Merge branch 'embassy-rs:main' into obe1line-stm32c071

1 files changed, 62 insertions, 0 deletions

diff --git a/examples/mimxrt1011/src/bin/button.rs b/examples/mimxrt1011/src/bin/button.rs
new file mode 100644
index 000000000..e63d7171d
--- /dev/null
+++ b/examples/mimxrt1011/src/bin/button.rs
@@ -0,0 +1,62 @@
+//! This example works on the following boards:
+//! - IMXRT1010-EVK
+//! - Adafruit Metro M7 (with microSD or with AirLift), requires an external button
+//! - Makerdiary iMX RT1011 Nano Kit (TODO: currently untested, please change this)
+//!
+//! Although beware you will need to change the GPIO pins being used (scroll down).
+
+#![no_std]
+#![no_main]
+
+use defmt::info;
+use embassy_executor::Spawner;
+use embassy_nxp::gpio::{Input, Level, Output, Pull};
+// Must include `embassy_imxrt1011_examples` to ensure the FCB gets linked.
+use {defmt_rtt as _, embassy_imxrt1011_examples as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
+    let p = embassy_nxp::init(Default::default());
+    info!("Hello world!");
+
+    /* Pick the pins to use depending on your board. */
+
+    // IMXRT1010-EVK
+    //
+    // LED (D25) and user button (SW4)
+    let (led, button) = (p.GPIO_11, p.GPIO_SD_05);
+
+    // Adafruit Metro M7 (both microSD and AirLift variants)
+    //
+    // The LED is connected to D13 on the board.
+    //
+    // In particular the Metro M7 has no board user buttons, so you will need to connect a button.
+    // Any other GPIO pin can be used. GPIO_04 is used for example since it is on pin D12.
+    // let (led, button) = (p.GPIO_03, p.GPIO_04);
+
+    // Makerdiary iMX RT1011 Nano Kit
+    //
+    // LED0 and user button.
+    // let (led, button) = (p.GPIO_SD_04, p.GPIO_SD_03);
+
+    let mut button = Input::new(button, Pull::Up100K);
+    let mut led = Output::new(led, Level::Low);
+    led.set_high();
+
+    loop {
+        button.wait_for_falling_edge().await;
+
+        info!("Toggled");
+        led.toggle();
+
+        // The RT1010EVK has a 100 nF debouncing capacitor which results in false positive events
+        // when listening for a falling edge in a loop, wait for the rising edge and then wait for
+        // stabilization.
+        button.wait_for_rising_edge().await;
+
+        // Stabilization.
+        for _ in 0..100_000 {
+            cortex_m::asm::nop();
+        }
+    }
+}