32-rs/stm32f4xx-hal/pull/381
[#382]: https://github.com/stm32-rs/stm32f4xx-hal/pull/382
[#389]: https://github.com/stm32-rs/stm32f4xx-hal/pull/389
[#390]: https://github.com/stm32-rs/stm32f4xx-hal/pull/390
[#399]: https://github.com/stm32-rs/stm32f4xx-hal/pull/399
### Changed
- Correct default mode for debugger pins [#405]
- Move `embedded-hal` implementations to subdirs [#404]
- Qei macro cleanups [#403]
- Update RTIC to 1.0 [#401]
- Finish SDIO data transmission before querying card status in `write_block` [#395]
- SDIO: Rewrite loop conditions to silence clippy
- Unify alternate pin constraints [#393]
- Prevent overflow when optimizing SAI PLL [#419]
- [breaking-change] Use `&Clocks` instead of `Clocks` [#387]
- Split and rename `GetBusFreq` -> `BusClock`, `BusTimerClock` [#386]
- [breaking-change] Remove `Can::new_unchecked`. Add `Can::tx` and `Can::rx` [#384]
- [breaking-change] Make `Alternate` generic over `Otype` instead of separate `Alternate` and `AlternateOD` [#383]
- [breaking-change] Bump `stm32f4` to 0.14. Update RTIC based examples to use `rtic` 0.6 [#367]
- [breaking-change] Bump `bxcan` to 0.6 [#371]
- fix #362: ADC voltage conversion might be incorrect [#397]
- [breaking-change] Change `Pin<Output<OpenDrain>>::internal_pull_up` signature from `(&mut self, _: bool) -> ()`
to `(self, _: bool) -> Self`. [#399]
[#367]: https://github.com/stm32-rs/stm32f4xx-hal/pull/367
[#371]: https://github.com/stm32-rs/stm32f4xx-hal/pull/371
[#383]: https://github.com/stm32-rs/stm32f4xx-hal/pull/383
[#384]: https://github.com/stm32-rs/stm32f4xx-hal/pull/384
[#386]: https://github.com/stm32-rs/stm32f4xx-hal/pull/386
[#387]: https://github.com/stm32-rs/stm32f4xx-hal/pull/387
[#393]: https://github.com/stm32-rs/stm32f4xx-hal/pull/393
[#395]: https://github.com/stm32-rs/stm32f4xx-hal/pull/395
[#397]: https://github.com/stm32-rs/stm32f4xx-hal/pull/397
[#401]: https://github.com/stm32-rs/stm32f4xx-hal/pull/401
[#403]: https://github.com/stm32-rs/stm32f4xx-hal/pull/403
[#404]: https://github.com/stm32-rs/stm32f4xx-hal/pull/404
[#405]: https://github.com/stm32-rs/stm32f4xx-hal/pull/405
[#419]: https://github.com/stm32-rs/stm32f4xx-hal/pull/419
## [v0.10.1] - 2021-10-26
- Fix `cortex-m-rt` dependency
## [v0.10.0] - 2021-09-22
### Added
- PWM channels for timers 9-14 [#364]
- `ws2812_spi` example [#363]
- `AsRef/AsMut<Rx/Tx` for Serial [#355]
- `spi::Transactional` [#356]
- `IoPin` for `Output<OpenDrain>` and `Output<PushPull>> <-> Input<Floating>>` [#356]
- I2c `Mode` with duty_cycle [#353]
- Simple docs in gpio. `into_<output>_in_state`, `with_<output>_in_state` [#351]
- Weaker constrains for examples [#351]
- Deprecate `stm32` alias. [#351]
- Temporary change pin mode [#346]
- More badges in README [#345]
- `RccBus` & `GetBusFreq` traits. `AHBx`, `APBx` structures [#342]
- Filler `NoPin` type [#340]
- Add inherent impl of `PwmPin` methods on `PwmChannel`s.
