working on blinki example with timer 2 interrupt... not yet working

main.c

@@ -22,17 +22,6 @@ void EXTI0_1_IRQHandler(void)
 	}
 }
 
-
-void TIM2_IRQHandler(void)
-{
-	if(TIM2->SR & TIM_SR_UIF) {
-		// clear flag
-		TIM2->SR &= ~TIM_SR_UIF;
-		pinToggle(pinB3);
-		//led_on = !led_on;
-	}
-}
-
 void risingEdgeInterruptPinA1()
 {
 
@@ -66,11 +55,14 @@ void risingEdgeInterruptPinA1()
 
 void interruptLEDtoggleOnTIM1counterCompare()
 {
-	timerInitCounter(timer_2, 0xF, 65000, upCounting);
-		
+	timerInitCounter(timer_2, 0xFFFF, 0, upCounting);
+
+	// only allow under-/overflow interrupts
+	TIM2->CR1 |= TIM_CR1_URS;
+
 	// Enable Update Interrupt
 	TIM2->DIER |= TIM_DIER_UIE;	
-	
+
 	NVIC_SetPriority(TIM2_IRQn,0);
 	NVIC_EnableIRQ(TIM2_IRQn);
 	
@@ -78,20 +70,36 @@ void interruptLEDtoggleOnTIM1counterCompare()
 
 	while(1)
 	{
+		/*
 		if(led_on){
 			pinWrite(pinB3,1);
 		} else{
 			pinWrite(pinB3,0);
 		}
+		*/
 	}
 }
 
+void TIM2_IRQHandler(void)
+{
+	if(TIM2->SR & TIM_SR_UIF) {
+		// clear flag
+		TIM2->SR &= ~TIM_SR_UIF;
+		//pinWrite(pinB3,1);
+		pinToggle(pinB3);
+	}
+}
+
+
 int main(int argc, char *argv[])
 {
 	setup();
 
 	//risingEdgeInterruptPinA1();
 	interruptLEDtoggleOnTIM1counterCompare();
+
+	while(1);
+
 	return 1;
 }