4 files changed, 131 insertions, 4 deletions

diff --git a/examples/stm32l0/src/bin/dds.rs b/examples/stm32l0/src/bin/dds.rs
index a54b28a93..eaa7a61a8 100644
--- a/examples/stm32l0/src/bin/dds.rs
+++ b/examples/stm32l0/src/bin/dds.rs
@@ -11,7 +11,7 @@ use embassy_stm32::rcc::*;
 use embassy_stm32::time::hz;
 use embassy_stm32::timer::low_level::{Timer as LLTimer, *};
 use embassy_stm32::timer::simple_pwm::PwmPin;
-use embassy_stm32::timer::Channel;
+use embassy_stm32::timer::{Ch3, Channel};
 use embassy_stm32::{interrupt, pac, Config};
 use panic_probe as _;
 
@@ -70,7 +70,7 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(config);
 
     // setup PWM pin in AF mode
-    let _ch3 = PwmPin::new_ch3(p.PA2, OutputType::PushPull);
+    let _ch3 = PwmPin::<_, Ch3>::new(p.PA2, OutputType::PushPull);
 
     // initialize timer
     // we cannot use SimplePWM here because the Time is privately encapsulated
diff --git a/examples/stm32l0/src/bin/eeprom.rs b/examples/stm32l0/src/bin/eeprom.rs
new file mode 100644
index 000000000..370246644
--- /dev/null
+++ b/examples/stm32l0/src/bin/eeprom.rs
@@ -0,0 +1,32 @@
+#![no_std]
+#![no_main]
+
+use defmt::{info, unwrap};
+use embassy_executor::Spawner;
+use embassy_stm32::flash::{Flash, EEPROM_BASE, EEPROM_SIZE};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Default::default());
+
+    info!("Hello Eeprom! Start: {}, Size: {}", EEPROM_BASE, EEPROM_SIZE);
+
+    const ADDR: u32 = 0x0;
+
+    let mut f = Flash::new_blocking(p.FLASH);
+
+    info!("Reading...");
+    let mut buf = [0u8; 8];
+    unwrap!(f.eeprom_read_slice(ADDR, &mut buf));
+    info!("Read: {=[u8]:x}", buf);
+
+    info!("Writing...");
+    unwrap!(f.eeprom_write_slice(ADDR, &[1, 2, 3, 4, 5, 6, 7, 8]));
+
+    info!("Reading...");
+    let mut buf = [0u8; 8];
+    unwrap!(f.eeprom_read_slice(ADDR, &mut buf));
+    info!("Read: {=[u8]:x}", buf);
+    assert_eq!(&buf[..], &[1, 2, 3, 4, 5, 6, 7, 8]);
+}
diff --git a/examples/stm32l0/src/bin/raw_spawn.rs b/examples/stm32l0/src/bin/raw_spawn.rs
index 29c7e0dc7..6385e3c8f 100644
--- a/examples/stm32l0/src/bin/raw_spawn.rs
+++ b/examples/stm32l0/src/bin/raw_spawn.rs
@@ -42,8 +42,8 @@ fn main() -> ! {
     let run2_task = unsafe { make_static(&run2_task) };
 
     executor.run(|spawner| {
-        unwrap!(spawner.spawn(run1_task.spawn(|| run1())));
-        unwrap!(spawner.spawn(run2_task.spawn(|| run2())));
+        spawner.spawn(unwrap!(run1_task.spawn(|| run1())));
+        spawner.spawn(unwrap!(run2_task.spawn(|| run2())));
     });
 }
 
diff --git a/examples/stm32l0/src/bin/usb_serial.rs b/examples/stm32l0/src/bin/usb_serial.rs
new file mode 100644
index 000000000..fdb1aeb59
--- /dev/null
+++ b/examples/stm32l0/src/bin/usb_serial.rs
@@ -0,0 +1,95 @@
+#![no_std]
+#![no_main]
+
+use defmt::{panic, *};
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_stm32::usb::{self, Driver, Instance};
+use embassy_stm32::{bind_interrupts, peripherals};
+use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
+use embassy_usb::driver::EndpointError;
+use embassy_usb::Builder;
+use {defmt_rtt as _, panic_probe as _};
+
+bind_interrupts!(struct Irqs {
+    USB => usb::InterruptHandler<peripherals::USB>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut config = embassy_stm32::Config::default();
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hsi = true;
+        config.rcc.pll = Some(Pll {
+            source: PllSource::HSI,
+            mul: PllMul::MUL6, // PLLVCO = 16*6 = 96Mhz
+            div: PllDiv::DIV3, // 32Mhz clock (16 * 6 / 3)
+        });
+        config.rcc.sys = Sysclk::PLL1_R;
+    }
+
+    let p = embassy_stm32::init(config);
+
+    info!("Hello World!");
+
+    let driver = Driver::new(p.USB, Irqs, p.PA12, p.PA11);
+
+    let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
+    config.manufacturer = Some("Embassy");
+    config.product = Some("USB-Serial Example");
+    config.serial_number = Some("123456");
+
+    let mut config_descriptor = [0; 256];
+    let mut bos_descriptor = [0; 256];
+    let mut control_buf = [0; 64];
+
+    let mut state = State::new();
+
+    let mut builder = Builder::new(
+        driver,
+        config,
+        &mut config_descriptor,
+        &mut bos_descriptor,
+        &mut [], // no msos descriptors
+        &mut control_buf,
+    );
+
+    let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
+
+    let mut usb = builder.build();
+
+    let usb_fut = usb.run();
+
+    let echo_fut = async {
+        loop {
+            class.wait_connection().await;
+            info!("Connected");
+            let _ = echo(&mut class).await;
+            info!("Disconnected");
+        }
+    };
+
+    join(usb_fut, echo_fut).await;
+}
+
+struct Disconnected {}
+
+impl From<EndpointError> for Disconnected {
+    fn from(val: EndpointError) -> Self {
+        match val {
+            EndpointError::BufferOverflow => panic!("Buffer overflow"),
+            EndpointError::Disabled => Disconnected {},
+        }
+    }
+}
+
+async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
+    let mut buf = [0; 64];
+    loop {
+        let n = class.read_packet(&mut buf).await?;
+        let data = &buf[..n];
+        info!("data: {:x}", data);
+        class.write_packet(data).await?;
+    }
+}