- `Serial:tx` and `Serial::rx` that take only 1 pin [#332]
- Instead of `Alternate<AF1>` you can just use `Alternate<1>` [#328]
- `PinState` and `get/set_state` [#325]
- Inherent methods for infallible digital operations [#325]
- Generic `into_alternate` and `into_alternate_open_drain`. Non-generic ones are deprecated [#266]
- `PinExt` trait. Make `ExtiPin` implementation generic [#323]
- `Enable`, `LPEnable` and `Reset` traits in `rcc`. Implemented for all used peripherals [#311]
- Features corresponding to peripherals [#311]
- Improved documentation of rng and prelude [#303]
- Added an example of integration with RTIC [#295]
- Added internal pullup configuaration for the AlternateOD pin type [#298]
- Added USART support for sending and receiving 9-bit words [#299]
- Added support for I2S communication using SPI peripherals, and two examples [#265]
- Added support for some LCD controllers using the Flexible Static Memory
Controller / Flexible Memory Controller [#297]
- Added `DelayMs` / `DelayUs` impls for TIM2/TIM5 [#309]
- Added an example for using the new FSMC interface with the provided
`display-interface` driver and the `st7789` driver on a F413Discovery board [#302]
- Derive `Eq`, `PartialEq`, `Copy` and `Clone` for error types [#306]
- Added open-drain pin mode support for PWM output [#313]
- Added missing error flags for dma streams [#318]
- Added PWM input capability to all compatable timers [#271]
- Bidi mode support for SPI [#349]
- Added `listen` and `unlisten` for RX- and TX-only USART [#357]
- Added function for clearing the idle line interrupt in USART [#357]
- Added flash driver [#347]
- Added `gpio::gpiox::Pxi::downgrade2` method [#323]
- Added DMA support for SPI [#319]
[#265]: https://github.com/stm32-rs/stm32f4xx-hal/pull/265
[#266]: https://github.com/stm32-rs/stm32f4xx-hal/pull/266
[#271]: https://github.com/stm32-rs/stm32f4xx-hal/pull/271
[#295]: https://github.com/stm32-rs/stm32f4xx-hal/pull/295
[#297]: https://github.com/stm32-rs/stm32f4xx-hal/pull/297
[#298]: https://github.com/stm32-rs/stm32f4xx-hal/pull/298
[#302]: https://github.com/stm32-rs/stm32f4xx-hal/pull/302
[#303]: https://github.com/stm32-rs/stm32f4xx-hal/pull/303
[#306]: https://github.com/stm32-rs/stm32f4xx-hal/pull/306
[#309]: https://github.com/stm32-rs/stm32f4xx-hal/pull/309
[#311]: https://github.com/stm32-rs/stm32f4xx-hal/pull/311
[#313]: https://github.com/stm32-rs/stm32f4xx-hal/pull/313
[#325]: https://github.com/stm32-rs/stm32f4xx-hal/pull/325
[#328]: https://github.com/stm32-rs/stm32f4xx-hal/pull/328
[#318]: https://github.com/stm32-rs/stm32f4xx-hal/pull/318
[#319]: https://github.com/stm32-rs/stm32f4xx-hal/pull/319
[#322]: https://github.com/stm32-rs/stm32f4xx-hal/pull/322
[#323]: https://github.com/stm32-rs/stm32f4xx-hal/pull/323
[#332]: https://github.com/stm32-rs/stm32f4xx-hal/pull/332
[#340]: https://github.com/stm32-rs/stm32f4xx-hal/pull/340
[#342]: https://github.com/stm32-rs/stm32f4xx-hal/pull/342
[#345]: https://github.com/stm32-rs/stm32f4xx-hal/pull/345
[#346]: https://github.com/stm32-rs/stm32f4xx-hal/pull/346
[#347]: https://github.com/stm32-rs/stm32f4xx-hal/pull/347
[#349]: https://github.com/stm32-rs/stm32f4xx-hal/pull/349
[#351]: https://github.com/stm32-rs/stm32f4xx-hal/pull/351
[#353]: https://github.com/stm32-rs/stm32f4xx-hal/pull/353
[#355]: https://github.com/stm32-rs/stm32f4xx-hal/pull/355
[#356]: https://github.com/stm32-rs/stm32f4xx-hal/pull/356
[#357]: https://github.com/stm32-rs/stm32f4xx-hal/pull/357
[#363]: https://github.com/stm32-rs/stm32f4xx-hal/pull/363
### Changed
- Bumped a few dependencies and fixed example fallout [#365]
- Uncommented two TIM5 channels for STM32F410 [#364]
