6 files changed, 118 insertions, 4 deletions

diff --git a/examples/stm32f4/src/bin/sdmmc.rs b/examples/stm32f4/src/bin/sdmmc.rs
index 897b0e05e..098fd6986 100644
--- a/examples/stm32f4/src/bin/sdmmc.rs
+++ b/examples/stm32f4/src/bin/sdmmc.rs
@@ -3,7 +3,8 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_stm32::sdmmc::{CmdBlock, DataBlock, Sdmmc, StorageDevice};
+use embassy_stm32::sdmmc::Sdmmc;
+use embassy_stm32::sdmmc::sd::{CmdBlock, DataBlock, StorageDevice};
 use embassy_stm32::time::{Hertz, mhz};
 use embassy_stm32::{Config, bind_interrupts, peripherals, sdmmc};
 use {defmt_rtt as _, panic_probe as _};
@@ -72,7 +73,7 @@ async fn main(_spawner: Spawner) {
     let block_idx = 16;
 
     // SDMMC uses `DataBlock` instead of `&[u8]` to ensure 4 byte alignment required by the hardware.
-    let mut block = DataBlock([0u8; 512]);
+    let mut block = DataBlock::new();
 
     storage.read_block(block_idx, &mut block).await.unwrap();
     info!("Read: {=[u8]:X}...{=[u8]:X}", block[..8], block[512 - 8..]);
diff --git a/examples/stm32f7/src/bin/sdmmc.rs b/examples/stm32f7/src/bin/sdmmc.rs
index 0dd4dd6f3..e5d261d89 100644
--- a/examples/stm32f7/src/bin/sdmmc.rs
+++ b/examples/stm32f7/src/bin/sdmmc.rs
@@ -3,7 +3,8 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_stm32::sdmmc::{CmdBlock, Sdmmc, StorageDevice};
+use embassy_stm32::sdmmc::Sdmmc;
+use embassy_stm32::sdmmc::sd::{CmdBlock, StorageDevice};
 use embassy_stm32::time::{Hertz, mhz};
 use embassy_stm32::{Config, bind_interrupts, peripherals, sdmmc};
 use {defmt_rtt as _, panic_probe as _};
diff --git a/examples/stm32h7/src/bin/sdmmc.rs b/examples/stm32h7/src/bin/sdmmc.rs
index 548d0bd09..f2e5bedeb 100644
--- a/examples/stm32h7/src/bin/sdmmc.rs
+++ b/examples/stm32h7/src/bin/sdmmc.rs
@@ -3,7 +3,8 @@
 
 use defmt::*;
 use embassy_executor::Spawner;
-use embassy_stm32::sdmmc::{CmdBlock, Sdmmc, StorageDevice};
+use embassy_stm32::sdmmc::Sdmmc;
+use embassy_stm32::sdmmc::sd::{CmdBlock, StorageDevice};
 use embassy_stm32::time::mhz;
 use embassy_stm32::{Config, bind_interrupts, peripherals, sdmmc};
 use {defmt_rtt as _, panic_probe as _};
diff --git a/examples/stm32n6/Cargo.toml b/examples/stm32n6/Cargo.toml
index 5ed28eed1..5ad5b97ce 100644
--- a/examples/stm32n6/Cargo.toml
+++ b/examples/stm32n6/Cargo.toml
@@ -32,6 +32,8 @@ 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
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 {}
+}