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traits: migrate Delay to embedded-hal 1.0+async, remove Rng and Flash.

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This commit is contained in:
Dario Nieuwenhuis 2022-01-27 00:08:02 +01:00
parent d76cd5ceaf
commit 0719b05d63
32 changed files with 145 additions and 304 deletions
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9
README.md
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@ -2,15 +2,6 @@
Embassy is a project to make async/await a first-class option for embedded development. For more information and instructions to get started, go to [https://embassy.dev](https://embassy.dev).
## Traits and types
`embassy` provides a set of traits and types specifically designed for `async` usage.
- `embassy::io`: `AsyncBufRead`, `AsyncWrite`. Traits for byte-stream IO, essentially `no_std` compatible versions of `futures::io`.
- `embassy::traits::flash`: Flash device trait.
- `embassy::time`: `Clock` and `Alarm` traits. Std-like `Duration` and `Instant`.
- More traits for SPI, I2C, UART async HAL coming soon.
## Executor
The `embassy::executor` module provides an async/await executor designed for embedded usage.

1
docs/modules/ROOT/pages/traits.adoc
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@ -3,7 +3,6 @@
Embassy provides a set of traits and types specifically designed for `async` usage. Many of these futures will be upstreamed to the `embedded-hal` crate at some point in the future, probably when the required GAT (Generic Associated Types) feature is stabilized in Rust.
* `embassy::io`: `AsyncBufRead`, `AsyncWrite`. Traits for byte-stream IO, essentially `no_std` compatible versions of `futures::io`. The primary reason for re-defining these traits is that the `futures::io` variant requires `std::io::Error`, which does not work in the `no_std` environment.
* `embassy::traits`: Async traits for Flash, SPI, I2C, UART, RNG, GPIO and more.
* `embassy::time`: Time `Driver` trait that is implemented for different platforms. Time in Embassy is represented using the `Duration` and `Instant` types.
These traits are implemented by the platform-specific crates, such as `embassy-nrf` or `embassy-stm32`.

2
embassy-nrf/Cargo.toml
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@ -50,7 +50,7 @@ embassy = { version = "0.1.0", path = "../embassy" }
embassy-macros = { version = "0.1.0", path = "../embassy-macros", features = ["nrf"]}
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common" }
embedded-hal-02 = { package = "embedded-hal", version = "0.2.6" }
embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["unproven"] }
embedded-hal-1 = { package = "embedded-hal", version = "1.0.0-alpha.6", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy", optional = true}
embedded-hal-async = { version = "0.0.1", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy", optional = true}

2
embassy-stm32/Cargo.toml
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@ -11,7 +11,7 @@ embassy-macros = { version = "0.1.0", path = "../embassy-macros", features = ["s
embassy-hal-common = {version = "0.1.0", path = "../embassy-hal-common" }
embassy-net = { version = "0.1.0", path = "../embassy-net", default-features = false, optional = true }
embedded-hal-02 = { package = "embedded-hal", version = "0.2.6" }
embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["unproven"] }
embedded-hal-1 = { package = "embedded-hal", version = "1.0.0-alpha.6", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy", optional = true}
embedded-hal-async = { version = "0.0.1", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy", optional = true}

90
embassy-stm32/src/rng.rs
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@ -1,8 +1,6 @@
#![macro_use]
use core::future::Future;
use core::task::Poll;
use embassy::traits;
use embassy::util::Unborrow;
use embassy::waitqueue::AtomicWaker;
use embassy_hal_common::unborrow;
@ -48,6 +46,46 @@ impl<T: Instance> Rng<T> {
// Reference manual says to discard the first.
let _ = self.next_u32();
}
pub async fn async_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
unsafe {
T::regs().cr().modify(|reg| {
reg.set_rngen(true);
})
}
for chunk in dest.chunks_mut(4) {
poll_fn(|cx| {
RNG_WAKER.register(cx.waker());
unsafe {
T::regs().cr().modify(|reg| {
reg.set_ie(true);
});
}
let bits = unsafe { T::regs().sr().read() };
if bits.drdy() {
Poll::Ready(Ok(()))
} else if bits.seis() {
self.reset();
Poll::Ready(Err(Error::SeedError))
} else if bits.ceis() {
self.reset();
Poll::Ready(Err(Error::ClockError))
} else {
Poll::Pending
}
})
.await?;
let random_bytes = unsafe { T::regs().dr().read() }.to_be_bytes();
for (dest, src) in chunk.iter_mut().zip(random_bytes.iter()) {
*dest = *src
}
}
Ok(())
}
}
impl<T: Instance> RngCore for Rng<T> {
@ -83,54 +121,6 @@ impl<T: Instance> RngCore for Rng<T> {
impl<T: Instance> CryptoRng for Rng<T> {}
impl<T: Instance> traits::rng::Rng for Rng<T> {
type Error = Error;
type RngFuture<'a>
where
Self: 'a,
= impl Future<Output = Result<(), Self::Error>> + 'a;
fn fill_bytes<'a>(&'a mut self, dest: &'a mut [u8]) -> Self::RngFuture<'a> {
unsafe {
T::regs().cr().modify(|reg| {
reg.set_rngen(true);
});
}
async move {
for chunk in dest.chunks_mut(4) {
poll_fn(|cx| {
RNG_WAKER.register(cx.waker());
unsafe {
T::regs().cr().modify(|reg| {
reg.set_ie(true);
});
}
let bits = unsafe { T::regs().sr().read() };
if bits.drdy() {
Poll::Ready(Ok(()))
} else if bits.seis() {
self.reset();
Poll::Ready(Err(Error::SeedError))
} else if bits.ceis() {
self.reset();
Poll::Ready(Err(Error::ClockError))
} else {
Poll::Pending
}
})
.await?;
let random_bytes = unsafe { T::regs().dr().read() }.to_be_bytes();
for (dest, src) in chunk.iter_mut().zip(random_bytes.iter()) {
*dest = *src
}
}
Ok(())
}
}
}
pub(crate) mod sealed {
use super::*;

