interrupts

[t.man]

hi guys!

i need help in getting started with interrupts!

can anyone help in setting and using avr timers. i tried to read the application notes and datasheets but can't get going!

for example, i tried to run a code involving this code lines and it gave me errors:

void init_Ex1(void)
  {
    TCCR0 = (1<<CS02)|(1<<CS00); //Timer clock =
//1024
                                     //system clock /

TIFR = 1<<TOV0; //Clear TOV0 / clear
                      //pending interrupts
TIMSK = 1<<TOIE0; //Enable Timer0
                          //Overflow Interrupt
DDRB = 0xFF; //Set Port B as
                 //output
}


void interrupt [TIMER0_OVF0_vect] ISR_TOV0 (void)
{
PORTB = ~PORTB; // Toggle pins on Port B
}

can anyone help me with this code! how to code the main function for this? i'm using Atmega16
any additional information on setting and using interrupts will be appreciated!

 

[Pommie]

Can't help with avrs but your c looks fine if a little strangely commented.

Could I suggest that you post what the errors are. What you have stated above is a little like, I went to the doctor and he told me I was ill, what should I do?" Telling what the doctor (compiler) told you would be helpful. Your answer should not be "error on line 37".

Mike.

 

[t.man]

Can't help with avrs but your c looks fine if a little strangely commented.

Could I suggest that you post what the errors are. What you have stated above is a little like, I went to the doctor and he told me I was ill, what should I do?" Telling what the doctor (compiler) told you would be helpful. Your answer should not be "error on line 37".

Mike.

i get this: "TIMER0_OVF0_vect' undeclared here (not in a function)"
and i'm not so sure about the main function of the code!