release 0.23

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [v0.23.0] - 2025-09-22
+
  - Implement `embedded_hal::i2c::I2c` for `I2cMasterDma` [#838]
  - Back to `stm32f4`
  - Implement `Ptr`, `Sealed`, `Steal` for generic `Periph` [#834]
@@ -1116,7 +1118,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Support for stm32f407 and stm32f429.
 
-[Unreleased]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.22.1...HEAD
+[Unreleased]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.23.0...HEAD
+[v0.23.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.22.1...v0.23.0
 [v0.22.1]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.22.0...v0.22.1
 [v0.22.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.21.0...v0.22.0
 [v0.21.0]: https://github.com/stm32-rs/stm32f4xx-hal/compare/v0.20.0...v0.21.0

Cargo.toml

@@ -11,7 +11,7 @@ license = "0BSD"
 name = "stm32f4xx-hal"
 readme = "README.md"
 repository = "https://github.com/stm32-rs/stm32f4xx-hal"
-version = "0.22.1"
+version = "0.23.0"
 
 [package.metadata.docs.rs]
 features = [
@@ -27,12 +27,13 @@ features = [
 targets = ["thumbv7em-none-eabihf"]
 
 [dependencies]
-defmt = { version = "0.3.10", optional = true }
+defmt = { version = "1.0.1", optional = true }
 bxcan = { version = "0.8", optional = true }
 cortex-m = { version = "0.7.7", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.5"
 nb = "1.1"
-rand_core = "0.6.4"
+rand_core_06 = { package = "rand_core", version = "0.6.4" }
+rand_core = "0.9.3"
 synopsys-usb-otg = { version = "0.4.0", features = [
     "cortex-m",
 ], optional = true }
@@ -52,14 +53,14 @@ cortex-m-rtic = { version = "1.1.4", features = [
     "test-critical-section",
 ], optional = true }
 # rtic2
-rtic-time = { version = "2.0", optional = true }
+rtic-time = { version = "2.0.1", optional = true }
 embedded-hal-async = { version = "1.0", optional = true }
-rtic = { version = "2.1.2", features = ["thumbv7-backend"], optional = true }
+rtic = { version = "2.2", features = ["thumbv7-backend"], optional = true }
 atomic-polyfill = { version = "1.0.3", optional = true }
 
 stm32-fmc = { version = "0.4.0", optional = true }
 
-enumflags2 = "0.7.11"
+enumflags2 = "0.7.12"
 embedded-storage = "0.3"
 document-features = "0.2"
 
@@ -70,7 +71,7 @@ version = "0.16.0"
 features = ["atomics"]
 
 [dependencies.time]
-version = "0.3.37"
+version = "0.3.44"
 default-features = false
 
 [dependencies.embedded-hal-02]
@@ -92,27 +93,28 @@ version = "0.5.0"
 optional = true
 
 [dev-dependencies]
-defmt = "0.3.4"
-defmt-rtt = "0.4.0"
-panic-probe = { version = "0.3.2", features = ["print-defmt"] }
+static_cell = "2.1.1"
+defmt = "1.0.1"
+defmt-rtt = "1.0"
+panic-probe = { version = "1.0", features = ["print-defmt"] }
 panic-semihosting = "0.6.0"
 cortex-m-semihosting = "0.5.0"
-heapless = "0.8"
+heapless = "0.9.1"
 panic-halt = "1.0.0"
-ssd1306 = "0.9.0"
+ssd1306 = "0.10.0"
 embedded-graphics = "0.8.1"
 embedded-graphics-07 = { package = "embedded-graphics", version = "0.7.1" }
 embedded-hal-bus = "0.3.0"
 usb-device = "0.3.1"
 usbd-serial = "0.2.0"
-micromath = "2"
+micromath = "2.1"
 dwt-systick-monotonic = "1.1"
 st7789 = "0.7.0"
 rtt-target = { version = "0.6.1" }
 display-interface-spi-04 = { package = "display-interface-spi", version = "0.4.1" }
 ist7920 = "0.1.1"
-smart-leds = "0.3.0"
-ws2812-spi = { version = "0.4.0", features = [] }
+smart-leds = "0.4.0"
+ws2812-spi = { version = "0.5.1", features = [] }
 hd44780-driver = "0.4.0"
 display-interface = "0.5"
 display-interface-04 = { package = "display-interface", version = "0.4.1" }

