Rename examples/nrf to examples/nrf52840

examples/nrf52840/src/bin/nvmc.rs

@@ -0,0 +1,43 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use defmt::{info, unwrap};
+use embassy_executor::Spawner;
+use embassy_nrf::nvmc::Nvmc;
+use embassy_time::{Duration, Timer};
+use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
+    info!("Hello NVMC!");
+
+    // probe-run breaks without this, I'm not sure why.
+    Timer::after(Duration::from_secs(1)).await;
+
+    let mut f = Nvmc::new(p.NVMC);
+    const ADDR: u32 = 0x80000;
+
+    info!("Reading...");
+    let mut buf = [0u8; 4];
+    unwrap!(f.read(ADDR, &mut buf));
+    info!("Read: {=[u8]:x}", buf);
+
+    info!("Erasing...");
+    unwrap!(f.erase(ADDR, ADDR + 4096));
+
+    info!("Reading...");
+    let mut buf = [0u8; 4];
+    unwrap!(f.read(ADDR, &mut buf));
+    info!("Read: {=[u8]:x}", buf);
+
+    info!("Writing...");
+    unwrap!(f.write(ADDR, &[1, 2, 3, 4]));
+
+    info!("Reading...");
+    let mut buf = [0u8; 4];
+    unwrap!(f.read(ADDR, &mut buf));
+    info!("Read: {=[u8]:x}", buf);
+}