Finished Timer IRQ abstraction

Core/Include/Reg/SHAL_TIM_CALLBACK.h

@@ -0,0 +1,26 @@
+//
+// Created by Luca on 8/28/2025.
+//
+
+#ifndef SHMINGO_HAL_SHAL_TIMER_CALLBACK_H
+#define SHMINGO_HAL_SHAL_TIMER_CALLBACK_H
+
+#include "SHAL_TIM_REG.h"
+
+#define DEFINE_TIMER_IRQ(key, irq_handler)                \
+extern "C" void irq_handler(void) {                       \
+    auto tim_reg = getTimerRegister(key)                  \
+    if (tim_reg->SR & TIM_SR_UIF) {                       \
+        tim_reg->SR &= ~TIM_SR_UIF; /* clear flag */      \
+        auto cb = timer_callbacks[static_cast<int>(key)]; \
+        if (cb) cb();                                     \
+    }                                                     \
+}
+
+typedef void (*TimerCallback)(); //Typedef for callback function
+
+static TimerCallback timer_callbacks[static_cast<int>(Timer_Key::NUM_TIMERS)] = {nullptr}; //Timer IRQ Callback table
+
+void registerTimerCallback(Timer_Key key, TimerCallback callback);
+
+#endif //SHMINGO_HAL_SHAL_TIMER_CALLBACK_H

Core/Src/Reg/SHAL_TIM_CALLBACK.cpp

@@ -0,0 +1,9 @@
+//
+// Created by Luca on 8/28/2025.
+//
+
+#include "SHAL_TIMER_CALLBACK.h"
+
+void registerTimerCallback(Timer_Key key, TimerCallback callback){
+    timer_callbacks[static_cast<int>(key)] = callback;
+}