From a65c2bc2b43d82d5c0b5c192d68ef10f63901750 Mon Sep 17 00:00:00 2001 From: VasanthakumarV Date: Sat, 11 Dec 2021 21:51:14 +0530 Subject: [PATCH] [examples] Add examples for STM32F3 --- examples/stm32f3/.cargo/config.toml | 6 ++++ examples/stm32f3/Cargo.toml | 22 +++++++++++++ examples/stm32f3/build.rs | 5 +++ examples/stm32f3/src/bin/blinky.rs | 30 ++++++++++++++++++ examples/stm32f3/src/bin/button.rs | 33 ++++++++++++++++++++ examples/stm32f3/src/bin/button_exti.rs | 29 +++++++++++++++++ examples/stm32f3/src/bin/hello.rs | 28 +++++++++++++++++ examples/stm32f3/src/bin/spi_dma.rs | 41 +++++++++++++++++++++++++ examples/stm32f3/src/bin/usart_dma.rs | 30 ++++++++++++++++++ examples/stm32f3/src/example_common.rs | 19 ++++++++++++ 10 files changed, 243 insertions(+) create mode 100644 examples/stm32f3/.cargo/config.toml create mode 100644 examples/stm32f3/Cargo.toml create mode 100644 examples/stm32f3/build.rs create mode 100644 examples/stm32f3/src/bin/blinky.rs create mode 100644 examples/stm32f3/src/bin/button.rs create mode 100644 examples/stm32f3/src/bin/button_exti.rs create mode 100644 examples/stm32f3/src/bin/hello.rs create mode 100644 examples/stm32f3/src/bin/spi_dma.rs create mode 100644 examples/stm32f3/src/bin/usart_dma.rs create mode 100644 examples/stm32f3/src/example_common.rs diff --git a/examples/stm32f3/.cargo/config.toml b/examples/stm32f3/.cargo/config.toml new file mode 100644 index 000000000..eb8a8b335 --- /dev/null +++ b/examples/stm32f3/.cargo/config.toml @@ -0,0 +1,6 @@ +[target.'cfg(all(target_arch = "arm", target_os = "none"))'] +# replace STM32F429ZITx with your chip as listed in `probe-run --list-chips` +runner = "probe-run --chip STM32F303VCTx" + +[build] +target = "thumbv7em-none-eabihf" diff --git a/examples/stm32f3/Cargo.toml b/examples/stm32f3/Cargo.toml new file mode 100644 index 000000000..cd9cd3a8f --- /dev/null +++ b/examples/stm32f3/Cargo.toml @@ -0,0 +1,22 @@ +[package] +authors = ["Dario Nieuwenhuis "] +edition = "2018" +name = "embassy-stm32f3-examples" +version = "0.1.0" +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-tim2"] } + +defmt = "0.3" +defmt-rtt = "0.3" + +cortex-m = "0.7.3" +cortex-m-rt = "0.7.0" +embedded-hal = "0.2.6" +panic-probe = { version = "0.3", features = ["print-defmt"] } +futures = { version = "0.3.17", default-features = false, features = ["async-await"] } +heapless = { version = "0.7.5", default-features = false } +nb = "1.0.0" diff --git a/examples/stm32f3/build.rs b/examples/stm32f3/build.rs new file mode 100644 index 000000000..8cd32d7ed --- /dev/null +++ b/examples/stm32f3/build.rs @@ -0,0 +1,5 @@ +fn main() { + println!("cargo:rustc-link-arg-bins=--nmagic"); + println!("cargo:rustc-link-arg-bins=-Tlink.x"); + println!("cargo:rustc-link-arg-bins=-Tdefmt.x"); +} diff --git a/examples/stm32f3/src/bin/blinky.rs b/examples/stm32f3/src/bin/blinky.rs new file mode 100644 index 000000000..321643557 --- /dev/null +++ b/examples/stm32f3/src/bin/blinky.rs @@ -0,0 +1,30 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +#[path = "../example_common.rs"] +mod example_common; + +use embassy::executor::Spawner; +use embassy::time::{Duration, Timer}; +use embassy_stm32::gpio::{Level, Output, Speed}; +use embassy_stm32::Peripherals; +use embedded_hal::digital::v2::OutputPin; +use example_common::*; + +#[embassy::main] +async fn main(_spawner: Spawner, p: Peripherals) { + info!("Hello World!"); + + let mut led = Output::new(p.PE12, Level::High, Speed::Low); + + loop { + info!("high"); + unwrap!(led.set_high()); + Timer::after(Duration::from_millis(1000)).await; + + info!("low"); + unwrap!(led.set_low()); + Timer::after(Duration::from_millis(1000)).await; + } +} diff --git a/examples/stm32f3/src/bin/button.rs b/examples/stm32f3/src/bin/button.rs new file mode 100644 index 000000000..c5fab138b --- /dev/null +++ b/examples/stm32f3/src/bin/button.rs @@ -0,0 +1,33 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +#[path = "../example_common.rs"] +mod example_common; +use cortex_m_rt::entry; +use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed}; +use embedded_hal::digital::v2::{InputPin, OutputPin}; +use example_common::*; + +#[entry] +fn main() -> ! { + info!("Hello World!"); + + let p = embassy_stm32::init(Default::default()); + + let button = Input::new(p.PA0, Pull::Down); + let mut led1 = Output::new(p.PE9, Level::High, Speed::Low); + let mut led2 = Output::new(p.PE15, Level::High, Speed::Low); + + loop { + if unwrap!(button.is_high()) { + info!("high"); + unwrap!(led1.set_high()); + unwrap!(led2.set_low()); + } else { + info!