I have already read some of the great tutorials on ADC-interrupt. So I was very excited to implement it. But I can't compile my code. It shows several errors. So I have to revert back to my old working code. I don't place here my entire code but two important functions. I guess I don't properly understand interrupt yet.
Working code:
void adc_init(void)
{
ADMUX |=(1<<REFS0);
ADCSRA |=(0<<ADPS2)|(1<<ADPS1)|(1<<ADPS0)|(1<<ADFR)|(1<<ADEN);
}
uint16_t adc_read(void)
{
ADCSRA |=(1<<ADSC);
while(ADCSRA & (1<<ADSC))
{
return(ADC);
}
}
Not working Interrupt implemented code:
uint16_t adc_read(void)
{
ADCSRA |=(1<<ADIE);
sei();
ADCSRA |=(1<<ADSC);
ISR(ADC_vect)
{
return(ADC);
}
}
uC=ATmega8L, uC freq=1MHz, Prescalar=8, AVR Studio 4.19
Plz tell me what I have done wrong when implementing interrupt?