- Update examples with `embedded-graphics`,
remove deprecated `I2s::i2sx` [#358]
- `into_alternate()` may be omitted now for `Serial`, `Spi`, `I2s`, `I2c` [#359]
- [breaking-change] 115_200 bps for Serial by default [#355]
- Move `Tx`, `Rx` structures into `Serial` [#355]
- Update `embedded-hal` dependendency [#356]
- [breaking-change] `into_<output>` fns set pin in `Low` state by default [#351]
- Use manual impls for blocking spi instead of `Default` [#356]
- Split `Stream` trait on `Stream` and `StreamISR`,
use const generics for `Stream` and `Channel` [#341]
- [breaking-change] `Timer::new` now just initializes peripheral,
use `.start_count_down` to start count, `pwm` or `delay` on `Timer` struct [#337]
- Add `Spi::new`, `I2s::new, `spi::Instance` and deprecate `Spi:spix`,
deprecate `Serial::usartx`, remove deprecated `I2c::i2cx` [#330]
- Deprecate `free` in favour of `release` [#333]
- Clean features in `serial`, `spi`, `i2c`, `timer` [#331], [#334]
- Internal implementation of GPIO Pin API changed to use Const Generics [#266]
- Update the sdio driver to match the changes in the PAC [#294]
- Update README.md with current information [#293]
- Updated serial driver to use 32-bit reads and writes when accessing the USART data register [#299]
- Add possibility to use DMA with the ADC abstraction, add example for ADC with DMA [#258]
- Remove unsafe code from ADC DMA example [#301]
- [breaking-change] DMA: Memory to peripheral transfers now only require `StaticReadBuffer` [#257].
- Rename erased `Pin` to `EPin`, partially erased `PXx` to `PEPin`, `PX` to `Pin` [#339]
- [breaking-change] `gpio::Edge::{RISING, FALLING, RISING_FALLING}` are renamed to `Rising`, `Falling`, `RisingFalling`, respectively [#343]
[#266]: https://github.com/stm32-rs/stm32f4xx-hal/pull/266
[#293]: https://github.com/stm32-rs/stm32f4xx-hal/pull/293
[#294]: https://github.com/stm32-rs/stm32f4xx-hal/pull/294
[#299]: https://github.com/stm32-rs/stm32f4xx-hal/pull/299
[#258]: https://github.com/stm32-rs/stm32f4xx-hal/pull/258
[#257]: https://github.com/stm32-rs/stm32f4xx-hal/pull/257
[#301]: https://github.com/stm32-rs/stm32f4xx-hal/pull/301
[#330]: https://github.com/stm32-rs/stm32f4xx-hal/pull/330
[#331]: https://github.com/stm32-rs/stm32f4xx-hal/pull/331
[#333]: https://github.com/stm32-rs/stm32f4xx-hal/pull/333
[#334]: https://github.com/stm32-rs/stm32f4xx-hal/pull/334
[#337]: https://github.com/stm32-rs/stm32f4xx-hal/pull/337
[#339]: https://github.com/stm32-rs/stm32f4xx-hal/pull/339
[#341]: https://github.com/stm32-rs/stm32f4xx-hal/pull/341
[#343]: https://github.com/stm32-rs/stm32f4xx-hal/pull/343
[#349]: https://github.com/stm32-rs/stm32f4xx-hal/pull/349
[#351]: https://github.com/stm32-rs/stm32f4xx-hal/pull/351
[#355]: https://github.com/stm32-rs/stm32f4xx-hal/pull/355
[#356]: https://github.com/stm32-rs/stm32f4xx-hal/pull/356
[#358]: https://github.com/stm32-rs/stm32f4xx-hal/pull/358
[#359]: https://github.com/stm32-rs/stm32f4xx-hal/pull/359
[#364]: https://github.com/stm32-rs/stm32f4xx-hal/pull/364
[#365]: https://github.com/stm32-rs/stm32f4xx-hal/pull/365
### Fixed
- Fixed typo in string representation in DMAError type [#305]
- Corrected pin definitions for the Flexible Static Memory Controller / Flexible Memory Controller
LCD interface [#312]
- Eliminated `channel_impl` macro warnings caused by unused ident [#323]
[#305]: https://github.com/stm32-rs/stm32f4xx-hal/pull/305
[#312]: https://github.com/stm32-rs/stm32f4xx-hal/pull/312
[#323]: https://github.com/stm32-rs/stm32f4xx-hal/pull/323
## [v0.9.0] - 2021-04-04
### Changed
- [breaking-change] Bump `rand_core` dependency to 0.6.