README.md

@@ -89,15 +89,15 @@ You also need to add some dependencies to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-embedded-hal = "0.2"
+embedded-hal = "1.0"
 nb = "1"
 cortex-m = "0.7"
 cortex-m-rt = "0.7"
 # Panic behaviour, see https://crates.io/keywords/panic-impl for alternatives
-panic-halt = "0.2"
+panic-halt = "1.0"
 
 [dependencies.stm32f4xx-hal]
-version = "0.22.1"
+version = "0.23.0"
 features = ["stm32f407"] # replace the model of your microcontroller here
                          # and add other required features
 ```

examples/ltdc-screen/main.rs

@@ -13,6 +13,7 @@ use embedded_graphics::{
     text::Text,
 };
 
+use static_cell::ConstStaticCell;
 use stm32f4xx_hal::{
     ltdc::{BluePins, GreenPins, Layer, LtdcPins, PixelFormat, RedPins},
     pac,
@@ -28,7 +29,8 @@ const HEIGHT: u16 = 272;
 
 // Graphics framebuffer
 const FB_GRAPHICS_SIZE: usize = (WIDTH as usize) * (HEIGHT as usize);
-static mut FB_LAYER1: [u16; FB_GRAPHICS_SIZE] = [0; FB_GRAPHICS_SIZE];
+static FB_LAYER1: ConstStaticCell<[u16; FB_GRAPHICS_SIZE]> =
+    ConstStaticCell::new([0; FB_GRAPHICS_SIZE]);
 
 #[entry]
 fn main() -> ! {
@@ -85,7 +87,7 @@ fn main() -> ! {
     let mut display = screen::Stm32F7DiscoDisplay::new(perif.LTDC, perif.DMA2D, pins);
     display
         .controller
-        .config_layer(Layer::L1, unsafe { &mut FB_LAYER1 }, PixelFormat::RGB565);
+        .config_layer(Layer::L1, FB_LAYER1.take(), PixelFormat::RGB565);
 
     display.controller.enable_layer(Layer::L1);
     display.controller.reload();

examples/qspi-w25q.rs

@@ -18,6 +18,7 @@ pub struct W25Q<PINS: QspiPins> {
     qspi: Qspi<PINS>,
 }
 
+#[allow(unused)]
 pub struct DeviceId(u8);
 
 impl<PINS> W25Q<PINS>

examples/rtic-dual-i2s-audio-in-out.rs

@@ -121,10 +121,10 @@ mod app {
     #[local]
     struct Local {
         logs_chan: rtt_target::UpChannel,
-        adc_p: Producer<'static, (i32, i32), 2>,
-        process_c: Consumer<'static, (i32, i32), 2>,
-        process_p: Producer<'static, (i32, i32), 2>,
-        dac_c: Consumer<'static, (i32, i32), 2>,
+        adc_p: Producer<'static, (i32, i32)>,
+        process_c: Consumer<'static, (i32, i32)>,
+        process_p: Producer<'static, (i32, i32)>,
+        dac_c: Consumer<'static, (i32, i32)>,
     }
 
     #[init(local = [queue_1: Queue<(i32,i32), 2> = Queue::new(),queue_2: Queue<(i32,i32), 2> = Queue::new()])]

examples/rtic-i2s-audio-in-out.rs

@@ -124,10 +124,10 @@ mod app {
     #[local]
     struct Local {
         logs_chan: rtt_target::UpChannel,
-        adc_p: Producer<'static, (i32, i32), 2>,
-        process_c: Consumer<'static, (i32, i32), 2>,
-        process_p: Producer<'static, (i32, i32), 2>,
-        dac_c: Consumer<'static, (i32, i32), 2>,
+        adc_p: Producer<'static, (i32, i32)>,
+        process_c: Consumer<'static, (i32, i32)>,
+        process_p: Producer<'static, (i32, i32)>,
+        dac_c: Consumer<'static, (i32, i32)>,
     }
 
     #[init(local = [queue_1: Queue<(i32,i32), 2> = Queue::new(),queue_2: Queue<(i32,i32), 2> = Queue::new()])]

examples/rtic-usb-cdc-echo.rs

