support: update embassy-stm32 to fix address of backup registers

tele0592/examples/encoder-curves.rs

+use color_eyre::eyre::Context;
+use std::{fs::File, io::Write, time::Duration};
+use tele0592::Controller as _;
+
+const PERIOD: Duration = Duration::from_millis(20);
+const STEPS: usize = 200;
+
+const RAW: bool = true;
+
+fn main() -> color_eyre::Result<()> {
+    color_eyre::install()?;
+    let mut controller = rppal::i2c::I2c::with_bus(8).with_context(|| "opening I²C bus")?;
+    println!(
+        "Firmware version: {:?}",
+        controller.check_firmware_version()?
+    );
+    controller.set_motor_shutdown_timeout(Duration::from_secs(1))?;
+    controller.set_raw_pid_coefficients(0x80, 0x03, 0x00)?;
+
+    let mut relative = controller.new_relative()?;
+    let mut csv = File::create("encoders.csv")?;
+    for speed in [
+        10, 20, 30, 40, 50, 60, 70, 80, 0, -10, -20, -30, -40, -50, -60, -70, -80, 0,
+    ] {
+        if RAW {
+            println!("Setting raw motor speeds to {speed}");
+            controller.set_raw_motor_speed(Some(speed), Some(speed))?;
+        } else {
+            println!("Setting motor speeds to {speed}");
+            controller.set_motor_speed(i16::from(speed), i16::from(speed))?;
+        }
+        for _ in 1..STEPS {
+            std::thread::sleep(PERIOD);
+            let (left, right) = controller.get_relative_encoder_ticks(&mut relative)?;
+            writeln!(csv, "{speed},{left},{right}")?;
+        }
+    }
+    Ok(())
+}