From 76d2d27def1a911e23950dd1fceef9509c1ac56b Mon Sep 17 00:00:00 2001 From: datdenkikniet Date: Mon, 17 Apr 2023 07:43:37 +0200 Subject: [PATCH] Fix example --- examples/rp2040_local_i2c_init/src/main.rs | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/examples/rp2040_local_i2c_init/src/main.rs b/examples/rp2040_local_i2c_init/src/main.rs index 67768927e9..a7ec08d022 100644 --- a/examples/rp2040_local_i2c_init/src/main.rs +++ b/examples/rp2040_local_i2c_init/src/main.rs @@ -103,13 +103,23 @@ mod app { #[task(local = [i2c, led])] async fn heartbeat(ctx: heartbeat::Context) { - // Flicker the built-in LED - _ = ctx.local.led.toggle(); + // Loop forever. + // + // It is important to remember that tasks that loop + // forever should have an `await` somewhere in that loop. + // + // Without the await, the task will never yield back to + // the async executor, which means that no other lower or + // equal priority task will be able to run. + loop { + // Flicker the built-in LED + _ = ctx.local.led.toggle(); - // Congrats, you can use your i2c and have access to it here, - // now to do something with it! + // Congrats, you can use your i2c and have access to it here, + // now to do something with it! - // Re-spawn this task after 1 second - Timer::delay(1000.millis()).await; + // Delay for 1 second + Timer::delay(1000.millis()).await; + } } }