@@ -5,6 +5,7 @@ use panic_halt as _;
 
 #[rtic::app(device = stm32f4xx_hal::pac, peripherals = true, dispatchers = [USART1])]
 mod app {
+    use static_cell::{ConstStaticCell, StaticCell};
     use stm32f4xx_hal::{
         gpio::{Output, PC13},
         otg_fs::{UsbBus, UsbBusType, USB},
@@ -33,8 +34,9 @@ mod app {
 
     #[init]
     fn init(ctx: init::Context) -> (Shared, Local, init::Monotonics) {
-        static mut EP_MEMORY: [u32; 1024] = [0; 1024];
-        static mut USB_BUS: Option<usb_device::bus::UsbBusAllocator<UsbBusType>> = None;
+        static EP_MEMORY: ConstStaticCell<[u32; 1024]> = ConstStaticCell::new([0; 1024]);
+        static USB_BUS: StaticCell<usb_device::bus::UsbBusAllocator<UsbBusType>> =
+            StaticCell::new();
 
         let dp = ctx.device;
 
@@ -59,22 +61,17 @@ mod app {
             pin_dp: gpioa.pa12.into(),
             hclk: rcc.clocks.hclk(),
         };
-        unsafe {
-            USB_BUS.replace(UsbBus::new(usb, &mut EP_MEMORY));
-        }
-
-        let usb_serial = usbd_serial::SerialPort::new(unsafe { USB_BUS.as_ref().unwrap() });
-        let usb_dev = UsbDeviceBuilder::new(
-            unsafe { USB_BUS.as_ref().unwrap() },
-            UsbVidPid(0x16c0, 0x27dd),
-        )
-        .device_class(usbd_serial::USB_CLASS_CDC)
-        .strings(&[StringDescriptors::default()
-            .manufacturer("Fake Company")
-            .product("Product")
-            .serial_number("TEST")])
-        .unwrap()
-        .build();
+        let usb_bus = USB_BUS.init(UsbBus::new(usb, EP_MEMORY.take()));
+
+        let usb_serial = usbd_serial::SerialPort::new(usb_bus);
+        let usb_dev = UsbDeviceBuilder::new(usb_bus, UsbVidPid(0x16c0, 0x27dd))
+            .device_class(usbd_serial::USB_CLASS_CDC)
+            .strings(&[StringDescriptors::default()
+                .manufacturer("Fake Company")
+                .product("Product")
+                .serial_number("TEST")])
+            .unwrap()
+            .build();
 
         (
             Shared {

examples/spi-dma.rs

@@ -9,6 +9,7 @@ use core::cell::RefCell;
 use cortex_m::interrupt::Mutex;
 use cortex_m_rt::entry;
 use embedded_hal_02::spi::{Mode, Phase, Polarity};
+use static_cell::ConstStaticCell;
 use stm32f4xx_hal::pac::interrupt;
 use stm32f4xx_hal::{
     dma::{config, MemoryToPeripheral, Stream4, StreamsTuple, Transfer},
@@ -105,12 +106,11 @@ fn DMA1_STREAM4() {
     // Its important to clear fifo errors as the transfer is paused until it is cleared
     transfer.clear_flags(DmaFlag::FifoError | DmaFlag::TransferComplete);
     if flags.is_transfer_complete() {
-        unsafe {
-            static mut BUFFER: [u8; ARRAY_SIZE] = [0; ARRAY_SIZE];
-            for (i, b) in BUFFER.iter_mut().enumerate() {
-                *b = (i + 1) as u8;
-            }
-            transfer.next_transfer(&mut BUFFER).unwrap();
+        static BUFFER: ConstStaticCell<[u8; ARRAY_SIZE]> = ConstStaticCell::new([0; ARRAY_SIZE]);
+        let buffer = BUFFER.take();
+        for (i, b) in buffer.iter_mut().enumerate() {
+            *b = (i + 1) as u8;
