wake up pin working for the wake up

semestralka_2_uart/src/bin/main.rs

@@ -11,6 +11,7 @@ use embassy_time::{Duration, Timer};
 
 use dma_gpio::config::BAUD;
 use dma_gpio::wakeup::iwdg::{clear_wakeup_flags, init_watchdog_reset};
+use dma_gpio::wakeup::gpio::gpio_wakeup;
 use dma_gpio::sleep::handler::execute_low_power;
 use dma_gpio::hw_uart_pc::init::{init_hw_uart_to_pc, LowPowerCmd, CMD_CH};
 use {defmt_rtt as _, panic_probe as _};
@@ -29,7 +30,7 @@ async fn main(spawner: Spawner) {
     info!("LED ON (MCU awake)");
 
     // LED BLINK
-    // spawner.spawn(led_blink(led).unwrap());
+    spawner.spawn(led_blink(led).unwrap());
     
     // INIT HW UART
     init_hw_uart_to_pc(p.USART1, p.PA10, p.PA9, &spawner);
@@ -65,6 +66,7 @@ async fn main(spawner: Spawner) {
     info!("ready for uart");
     let mut iwdg = Some(p.IWDG);
     
+    spawner.spawn(gpio_wakeup(p.PA0, p.EXTI0).unwrap()); // exti wake up
     loop {
         let cmd = CMD_CH.receive().await;
         execute_low_power(cmd, &mut iwdg).await;

semestralka_2_uart/src/hw_uart_pc/init.rs

@@ -97,7 +97,7 @@ pub async fn uart_cmd_task() {
                     CMD_CH.send(LowPowerCmd::StopMode(StopModeConfig {
                         mode: stop_mode,
                         entry: StopEntry::Wfi, // to tu je, lebo nejdem prepisovat kod, kvoli
-                                               // posratemu halu co si nevie urobit konzistentnost
+                                               // pos**temu halu co si nevie urobit konzistentnost
                     })).await;
                     continue;
                 }

semestralka_2_uart/src/sleep/handler.rs

@@ -14,7 +14,7 @@ use defmt::info;
 pub async fn execute_low_power(
     cmd: LowPowerCmd, 
     iwdg: &mut Option<Peri<'static, peripherals::IWDG>>
-) -> ! {
+) {
     Timer::after(Duration::from_millis(10)).await;
 
     match cmd {
@@ -45,14 +45,16 @@ pub async fn execute_low_power(
         }
         LowPowerCmd::StopMode(StopModeConfig { mode, entry }) => {
             info!("Entering {:?} with {:?}", mode, entry);
-            if let Some(wdg) = iwdg.take() {
-                init_watchdog_reset(wdg).await;
-            }
             match mode {
                 StopMode::Stop0 => enter_stop0(),
                 StopMode::Stop1 => enter_stop1(entry),
                 StopMode::Stop2 => enter_stop2(entry),
-                StopMode::Stop3 => enter_stop3(entry),
+                StopMode::Stop3 => {
+                    if let Some(wdg) = iwdg.take() {
+                        init_watchdog_reset(wdg).await;
+                    }
+                    enter_stop3(entry);
+                }
             }
         }
     }

semestralka_2_uart/src/sleep/stop.rs

@@ -22,7 +22,7 @@ impl From<StopEntry> for u8 {
     }
 }
 
-pub fn enter_stop0() -> ! {
+pub fn enter_stop0() {
     unsafe extern "C" {
         fn rust_LL_PWR_SetPowerMode(mode: u32);
     }
@@ -35,12 +35,11 @@ pub fn enter_stop0() -> ! {
         let mut core = Peripherals::steal();
         core.SCB.set_sleepdeep();
         asm::wfi();
+        core.SCB.clear_sleepdeep();
+    }
 }
 
-    cortex_m::asm::udf();
-}
-
-pub fn enter_stop1(entry: StopEntry) -> ! {
+pub fn enter_stop1(entry: StopEntry) {
     unsafe extern "C" {
         fn HAL_PWREx_EnterSTOP1Mode(entry: u8);
     }
@@ -48,11 +47,9 @@ pub fn enter_stop1(entry: StopEntry) -> ! {
     unsafe {
         HAL_PWREx_EnterSTOP1Mode(entry.into());
     }
-
-    cortex_m::asm::udf()
 }
 
-pub fn enter_stop2(entry: StopEntry) -> ! {
+pub fn enter_stop2(entry: StopEntry) {
     unsafe extern "C" {
         fn HAL_PWREx_EnterSTOP2Mode(entry: u8);
     }
@@ -60,11 +57,9 @@ pub fn enter_stop2(entry: StopEntry) -> ! {
     unsafe {
         HAL_PWREx_EnterSTOP2Mode(entry.into());
     }
-
-    cortex_m::asm::udf()
 }
 
-pub fn enter_stop3(entry: StopEntry) -> ! {
+pub fn enter_stop3(entry: StopEntry) {
     unsafe extern "C" {
         fn HAL_PWREx_EnterSTOP3Mode(entry: u8);
     }
@@ -72,6 +67,4 @@ pub fn enter_stop3(entry: StopEntry) -> ! {
     unsafe {
         HAL_PWREx_EnterSTOP3Mode(entry.into());
     }
-
-    cortex_m::asm::udf()
 }

semestralka_2_uart/src/wakeup/gpio.rs

@@ -4,6 +4,7 @@ use defmt::info;
 use embassy_stm32::exti::ExtiInput;
 use embassy_stm32::gpio::Pull;
 use embassy_stm32::{peripherals, interrupt};
+use embassy_time::{Duration, Timer};
 use embassy_hal_internal::Peri;
 
 /// GPIO pin as an EXTI wake‑up source.
@@ -13,11 +14,12 @@ pub async fn gpio_wakeup(
     ch: Peri<'static, peripherals::EXTI0>
 ) {
     info!("Configuring EXTI wake input on PA0 (rising edge)");
-    let mut btn = ExtiInput::new(pin, ch, Pull::Down);
+    let mut btn = ExtiInput::new(pin, ch, Pull::Up);
 
     loop {
-        info!("→ Waiting for rising edge on PA0…");
-        btn.wait_for_rising_edge().await;
+        info!("Waiting for rising edge on PA0");
+        btn.wait_for_falling_edge().await;
         info!("GPIO wake‑up: event detected!");
+        Timer::after(Duration::from_millis(50)).await;
     }
 }