7 files changed, 249 insertions, 0 deletions

diff --git a/examples/stm32n6/.cargo/config.toml b/examples/stm32n6/.cargo/config.toml
new file mode 100644
index 000000000..2fdd70649
--- /dev/null
+++ b/examples/stm32n6/.cargo/config.toml
@@ -0,0 +1,8 @@
+[target.thumbv8m.main-none-eabihf]
+runner = 'probe-rs run --chip STM32N657'
+
+[build]
+target = "thumbv8m.main-none-eabihf"
+
+[env]
+DEFMT_LOG = "trace"
diff --git a/examples/stm32n6/Cargo.toml b/examples/stm32n6/Cargo.toml
new file mode 100644
index 000000000..5ad5b97ce
--- /dev/null
+++ b/examples/stm32n6/Cargo.toml
@@ -0,0 +1,80 @@
+[package]
+edition = "2021"
+name = "embassy-stm32n6-examples"
+version = "0.1.0"
+license = "MIT OR Apache-2.0"
+publish = false
+
+[dependencies]
+# Change stm32h563zi to your chip name, if necessary.
+embassy-stm32 = { version = "0.4.0", path = "../../embassy-stm32", features = ["defmt", "stm32n657x0", "time-driver-any", "exti", "unstable-pac"] }
+embassy-sync = { version = "0.7.2", path = "../../embassy-sync", features = ["defmt"] }
+embassy-executor = { version = "0.9.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt"] }
+embassy-time = { version = "0.5.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
+embassy-net = { version = "0.7.1", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "proto-ipv6"] }
+embassy-usb = { version = "0.5.1", path = "../../embassy-usb", features = ["defmt"] }
+embassy-futures = { version = "0.1.2", path = "../../embassy-futures" }
+
+defmt = "1.0.1"
+defmt-rtt = "1.0.0"
+
+cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
+cortex-m-rt = "0.7.0"
+embedded-hal = "0.2.6"
+embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
+embedded-hal-async = { version = "1.0" }
+embedded-io-async = { version = "0.6.1" }
+embedded-nal-async = "0.8.0"
+panic-probe = { version = "1.0.0", features = ["print-defmt"] }
+heapless = { version = "0.8", default-features = false }
+critical-section = "1.1"
+micromath = "2.0.0"
+stm32-fmc = "0.3.0"
+embedded-storage = "0.3.1"
+static_cell = "2"
+hmac = "0.12.1"
+sha2 = { version = "0.10.9", default-features = false }
+
+
+# cargo build/run
+[profile.dev]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = 3 # <-
+overflow-checks = true # <-
+
+# cargo test
+[profile.test]
+codegen-units = 1
+debug = 2
+debug-assertions = true # <-
+incremental = false
+opt-level = 3 # <-
+overflow-checks = true # <-
+
+# cargo build/run --release
+[profile.release]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = 3 # <-
+overflow-checks = false # <-
+
+# cargo test --release
+[profile.bench]
+codegen-units = 1
+debug = 2
+debug-assertions = false # <-
+incremental = false
+lto = 'fat'
+opt-level = 3 # <-
+overflow-checks = false # <-
+
+[package.metadata.embassy]
+build = [
+  { target = "thumbv8m.main-none-eabihf", artifact-dir = "out/examples/stm32n6" }
+]
diff --git a/examples/stm32n6/build.rs b/examples/stm32n6/build.rs
new file mode 100644
index 000000000..8cd32d7ed
--- /dev/null
+++ b/examples/stm32n6/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/stm32n6/memory.x b/examples/stm32n6/memory.x
new file mode 100644
index 000000000..59f127adc
--- /dev/null
+++ b/examples/stm32n6/memory.x
@@ -0,0 +1,5 @@
+MEMORY
+{
+  FLASH       : ORIGIN = 0x34180400,   LENGTH = 255K
+  RAM         : ORIGIN = 0x341C0000,   LENGTH = 256K
+}
diff --git a/examples/stm32n6/src/bin/blinky.rs b/examples/stm32n6/src/bin/blinky.rs
new file mode 100644
index 000000000..a8baf16af
--- /dev/null
+++ b/examples/stm32n6/src/bin/blinky.rs
@@ -0,0 +1,42 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::exti::{self, ExtiInput};
+use embassy_stm32::gpio::{Level, Output, Pull, Speed};
+use embassy_stm32::{bind_interrupts, interrupt};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(
+    pub struct Irqs{
+        EXTI13 => exti::InterruptHandler<interrupt::typelevel::EXTI13>;
+});
+
+#[embassy_executor::task]
+async fn button_task(mut p: ExtiInput<'static>) {
+    loop {
+        p.wait_for_any_edge().await;
+        info!("button pressed!");
+    }
+}
+
+#[embassy_executor::main]
+async fn main(spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
+    info!("Hello World!");
+
+    let mut led = Output::new(p.PG10, Level::High, Speed::Low);
