From 5a60fc926f54bda7e8ddced4de9414cb112c14cf Mon Sep 17 00:00:00 2001
From: Andreas Tsouchlos <an.tsouchlos@gmail.com>
Date: Fri, 1 Nov 2024 16:31:14 +0100
Subject: [PATCH] Add embassy-nrf blinky example

---
 .cargo/config.toml |  10 +
 .gitignore         |   9 +-
 Cargo.lock         | 867 +++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml         |  18 +
 build.rs           |  35 ++
 memory.x           |   7 +
 src/main.rs        |  21 ++
 7 files changed, 960 insertions(+), 7 deletions(-)
 create mode 100644 .cargo/config.toml
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 build.rs
 create mode 100644 memory.x
 create mode 100644 src/main.rs

diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..6ac0f74
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,10 @@
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+# replace nRF82810_xxAA with your chip as listed in `probe-rs chip list`
+runner = "probe-rs run --chip nRF52810_xxAA"
+
+[build]
+target = "thumbv7em-none-eabi"
+
+[env]
+DEFMT_LOG = "trace"
+
diff --git a/.gitignore b/.gitignore
index ead248a..7a0ec7f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,3 @@
-# ---> esp-idf
-# gitignore template for esp-idf, the official development framework for ESP32
-# https://github.com/espressif/esp-idf
-
-build/
-sdkconfig
-sdkconfig.old
+# Added by cargo
 
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..dc7645f
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,867 @@
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..9fe6f68
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "commonsense-sw"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+cortex-m = { version = "0.7.7", features = ["inline-asm", "critical-section-single-core"] }
+cortex-m-rt = "0.7.3"
+defmt = "0.3.8"
+defmt-rtt = "0.4.1"
+embassy-executor = { version = "0.6.1", features = ["task-arena-size-8192", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-futures = "0.1.1"
+embassy-nrf = { version = "0.2.0", features = ["defmt", "nrf52810", "time-driver-rtc1", "gpiote", "unstable-pac", "time"] }
+embassy-sync = { version = "0.6.0", features = ["defmt"] }
+embassy-time = { version = "0.3.2", features = ["defmt", "defmt-timestamp-uptime"] }
+fixed = "1.28.0"
+panic-probe = { version = "0.3.2", features = ["print-defmt"] }
+static_cell = "2.1.0"
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..30691aa
--- /dev/null
+++ b/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/memory.x b/memory.x
new file mode 100644
index 0000000..7cf560e
--- /dev/null
+++ b/memory.x
@@ -0,0 +1,7 @@
+MEMORY
+{
+  /* NOTE 1 K = 1 KiBi = 1024 bytes */
+  FLASH : ORIGIN = 0x00000000, LENGTH = 256K
+  RAM : ORIGIN = 0x20000000, LENGTH = 24K
+
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..d5d14e8
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,21 @@
+#![no_std]
+#![no_main]
+
+use embassy_executor::Spawner;
+use embassy_nrf::gpio::{Level, Output, OutputDrive};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
+    let mut led = Output::new(p.P0_18, Level::Low, OutputDrive::Standard);
+
+    loop {
+        led.set_high();
+        Timer::after_millis(300).await;
+        led.set_low();
+        Timer::after_millis(300).await;
+    }
+}
+