         }
+        transfer.next_transfer(buffer).unwrap();
     }
 }

examples/uart-dma.rs

@@ -8,6 +8,7 @@ use stm32f4xx_hal::dma::{DmaFlag, PeripheralToMemory, Stream1};
 use core::cell::RefCell;
 use cortex_m::interrupt::Mutex;
 use cortex_m_rt::entry;
+use static_cell::ConstStaticCell;
 use stm32f4xx_hal::dma::config::DmaConfig;
 use stm32f4xx_hal::pac::Interrupt;
 use stm32f4xx_hal::pac::{interrupt, DMA1};
@@ -74,7 +75,8 @@ pub static G_UART3_TX: Mutex<RefCell<Option<serial::Tx<pac::USART3>>>> =
     Mutex::new(RefCell::new(None));
 
 // dma buffer
-pub static mut RX_UART3_BUFFER: [u8; UART_BUFFER_SIZE] = [0; UART_BUFFER_SIZE];
+pub static RX_UART3_BUFFER: ConstStaticCell<[u8; UART_BUFFER_SIZE]> =
+    ConstStaticCell::new([0; UART_BUFFER_SIZE]);
 
 // a wrapper function that reads out of the uart ring buffer
 pub fn uart3_read_until(eol: u8) -> Option<[u8; UART_BUFFER_SIZE]> {
@@ -208,16 +210,14 @@ fn USART3() {
             if transfer.is_idle() {
                 // Calc received bytes count
                 let bytes_count = UART_BUFFER_SIZE - transfer.number_of_transfers() as usize;
-                unsafe {
-                    let mut buffer = [0; UART_BUFFER_SIZE];
-                    match transfer.next_transfer(&mut RX_UART3_BUFFER) {
-                        Ok((b, _)) => buffer = *b,
-                        Err(_err) => {}
-                    }
-                    if let Some(ring_buffer) = G_UART3_BUFFER.borrow(cs).borrow_mut().as_mut() {
-                        for i in 0..bytes_count {
-                            ring_buffer.push(buffer[i]);
-                        }
+                let mut buffer = [0; UART_BUFFER_SIZE];
+                match transfer.next_transfer(RX_UART3_BUFFER.take()) {
+                    Ok((b, _)) => buffer = *b,
+                    Err(_err) => {}
+                }
+                if let Some(ring_buffer) = G_UART3_BUFFER.borrow(cs).borrow_mut().as_mut() {
+                    for i in 0..bytes_count {
+                        ring_buffer.push(buffer[i]);
                     }
                 }
             }

examples/usb-serial-poll.rs

@@ -6,12 +6,14 @@
 use panic_halt as _;
 
 use cortex_m_rt::entry;
+use static_cell::ConstStaticCell;
 use stm32f4xx_hal::otg_fs::{UsbBus, USB};
 use stm32f4xx_hal::rcc::Config;
 use stm32f4xx_hal::{pac, prelude::*};
 use usb_device::prelude::*;
 
-static mut EP_MEMORY: [u32; 1024] = [0; 1024];
+// Statically allocate memory for a `u32`.
+static EP_MEMORY: ConstStaticCell<[u32; 1024]> = ConstStaticCell::new([0; 1024]);
 
 #[entry]
 fn main() -> ! {
@@ -29,7 +31,7 @@ fn main() -> ! {
         &rcc.clocks,
     );
 
-    let usb_bus = UsbBus::new(usb, unsafe { &mut EP_MEMORY });
+    let usb_bus = UsbBus::new(usb, EP_MEMORY.take());
 
     let mut serial = usbd_serial::SerialPort::new(&usb_bus);
 

examples/ws2812-spi.rs

@@ -10,7 +10,7 @@ use hal::{
     pac::{self, SPI1},
     prelude::*,
 };
-use smart_leds::{brightness, hsv::RGB8, SmartLedsWrite};
+use smart_leds::{brightness, SmartLedsWrite, RGB8};
 use ws2812_spi as ws2812;
 
 #[entry]