adc: add test for wba

1 files changed, 39 insertions, 0 deletions

diff --git a/tests/stm32/src/bin/adc.rs b/tests/stm32/src/bin/adc.rs
new file mode 100644
index 000000000..6cedc6498
--- /dev/null
+++ b/tests/stm32/src/bin/adc.rs
@@ -0,0 +1,39 @@
+#![no_std]
+#![no_main]
+
+// required-features: dac
+
+#[path = "../common.rs"]
+mod common;
+
+use common::*;
+use embassy_executor::Spawner;
+use embassy_stm32::adc::{Adc, SampleTime};
+use embassy_time::Timer;
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    // Initialize the board and obtain a Peripherals instance
+    let p: embassy_stm32::Peripherals = init();
+
+    let adc = peri!(p, ADC);
+    let mut adc_pin = peri!(p, DAC_PIN);
+
+    let mut adc = Adc::new_adc4(adc);
+
+    // Now wait a little to obtain a stable value
+    Timer::after_millis(30).await;
+    let _ = adc.blocking_read(&mut adc_pin, SampleTime::from_bits(0));
+
+    for _ in 0..=255 {
+        // Now wait a little to obtain a stable value
+        Timer::after_millis(30).await;
+
+        // Need to steal the peripherals here because PA4 is obviously in use already
+        let _ = adc.blocking_read(&mut adc_pin, SampleTime::from_bits(0));
+    }
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}