+    let button = ExtiInput::new(p.PC13, p.EXTI13, Pull::Up, Irqs);
+
+    spawner.spawn(button_task(button).unwrap());
+
+    loop {
+        led.set_high();
+        Timer::after_millis(500).await;
+
+        led.set_low();
+        Timer::after_millis(500).await;
+    }
+}
diff --git a/examples/stm32n6/src/bin/crc.rs b/examples/stm32n6/src/bin/crc.rs
new file mode 100644
index 000000000..d1b545d5b
--- /dev/null
+++ b/examples/stm32n6/src/bin/crc.rs
@@ -0,0 +1,31 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::crc::{Config, Crc, InputReverseConfig, PolySize};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
+    info!("Hello World!");
+
+    // Setup for: https://crccalc.com/?crc=Life, it never dieWomen are my favorite guy&method=crc32&datatype=ascii&outtype=0
+    let mut crc = Crc::new(
+        p.CRC,
+        unwrap!(Config::new(
+            InputReverseConfig::Byte,
+            true,
+            PolySize::Width32,
+            0xFFFFFFFF,
+            0x04C11DB7
+        )),
+    );
+
+    let output = crc.feed_bytes(b"Life, it never die\nWomen are my favorite guy") ^ 0xFFFFFFFF;
+
+    defmt::assert_eq!(output, 0x33F0E26B);
+
+    cortex_m::asm::bkpt();
+}
diff --git a/examples/stm32n6/src/bin/hash.rs b/examples/stm32n6/src/bin/hash.rs
new file mode 100644
index 000000000..9f248318f
--- /dev/null
+++ b/examples/stm32n6/src/bin/hash.rs
@@ -0,0 +1,78 @@
+#![no_std]
+#![no_main]
+
+use defmt::info;
+use embassy_executor::Spawner;
+use embassy_stm32::hash::*;
+use embassy_stm32::{Config, bind_interrupts, hash, peripherals};
+use embassy_time::Instant;
+use hmac::{Hmac, Mac};
+use sha2::{Digest, Sha256};
+use {defmt_rtt as _, panic_probe as _};
+
+type HmacSha256 = Hmac<Sha256>;
+
+bind_interrupts!(struct Irqs {
+    HASH => hash::InterruptHandler<peripherals::HASH>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
+    let config = Config::default();
+    let p = embassy_stm32::init(config);
+
+    let test_1: &[u8] = b"as;dfhaslfhas;oifvnasd;nifvnhasd;nifvhndlkfghsd;nvfnahssdfgsdafgsasdfasdfasdfasdfasdfghjklmnbvcalskdjghalskdjgfbaslkdjfgbalskdjgbalskdjbdfhsdfhsfghsfghfgh";
+    let test_2: &[u8] = b"fdhalksdjfhlasdjkfhalskdjfhgal;skdjfgalskdhfjgalskdjfglafgadfgdfgdafgaadsfgfgdfgadrgsyfthxfgjfhklhjkfgukhulkvhlvhukgfhfsrghzdhxyfufynufyuszeradrtydyytserr";
+
+    let mut hw_hasher = Hash::new_blocking(p.HASH, Irqs);
+
+    let hw_start_time = Instant::now();
+
+    // Compute a digest in hardware.
+    let mut context = hw_hasher.start(Algorithm::SHA256, DataType::Width8, None);
+    hw_hasher.update_blocking(&mut context, test_1);
+    hw_hasher.update_blocking(&mut context, test_2);
+    let mut hw_digest: [u8; 32] = [0; 32];
+    hw_hasher.finish_blocking(context, &mut hw_digest);
+
+    let hw_end_time = Instant::now();
+    let hw_execution_time = hw_end_time - hw_start_time;
+
+    let sw_start_time = Instant::now();
+
+    // Compute a digest in software.
+    let mut sw_hasher = Sha256::new();
+    sw_hasher.update(test_1);
+    sw_hasher.update(test_2);
+    let sw_digest = sw_hasher.finalize();
+
+    let sw_end_time = Instant::now();
+    let sw_execution_time = sw_end_time - sw_start_time;
+
+    info!("Hardware Digest: {:?}", hw_digest);
+    info!("Software Digest: {:?}", sw_digest[..]);
+    info!("Hardware Execution Time: {:?}", hw_execution_time);
+    info!("Software Execution Time: {:?}", sw_execution_time);
+    assert_eq!(hw_digest, sw_digest[..]);
+
+    let hmac_key: [u8; 64] = [0x55; 64];
+
+    // Compute HMAC in hardware.
+    let mut sha256hmac_context = hw_hasher.start(Algorithm::SHA256, DataType::Width8, Some(&hmac_key));
+    hw_hasher.update_blocking(&mut sha256hmac_context, test_1);
+    hw_hasher.update_blocking(&mut sha256hmac_context, test_2);
+    let mut hw_hmac: [u8; 32] = [0; 32];
+    hw_hasher.finish_blocking(sha256hmac_context, &mut hw_hmac);
+
+    // Compute HMAC in software.
+    let mut sw_mac = HmacSha256::new_from_slice(&hmac_key).unwrap();
+    sw_mac.update(test_1);
+    sw_mac.update(test_2);
+    let sw_hmac = sw_mac.finalize().into_bytes();
+
+    info!("Hardware HMAC: {:?}", hw_hmac);
+    info!("Software HMAC: {:?}", sw_hmac[..]);
+    assert_eq!(hw_hmac, sw_hmac[..]);
+
+    loop {}
+}