/**
  ******************************************************************************
  * @file    main.c
  * @author  Ac6
  * @version V1.0
  * @date    01-December-2013
  * @brief   Default main function.
  ******************************************************************************
*/


#include "stm32f4xx.h"
#include "stm32f4_discovery.h"

int main(void)
{

	 /* GPIOD Periph clock enable */
	    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);



    GPIO_PinAFConfig(GPIOD, GPIO_PinSource12, GPIO_AF_TIM4);
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource13, GPIO_AF_TIM4);
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource14, GPIO_AF_TIM4);
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource15, GPIO_AF_TIM4);

    GPIO_InitTypeDef  GPIO_InitStructure;
    /* 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_AF;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOD, &GPIO_InitStructure);

    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
   TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

    TIM_OCInitTypeDef TIM_OCInitStructure12;

    	    /* PWM1 Mode configuration: */

    	    TIM_OCInitStructure12.TIM_OCMode = TIM_OCMode_PWM1;

    	    TIM_OCInitStructure12.TIM_OutputState = TIM_OutputState_Enable;

    	    TIM_OCInitStructure12.TIM_Pulse = 0;

    	    TIM_OCInitStructure12.TIM_OCPolarity = TIM_OCPolarity_High;

    	    TIM_OCInitTypeDef TIM_OCInitStructure13;

    	        	    /* PWM1 Mode configuration: */

    	        	    TIM_OCInitStructure13.TIM_OCMode = TIM_OCMode_PWM1;

    	        	    TIM_OCInitStructure13.TIM_OutputState = TIM_OutputState_Enable;

    	        	    TIM_OCInitStructure13.TIM_Pulse = 0;

    	        	    TIM_OCInitStructure13.TIM_OCPolarity = TIM_OCPolarity_High;

    	        	    TIM_OCInitTypeDef TIM_OCInitStructure14;

    	        	        	    /* PWM1 Mode configuration: */

    	        	        	    TIM_OCInitStructure14.TIM_OCMode = TIM_OCMode_PWM1;

    	        	        	    TIM_OCInitStructure14.TIM_OutputState = TIM_OutputState_Enable;

    	        	        	    TIM_OCInitStructure14.TIM_Pulse = 0;

    	        	        	    TIM_OCInitStructure14.TIM_OCPolarity = TIM_OCPolarity_High;

    	        	        	    TIM_OCInitTypeDef TIM_OCInitStructure15;

    	        	        	        	    /* PWM1 Mode configuration: */

    	        	        	        	    TIM_OCInitStructure15.TIM_OCMode = TIM_OCMode_PWM1;

    	        	        	        	    TIM_OCInitStructure15.TIM_OutputState = TIM_OutputState_Enable;

    	        	        	        	    TIM_OCInitStructure15.TIM_Pulse = 0;

    	        	        	        	    TIM_OCInitStructure15.TIM_OCPolarity = TIM_OCPolarity_High;




	/* Time base configuration */

	TIM_TimeBaseStructure.TIM_Period = 99;

	TIM_TimeBaseStructure.TIM_Prescaler = 4999;

	TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;

	TIM_TimeBaseStructure.TIM_CounterMode =  TIM_CounterMode_Up;

	TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);

    TIM_OC1Init(TIM4, &TIM_OCInitStructure12);
    TIM_OC1PreloadConfig(TIM4, TIM_OCPreload_Enable);

    TIM_OC2Init(TIM4, &TIM_OCInitStructure13);
    TIM_OC2PreloadConfig(TIM4, TIM_OCPreload_Enable);

    TIM_OC3Init(TIM4, &TIM_OCInitStructure14);
     TIM_OC3PreloadConfig(TIM4, TIM_OCPreload_Enable);

      TIM_OC4Init(TIM4, &TIM_OCInitStructure15);
      TIM_OC4PreloadConfig(TIM4, TIM_OCPreload_Enable);




//    TIM4->CCR1 = 5;
//    TIM4->CCR2 = 2;
//    TIM4->CCR3 = 4;
//    TIM4->CCR4 = 7;

    TIM_Cmd(TIM4, ENABLE);

    for(;;)
    {
    	for(int i = 1; i <99 ; i++) {

    		//TIM4->CCR1 = i;
    		TIM4->CCR2 = i;
    		//TIM4->CCR3 = i;
    		//TIM4->CCR4 = i;
    		for (int j=0;j<100000;j++);

    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);


    	}

    	for(int i = 99; i > 1 ; i--) {

    	    	    		//TIM4->CCR1 = i;
    	    	    		TIM4->CCR2 = i;
    	    	    		//TIM4->CCR3 = i;
    	    	    		//TIM4->CCR4 = i;
    	    	    		for (int j=0;j<100000;j++);

    	    	    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);

    	    	    	}

    	for(int i = 1; i <99 ; i++) {

    	    		TIM4->CCR1 = i;
    	    		//TIM4->CCR2 = i;
    	    		//TIM4->CCR3 = i;
    	    		//TIM4->CCR4 = i;
    	    		for (int j=0;j<100000;j++);

    	    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);


    	    	}

    	for(int i = 99; i > 1 ; i--) {

    	    	    	    		TIM4->CCR1 = i;
    	    	    	    		//TIM4->CCR2 = i;
    	    	    	    		//TIM4->CCR3 = i;
    	    	    	    		//TIM4->CCR4 = i;
    	    	    	    		for (int j=0;j<100000;j++);

    	    	    	    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);

    	    	    	    	}

    	for(int i = 1; i <99 ; i++) {

    	    		//TIM4->CCR1 = i;
    	    		//TIM4->CCR2 = i;
    	    		TIM4->CCR3 = i;
    	    		//TIM4->CCR4 = i;
    	    		for (int j=0;j<100000;j++);

    	    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);


    	    	}


    	for(int i = 99; i > 1 ; i--) {

    	    	    	    		//TIM4->CCR1 = i;
    	    	    	    		//TIM4->CCR2 = i;
    	    	    	    		TIM4->CCR3 = i;
    	    	    	    		//TIM4->CCR4 = i;
    	    	    	    		for (int j=0;j<100000;j++);

    	    	    	    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);

    	    	    	    	}
    	for(int i = 1; i <99 ; i++) {

    	    		//TIM4->CCR1 = i;
    	    		//TIM4->CCR2 = i;
    	    		//TIM4->CCR3 = i;
    	    		TIM4->CCR4 = i;
    	    		for (int j=0;j<100000;j++);

    	    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);


    	    	}




    	for(int i = 99; i > 1 ; i--) {

    	    	    		//TIM4->CCR1 = i;
    	    	    		//TIM4->CCR2 = i;
    	    	    		//TIM4->CCR3 = i;
    	    	    		TIM4->CCR4 = i;
    	    	    		for (int j=0;j<100000;j++);

    	    	    		//GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);

    	    	    	}


        //for (i=0;i<1000000;i++);
        //GPIO_ResetBits(GPIOD, GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15);
        //for (i=0;i<1000000;i++);
    }
}