- [breaking-change] Bump main crate dependencies `cortex-m`, `bare-metal` and `nb`
- [breaking-change] Bump `stm32f4` version to 0.13.
- Removing error on I2C bus errors due to errata workaround.
- [breaking-change] Updated synopsys-usb-otg dependency to v0.2.0.
- Cleanups to the Sdio driver, some hw independent functionality moved to the new sdio-host library.
- [breaking-change] Sdio is disabled by default, enable with the `sdio` feature flag.
- Move SDIO card power handling to its own function.
- [breaking-change] Add a 2 ms delay after changing SDIO card power setting.
- [breaking-change] Changed sdio::{read, write}\_block buf argument to &[u8; 512].
- Voltage regulator overdrive is enabled where supported and required for selected HCLK.
- I2C driver updated to detect and clear all error condition flags.
- Allow for skipping an ongoing DMA transfer if not using double buffering.
- Change DMA traits to `embedded-dma`.
- Use bitbanding during clock enabling and peripheral reset to avoid data races.
- Add missing `Write` implementation for `Serial` and implemented better error handling.
- [breaking-change] ADC2 and ADC3 no longer allow access to VREF, VBAT, or the internal
temperature measurement (ADC2 and ADC3 do not have an internal connection for these channels)
- Improved Serial baudrate calculation to be correct for higher baudrates or lower PCLKs
- Added `SysCfg` wrapper to enforce clock enable for `SYSCFG`
- [breaking-change] gpio::ExtiPin now uses `SysCfg` wrapper instead of `SYSCFG`
- Change `WriteBuffer + 'static` to `StaticWriteBuffer`in the DMA module.
- Fixed a race condition where SPI writes could get stuck in an error state forever (PR #269).
- Implement generics on the serial module.
- Implement generics on the i2c module, not including fast i2c.
- Updated SDIO_D0 pin to PB7 for stm32f411 [#277]
- Address ST erratum 2.1.13 (DM00037591) [#278]
- Implement generics on the qei module.
- Bump ssd1306 dev-dependency and cleanup examples
### Added
- Reexport PAC as `pac` for consistency with other crates, consider `stm32` virtually deprecated
- Added external interrupt (EXTI) support for output pins
- Added `check_interrupt` method for GPIO pins
- Basic support for DAC
- Add initial DMA support
- Allow specification of ADC reference voltage in ADC configuraton structure
- Added support for hardware-based CRC32 functionality
- Add `MonoTimer` and `Instant` structs for basic time measurement.
