From f498c689e7c3a2314c7a80bf14fc2cb491528aa4 Mon Sep 17 00:00:00 2001 From: Dario Nieuwenhuis Date: Thu, 8 Jun 2023 16:40:02 +0200 Subject: [PATCH] Add RTIC example. --- ci.sh | 1 + examples/nrf52840-rtic/.cargo/config.toml | 9 +++++ examples/nrf52840-rtic/Cargo.toml | 21 +++++++++++ examples/nrf52840-rtic/build.rs | 35 ++++++++++++++++++ examples/nrf52840-rtic/memory.x | 7 ++++ examples/nrf52840-rtic/src/bin/blinky.rs | 43 +++++++++++++++++++++++ 6 files changed, 116 insertions(+) create mode 100644 examples/nrf52840-rtic/.cargo/config.toml create mode 100644 examples/nrf52840-rtic/Cargo.toml create mode 100644 examples/nrf52840-rtic/build.rs create mode 100644 examples/nrf52840-rtic/memory.x create mode 100644 examples/nrf52840-rtic/src/bin/blinky.rs diff --git a/ci.sh b/ci.sh index 08558a18..da2414d6 100755 --- a/ci.sh +++ b/ci.sh @@ -104,6 +104,7 @@ cargo batch \ --- build --release --manifest-path docs/modules/ROOT/examples/layer-by-layer/blinky-irq/Cargo.toml --target thumbv7em-none-eabi \ --- build --release --manifest-path docs/modules/ROOT/examples/layer-by-layer/blinky-async/Cargo.toml --target thumbv7em-none-eabi \ --- build --release --manifest-path examples/nrf52840/Cargo.toml --target thumbv7em-none-eabi --out-dir out/examples/nrf52840 \ + --- build --release --manifest-path examples/nrf52840-rtic/Cargo.toml --target thumbv7em-none-eabi --out-dir out/examples/nrf52840-rtic \ --- build --release --manifest-path examples/nrf5340/Cargo.toml --target thumbv8m.main-none-eabihf --out-dir out/examples/nrf5340 \ --- build --release --manifest-path examples/rp/Cargo.toml --target thumbv6m-none-eabi --out-dir out/examples/rp \ --- build --release --manifest-path examples/stm32f0/Cargo.toml --target thumbv6m-none-eabi --out-dir out/examples/stm32f0 \ diff --git a/examples/nrf52840-rtic/.cargo/config.toml b/examples/nrf52840-rtic/.cargo/config.toml new file mode 100644 index 00000000..3872e718 --- /dev/null +++ b/examples/nrf52840-rtic/.cargo/config.toml @@ -0,0 +1,9 @@ +[target.'cfg(all(target_arch = "arm", target_os = "none"))'] +# replace nRF82840_xxAA with your chip as listed in `probe-rs-cli chip list` +runner = "probe-rs-cli run --chip nRF52840_xxAA" + +[build] +target = "thumbv7em-none-eabi" + +[env] +DEFMT_LOG = "trace" diff --git a/examples/nrf52840-rtic/Cargo.toml b/examples/nrf52840-rtic/Cargo.toml new file mode 100644 index 00000000..0f9048b0 --- /dev/null +++ b/examples/nrf52840-rtic/Cargo.toml @@ -0,0 +1,21 @@ +[package] +edition = "2021" +name = "embassy-nrf52840-rtic-examples" +version = "0.1.0" +license = "MIT OR Apache-2.0" + +[dependencies] +rtic = { version = "2", features = ["thumbv7-backend"] } + +embassy-futures = { version = "0.1.0", path = "../../embassy-futures" } +embassy-sync = { version = "0.2.0", path = "../../embassy-sync", features = ["defmt"] } +embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["nightly", "unstable-traits", "defmt", "defmt-timestamp-uptime", "generic-queue"] } +embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["nightly", "unstable-traits", "defmt", "nrf52840", "time-driver-rtc1", "gpiote", "unstable-pac", "time"] } + +defmt = "0.3" +defmt-rtt = "0.4" + +cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] } +cortex-m-rt = "0.7.0" +panic-probe = { version = "0.3", features = ["print-defmt"] } +futures = { version = "0.3.17", default-features = false, features = ["async-await"] } diff --git a/examples/nrf52840-rtic/build.rs b/examples/nrf52840-rtic/build.rs new file mode 100644 index 00000000..30691aa9 --- /dev/null +++ b/examples/nrf52840-rtic/build.rs @@ -0,0 +1,35 @@ +//! This build script copies the `memory.x` file from the crate root into +//! a directory where the linker can always find it at build time. +//! For many projects this is optional, as the linker always searches the +//! project root directory -- wherever `Cargo.toml` is. However, if you +//! are using a workspace or have a more complicated build setup, this +//! build script becomes required. Additionally, by requesting that +//! Cargo re-run the build script whenever `memory.x` is changed, +//! updating `memory.x` ensures a rebuild of the application with the +//! new memory settings. + +use std::env; +use std::fs::File; +use std::io::Write; +use std::path::PathBuf; + +fn main() { + // Put `memory.x` in our output directory and ensure it's + // on the linker search path. + let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap()); + File::create(out.join("memory.x")) + .unwrap() + .write_all(include_bytes!("memory.x")) + .unwrap(); + println!("cargo:rustc-link-search={}", out.display()); + + // By default, Cargo will re-run a build script whenever + // any file in the project changes. By specifying `memory.x` + // here, we ensure the build script is only re-run when + // `memory.x` is changed. + println!("cargo:rerun-if-changed=memory.x"); + + 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/nrf52840-rtic/memory.x b/examples/nrf52840-rtic/memory.x new file mode 100644 index 00000000..9b04edec --- /dev/null +++ b/examples/nrf52840-rtic/memory.x @@ -0,0 +1,7 @@ +MEMORY +{ + /* NOTE 1 K = 1 KiBi = 1024 bytes */ + /* These values correspond to the NRF52840 with Softdevices S140 7.0.1 */ + FLASH : ORIGIN = 0x00000000, LENGTH = 1024K + RAM : ORIGIN = 0x20000000, LENGTH = 256K +} diff --git a/examples/nrf52840-rtic/src/bin/blinky.rs b/examples/nrf52840-rtic/src/bin/blinky.rs new file mode 100644 index 00000000..a682c193 --- /dev/null +++ b/examples/nrf52840-rtic/src/bin/blinky.rs @@ -0,0 +1,43 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +use {defmt_rtt as _, panic_probe as _}; + +#[rtic::app(device = embassy_nrf, peripherals = false, dispatchers = [SWI0_EGU0, SWI1_EGU1])] +mod app { + use defmt::info; + use embassy_nrf::gpio::{Level, Output, OutputDrive}; + use embassy_nrf::peripherals; + use embassy_time::{Duration, Timer}; + + #[shared] + struct Shared {} + + #[local] + struct Local {} + + #[init] + fn init(_: init::Context) -> (Shared, Local) { + info!("Hello World!"); + + let p = embassy_nrf::init(Default::default()); + blink::spawn(p.P0_13).map_err(|_| ()).unwrap(); + + (Shared {}, Local {}) + } + + #[task(priority = 1)] + async fn blink(_cx: blink::Context, pin: peripherals::P0_13) { + let mut led = Output::new(pin, Level::Low, OutputDrive::Standard); + + loop { + info!("off!"); + led.set_high(); + Timer::after(Duration::from_millis(300)).await; + info!("on!"); + led.set_low(); + Timer::after(Duration::from_millis(300)).await; + } + } +}