1
embassy-traits/Cargo.toml
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@ -8,7 +8,6 @@ edition = "2018"
std = []
[dependencies]
defmt = { version = "0.3", optional = true }
embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["unproven"] }
embedded-hal-1 = { package = "embedded-hal", version = "1.0.0-alpha.6", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy" }
embedded-hal-async = { version = "0.0.1", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy"}

13
embassy-traits/src/delay.rs
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@ -1,13 +0,0 @@
use core::future::Future;
pub trait Delay {
type DelayFuture<'a>: Future<Output = ()> + 'a
where
Self: 'a;
/// Future that completes after now + millis
fn delay_ms(&mut self, millis: u64) -> Self::DelayFuture<'_>;
/// Future that completes after now + micros
fn delay_us(&mut self, micros: u64) -> Self::DelayFuture<'_>;
}

57
embassy-traits/src/flash.rs
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@ -1,57 +0,0 @@
use core::future::Future;
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
#[non_exhaustive]
pub enum Error {
Failed,
AddressMisaligned,
BufferMisaligned,
}
pub trait Flash {
type ReadFuture<'a>: Future<Output = Result<(), Error>>
where
Self: 'a;
type WriteFuture<'a>: Future<Output = Result<(), Error>>
where
Self: 'a;
type ErasePageFuture<'a>: Future<Output = Result<(), Error>>
where
Self: 'a;
/// Reads data from the flash device.
///
/// address must be a multiple of self.read_size().
/// buf.len() must be a multiple of self.read_size().
fn read<'a>(&'a mut self, address: usize, buf: &'a mut [u8]) -> Self::ReadFuture<'a>;
/// Writes data to the flash device.
///
/// address must be a multiple of self.write_size().
/// buf.len() must be a multiple of self.write_size().
fn write<'a>(&'a mut self, address: usize, buf: &'a [u8]) -> Self::WriteFuture<'a>;
/// Erases a single page from the flash device.
///
/// address must be a multiple of self.erase_size().
fn erase(&mut self, address: usize) -> Self::ErasePageFuture<'_>;
/// Returns the total size, in bytes.
/// This is not guaranteed to be a power of 2.
fn size(&self) -> usize;
/// Returns the read size in bytes.
/// This is guaranteed to be a power of 2.
fn read_size(&self) -> usize;
/// Returns the write size in bytes.
/// This is guaranteed to be a power of 2.
fn write_size(&self) -> usize;
/// Returns the erase size in bytes.
/// This is guaranteed to be a power of 2.
fn erase_size(&self) -> usize;
}

3
embassy-traits/src/lib.rs
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@ -3,6 +3,3 @@
#![feature(type_alias_impl_trait)]
pub mod adapter;
pub mod delay;
pub mod flash;
pub mod rng;