- Added support for I2S and SAI clocks
- Added support for canbus with the bxcan crate.[#273] The version range is `<=0.4, <0.6`. (Currently
the latest version is `0.5.0`) [#286]
- Added a `freeze_unchecked` method [#231]
- Added support for the Real Time Clock (RTC)
- Added option to bypass the HSE oscillator and use a clock input [#263]
- Added support for CAN on additional models: STM32F412, STM32F413, STM32F415,
STM32F417, STM32F423, STM32F427, STM32F429, STM32F437, STM32F439, STM32F469,
and STM32F479 [#262]
[#231]: https://github.com/stm32-rs/stm32f4xx-hal/pull/231
[#262]: https://github.com/stm32-rs/stm32f4xx-hal/pull/262
[#263]: https://github.com/stm32-rs/stm32f4xx-hal/pull/263
[#278]: https://github.com/stm32-rs/stm32f4xx-hal/issues/278
[#273]: https://github.com/stm32-rs/stm32f4xx-hal/pull/273
[#286]: https://github.com/stm32-rs/stm32f4xx-hal/pull/286
### Fixed
- Stability fixes related to SD card write
- Fixed issue where timer generated a spurious interrupt after start
- Allow implementations for DMASet from outside the crate [#237]
- DMA: Make it possible to create the wrapper types for the timers [#237]
- DMA: Fix some `compiler_fences` [#237]
- DMA: Fix docs [#237]
- RCC for F412, F413, F423, F446: Add missing configuration of PLLI2SCFGR.PLLI2SN [#261]
- RCC for F411: Add missing configuration of PLLI2SCFGR.PLLI2SM [#264]
- CRC: Fixed CRC clock not being enabled [#283]
[#237]: https://github.com/stm32-rs/stm32f4xx-hal/pull/237
[#261]: https://github.com/stm32-rs/stm32f4xx-hal/pull/261
[#264]: https://github.com/stm32-rs/stm32f4xx-hal/pull/264
[#283]: https://github.com/stm32-rs/stm32f4xx-hal/pull/283
## [v0.8.3] - 2020-06-12
### Fixed
- Make sure that I2C writes are concluded with a STOP condition
## [v0.8.2] - 2020-05-29
### Added
- Added sdio driver
- Allow specifying the desired SDIO bus speed during initialization
## [v0.8.1] - 2020-05-10
### Added
- Implement `timer::Cancel` trait for `Timer<TIM>`.
- Added DWT cycle counter based delay and stopwatch, including an example.
## [v0.8.0] - 2020-04-30
### Changed
- [breaking-change] Updated stm32f4 dependency to v0.11.
- Wait 16 cycles after setting prescalers for some clock domains to follow manual.
- Fixed `TIM9` `pclk` and `ppre`.
### Added
- Implement `timer::Cancel` trait for `Timer<SYST>`.
- Added PWM support and example.
## [v0.7.0] - 2020-03-07
### Changed
- Added more type states for open drain AF modes so we can prevent (potential fatal) I2C misuse
- [breaking-change] Updated stm32f4 dependency to v0.10.0.
### Added
- Added examples in the examples folder.
- Added USB driver.
- PLL48Clk configuration.
- Added bit-banding implementation.
- Added support for RNG peripheral and rand_core, and an example that uses it.
## [v0.6.0] - 2019-10-19
### Changed
- [breaking-change] Updated embedded-hal dependency to v0.2.3 and switched
to digtial::v2 traits.
### Added
- Implemented `Qei` trait
- Implemented `clear_interrupt()` method for TIM timers
## [v0.5.0] - 2019-04-27
### Changed
- [breaking-change] Updated stm32f4 dependency to v0.7.0.
- Replace macro by generic impl over spi1::RegisterBlock in SPI.
### Fixed
- Properly terminate I2C read with a NACK then a STOP.
## [v0.4.0] - 2019-04-12
### Added
- API to enable and disable SPI interrupts
- Hal ADC supporting one-shot and sequence conversion of regular channels.
- Implement IndependentWatchdog for the IWDG peripheral
- Implement reading the device electronic signature from flash
### Changed
- [breaking-change] Updated cortex-m dependency to v0.6.0.
## [v0.3.0] - 2019-01-14
### Added
- Support ToggleableOutputPin trait in GPIO to allow using toggle().
