#include "stm32f4xx.h"
#include "stm32f4xx_rcc.h"
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_tim.h"
#include "stm32f4xx_exti.h"
#include"stm32f4xx_syscfg.h"
#include "misc.h"

int i=0;

void initTimer()
{

        TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);


        TIM_TimeBaseStructure.TIM_Prescaler = 8400;
        TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseStructure.TIM_Period = 2000;
        TIM_TimeBaseStructure.TIM_ClockDivision = 0;
        TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
        TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);


        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
        TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure2;

        TIM_TimeBaseStructure2.TIM_Prescaler = 8400;
        TIM_TimeBaseStructure2.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseStructure2.TIM_Period = 1000;
        TIM_TimeBaseStructure2.TIM_ClockDivision = 0;
        TIM_TimeBaseStructure2.TIM_RepetitionCounter = 0;
        TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure2);

        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);
        TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure3;

        TIM_TimeBaseStructure3.TIM_Prescaler = 8400;
        TIM_TimeBaseStructure3.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseStructure3.TIM_Period = 6000;
        TIM_TimeBaseStructure3.TIM_ClockDivision = 0;
        TIM_TimeBaseStructure3.TIM_RepetitionCounter = 0;
        TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure3);

        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6, ENABLE);
        TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure4;

        TIM_TimeBaseStructure4.TIM_Prescaler = 8400;
        TIM_TimeBaseStructure4.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseStructure4.TIM_Period = 8000;
        TIM_TimeBaseStructure4.TIM_ClockDivision = 0;
        TIM_TimeBaseStructure4.TIM_RepetitionCounter = 0;
        TIM_TimeBaseInit(TIM6, &TIM_TimeBaseStructure4);


        TIM_Cmd(TIM3, ENABLE);
        TIM_Cmd(TIM4, ENABLE);
        TIM_Cmd(TIM5, ENABLE);
        TIM_Cmd(TIM6, ENABLE);
}

void gpiod_init()
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
/* Configure PD12, PD13, PD14 and PD15 in output pushpull mode */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOD, &GPIO_InitStructure);

}

void initButton() {

        GPIO_InitTypeDef GPIO_InitStructure;
        RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
        GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
        GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void initIRQtim3()
{

        NVIC_InitTypeDef NVIC_InitStructure;
        NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x00;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);


        TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
        TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
}
void TIM3_IRQHandler()
{
        if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)
        {
                        GPIO_ToggleBits(GPIOD, GPIO_Pin_12);

                TIM_ClearITPendingBit(TIM3, TIM_IT_Update);

        }
}
void initEXTI() {

        RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
        SYSCFG_EXTILineConfig (EXTI_PortSourceGPIOA, EXTI_PinSource0);

        EXTI_InitTypeDef EXTI_InitStructure;

        EXTI_InitStructure.EXTI_Line = EXTI_Line0;
        EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
        EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;

        EXTI_InitStructure.EXTI_LineCmd = ENABLE;
        EXTI_Init(&EXTI_InitStructure);

        NVIC_InitTypeDef NVIC_InitStructure;
        NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);
}
void PWM(){
    int main (void)
    {

      RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);

      GPIO_InitTypeDef GPIO_InitStructure;  //pin pod PWM

       GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_13;
       GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
       GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
       GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
       GPIO_Init(GPIOD, &GPIO_InitStructure);
       GPIO_PinAFConfig(GPIOD,GPIO_PinSource13,GPIO_AF_TIM4) ;


        TIM_OCInitTypeDef TIM_OCInitStructure;   //PWM

        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable ;
        TIM_OCInitStructure.TIM_Pulse = 0 ;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High ;
        TIM_OC2Init(TIM4,&TIM_OCInitStructure);

         TIM_ARRPreloadConfig(TIM4,ENABLE) ;
         TIM_OC2PreloadConfig(TIM4,TIM_OCPreload_Enable ) ;


         TIM_Cmd(TIM4, ENABLE);
}
}
void EXTI0_IRQHandler(void)

{
if(EXTI_GetITStatus(EXTI_Line0) != RESET)
{
if(i==0)
TIM4->CCR2 = 0;
if(i==1)
TIM4->CCR2 = 100;
if(i==2)
TIM4->CCR2 = 200;
if(i==3)
TIM4->CCR2 = 300;
if(i==4)
TIM4->CCR2 = 400;
if(i==5)
TIM4->CCR2 = 500;
if(i==6)
TIM4->CCR2 = 600;
if(i==7)
TIM4->CCR2 = 700;
if(i==8)
TIM4->CCR2 = 800;
if(i==9)
TIM4->CCR2 = 900;
if(i==10)
TIM4->CCR2 = 1000;

i=i+1;

// miejsce na kod wywoływany w momencie wystąpienia przerwania
EXTI_ClearITPendingBit(EXTI_Line0);
}

}

int main (void)
{
SystemInit();
SystemCoreClockUpdate();
initTimer();
gpiod_init();
PWM();
//initEXTI();
//initButton();
initIRQtim3();



while(1)
{


}
}