75
embassy-traits/src/rng.rs
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@ -1,75 +0,0 @@
use core::future::Future;
/// Random-number Generator
pub trait Rng {
type Error;
type RngFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a
where
Self: 'a;
/// Completely fill the provided buffer with random bytes.
///
/// May result in delays if entropy is exhausted prior to completely
/// filling the buffer. Upon completion, the buffer will be completely
/// filled or an error will have been reported.
fn fill_bytes<'a>(&'a mut self, dest: &'a mut [u8]) -> Self::RngFuture<'a>;
}
pub struct Random<T: Rng> {
rng: T,
}
impl<T: Rng> Random<T> {
pub fn new(rng: T) -> Self {
Self { rng }
}
pub async fn next_u8(&mut self, range: u8) -> Result<u8, T::Error> {
// Lemire's method
let t = (-(range as i8) % (range as i8)) as u8;
loop {
let mut buf = [0; 1];
self.rng.fill_bytes(&mut buf).await?;
let x = u8::from_le_bytes(buf);
let m = x as u16 * range as u16;
let l = m as u8;
if l < t {
continue;
}
return Ok((m >> 8) as u8);
}
}
pub async fn next_u16(&mut self, range: u16) -> Result<u16, T::Error> {
// Lemire's method
let t = (-(range as i16) % (range as i16)) as u16;
loop {
let mut buf = [0; 2];
self.rng.fill_bytes(&mut buf).await?;
let x = u16::from_le_bytes(buf);
let m = x as u32 * range as u32;
let l = m as u16;
if l < t {
continue;
}
return Ok((m >> 16) as u16);
}
}
pub async fn next_u32(&mut self, range: u32) -> Result<u32, T::Error> {
// Lemire's method
let t = (-(range as i32) % (range as i32)) as u32;
loop {
let mut buf = [0; 4];
self.rng.fill_bytes(&mut buf).await?;
let x = u32::from_le_bytes(buf);
let m = x as u64 * range as u64;
let l = m as u32;
if l < t {
continue;
}
return Ok((m >> 32) as u32);
}
}
}

11
embassy/Cargo.toml
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@ -7,9 +7,12 @@ resolver = "2"
[features]
default = []
std = ["futures/std", "embassy-traits/std", "time", "time-tick-1mhz", "embassy-macros/std"]
std = ["futures/std", "time", "time-tick-1mhz", "embassy-macros/std"]
wasm = ["wasm-bindgen", "js-sys", "embassy-macros/wasm", "wasm-timer", "time", "time-tick-1mhz"]
# Implement embedded-hal 1.0 alpha and embedded-hal-async traits.
unstable-traits = ["embedded-hal-1", "embedded-hal-async"]
# Enable `embassy::time` module.
# NOTE: This feature is only intended to be enabled by crates providing the time driver implementation.
# Enabling it directly without supplying a time driver will fail to link.
@ -29,13 +32,15 @@ executor-agnostic = []
defmt = { version = "0.3", optional = true }
log = { version = "0.4.14", optional = true }
embedded-hal-02 = { package = "embedded-hal", version = "0.2.6" }
embedded-hal-1 = { package = "embedded-hal", version = "1.0.0-alpha.6", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy", optional = true}
embedded-hal-async = { version = "0.0.1", git = "https://github.com/embassy-rs/embedded-hal", branch = "embassy", optional = true}
futures = { version = "0.3.17", default-features = false, features = [ "cfg-target-has-atomic", "unstable" ] }
pin-project = { version = "1.0.8", default-features = false }
embassy-macros = { version = "0.1.0", path = "../embassy-macros"}
embassy-traits = { version = "0.1.0", path = "../embassy-traits"}
atomic-polyfill = "0.1.5"
critical-section = "0.2.5"
embedded-hal = "0.2.6"
heapless = "0.7.5"
cfg-if = "1.0.0"

1
embassy/src/lib.rs
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@ -21,7 +21,6 @@ pub mod time;
pub mod util;
pub use embassy_macros::*;
pub use embassy_traits as traits;
#[doc(hidden)]
/// Implementation details for embassy macros. DO NOT USE.

