ATmega128 Timer Test

Function description/*All timing 1S*/

#define F_CPU 16000000UL

#include "DS12864.h"

#include

#include

volatile unsigned int count0=0,flag0=0;

volatile unsigned int count1=0,flag1=0;

volatile unsigned int count2=0,flag2=0;

volatile unsigned int count3=0,flag3=0;

/**********************************************************************

Subordinate module: timer test module

Function Name: Timer0_Init()

Function: Initialization

Entry parameters: None

Return parameter: None

*******************************************************************/

void Timer0_Init()

{

TCNT0 = 0x06;

TCCR0 = 0x03; //64 division

TIMSK |= (1<

}

/**********************************************************************

Subordinate module: timer test module

Function Name: Timer1_Init()

Function: Initialization

Entry parameters: None

Return parameter: None

*******************************************************************/

void Timer1_Init()

{

TCNT1H = 0x3C;

TCNT1L = 0xB0;

TCCR1A = 0x00;

TCCR1B = 0x03; //64 division

TIMSK |= (1<

}

/**********************************************************************

Subordinate module: timer test module

Function Name: Timer2_Init()

Function: Initialization

Entry parameters: None

Return parameter: None

*******************************************************************/

void Timer2_Init()

{

TCNT2 = 0x06;

TCCR2 = 0x03; //64 division

TIMSK |= (1<

}

/**********************************************************************

Subordinate module: timer test module

Function name: Timer3_Init()

Function: Initialization

Entry parameters: None

Return parameter: None

*******************************************************************/

void Timer3_Init()

{

TCNT3H = 0x3C;

TCNT3L = 0xB0;

TCCR3A = 0x00;

TCCR3B = 0x03; //64 division

ETIMSK |= (1<

}

/****************************Test function***************************/

int main(void)

{

DDRD = 0xF0;

DDRE = 0xF0; 

LCD12864_Init();

SREG &=~(1<<7);

Timer0_Init();

Timer1_Init();

Timer2_Init();

Timer3_Init();

SREG |= (1<<7);

LCD12864_Dis_Str(0,0,"Timer 0:");

LCD12864_Dis_Str(0,1,"Timer 1:");

LCD12864_Dis_Str(0,2,"Timer 2:");

LCD12864_Dis_Str(0,3,"Timer 3:");

    while(1)

    {

        //TODO:: Please write your application code 

  if(count0>1999){

  count0=0;

  flag0=(flag0+1)%10;

  LCD12864_Dis_Ctr(5,0,flag0+0x30);

  }

  if(count1>4)

  {

   count1=0;  

   flag1=(flag1+1)%10;

   LCD12864_Dis_Ctr(5,1,flag1+0x30);

  }

  if(count2>999)

  {

   count2=0;  

   flag2=(flag2+1)%10;

   LCD12864_Dis_Ctr(5,2,flag2+0x30);

  }

  if(count3>4)

  {

   count3=0;  

   flag3=(flag3+1)%10;

   LCD12864_Dis_Ctr(5,3,flag3+0x30);

  } 

    }

}

/**********************************************************************

Subordinate module: timer test module

Function name: SIGNAL(TIMER0_OVF_vect)

Function: Timer 0 interrupt function

Entry parameters: None

Return parameter: None

*******************************************************************/

SIGNAL(TIMER0_OVF_vect)

{

TCNT0 = 0x06;

count0++;

}

/**********************************************************************

Subordinate module: timer test module

Function name: SIGNAL(TIMER1_OVF_vect)

Function: Timer 1 interrupt function

Entry parameters: None

Return parameter: None

*******************************************************************/

SIGNAL (TIMER1_OVF_vect)

{

TCNT1H = 0x3C;

TCNT1L = 0xB0;

count1++;

}

/**********************************************************************

Subordinate module: timer test module

Function name: SIGNAL(TIMER2_OVF_vect)

Function: Timer 2 interrupt function

Entry parameters: None

Return parameter: None

*******************************************************************/

SIGNAL (TIMER2_OVF_vect)

{

count2++; 

}

/**********************************************************************

Subordinate module: timer test module

Function name: SIGNAL(TIMER3_OVF_vect)

Function: Timer 3 interrupt function

Entry parameters: None

Return parameter: None

*******************************************************************/

SIGNAL (TIMER3_OVF_vect)

{

TCNT3H = 0x3C;

TCNT3L = 0xB0;

count3++;

}