Start timer abstractions

Core/Include/SHAL_TIM.h

@@ -5,4 +5,35 @@
 
 
 
+class Timer {
+public:
+
+    explicit Timer(Timer_Key t);
+
+    //Starts the counter
+    void start();
+
+    //Stops the counter
+    void stop();
+
+    void setPrescaler(uint16_t presc);
+
+    void setARR(uint16_t arr);
+
+    void enableInterrupt();
+
+private:
+
+    Timer_Key timer;
+    volatile TIM_TypeDef* timer_reg;
+
+};
+
+extern "C" void TIM2_IRQHandler(void){
+    if(TIM2->SR & TIM_SR_UIF) {
+
+    }
+}
+
+
 #endif