Added STM32 ADCv1 analog watchdog implementation

1 files changed, 34 insertions, 0 deletions

diff --git a/examples/stm32f0/src/bin/adc-watchdog.rs b/examples/stm32f0/src/bin/adc-watchdog.rs
new file mode 100644
index 000000000..ff98aac8e
--- /dev/null
+++ b/examples/stm32f0/src/bin/adc-watchdog.rs
@@ -0,0 +1,34 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::adc::{self, Adc, WatchdogChannels};
+use embassy_stm32::bind_interrupts;
+use embassy_stm32::peripherals::ADC1;
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    ADC1_COMP => adc::InterruptHandler<ADC1>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
+    info!("ADC watchdog example");
+
+    let mut adc = Adc::new(p.ADC1, Irqs);
+    let pin = p.PC1;
+
+    loop {
+        // Wait for pin to go high
+        adc.init_watchdog(WatchdogChannels::from_channel(&pin), 0, 0x07F);
+        let v_high = adc.monitor_watchdog().await;
+        info!("ADC sample is high {}", v_high);
+
+        // Wait for pin to go low
+        adc.init_watchdog(WatchdogChannels::from_channel(&pin), 0x01f, 0xFFF);
+        let v_low = adc.monitor_watchdog().await;
+        info!("ADC sample is low {}", v_low);
+    }
+}