tests/stm32: add stop and cleanpu

tests/stm32/src/bin/stop.rs

@@ -0,0 +1,53 @@
+// required-features: stop,chrono
+
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+#[path = "../common.rs"]
+mod common;
+
+use chrono::NaiveDate;
+use common::*;
+use cortex_m_rt::entry;
+use embassy_executor::Spawner;
+use embassy_stm32::low_power::{stop_with_rtc, Executor};
+use embassy_stm32::rtc::{Rtc, RtcClockSource, RtcConfig};
+use embassy_time::{Duration, Timer};
+use static_cell::make_static;
+
+#[entry]
+fn main() -> ! {
+    let executor = Executor::take();
+    executor.run(|spawner| {
+        unwrap!(spawner.spawn(async_main(spawner)));
+    });
+}
+
+#[embassy_executor::task]
+async fn async_main(_spawner: Spawner) {
+    let mut config = config();
+
+    config.rcc.rtc = Some(RtcClockSource::LSI);
+
+    let p = embassy_stm32::init(config);
+    info!("Hello World!");
+
+    let now = NaiveDate::from_ymd_opt(2020, 5, 15)
+        .unwrap()
+        .and_hms_opt(10, 30, 15)
+        .unwrap();
+
+    let mut rtc = Rtc::new(p.RTC, RtcConfig::default());
+
+    rtc.set_datetime(now.into()).expect("datetime not set");
+
+    let rtc = make_static!(rtc);
+
+    stop_with_rtc(rtc);
+
+    info!("Waiting 5 seconds");
+    Timer::after(Duration::from_secs(5)).await;
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}