- Possibility to configure GPIO pins into analog input mode.
- Possibility to configure GPIO pins to generate external interrupts.
- Support NoTx and NoRx in Serial to allow setting up a Rx only or Tx only port.
- Support for stm32f405, stm32f410, stm32f413, stm32f415, stm32f417, stm32f423,
stm32f427, stm32f437, stm32f439, stm32f446, stm32f469 and stm32f479.
- Support for I2C2 and I2C3 in addition to I2C1.
- Read and Write implementations for Serial.
### Changed
- More versatile RCC clocks configuration.
- Allow using any pair of Pins for I2C rather than only a few hardcoded ones.
- Allow using any pair of Pins for Serial rather than only a few hardcoded ones.
- [breaking-change] Updated stm32f4 dependency to v0.6.0.
### Fixed
- Serial baud rate divisor fractional overflow.
## [v0.2.8] - 2018-12-16
### Fixed
- Documentation generation.
## [v0.2.7] - 2018-12-16
### Changed
- Switched to Rust 2018 edition.
## [v0.2.6] - 2018-12-06
### Added
- Support for GPIOH PH0 and PH1 on stm32f401.
- Support for serial port Idle interrupt.
- Basic `memory.x` linker script and default linking options.
### Changed
- Changed repository URL.
### Fixed
- I2C clock setting.
- GPIO `set_open_drain` is now setting the `otyper` register correctly.
## [v0.2.5] - 2018-11-17
### Added
- Support for stm32f411.
- Spi trait implementation.
### Changed
- Updated stm32f4 dependency to v0.4.0.
- Simplified and improved RCC parameters selection.
## [v0.2.4] - 2018-11-05
### Added
- Support for Serial interrupt enable and disable.
### Changed
- Made the `rt` feature of stm32f4 optionnal.
### Fixed
- Avoid overwritting the cache bits in `flash.acr`.
## [v0.2.3] - 2018-11-04
### Added
- Support for stm32f412.
- Gpio InputPin implementation for output pins to allow reading current
value of open drain output pins.
- Timer trait implementation.
### Changed
- No default features selected for the stm32f4 crate. User must specify its
specific device.
## [v0.2.2] - 2018-10-27
### Added
- Gpio `set_speed`.
## [v0.2.1] - 2018-10-13
### Fixed
- Removed unnecessary feature gates.
## [v0.2.0] - 2018-10-11
### Added
- Support for stm32f401.
- [breaking-change]. Support for setting serial port word length, parity and
stop bits.
### Changed
- Support longer Delay without asserting.
## v0.1.0 - 2018-10-02
### Added
- Support for stm32f407 and stm32f429.
[Unreleased]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.13.0...HEAD
[v0.13.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.12.0...v0.13.0
[v0.12.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.11.1...v0.12.0
[v0.11.1]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.11.0...v0.11.1
[v0.11.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.10.1...v0.11.0
[v0.10.1]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.10.0...v0.10.1
[v0.10.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.9.0...v0.10.0
[v0.9.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.8.3...v0.9.0
[v0.8.3]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.8.2...v0.8.3
[v0.8.2]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.8.1...v0.8.2
[v0.8.1]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.8.0...v0.8.1
[v0.8.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.7.0...v0.8.0
[v0.7.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.6.0...v0.7.0
[v0.6.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.5.0...v0.6.0
[v0.5.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.4.0...v0.5.0
[v0.4.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.3.0...v0.4.0
[v0.3.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.8...v0.3.0
[v0.2.8]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.7...v0.2.8
[v0.2.7]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.6...v0.2.7
[v0.2.6]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.5...v0.2.6
[v0.2.5]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.4...v0.2.5
[v0.2.4]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.3...v0.2.4
[v0.2.3]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.2...v0.2.3
[v0.2.2]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.1...v0.2.2
[v0.2.1]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.2.0...v0.2.1
[v0.2.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.1.0...v0.2.0