feat: add more example programs

Cargo.toml

@@ -6,7 +6,7 @@ edition = "2024"
 
 [dependencies]
 hal = { package = "stm32l0xx-hal", version = "0.10.0", features = [
-	"mcu-STM32L053R8Hx", # mcu-STM32L053R8Hx or mcu-STM32L053R8Tx not sure
+	"mcu-STM32L053R8Tx",
 	"rt",
 ] }
 cortex-m-rt = "0.7.5"

examples/blinky-press.rs

@@ -0,0 +1,36 @@
+#![no_main]
+#![no_std]
+
+extern crate panic_halt;
+
+use cortex_m_rt::entry;
+use hal::{pac, prelude::*, rcc::Config};
+
+#[entry]
+fn main() -> ! {
+    let dp = pac::Peripherals::take().unwrap();
+    let cp = cortex_m::Peripherals::take().unwrap();
+
+    // Configure the clock.
+    let mut rcc = dp.RCC.freeze(Config::hsi16());
+
+    let gpioa = dp.GPIOA.split(&mut rcc);
+    let gpioc = dp.GPIOC.split(&mut rcc);
+
+    // Configure PA5 as output.
+    let mut led = gpioa.pa5.into_push_pull_output();
+    let mut button = gpioc.pc13.into_pull_down_input();
+
+    // Get the delay provider.
+    let mut delay = cp.SYST.delay(rcc.clocks);
+
+    loop {
+        if button.is_low().expect("button.is_low failed") {
+            led.set_high().unwrap();
+        } else {
+            led.set_low().unwrap();
+        }
+
+        delay.delay_ms(10_u16);
+    }
+}

examples/blinky-toggle.rs

@@ -0,0 +1,45 @@
+#![no_main]
+#![no_std]
+
+extern crate panic_halt;
+
+use cortex_m_rt::entry;
+use hal::{pac, prelude::*, rcc::Config};
+
+#[entry]
+fn main() -> ! {
+    let dp = pac::Peripherals::take().unwrap();
+    let cp = cortex_m::Peripherals::take().unwrap();
+
+    // Configure the clock.
+    let mut rcc = dp.RCC.freeze(Config::hsi16());
+
+    let gpioa = dp.GPIOA.split(&mut rcc);
+    let gpioc = dp.GPIOC.split(&mut rcc);
+
+    // Configure PA5 as output.
+    let mut led = gpioa.pa5.into_push_pull_output();
+    let button = gpioc.pc13.into_pull_down_input();
+
+    // Get the delay provider.
+    let mut _delay = cp.SYST.delay(rcc.clocks);
+
+    let mut is_on: bool;
+    let mut was_on: bool = false;
+    #[allow(unused_variables)] // it is used later??
+    let mut enable_led: bool = false;
+
+    loop {
+        is_on = button.is_low().unwrap();
+        if is_on != was_on {
+            enable_led ^= true;
+        }
+        if is_on {
+            led.set_high().unwrap();
+        } else {
+            led.set_low().unwrap();
+        }
+
+        was_on = is_on;
+    }
+}

examples/blinky.rs

@@ -18,7 +18,7 @@ fn main() -> ! {
     // the RCC register.
     let gpioa = dp.GPIOA.split(&mut rcc);
 
-    // Configure PA1 as output.
+    // Configure PA5 as output.
     let mut led = gpioa.pa5.into_push_pull_output();
 
     // Get the delay provider.