85
embassy/src/time/delay.rs
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@ -1,6 +1,10 @@
use core::future::Future;
use super::{Duration, Instant};
use super::{Duration, Instant, Timer};
/// Blocks for at least `duration`.
pub fn block_for(duration: Duration) {
let expires_at = Instant::now() + duration;
while Instant::now() < expires_at {}
}
/// Type implementing async delays and blocking `embedded-hal` delays.
///
@ -10,55 +14,86 @@ use super::{Duration, Instant, Timer};
/// active driver.
pub struct Delay;
impl crate::traits::delay::Delay for Delay {
type DelayFuture<'a> = impl Future<Output = ()> + 'a;
#[cfg(feature = "unstable-traits")]
mod eh1 {
use core::future::Future;
use futures::FutureExt;
fn delay_ms(&mut self, millis: u64) -> Self::DelayFuture<'_> {
Timer::after(Duration::from_millis(millis))
use super::*;
use crate::time::Timer;
impl embedded_hal_1::delay::blocking::DelayUs for Delay {
type Error = core::convert::Infallible;
fn delay_us(&mut self, us: u32) -> Result<(), Self::Error> {
Ok(block_for(Duration::from_micros(us as u64)))
}
fn delay_ms(&mut self, ms: u32) -> Result<(), Self::Error> {
Ok(block_for(Duration::from_millis(ms as u64)))
}
}
impl embedded_hal_async::delay::DelayUs for Delay {
type Error = core::convert::Infallible;
type DelayUsFuture<'a>
where
Self: 'a,
= impl Future<Output = Result<(), Self::Error>> + 'a;
fn delay_us(&mut self, micros: u32) -> Self::DelayUsFuture<'_> {
Timer::after(Duration::from_micros(micros as _)).map(Ok)
}
type DelayMsFuture<'a>
where
Self: 'a,
= impl Future<Output = Result<(), Self::Error>> + 'a;
fn delay_ms(&mut self, millis: u32) -> Self::DelayMsFuture<'_> {
Timer::after(Duration::from_millis(millis as _)).map(Ok)
}
fn delay_us(&mut self, micros: u64) -> Self::DelayFuture<'_> {
Timer::after(Duration::from_micros(micros))
}
}
impl embedded_hal::blocking::delay::DelayMs<u8> for Delay {
mod eh02 {
use super::*;
use embedded_hal_02::blocking::delay::{DelayMs, DelayUs};
impl DelayMs<u8> for Delay {
fn delay_ms(&mut self, ms: u8) {
block_for(Duration::from_millis(ms as u64))
}
}
}
impl embedded_hal::blocking::delay::DelayMs<u16> for Delay {
impl DelayMs<u16> for Delay {
fn delay_ms(&mut self, ms: u16) {
block_for(Duration::from_millis(ms as u64))
}
}
}
impl embedded_hal::blocking::delay::DelayMs<u32> for Delay {
impl DelayMs<u32> for Delay {
fn delay_ms(&mut self, ms: u32) {
block_for(Duration::from_millis(ms as u64))
}
}
}
impl embedded_hal::blocking::delay::DelayUs<u8> for Delay {
impl DelayUs<u8> for Delay {
fn delay_us(&mut self, us: u8) {
block_for(Duration::from_micros(us as u64))
}
}
}
impl embedded_hal::blocking::delay::DelayUs<u16> for Delay {
impl DelayUs<u16> for Delay {
fn delay_us(&mut self, us: u16) {
block_for(Duration::from_micros(us as u64))
}
}
}
impl embedded_hal::blocking::delay::DelayUs<u32> for Delay {
impl DelayUs<u32> for Delay {
fn delay_us(&mut self, us: u32) {
block_for(Duration::from_micros(us as u64))
}
}
/// Blocks for at least `duration`.
pub fn block_for(duration: Duration) {
let expires_at = Instant::now() + duration;
while Instant::now() < expires_at {}
}
}

1
examples/nrf/Cargo.toml
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@ -7,7 +7,6 @@ version = "0.1.0"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["defmt", "nrf52840", "time-driver-rtc1", "gpiote"] }
defmt = "0.3"

1
examples/stm32f1/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f103c8", "unstable-pac", "memory-x", "time-driver-any"] }
defmt = "0.3"

5
examples/stm32f1/src/bin/adc.rs
View File

@ -6,10 +6,9 @@
mod example_common;
use embassy::executor::Spawner;
use embassy::time::Delay;
use embassy::time::{Delay, Duration, Timer};
use embassy_stm32::adc::Adc;
use embassy_stm32::Peripherals;
use embassy_traits::delay::Delay as _;
use example_common::*;
#[embassy::main]
@ -24,6 +23,6 @@ async fn main(_spawner: Spawner, p: Peripherals) {
loop {
let v = adc.read(&mut pin);
info!("--> {} - {} mV", v, adc.to_millivolts(v));
Delay.delay_ms(100).await;
Timer::after(Duration::from_millis(100)).await;
}
}

1
examples/stm32f3/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f303vc", "unstable-pac", "memory-x", "time-driver-any", "exti"] }
defmt = "0.3"

3
examples/stm32f4/Cargo.toml
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@ -7,8 +7,7 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt", "unstable-traits"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-any", "exti"] }
defmt = "0.3"

1
examples/stm32f7/Cargo.toml
View File

@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "net", "stm32f767zi", "unstable-pac", "time-driver-any", "exti"] }
embassy-net = { path = "../../embassy-net", default-features = false, features = ["defmt", "tcp", "medium-ethernet", "pool-16"] }

