Fix examples broken by the macro fix.

examples/stm32f4/src/bin/i2c.rs

@@ -15,7 +15,7 @@ const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
+async fn main(_spawner: Spawner) {
     info!("Hello world!");
     let p = embassy_stm32::init(Default::default());
 

examples/stm32f4/src/bin/sdmmc.rs

@@ -14,7 +14,7 @@ use {defmt_rtt as _, panic_probe as _};
 const ALLOW_WRITES: bool = false;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(48));
     config.rcc.pll48 = true;
@@ -75,6 +75,4 @@ async fn main(_spawner: Spawner) -> ! {
 
     sdmmc.read_block(block_idx, &mut block).await.unwrap();
     info!("Read: {=[u8]:X}...{=[u8]:X}", block[..8], block[512 - 8..]);
-
-    loop {}
 }

examples/stm32f7/src/bin/eth.rs

@@ -106,7 +106,7 @@ async fn main(spawner: Spawner) -> ! {
             let r = socket.write_all(&buf).await;
             if let Err(e) = r {
                 info!("write error: {:?}", e);
-                return;
+                continue;
             }
             Timer::after(Duration::from_secs(1)).await;
         }

examples/stm32f7/src/bin/sdmmc.rs

@@ -10,7 +10,7 @@ use embassy_stm32::{interrupt, Config};
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
+async fn main(_spawner: Spawner) {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(200));
     config.rcc.pll48 = true;
@@ -41,6 +41,4 @@ async fn main(_spawner: Spawner) -> ! {
     let card = unwrap!(sdmmc.card());
 
     info!("Card: {:#?}", Debug2Format(card));
-
-    loop {}
 }

examples/stm32h7/src/bin/eth.rs

@@ -106,7 +106,7 @@ async fn main(spawner: Spawner) -> ! {
             let r = socket.write_all(b"Hello\n").await;
             if let Err(e) = r {
                 info!("write error: {:?}", e);
-                return;
+                continue;
             }
             Timer::after(Duration::from_secs(1)).await;
         }

examples/stm32h7/src/bin/eth_client.rs

@@ -108,7 +108,7 @@ async fn main(spawner: Spawner) -> ! {
             let r = connection.write_all(b"Hello\n").await;
             if let Err(e) = r {
                 info!("write error: {:?}", e);
-                return;
+                continue;
             }
             Timer::after(Duration::from_secs(1)).await;
         }

examples/stm32h7/src/bin/i2c.rs

@@ -14,7 +14,7 @@ const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
+async fn main(_spawner: Spawner) {
     info!("Hello world!");
     let p = embassy_stm32::init(Default::default());
 

examples/stm32l4/src/bin/i2c.rs

@@ -14,7 +14,7 @@ const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
+async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     let irq = interrupt::take!(I2C2_EV);
     let mut i2c = I2c::new(

examples/stm32l4/src/bin/i2c_blocking_async.rs

@@ -16,7 +16,7 @@ const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
+async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     let irq = interrupt::take!(I2C2_EV);
     let i2c = I2c::new(

examples/stm32l4/src/bin/i2c_dma.rs

@@ -13,7 +13,7 @@ const ADDRESS: u8 = 0x5F;
 const WHOAMI: u8 = 0x0F;
 
 #[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
+async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     let irq = interrupt::take!(I2C2_EV);
     let mut i2c = I2c::new(