Merge pull request #4459 from IrinaCh524/feat/lpc55-time-driver

feat: add RTC time driver

3 files changed, 40 insertions, 2 deletions

diff --git a/examples/lpc55s69/Cargo.toml b/examples/lpc55s69/Cargo.toml
index 5faec13da..f9bd409e2 100644
--- a/examples/lpc55s69/Cargo.toml
+++ b/examples/lpc55s69/Cargo.toml
@@ -6,10 +6,10 @@ license = "MIT OR Apache-2.0"
 
 
 [dependencies]
-embassy-nxp = { version = "0.1.0", path = "../../embassy-nxp", features = ["lpc55", "rt", "defmt"] }
+embassy-nxp = { version = "0.1.0", path = "../../embassy-nxp", features = ["lpc55", "rt", "defmt", "time-driver-rtc"] }
 embassy-executor = { version = "0.8.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt"] }
 embassy-sync = { version = "0.7.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-time = { version = "0.4.0", path = "../../embassy-time", features = ["defmt"] }
+embassy-time = { version = "0.4.0", path = "../../embassy-time", features = ["defmt", "tick-hz-32_768"] }
 panic-halt = "1.0.0"
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = { version = "0.7.0"}
diff --git a/examples/lpc55s69/README.md b/examples/lpc55s69/README.md
new file mode 100644
index 000000000..d200f4f99
--- /dev/null
+++ b/examples/lpc55s69/README.md
@@ -0,0 +1,12 @@
+# LPC55S69 Examples
+
+## Available examples:
+- blinky_nop: Blink the integrated RED LED using nops as delay. Useful for flashing simple and known-good software on board.
+- button_executor: Turn on/off an LED by pressing the USER button. Demonstrates how to use the PINT and GPIO drivers.
+- blinky_embassy_time: Blink the integrated RED LED using `embassy-time`. Demonstrates how to use the time-driver that uses RTC. 
+
+## Important Notes
+
+On older version of probe-rs, some examples (such as `blinky_embassy_time`) do not work directly after flashing and the board must be reset after flashing. It is reccomended to update the version of probe-rs to the latest one.
+
+When developing drivers for this board, probe-rs might not be able to flash the board after entering a fault. Either reset the board to clear the fault, or use NXP's proprietary software `LinkServer`/`LinkFlash` to bring the board back to a known-good state.
\ No newline at end of file
diff --git a/examples/lpc55s69/src/bin/blinky_embassy_time.rs b/examples/lpc55s69/src/bin/blinky_embassy_time.rs
new file mode 100644
index 000000000..adc3d8bd3
--- /dev/null
+++ b/examples/lpc55s69/src/bin/blinky_embassy_time.rs
@@ -0,0 +1,26 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_nxp::gpio::{Level, Output};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_halt as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_nxp::init(Default::default());
+    info!("Initialization complete");
+    let mut led = Output::new(p.PIO1_6, Level::Low);
+
+    info!("Entering main loop");
+    loop {
+        info!("led off!");
+        led.set_high();
+        Timer::after_millis(500).await;
+
+        info!("led on!");
+        led.set_low();
+        Timer::after_millis(500).await;
+    }
+}