Make trait comments more consistent.

rp2040-hal/examples/adc.rs

@@ -20,7 +20,7 @@ use panic_halt as _;
 // Alias for our HAL crate
 use rp2040_hal as hal;
 
-// The traits we need
+// Some traits we need
 use core::fmt::Write;
 use embedded_hal::adc::OneShot;
 use embedded_time::fixed_point::FixedPoint;

rp2040-hal/examples/blinky.rs

@@ -23,7 +23,7 @@ use rp2040_hal as hal;
 // register access
 use hal::pac;
 
-// A GPIO trait we need
+// Some traits we need
 use embedded_hal::digital::v2::OutputPin;
 use embedded_time::fixed_point::FixedPoint;
 use rp2040_hal::clocks::Clock;

rp2040-hal/examples/gpio_in_out.rs

@@ -23,7 +23,7 @@ use rp2040_hal as hal;
 // register access
 use hal::pac;
 
-// The traits we need
+// Some traits we need
 use embedded_hal::digital::v2::InputPin;
 use embedded_hal::digital::v2::OutputPin;
 

rp2040-hal/examples/i2c.rs

@@ -16,10 +16,8 @@ use cortex_m_rt::entry;
 // be linked)
 use panic_halt as _;
 
-// The I²C trait from Embedded HAL we need
+// Some traits we need
 use embedded_hal::blocking::i2c::Write;
-
-// A frequency/time related trait we need
 use embedded_time::rate::Extensions;
 
 // Alias for our HAL crate

rp2040-hal/examples/lcd_display.rs

@@ -25,7 +25,7 @@ use rp2040_hal as hal;
 // Our LCD driver
 use hd44780_driver as hd44780;
 
-// Traits we need
+// Some traits we need
 use embedded_time::fixed_point::FixedPoint;
 use rp2040_hal::clocks::Clock;
 
@@ -118,3 +118,5 @@ fn main() -> ! {
         // Empty loop
     }
 }
+
+// End of file

rp2040-hal/examples/spi.rs

@@ -22,7 +22,7 @@ use panic_halt as _;
 // Alias for our HAL crate
 use rp2040_hal as hal;
 
-// Traits we need
+// Some traits we need
 use cortex_m::prelude::*;
 use embedded_time::rate::Extensions;
 use rp2040_hal::clocks::Clock;
@@ -122,5 +122,9 @@ fn main() -> ! {
     };
 
     #[allow(clippy::empty_loop)]
-    loop {}
+    loop {
+        // Empty loop
+    }
 }
+
+// End of file

rp2040-hal/examples/uart.rs

@@ -104,3 +104,5 @@ fn main() -> ! {
         value += 1
     }
 }
+
+// End of file

rp2040-hal/examples/watchdog.rs

@@ -23,7 +23,7 @@ use rp2040_hal as hal;
 // register access
 use hal::pac;
 
-// Traits we need
+// Some traits we need
 use embedded_hal::digital::v2::OutputPin;
 use embedded_hal::watchdog::{Watchdog, WatchdogEnable};
 use embedded_time::duration::Extensions;
@@ -46,7 +46,8 @@ const XTAL_FREQ_HZ: u32 = 12_000_000u32;
 /// as soon as all global variables are initialised.
 ///
 /// The function configures the RP2040 peripherals, then toggles a GPIO pin in
-/// an infinite loop. If there is an LED connected to that pin, it will blink.
+/// an infinite loop. After a period of time, the watchdog will kick in to reset
+/// the CPU.
 #[entry]
 fn main() -> ! {
     // Grab our singleton objects
@@ -110,3 +111,5 @@ fn main() -> ! {
         delay.delay_ms(100);
     }
 }
+
+// End of file