1
examples/stm32g0/Cargo.toml
View File

@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-any", "stm32g071rb", "memory-x", "unstable-pac", "exti"] }
defmt = "0.3"

1
examples/stm32g4/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-any", "stm32g491re", "memory-x", "unstable-pac", "exti"] }
embassy-hal-common = {version = "0.1.0", path = "../../embassy-hal-common" }

1
examples/stm32h7/Cargo.toml
View File

@ -9,7 +9,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32h743zi", "net", "time-driver-any", "exti", "unstable-pac", "unstable-traits"] }
embassy-net = { path = "../../embassy-net", default-features = false, features = ["defmt", "tcp", "medium-ethernet", "pool-16"] }
embassy-hal-common = { path = "../../embassy-hal-common", default-features = false, features = ["defmt"] }

19
examples/stm32h7/src/bin/rng.rs
View File

@ -5,9 +5,6 @@
#[path = "../example_common.rs"]
mod example_common;
use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy::traits::rng::Random;
use embassy_stm32::gpio::{Level, Output, Speed};
use embassy_stm32::rng::Rng;
use embassy_stm32::Peripherals;
use example_common::*;
@ -16,17 +13,9 @@ use example_common::*;
async fn main(_spawner: Spawner, p: Peripherals) {
info!("Hello World!");
let mut led = Output::new(p.PB14, Level::High, Speed::Low);
let mut rng = Rng::new(p.RNG);
let mut rng = Random::new(Rng::new(p.RNG));
loop {
info!("high {}", unwrap!(rng.next_u8(16).await));
led.set_high();
Timer::after(Duration::from_millis(500)).await;
info!("low {}", unwrap!(rng.next_u8(16).await));
led.set_low();
Timer::after(Duration::from_millis(500)).await;
}
let mut buf = [0u8; 16];
unwrap!(rng.async_fill_bytes(&mut buf).await);
info!("random bytes: {:02x}", buf);
}

1
examples/stm32l0/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32l072cz", "time-driver-any", "exti", "unstable-traits", "memory-x"] }
embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["sx127x", "time", "defmt"] }

1
examples/stm32l1/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32l151cb-a", "time-driver-any", "memory-x"] }
defmt = "0.3"

2
examples/stm32l4/Cargo.toml
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@ -9,7 +9,7 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt" ] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits" }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "unstable-pac", "stm32l4s5vi", "time-driver-any", "exti", "unstable-traits"] }
defmt = "0.3"

11
examples/stm32l4/src/bin/rng.rs
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@ -5,8 +5,6 @@
#[path = "../example_common.rs"]
mod example_common;
use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy::traits::rng::Random;
use embassy_stm32::rcc::{ClockSrc, PLLClkDiv, PLLMul, PLLSource, PLLSrcDiv};
use embassy_stm32::rng::Rng;
use embassy_stm32::{Config, Peripherals};
@ -28,10 +26,9 @@ fn config() -> Config {
async fn main(_spawner: Spawner, p: Peripherals) {
info!("Hello World!");
let mut rng = Random::new(Rng::new(p.RNG));
let mut rng = Rng::new(p.RNG);
loop {
info!("random {}", unwrap!(rng.next_u8(16).await));
Timer::after(Duration::from_secs(1)).await;
}
let mut buf = [0u8; 16];
unwrap!(rng.async_fill_bytes(&mut buf).await);
info!("random bytes: {:02x}", buf);
}

2
examples/stm32l4/src/bin/usart_blocking_async.rs
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@ -6,10 +6,10 @@
mod example_common;
use embassy::executor::Spawner;
use embassy::traits::adapter::BlockingAsync;
use embassy_stm32::dma::NoDma;
use embassy_stm32::usart::{Config, Uart};
use embassy_stm32::Peripherals;
use embassy_traits::adapter::BlockingAsync;
use embedded_hal_async::serial::{Read, Write};
use example_common::*;

1
examples/stm32u5/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "unstable-pac", "stm32u585ai", "memory-x" ] }
defmt = "0.3"

1
examples/stm32wb55/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wb55cc", "time-driver-any", "exti"] }
defmt = "0.3"

1
examples/stm32wl55/Cargo.toml
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@ -7,7 +7,6 @@ resolver = "2"
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wl55jc-cm4", "time-driver-any", "memory-x", "subghz", "unstable-pac", "exti"] }
embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["stm32wl", "time"] }

1
tests/stm32/Cargo.toml
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@ -14,7 +14,6 @@ stm32wb55rg = ["embassy-stm32/stm32wb55rg"]
[dependencies]
embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "unstable-pac", "memory-x", "time-driver-tim2"] }
defmt = "0.3.0"