#include "stm32f0xx.h"
#include "stm32f0xx_gpio.h"
#include "stm32f0xx_rcc.h"
#include "stm32f0xx_tim.h"
#include "stm32f0xx_misc.h"
#include <stdlib.h>
#include <stddef.h>


void init_Timer(void);
void init_Application(void);


int main(void)
{
	SystemInit();

	SysTick_Config(SystemCoreClock/100);
	init_Application();
	init_Timer();
	while(1)
	{

	}
	return 0;
}

void SysTick_Handler(void)
{
}

void TIM16_IRQHandler()
{
	GPIO_SetBits(GPIOA,GPIO_Pin_4);
	TIM_ClearITPendingBit(TIM16, TIM_IT_Update);
}

void init_Timer(void)
{
	//Takt für Timer 16 einschalten
	RCC_APB1PeriphClockCmd(RCC_APB2Periph_TIM16, ENABLE);

	//Timer 16 konfigurieren
	TIM_TimeBaseInitTypeDef TIM_TimeBase_InitStructure;

	TIM_TimeBase_InitStructure.TIM_ClockDivision  = TIM_CKD_DIV1;
	TIM_TimeBase_InitStructure.TIM_CounterMode = TIM_CounterMode_Up;
	TIM_TimeBase_InitStructure.TIM_Period = 100;				//Vorteiler 100 => 48kHz
	TIM_TimeBase_InitStructure.TIM_Prescaler = 10;				//Vorteiler 10 => 4,8MHz
	TIM_TimeBaseInit(TIM16, &TIM_TimeBase_InitStructure);
	TIM_ITConfig(TIM16, TIM_IT_Update, ENABLE);

	// Timer16 einschalten
	TIM_Cmd(TIM16, ENABLE);

	// Interruptcontroller konfigurieren
	NVIC_InitTypeDef NVIC_InitStructure;
	NVIC_InitStructure.NVIC_IRQChannel = TIM16_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	NVIC_InitStructure.NVIC_IRQChannelPriority = 0x0F;
	NVIC_Init(&NVIC_InitStructure);
}

void init_Application(void)
{


	//LED initalisieren
	GPIO_InitTypeDef GPIO_InitStructure;

	RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
	GPIO_Init(GPIOA, &GPIO_InitStructure);
}