/*
******************************************************************************
File:     main.c
******************************************************************************
*/

/* Includes */

#include "LiquidCrystal4BIT.h"
#include "ADC1Lib.h"

#define TIM2_SR_UIF 0x0001
#define TIM3_SR_UIF 0x0001
#define TIM4_SR_UIF 0x0001
#define TIM5_SR_UIF 0x0001

volatile uint32_t cnt=0;
volatile uint32_t cnt1=0;
volatile uint32_t cnt2=0;
volatile uint32_t cnt3=0;
void timerConfig(TIM_TypeDef *timer, uint16_t psc, uint32_t arr);

void TIM2_IRQHandler()
{
   if(TIM2->SR&TIM2_SR_UIF)
   {
    cnt++;
       TIM2->SR&=~(1<<0);  //clear pending UIF bit
   }
}
void TIM3_IRQHandler()
{
   if(TIM3->SR&TIM3_SR_UIF)
   {
    cnt1++;
       TIM3->SR&=~(1<<0);  //clear pending UIF bit
   }
}

void TIM4_IRQHandler()
{
   if(TIM4->SR&TIM4_SR_UIF)
   {
    cnt2++;
       TIM4->SR&=~(1<<0);  //clear pending UIF bit
   }
}
void TIM5_IRQHandler()
{
   if(TIM5->SR&TIM5_SR_UIF)
   {
    cnt3++;
       TIM5->SR&=~(1<<0);  //clear pending UIF bit
   }
}

int main(void)
{
    pinInit();
    LCDInit();
    ADCPinConfig(ADCPort, ADCPin);
    ADCInit(ADC1, ADCChannel);
    LCDSetCursor(0,0);
    LCDWriteString("TIMER 2:");
    LCDSetCursor(0,1);
    LCDWriteString("TIMER 3:");
     LCDSetCursor(0,2); 
    LCDWriteString("TIMER 4:");
    LCDSetCursor(0,3);   
    LCDWriteString("TIMER 5:");
    timerConfig(TIM2, 42000, 499);
    timerConfig(TIM3, 42000, 999);
    timerConfig(TIM4, 42000, 1999);
    timerConfig(TIM5, 42000, 3999);
    NVIC_EnableIRQ(TIM2_IRQn);
    NVIC_EnableIRQ(TIM3_IRQn);
    NVIC_EnableIRQ(TIM4_IRQn);
    NVIC_EnableIRQ(TIM5_IRQn);
 while(1)
 {

   LCDSetCursor(10,0);
   LCDWriteInteger(cnt);
   LCDSetCursor(10,1);
   LCDWriteInteger(cnt1);
   LCDSetCursor(10,2);
   LCDWriteInteger(cnt2);
   LCDSetCursor(10,3);
   LCDWriteInteger(cnt3);
   LCDSetCursor(10,0);
   

 }
}

void timerConfig(TIM_TypeDef *timer, uint16_t psc, uint32_t arr)
{
 if(timer==TIM2)
       {
    RCC->APB1ENR|=(1<<0);   //CLOCK FOR TIMER 2
       }
      else if(timer==TIM3)
      {
    RCC->APB1ENR|=(1<<1);   //CLOCK FOR TIMER 3
      }
      else if(timer==TIM4)
      {
    RCC->APB1ENR|=(1<<2);   //CLOCK FOR TIMER 4
      }
      else if(timer==TIM5)
      {
    RCC->APB1ENR|=(1<<3);   //CLOCK FOR TIMER 5
      }
      else
      {
       LCDWriteCmd(0x80);
       LCDSetCursor(0,0);
       LCDWriteString("INVALID PARAMETER");
       LCDSetCursor(0,1);
       LCDWriteString("DURING INIT....");
       exit(0);
      }
    timer->CR1&=~(1<<1);        //UPDATE ENABLE
    timer->CR1&=~(1<<4);        //UP COUNTER
    timer->CNT=0;
    timer->DIER|=(1<<0);      //uie interrupt
    timer->PSC=(uint16_t)psc;
    if(timer==TIM2||timer==TIM5)
    {
       timer->ARR=(uint32_t)arr;
    }
    else
    {
     timer->ARR=(uint16_t)arr;
    }
    timer->CR1|=(1<<0);   //TIMER ENABLE
}