("low"); + unwrap!(led1.set_low()); + unwrap!(led2.set_high()); + } + } +} diff --git a/examples/stm32f3/src/bin/button_exti.rs b/examples/stm32f3/src/bin/button_exti.rs new file mode 100644 index 000000000..d45e4365b --- /dev/null +++ b/examples/stm32f3/src/bin/button_exti.rs @@ -0,0 +1,29 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +#[path = "../example_common.rs"] +mod example_common; +use embassy::executor::Spawner; +use embassy_stm32::exti::ExtiInput; +use embassy_stm32::gpio::{Input, Pull}; +use embassy_stm32::Peripherals; +use embassy_traits::gpio::{WaitForFallingEdge, WaitForRisingEdge}; +use example_common::*; + +#[embassy::main] +async fn main(_spawner: Spawner, p: Peripherals) { + info!("Hello World!"); + + let button = Input::new(p.PA0, Pull::Down); + let mut button = ExtiInput::new(button, p.EXTI0); + + info!("Press the USER button..."); + + loop { + button.wait_for_rising_edge().await; + info!("Pressed!"); + button.wait_for_falling_edge().await; + info!("Released!"); + } +} diff --git a/examples/stm32f3/src/bin/hello.rs b/examples/stm32f3/src/bin/hello.rs new file mode 100644 index 000000000..9a67419fb --- /dev/null +++ b/examples/stm32f3/src/bin/hello.rs @@ -0,0 +1,28 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +use defmt::info; +use embassy::executor::Spawner; +use embassy::time::{Duration, Timer}; +use embassy_stm32::time::Hertz; +use embassy_stm32::Config; +use embassy_stm32::Peripherals; + +#[path = "../example_common.rs"] +mod example_common; + +fn config() -> Config { + let mut config = Config::default(); + config.rcc.hse = Some(Hertz(8_000_000)); + config.rcc.sysclk = Some(Hertz(16_000_000)); + config +} + +#[embassy::main(config = "config()")] +async fn main(_spawner: Spawner, _p: Peripherals) -> ! { + loop { + info!("Hello World!"); + Timer::after(Duration::from_secs(1)).await; + } +} diff --git a/examples/stm32f3/src/bin/spi_dma.rs b/examples/stm32f3/src/bin/spi_dma.rs new file mode 100644 index 000000000..a87a36f73 --- /dev/null +++ b/examples/stm32f3/src/bin/spi_dma.rs @@ -0,0 +1,41 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +#[path = "../example_common.rs"] +mod example_common; +use core::fmt::Write; +use core::str::from_utf8; +use embassy::executor::Spawner; +use embassy_stm32::spi::{Config, Spi}; +use embassy_stm32::time::Hertz; +use embassy_stm32::Peripherals; +use embassy_traits::spi::FullDuplex; +use example_common::*; +use heapless::String; + +#[embassy::main] +async fn main(_spawner: Spawner, p: Peripherals) { + info!("Hello World!"); + + let mut spi = Spi::new( + p.SPI1, + p.PB3, + p.PB5, + p.PB4, + p.DMA1_CH3, + p.DMA1_CH2, + Hertz(1_000_000), + Config::default(), + ); + + for n in 0u32.. { + let mut write: String<128> = String::new(); + let mut read = [0; 128]; + core::write!(&mut write, "Hello DMA World {}!\r\n", n).unwrap(); + spi.read_write(&mut read[0..write.len()], write.as_bytes()) + .await + .ok(); + info!("read via spi+dma: {}", from_utf8(&read).unwrap()); + } +} diff --git a/examples/stm32f3/src/bin/usart_dma.rs b/examples/stm32f3/src/bin/usart_dma.rs new file mode 100644 index 000000000..99530b5c0 --- /dev/null +++ b/examples/stm32f3/src/bin/usart_dma.rs @@ -0,0 +1,30 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +#[path = "../example_common.rs"] +mod example_common; +use core::fmt::Write; +use embassy::executor::Spawner; +use embassy_stm32::dma::NoDma; +use embassy_stm32::usart::{Config, Uart}; +use embassy_stm32::Peripherals; +use embassy_traits::uart::Write as _; +use example_common::*; +use heapless::String; + +#[embassy::main] +async fn main(_spawner: Spawner, p: Peripherals) { + info!("Hello World!"); + + let config = Config::default(); + let mut usart = Uart::new(p.USART1, p.PE1, p.PE0, p.DMA1_CH4, NoDma, config); + + for n in 0u32.. { + let mut s: String<128> = String::new(); + core::write!(&mut s, "Hello DMA World {}!\r\n", n).unwrap(); + + unwrap!(usart.write(s.as_bytes()).await); + info!("wrote DMA"); + } +} diff --git a/examples/stm32f3/src/example_common.rs b/examples/stm32f3/src/example_common.rs new file mode 100644 index 000000000..e14517033 --- /dev/null +++ b/examples/stm32f3/src/example_common.rs @@ -0,0 +1,19 @@ +#![macro_use] + +use defmt_rtt as _; // global logger +use panic_probe as _; + +pub use defmt::*; + +use core::sync::atomic::{AtomicUsize, Ordering}; + +defmt::timestamp! { + "{=u64}", + { + static COUNT: AtomicUsize = AtomicUsize::new(0); + // NOTE(no-CAS) `timestamps` runs with interrupts disabled + let n = COUNT.load(Ordering::Relaxed); + COUNT.store(n + 1, Ordering::Relaxed); + n as u64 + } +}