Merge branch 'embassy-rs:main' into update_doc_comment_for_adc_read

3 files changed, 218 insertions, 3 deletions

diff --git a/examples/mimxrt6/src/bin/crc.rs b/examples/mimxrt6/src/bin/crc.rs
new file mode 100644
index 000000000..005a250e5
--- /dev/null
+++ b/examples/mimxrt6/src/bin/crc.rs
@@ -0,0 +1,175 @@
+#![no_std]
+#![no_main]
+
+extern crate embassy_imxrt_examples;
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_imxrt::crc::{Config, Crc, Polynomial};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut p = embassy_imxrt::init(Default::default());
+    let data = b"123456789";
+
+    info!("Initializing CRC");
+
+    // CRC-CCITT
+    let mut crc = Crc::new(p.CRC.reborrow(), Default::default());
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0x29b1);
+
+    // CRC16-ARC
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc16,
+            reverse_in: true,
+            reverse_out: true,
+            complement_out: false,
+            seed: 0,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0xbb3d);
+
+    // CRC16-CMS
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc16,
+            reverse_in: false,
+            reverse_out: false,
+            complement_out: false,
+            seed: 0xffff,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0xaee7);
+
+    // CRC16-DDS-110
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc16,
+            reverse_in: false,
+            reverse_out: false,
+            complement_out: false,
+            seed: 0x800d,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0x9ecf);
+
+    // CRC16-MAXIM-DOW
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc16,
+            reverse_in: true,
+            reverse_out: true,
+            complement_out: true,
+            seed: 0,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0x44c2);
+
+    // CRC16-MODBUS
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc16,
+            reverse_in: true,
+            reverse_out: true,
+            complement_out: false,
+            seed: 0xffff,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0x4b37);
+
+    // CRC32-BZIP2
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc32,
+            reverse_in: false,
+            reverse_out: false,
+            complement_out: true,
+            seed: 0xffff_ffff,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0xfc89_1918);
+
+    // CRC32-CKSUM
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc32,
+            reverse_in: false,
+            reverse_out: false,
+            complement_out: true,
+            seed: 0,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0x765e_7680);
+
+    // CRC32-ISO-HDLC
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc32,
+            reverse_in: true,
+            reverse_out: true,
+            complement_out: true,
+            seed: 0xffff_ffff,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0xcbf4_3926);
+
+    // CRC32-JAMCRC
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc32,
+            reverse_in: true,
+            reverse_out: true,
+            complement_out: false,
+            seed: 0xffff_ffff,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0x340b_c6d9);
+
+    // CRC32-MPEG-2
+    let mut crc = Crc::new(
+        p.CRC.reborrow(),
+        Config {
+            polynomial: Polynomial::Crc32,
+            reverse_in: false,
+            reverse_out: false,
+            complement_out: false,
+            seed: 0xffff_ffff,
+            ..Default::default()
+        },
+    );
+    let output = crc.feed_bytes(data);
+    defmt::assert_eq!(output, 0x0376_e6e7);
+
+    info!("end program");
+    cortex_m::asm::bkpt();
+}
diff --git a/examples/mimxrt6/src/bin/rng.rs b/examples/mimxrt6/src/bin/rng.rs
new file mode 100644
index 000000000..5f64cb96a
--- /dev/null
+++ b/examples/mimxrt6/src/bin/rng.rs
@@ -0,0 +1,40 @@
+#![no_std]
+#![no_main]
+
+extern crate embassy_imxrt_examples;
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_imxrt::rng::Rng;
+use embassy_imxrt::{bind_interrupts, peripherals, rng};
+use rand::RngCore;
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    RNG => rng::InterruptHandler<peripherals::RNG>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_imxrt::init(Default::default());
+
+    info!("Initializing RNG");
+    let mut rng = Rng::new(p.RNG, Irqs);
+    let mut buf = [0u8; 65];
+
+    // Async interface
+    unwrap!(rng.async_fill_bytes(&mut buf).await);
+    info!("random bytes: {:02x}", buf);
+
+    // RngCore interface
+    let mut random_bytes = [0; 16];
+
+    let random_u32 = rng.next_u32();
+    let random_u64 = rng.next_u64();
+
+    rng.fill_bytes(&mut random_bytes);
+
+    info!("random_u32 {}", random_u32);
+    info!("random_u64 {}", random_u64);
+    info!("random_bytes {}", random_bytes);
+}
diff --git a/examples/mimxrt6/src/lib.rs b/examples/mimxrt6/src/lib.rs
index da6e14427..3c3ea1981 100644
--- a/examples/mimxrt6/src/lib.rs
+++ b/examples/mimxrt6/src/lib.rs
@@ -6,15 +6,15 @@ use {defmt_rtt as _, panic_probe as _};
 // auto-generated version information from Cargo.toml
 include!(concat!(env!("OUT_DIR"), "/biv.rs"));
 
-#[link_section = ".otfad"]
+#[unsafe(link_section = ".otfad")]
 #[used]
 static OTFAD: [u8; 256] = [0; 256];
 
 #[rustfmt::skip]
-#[link_section = ".fcb"]
+#[unsafe(link_section = ".fcb")]
 #[used]
 static FCB: FlexSPIFlashConfigurationBlock = FlexSPIFlashConfigurationBlock::build();
 
-#[link_section = ".keystore"]
+#[unsafe(link_section = ".keystore")]
 #[used]
 static KEYSTORE: [u8; 2048] = [0; 2048];